JP2018018499A - Information processing method and program for causing computer to execute the method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To further improve a user's experience for a virtual object.SOLUTION: An information processing method includes the steps of: generating virtual space data for defining a virtual space containing a virtual camera 300, a left hand object, a right hand object, and a wall object 500; updating a visual field CV of the virtual camera according to the movement of an HMD; generating visual field image data on the basis of the visual field CV of the virtual camera and the virtual space data; displaying a visual field image M in the HMD on the basis of the visual field image data; moving the left hand object according to the movement of an external controller for left hand; specifying a relative relationship (distance and relative speed) between the HMD and the external controller for left hand; and setting collision effects for defining the influence of the left hand object on the wall object 500 according to the specified relative relationship.SELECTED DRAWING: Figure 11

Description

  The present disclosure relates to an information processing method and a program for causing a computer to execute the information processing method.

  Non-Patent Document 1 discloses that a VR space is obtained by changing the state of a hand object in a VR (Virtual Reality) space according to the state (position, inclination, etc.) of the user's hand in the real space and operating the hand object. It is disclosed that a predetermined action is given to a predetermined object.

“Toybox Demo for Oculus Touch”, [online], October 13, 2015, Oculus, [Search July 6, 2016], Internet <https://www.youtube.com/watch?v= iFEMiyGMa58>

  However, Non-Patent Document 1 does not disclose setting a predetermined effect given to a predetermined object in the VR space in accordance with the user's movement in the real space. In particular, in Non-Patent Document 1, the effect of defining the influence of the hand object on the virtual object due to the collision (collision) between the hand object and the virtual object (target object) according to the movement of the user's hand. It is not disclosed to change (hereinafter referred to as the collision effect). Therefore, there is room for improving the user's experience in the VR space, AR (Augmented Reality) space, and MR (Mixed Reality) space by improving the influence on the virtual object in accordance with the movement of the user.

  An object of the present disclosure is to provide an information processing method capable of further improving a user's experience with a virtual object and a program for causing a computer to realize the information processing method.

According to one aspect of the present disclosure, in a system comprising a head mounted display and a position sensor configured to detect the position of the head mounted display and the position of a part of the body other than the user's head An information processing method is provided.
The information processing method is as follows:
(A) generating virtual space data defining a virtual space including a virtual camera, an operation object, and a target object;
(B) updating the field of view of the virtual camera in response to the movement of the head mounted display;
(C) generating visual field image data based on the visual field of the virtual camera and the virtual space data;
(D) displaying a field image on the head-mounted display based on the field image data;
(E) moving the operation object in response to movement of a part of the user's body;
(F) identifying a relative relationship between the head mounted display and the part of the user's body;
(G) setting a collision effect that defines an influence of the operation object on the target object according to the specified relative relationship.

  According to the present disclosure, it is possible to provide an information processing method capable of further improving a user's experience with respect to a virtual object (target object) and a program for causing a computer to realize the information processing method.

It is the schematic which shows a head mounted display (Head Mounted Display: HMD) system. It is a figure which shows the head of the user wearing HMD. It is a figure which shows the hardware constitutions of a control apparatus. It is a figure which shows an example of a specific structure of an external controller. It is a flowchart which shows the process which displays a visual field image on HMD. It is xyz space figure which shows an example of virtual space. (A) is yx top view of the virtual space shown in FIG. FIG. 7B is a zx plan view of the virtual space illustrated in FIG. 6. It is a figure which shows an example of the visual field image displayed on HMD. (A) is a figure showing a user wearing HMD and an external controller. (B) is a figure which shows the virtual space containing a virtual camera, a hand object, and a wall object. It is a flowchart for demonstrating the information processing method which concerns on this embodiment. (A) is a figure which shows the state which the user moved the external controller for left hands largely ahead. (B) is a figure which shows the wall object destroyed by the left hand object in the state shown to (a). (A) is a figure which shows the state which the user moved the left-hand external controller small forward. (B) is a figure which shows the wall object destroyed by the left hand object in the state shown to (a). (A) is a figure (the 1) which shows the influence area which affects the collision area and wall object of a left-hand object. (B) is a figure (the 2) which shows the influence area which affects the collision area and wall object of a left-hand object.

[Description of Embodiments Presented by the Present Disclosure]
An overview of an embodiment indicated by the present disclosure will be described.
(1) An information processing method in a system comprising a head mounted display, and a position sensor configured to detect the position of the head mounted display and a position of a part of the body other than the user's head,
(A) generating virtual space data defining a virtual space including a virtual camera, an operation object, and a target object;
(B) updating the field of view of the virtual camera in response to the movement of the head mounted display;
(C) generating visual field image data based on the visual field of the virtual camera and the virtual space data;
(D) displaying a field image on the head-mounted display based on the field image data;
(E) moving the operation object in response to movement of a part of the user's body;
(F) identifying a relative relationship between the head mounted display and the part of the user's body;
(G) setting a collision effect that defines an influence of the operation object on the target object according to the specified relative relationship.

  According to the above method, since the collision effect is set according to the relative relationship between the head mounted display and a part of the user's body (excluding the user's head), the virtual object (target object) It is possible to further improve the user experience (hereinafter referred to as virtual experience).

(2) The step (g)
(G1) setting a size of a collision area of the operation object according to the specified relative relationship;
(G2) The information processing method according to item (1), including the step of affecting the target object according to a positional relationship between the collision area of the operation object and the target object.

  According to the above method, the size of the collision area of the operation object is set according to the relative relationship between the head mounted display and a part of the user's body (excluding the user's head). The target object is influenced according to the positional relationship between the collision area of the operation object and the target object. In this way, the virtual experience can be further improved.

(3) The step (f) includes identifying a relative positional relationship between the head mounted display and the part of the user's body,
The information processing method according to item (1) or (2), wherein in step (g), the collision effect is set according to the specified relative positional relationship.

  According to the above method, since the collision effect is set according to the relative positional relationship between the head mounted display and a part of the user's body (excluding the user's head), the virtual experience can be further improved. It becomes possible.

(4) The step (f) includes identifying a distance between the head mounted display and the part of the user's body;
The information processing method according to item (3), wherein in step (g), the collision effect is set according to the specified distance.

  According to the above method, since the collision effect is set according to the distance between the head mounted display and a part of the user's body (excluding the user's head), the virtual experience can be further improved. Become.

(5) The step (f) includes identifying a relative speed of the part of the user's body with respect to the head mounted display;
The information processing method according to item (1) or (2), wherein in step (g), the collision effect is set according to the specified relative speed.

  According to the above method, since the collision effect is set according to the relative speed of a part of the user's body (excluding the user's head) with respect to the head mounted display, the virtual experience can be further enhanced.

(6) The step (f) includes identifying a relative velocity of the part of the user's body with respect to the head mounted display;
The information processing method according to item (4), wherein in step (g), the collision effect is set according to the specified distance and the specified relative speed.

  According to the above method, the collision effect depends on the distance between the head mounted display and a part of the user's body (excluding the user's head) and the relative speed of the part of the user's body with respect to the head mounted display. Because it is set, the virtual experience can be further improved.

(7) The step (f) further includes specifying a relative acceleration of the part of the user's body with respect to the head mounted display;
The information processing method according to item (1) or (2), wherein in step (g), the collision effect is set according to the specified relative acceleration.

  According to the above method, since the collision effect is set according to the relative acceleration of a part of the user's body (excluding the user's head) with respect to the head mounted display, the virtual experience can be further improved.

(8) The step (f) further includes identifying a relative acceleration of the part of the user's body with respect to the head mounted display;
The information processing method according to item (4), wherein in step (g), the collision effect is set according to the specified distance and the specified relative acceleration.

  According to the above-described method, the collision effect depends on the distance between the head mounted display and a part of the user's body (excluding the user's head) and the relative acceleration of the part of the user's body with respect to the head mounted display. Because it is set, the virtual experience can be further improved.

  (9) A program for causing a computer to execute the information processing method according to any one of items (1) to (8).

  A program that can further improve the virtual experience can be provided.

[Details of Embodiments Presented by the Present Disclosure]
Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In addition, about the member which has the same reference number as the member already demonstrated in description of this embodiment, the description is not repeated for convenience of explanation.

  First, the configuration of the head mounted display (HMD) system 1 will be described with reference to FIG. FIG. 1 is a schematic diagram showing an HMD system 1. As shown in FIG. 1, the HMD system 1 includes an HMD 110 mounted on the head of the user U, a position sensor 130, a control device 120, and an external controller 320.

  The HMD 110 includes a display unit 112, an HMD sensor 114, and a gaze sensor 140. The display unit 112 includes a non-transmissive display device configured to cover the field of view (field of view) of the user U wearing the HMD 110. Thereby, the user U can immerse in the virtual space by viewing only the visual field image displayed on the display unit 112. The display unit 112 includes a display unit for the left eye configured to provide an image to the left eye of the user U and a display unit for the right eye configured to provide an image to the right eye of the user U. Also good. The HMD 110 may include a transmissive display device. In this case, the transmissive display device may be temporarily configured as a non-transmissive display device by adjusting the transmittance.

  The HMD sensor 114 is mounted in the vicinity of the display unit 112 of the HMD 110. The HMD sensor 114 includes at least one of a geomagnetic sensor, an acceleration sensor, and a tilt sensor (such as an angular velocity sensor and a gyro sensor), and can detect various movements of the HMD 110 mounted on the head of the user U.

  The gaze sensor 140 has an eye tracking function that detects the direction of the line of sight of the user U. The gaze sensor 140 may include, for example, a right eye gaze sensor and a left eye gaze sensor. The right eye gaze sensor irradiates, for example, infrared light to the right eye of the user U, and detects reflected light reflected from the right eye (particularly the cornea and iris), thereby acquiring information related to the rotation angle of the right eye's eyeball. May be. On the other hand, the left eye gaze sensor irradiates the left eye of the user U with, for example, infrared light, and detects reflected light reflected from the left eye (particularly the cornea and iris), thereby providing information on the rotation angle of the left eye's eyeball. May be obtained.

  The position sensor 130 is configured by, for example, a position tracking camera, and is configured to detect the positions of the HMD 110 and the external controller 320. The position sensor 130 is communicably connected to the control device 120 by wireless or wired communication, and is configured to detect information on the position, inclination, or light emission intensity of a plurality of detection points (not shown) provided in the HMD 110. . Further, the position sensor 130 is configured to detect information on the position, inclination, and / or emission intensity of a plurality of detection points 304 (see FIG. 4) provided in the external controller 320. The detection point is, for example, a light emitting unit that emits infrared light or visible light. The position sensor 130 may include an infrared sensor and a plurality of optical cameras.

  The control device 120 acquires the position information of the HMD 110 based on the information acquired from the position sensor 130, and wears the position of the virtual camera in the virtual space and the HMD 110 in the real space based on the acquired position information. Thus, the position of the user U can be accurately associated. Furthermore, the control device 120 acquires position information of the external controller 320 based on the information acquired from the position sensor 130, and based on the acquired position information, a finger object (described later) is displayed in the virtual space. And the relative relationship position between the external controller 320 and the HMD 110 in the real space can be accurately associated with each other.

  Further, the control device 120 specifies the gaze of the right eye and the gaze of the left eye of the user U based on the information transmitted from the gaze sensor 140, and determines the gaze point that is the intersection of the gaze of the right eye and the gaze of the left eye. Can be identified. Furthermore, the control device 120 can specify the line-of-sight direction of the user U based on the specified gaze point. Here, the line-of-sight direction of the user U is the line-of-sight direction of both eyes of the user U and coincides with the direction of a straight line passing through the middle point of the line segment connecting the right eye and the left eye of the user U and the gazing point.

  Next, with reference to FIG. 2, a method for acquiring information related to the position and inclination of the HMD 110 will be described. FIG. 2 is a diagram illustrating the head of the user U wearing the HMD 110. Information on the position and inclination of the HMD 110 that is linked to the movement of the head of the user U wearing the HMD 110 can be detected by the position sensor 130 and / or the HMD sensor 114 mounted on the HMD 110. As shown in FIG. 2, three-dimensional coordinates (uvw coordinates) are defined centering on the head of the user U wearing the HMD 110. The vertical direction in which the user U stands up is defined as the v-axis, the direction orthogonal to the v-axis and passing through the center of the HMD 110 is defined as the w-axis, and the direction orthogonal to the v-axis and the w-axis is defined as the u-axis. The position sensor 130 and / or the HMD sensor 114 is an angle around each uvw axis (that is, a yaw angle indicating rotation around the v axis, a pitch angle indicating rotation around the u axis, and a center around the w axis). The inclination determined by the roll angle indicating rotation) is detected. The control device 120 determines angle information for controlling the visual axis of the virtual camera based on the detected angle change around each uvw axis.

  Next, the hardware configuration of the control device 120 will be described with reference to FIG. FIG. 3 is a diagram illustrating a hardware configuration of the control device 120. As shown in FIG. 3, the control device 120 includes a control unit 121, a storage unit 123, an I / O (input / output) interface 124, a communication interface 125, and a bus 126. The control unit 121, the storage unit 123, the I / O interface 124, and the communication interface 125 are connected to each other via a bus 126 so as to communicate with each other.

  The control device 120 may be configured as a personal computer, a tablet, or a wearable device separately from the HMD 110, or may be built in the HMD 110. In addition, some functions of the control device 120 may be mounted on the HMD 110, and the remaining functions of the control device 120 may be mounted on another device separate from the HMD 110.

  The control unit 121 includes a memory and a processor. The memory includes, for example, a ROM (Read Only Memory) in which various programs are stored, a RAM (Random Access Memory) having a plurality of work areas in which various programs executed by the processor are stored, and the like. The processor is, for example, a CPU (Central Processing Unit), an MPU (Micro Processing Unit), and / or a GPU (Graphics Processing Unit), and a program specified from various programs embedded in the ROM is expanded on the RAM. It is comprised so that various processes may be performed in cooperation with.

  In particular, the processor 121 develops a program (described later) for causing the computer to execute the information processing method according to the present embodiment on the RAM, and executes the program in cooperation with the RAM. Various operations of the control device 120 may be controlled. The control unit 121 displays a virtual space (view image) on the display unit 112 of the HMD 110 by executing a predetermined application program (game program) stored in the memory or the storage unit 123. Thereby, the user U can be immersed in the virtual space displayed on the display unit 112.

  The storage unit (storage) 123 is a storage device such as an HDD (Hard Disk Drive), an SSD (Solid State Drive), or a USB flash memory, and is configured to store programs and various data. The storage unit 123 may store a program that causes a computer to execute the information processing method according to the present embodiment. In addition, a user U authentication program, a game program including data on various images and objects, and the like may be stored. Furthermore, a database including tables for managing various data may be constructed in the storage unit 123.

  The I / O interface 124 is configured to connect the position sensor 130, the HMD 110, and the external controller 320 to the control device 120 in a communicable manner. For example, a USB (Universal Serial Bus) terminal, a DVI (Digital) The terminal includes a Visual Interface (HDMI) terminal, a High-Definition Multimedia Interface (HDMI) (registered trademark) terminal, and the like. The control device 120 may be wirelessly connected to each of the position sensor 130, the HMD 110, and the external controller 320.

  The communication interface 125 is configured to connect the control device 120 to a communication network 3 such as a LAN (Local Area Network), a WAN (Wide Area Network), or the Internet. The communication interface 125 includes various wired connection terminals for communicating with external devices on the network via the communication network 3 and various processing circuits for wireless connection, and for communicating via the communication network 3. It is configured to conform to the communication standard.

  Next, an example of a specific configuration of the external controller 320 will be described with reference to FIG. The external controller 320 detects the movement of a part of the body of the user U (a part other than the head, which is the user U's hand in the present embodiment), thereby moving the hand object displayed in the virtual space. Used to control. The external controller 320 is an external controller 320R for right hand operated by the right hand of the user U (hereinafter simply referred to as controller 320R) and an external controller 320L for left hand operated by the left hand of the user U (hereinafter simply referred to as controller 320L). And). The controller 320R is a device that indicates the position of the right hand of the user U and the movement of the finger of the right hand. Further, the right hand object 400R (see FIG. 9) that exists in the virtual space moves according to the movement of the controller 320R. The controller 320L is a device that indicates the position of the left hand of the user U and the movement of the finger of the left hand. Further, the left hand object 400L (see FIG. 9) that exists in the virtual space moves according to the movement of the controller 320L. Since the controller 320R and the controller 320L have substantially the same configuration, only the specific configuration of the controller 320R will be described below with reference to FIG. In the following description, the controllers 320L and 320R may be simply referred to as the external controller 320 for convenience.

  As shown in FIG. 4, the controller 320R includes an operation button 302, a plurality of detection points 304, a sensor (not shown), and a transceiver (not shown). Only one of the detection point 304 and the sensor may be provided. The operation button 302 includes a plurality of button groups configured to accept an operation input from the user U. The operation button 302 includes a push button, a trigger button, and an analog stick. The push-type button is a button operated by an operation of pressing with a thumb. For example, two push buttons 302 a and 302 b are provided on the top surface 322. The trigger type button is a button operated by an operation of pulling a trigger with an index finger or a middle finger. For example, a trigger button 302 e is provided on the front surface portion of the grip 324, and a trigger button 302 f is provided on the side surface portion of the grip 324. The trigger type buttons 302e and 302f are assumed to be operated by the index finger and the middle finger, respectively. The analog stick is a stick-type button that can be operated by being tilted 360 degrees from a predetermined neutral position in an arbitrary direction. For example, it is assumed that an analog stick 320i is provided on the top surface 322 and is operated using a thumb.

  The controller 320R includes a frame 326 that extends from both side surfaces of the grip 324 in a direction opposite to the top surface 322 to form a semicircular ring. A plurality of detection points 304 are embedded on the outer surface of the frame 326. The plurality of detection points 304 are, for example, a plurality of infrared LEDs arranged in a line along the circumferential direction of the frame 326. After the position sensor 130 detects information on the position, inclination, or light emission intensity of the plurality of detection points 304, the control device 120 detects the position or orientation (inclination / posture) of the controller 320R based on the information detected by the position sensor 130. Get information about (orientation).

  The sensor of the controller 320R may be, for example, a magnetic sensor, an angular velocity sensor, an acceleration sensor, or a combination thereof. When the user U moves the controller 320R, the sensor outputs a signal (for example, a signal indicating information related to magnetism, angular velocity, or acceleration) according to the direction or movement of the controller 320R. The control device 120 acquires information related to the position and orientation of the controller 320R based on the signal output from the sensor.

  The transceiver of the controller 320R is configured to transmit and receive data between the controller 320R and the control device 120. For example, the transceiver may transmit an operation signal corresponding to the operation input of the user U to the control device 120. The transceiver may receive an instruction signal for instructing the controller 320 </ b> R to emit light at the detection point 304 from the control device 120. Further, the transceiver may send a signal to the controller 120 indicating the value detected by the sensor.

  Next, processing for displaying a field-of-view image on the HMD 110 will be described with reference to FIGS. FIG. 5 is a flowchart showing a process for displaying the visual field image on the HMD 110. FIG. 6 is an xyz space diagram showing an example of the virtual space 200. FIG. 7A is a yx plan view of the virtual space 200 shown in FIG. FIG. 7B is a zx plan view of the virtual space 200 shown in FIG. FIG. 8 is a diagram illustrating an example of the visual field image M displayed on the HMD 110.

  As shown in FIG. 5, in step S1, the control unit 121 (see FIG. 3) generates virtual space data indicating the virtual space 200 including the virtual camera 300 and various objects. As shown in FIG. 6, the virtual space 200 is defined as an omnidirectional sphere with the center position 21 as the center (in FIG. 6, only the upper half celestial sphere is shown). In the virtual space 200, an xyz coordinate system with the center position 21 as the origin is set. The virtual camera 300 defines a visual axis L for specifying a visual field image M (see FIG. 8) displayed on the HMD 110. The uvw coordinate system that defines the visual field of the virtual camera 300 is determined so as to be linked to the uvw coordinate system that is defined around the head of the user U in the real space. Further, the control unit 121 may move the virtual camera 300 in the virtual space 200 according to the movement of the user U wearing the HMD 110 in the real space. Various objects in the virtual space 200 include, for example, a left hand object 400L, a right hand object 400R, and a wall object 500 (see FIG. 9).

  Next, in step S <b> 2, the control unit 121 specifies the field of view CV (see FIG. 7) of the virtual camera 300. Specifically, the control unit 121 acquires information on the position and inclination of the HMD 110 based on data indicating the state of the HMD 110 transmitted from the position sensor 130 and / or the HMD sensor 114. Next, the control unit 121 identifies the position and orientation of the virtual camera 300 in the virtual space 200 based on information regarding the position and tilt of the HMD 110. Next, the control unit 121 determines the visual axis L of the virtual camera 300 from the position and orientation of the virtual camera 300 and specifies the visual field CV of the virtual camera 300 from the determined visual axis L. Here, the visual field CV of the virtual camera 300 corresponds to a partial area of the virtual space 200 that can be viewed by the user U wearing the HMD 110. In other words, the visual field CV corresponds to a partial area of the virtual space 200 displayed on the HMD 110. Further, the visual field CV has a first region CVa set as an angular range of the polar angle α around the visual axis L in the xy plane shown in FIG. 7A and an xz plane shown in FIG. 7B. And a second region CVb set as an angular range of the azimuth angle β with the visual axis L as the center. The control unit 121 identifies the line of sight of the user U based on the data indicating the line of sight of the user U transmitted from the gaze sensor 140, and determines the direction of the virtual camera 300 based on the line of sight of the user U. May be.

  As described above, the control unit 121 can specify the visual field CV of the virtual camera 300 based on the data from the position sensor 130 and / or the HMD sensor 114. Here, when the user U wearing the HMD 110 moves, the control unit 121 changes the visual field CV of the virtual camera 300 based on the data indicating the movement of the HMD 110 transmitted from the position sensor 130 and / or the HMD sensor 114. be able to. That is, the control unit 121 can change the visual field CV according to the movement of the HMD 110. Similarly, when the line-of-sight direction of the user U changes, the control unit 121 can move the visual field CV of the virtual camera 300 based on the data indicating the line-of-sight direction of the user U transmitted from the gaze sensor 140. That is, the control unit 121 can change the visual field CV according to the change in the user U's line-of-sight direction.

  Next, in step S <b> 3, the control unit 121 generates visual field image data indicating the visual field image M displayed on the display unit 112 of the HMD 110. Specifically, the control unit 121 generates visual field image data based on virtual space data defining the virtual space 200 and the visual field CV of the virtual camera 300.

  Next, in step S4, the control unit 121 displays the field image M on the display unit 112 of the HMD 110 based on the field image data (see FIG. 7). As described above, the visual field CV of the virtual camera 300 is updated according to the movement of the user U wearing the HMD 110, and the visual field image M displayed on the display unit 112 of the HMD 110 is updated. It is possible to immerse in the space 200.

  Note that the virtual camera 300 may include a left-eye virtual camera and a right-eye virtual camera. In this case, the control unit 121 generates left-eye view image data indicating the left-eye view image based on the virtual space data and the view of the left-eye virtual camera. Further, the control unit 121 generates right-eye view image data indicating a right-eye view image based on the virtual space data and the view of the right-eye virtual camera. Thereafter, the control unit 121 displays the left-eye view image and the right-eye view image on the display unit 112 of the HMD 110 based on the left-eye view image data and the right-eye view image data. In this way, the user U can visually recognize the visual field image as a three-dimensional image from the left-eye visual field image and the right-eye visual field image. In this specification, for convenience of explanation, the number of virtual cameras 300 is one. Of course, the embodiment of the present disclosure is applicable even when the number of virtual cameras is two.

  Next, the left hand object 400L, the right hand object 400R, and the wall object 500 included in the virtual space 200 will be described with reference to FIG. FIG. 9A is a diagram showing the user U wearing the HMD 110 and the controllers 320L and 320R. FIG. 9B includes a virtual camera 300, a left hand object 400L (an example of an operation object), a right hand object 400R (an example of an operation object), and a wall object 500 (an example of a target object that is a virtual object). 2 is a diagram illustrating a virtual space 200. FIG.

  As illustrated in FIG. 9, the virtual space 200 includes a virtual camera 300, a left hand object 400 </ b> L, a right hand object 400 </ b> R, and a wall object 500. The control unit 121 generates virtual space data that defines the virtual space 200 including these objects. As described above, the virtual camera 300 is linked to the movement of the HMD 110 worn by the user U. That is, the visual field of the virtual camera 300 is updated according to the movement of the HMD 110. The left hand object 400L moves according to the movement of the controller 320L attached to the left hand of the user U. Similarly, the right hand object 400R moves according to the movement of the controller 320R attached to the right hand of the user U. Hereinafter, for convenience of explanation, the left hand object 400L and the right hand object 400R may be simply referred to as the hand object 400 in some cases. The left hand object 400L and the right hand object 400R each have a collision area CA. The collision area CA is used for collision determination (hit determination) between the hand object 400 and a target object (for example, the wall object 500). For example, when the collision area CA of the hand object 400 comes into contact with the collision area of the target object, the target object such as the wall object 500 has a predetermined influence. As shown in FIG. 9, the collision area CA may be defined by, for example, a sphere having a diameter R with the center position of the hand object 400 as the center. In the following description, it is assumed that the collision area CA is formed in a spherical shape having a diameter R with the center position of the object as the center.

  The wall object 500 is a virtual object affected by the left hand object 400L and the right hand object 400R. For example, when the left hand object 400L contacts the wall object 500, the portion of the wall object 500 that contacts the collision area CA of the left hand object 400L is destroyed. The wall object 500 also has a collision area. In this embodiment, it is assumed that the collision area of the wall object 500 coincides with the area constituting the wall object 500.

  Next, an information processing method according to the present embodiment will be described with reference to FIGS. FIG. 10 is a flowchart for explaining the information processing method according to the present embodiment. FIG. 11A is a diagram showing a state where the user U has moved the controller 320L greatly forward (+ W direction). FIG. 11B is a diagram showing the wall object 500 destroyed by the left hand object 400L in the state shown in FIG. FIG. 12A is a diagram illustrating a state where the user U has moved the controller 320L forward (+ w direction) small. FIG. 12B shows the wall object 500 destroyed by the left hand object 400L in the state shown in FIG.

  In the information processing method according to the present embodiment, the control unit 121 sets a collision effect that defines the influence of the controller 320L on the wall object 500 and sets a collision effect that defines the influence of the controller 320R on the wall object 500. Is configured to do. On the other hand, since the controllers 320L and 320R have substantially the same configuration, only the collision effect that defines the influence of the controller 320L on the wall object 500 will be referred to for convenience of explanation. In addition, the control unit 121 executes each process illustrated in FIG. 10 for each frame (a still image constituting a moving image). Note that the control unit 121 may execute the processes illustrated in FIG. 10 at predetermined time intervals.

  As illustrated in FIG. 10, in step S11, the control unit 121 specifies a distance D (an example of a relative relationship) between the HMD 110 and the controller 320L. Specifically, the control unit 121 acquires the position information of the HMD 110 and the position information of the controller 320L based on the information acquired from the position sensor 130. Based on the acquired position information, the control unit 121 acquires the position information of the HMD 110. A distance D between the HMD 110 and the controller 320L in the w-axis direction is specified. In the present embodiment, the control unit 121 specifies the distance D between the HMD 110 and the controller 320L in the w-axis direction, but the distance between the HMD 110 and the controller 320L in a predetermined direction other than the w-axis direction. May be specified. Furthermore, the control unit 121 may specify a linear distance between the HMD 110 and the controller 320L. In this case, when the position vector of the HMD 110 is P H and the position vector of the controller 320L is PL, the linear distance between the HMD 110 and the controller 320L is | P H −P L |.

  Next, in step S <b> 12, the control unit 121 specifies the relative speed V of the controller 320 </ b> L with respect to the HMD 110. Specifically, the control unit 121 acquires the position information of the HMD 110 and the position information of the controller 320L based on the information acquired from the position sensor 130, and the w-axis based on the acquired position information. A relative speed V (an example of a relative relationship) of the controller 320L with respect to the HMD 110 in the direction is specified.

  For example, the distance between the HMD 110 and the controller 320L in the w-axis direction at the n-th (n is an integer of 1 or more) frame is D n, and the HMD 110 in the w-axis direction at the (n + 1) -th frame is When the distance to the controller 320L is D n + 1 and the time interval between each frame is ΔT, the relative velocity V n in the w-axis direction at the n-th frame is V n = (D n −D n + 1). / ΔT. Here, when the frame rate of the moving image is 90 fps, ΔT is 1/90.

  Next, in step S13, the control unit 121 determines whether or not the specified distance D is greater than the predetermined distance Dth, and determines whether or not the specified relative speed V is greater than the predetermined relative speed Vth. judge. Here, the predetermined distance Dth and the predetermined relative speed Vth may be appropriately set according to the content of the game. When the control unit 121 determines that the specified distance D is greater than the predetermined distance Dth (D> Dth) and the specified relative speed V is greater than the predetermined relative speed Vth (V> Vth) ( As shown in FIG. 11 (b), the diameter R of the collision area CA of the left hand object 400L is set to the diameter R2 (step S14). On the other hand, when the control unit 121 determines that D> Dth and V> Vth are not satisfied (NO in step S13), as illustrated in FIG. 12B, the diameter R of the collision area CA of the left-hand object 400L is set to the diameter R1 ( R1 <R2) is set (step S15). Thus, the size of the collision area CA is set according to the distance D between the HMD 110 and the controller 320L and the relative speed V of the controller 320L with respect to the HMD 110. In steps S14 and S15, the radius of the collision area CA may be set according to the distance D and the relative speed V instead of the diameter of the collision area CA.

  Next, in step S16, the control unit 121 determines whether or not the wall object 500 is in contact with the collision area CA of the left hand object 400L. When the control unit 121 determines that the wall object 500 is in contact with the collision area CA of the left hand object 400L (YES in step S16), the control unit 121 has a predetermined influence on the portion of the wall object 500 that is in contact with the collision area CA. (Step S17). For example, a portion of the wall object 500 that is in contact with the collision area CA may be destroyed, or a predetermined amount of damage may be given to the wall object 500. As shown in FIG. 11B, the portion of the wall object 500 that contacts the collision area CA of the left hand object 400L is destroyed. Further, the collision area CA of the left-hand object 400L shown in FIG. 11B is larger than the collision area CA of the left-hand object 400L shown in FIG. 12B (since R2> R1), the state shown in FIG. Then, the amount of the wall object 500 destroyed by the left hand object 400L becomes larger than that in the state shown in FIG.

  On the other hand, when the control unit 121 determines that the wall object 500 is not in contact with the collision area CA of the left hand object 400L (NO in step S16), the wall object 500 is not given a predetermined influence. Thereafter, the control unit 121 updates the virtual space data defining the virtual space including the wall object 500, and displays the next frame (still image) on the HMD 110 based on the updated virtual space data (step S18). ). Thereafter, the process returns to step S11.

  Thus, according to the present embodiment, the influence (collision effect) that the controller 320L has on the wall object 500 is set according to the relative relationship (relative positional relationship and relative speed) between the HMD 110 and the controller 320L. Therefore, it is possible to further enhance the user U's immersive feeling with respect to the virtual space 200. In particular, the size (diameter) of the collision area CA of the left hand object 400L is set according to the distance D between the HMD 110 and the controller 320L and the relative speed V of the controller 320L with respect to the HMD 110. Furthermore, a predetermined influence is given to the wall object 500 in accordance with the positional relationship between the collision area CA of the left hand object 400L and the wall object 500. For this reason, it becomes possible to further enhance the immersive feeling of the user U with respect to the virtual space 200.

  More specifically, as shown in FIG. 11, when the user U moves the controller 320L large and quickly (that is, when the user U moves the controller 320L to satisfy D> Dth and V> Vth). ) Since the collision area CA of the left hand object 400L increases, the amount of the wall object 500 that is destroyed by the left hand object 400L increases. On the other hand, as shown in FIG. 12, when the user U moves the controller 320L small (at least when the user U moves the controller 320L so that D ≦ Dth), the wall object destroyed by the left hand object 400 The amount of 500 becomes smaller. For this reason, since the quantity of the wall object 500 destroyed according to the operation | movement of the user U changes, the user U can further immerse in a virtual space, and a rich virtual experience is provided.

  In this embodiment, whether or not the distance D> Dth and the relative speed V> Vth is determined in step S13, but only the distance D> Dth may be determined. In this case, when it is determined that the distance D> Dth, the control unit 121 sets the diameter R of the collision area CA of the left hand object 400L to the diameter R2. On the other hand, when determining that the distance D ≦ Dth, the control unit 121 sets the diameter R of the collision area CA of the left hand object 400L to the diameter R1. Furthermore, in step S13, only the relative speed V> Vth may be determined. Similarly, in this case, when it is determined that the relative speed V> Vth, the control unit 121 sets the diameter R of the collision area CA of the left hand object 400L to the diameter R2. On the other hand, when determining that the relative speed V ≦ Vth, the control unit 121 sets the diameter R of the collision area CA of the left hand object 400L to the diameter R1.

  Furthermore, in step S13, it may be determined whether the relative acceleration a of the controller 320L with respect to the HMD 110 is greater than a predetermined relative acceleration ath (a> ath). In this case, before step S13, the control unit 121 specifies the relative acceleration a (an example of a relative relationship) of the controller 320L with respect to the HMD 110 in the w-axis direction.

  For example, the relative speed of the controller 320L with respect to the HMD 110 in the w-axis direction at the n-th (n is an integer of 1 or more) frame is V n + 1, and the controller 320L with respect to the HMD 110 in the w-axis direction at the (n + 1) -th frame Is a relative speed V n + 1 and a time interval between frames is ΔT, the relative acceleration an in the w-axis direction at the n-th frame is an = (V n −V n + 1) / ΔT. .

  In this case, when it is determined that the relative acceleration a> ath, the control unit 121 sets the diameter R of the collision area CA of the left hand object 400L to the diameter R2. On the other hand, when determining that the relative acceleration a ≦ ath, the control unit 121 sets the diameter R of the collision area CA of the left hand object 400L to the diameter R1.

  Further, in step S13, it may be determined whether or not the distance D> Dth and the relative acceleration a> ath. Similarly, in this case, when the control unit 121 determines that the distance D> Dth and the relative acceleration a> ath, the diameter R of the collision area CA of the left hand object 400L is set to the diameter R2. On the other hand, when the control unit 121 determines that the distance D> Dth and the relative acceleration a> ath, the diameter R of the collision area CA of the left hand object 400L is set to the diameter R1.

  In the present embodiment, the diameter R of the collision area CA of the left hand object 400L is set to the diameter R1 when the determination condition defined in step S13 is satisfied. However, when the determination condition is satisfied, the control unit 121 refers to a table or a function indicating the relationship between the diameter R of the collision area CA and the relative speed V, thereby increasing the relative speed V. Accordingly, the diameter R of the collision area CA (in other words, the size of the collision area CA) may be changed continuously or stepwise. For example, the control unit 121 may increase the diameter R of the collision area CA (in other words, the size of the collision area CA) continuously or stepwise as the relative speed V increases.

  Similarly, when the determination condition is satisfied, the control unit 121 refers to a table or a function indicating the relationship between the diameter R of the collision area CA and the distance D, and thus according to the size of the distance D. The diameter R of the collision area CA (in other words, the size of the collision area CA) may be changed continuously or stepwise. For example, the control unit 121 may increase the diameter R of the collision area CA (in other words, the size of the collision area CA) continuously or stepwise as the distance D increases.

(Modification)
An information processing method according to a modification of the present embodiment will be described with reference to FIGS. 10 and 13. FIGS. 13A and 13B show the influence area EA that affects the collision area CA and the wall object 500 of the left hand object 400L. The size (diameter) of the collision area CA shown in FIG. 13 (a) is the same as the size (diameter) of the collision area CA shown in FIG. 13 (b), while the influence range shown in FIG. 13 (a). The size (diameter) of EA is smaller than the size (diameter) of the influence range EA shown in FIG. Here, the influence range EA of the left hand object 400L is defined as a range in which the left hand object 400L affects a target object such as the wall object 500.

  In the information processing method according to the present embodiment, when the determination condition defined in Step S13 shown in FIG. 10 is satisfied (YES in Step S13), the diameter R of the collision area CA is set to the diameter R2 (Step S13). S14) If the determination condition is not satisfied (NO in step S13), the diameter R of the collision area CA is set to the diameter R1 (R2> R1) (step S15).

  On the other hand, in the information processing method according to the modified example, when the determination condition defined in step S13 is satisfied (YES in step S13), the diameter R of the collision area CA as shown in FIG. Is set to the diameter R1, and the diameter of the influence range EA is set to Rb. On the other hand, when the determination condition is not satisfied (NO in step S13), as shown in FIG. 13A, the diameter R of the collision area CA is set to the diameter R1, and the diameter of the influence range EA is Ra (Rb > Ra). As described above, in the information processing method according to the modified example, the diameter of the collision area CA is changed while the diameter of the collision area CA is changed according to the determination condition defined in step S13.

  Thereafter, in step S16, the control unit 121 determines whether or not the wall object 500 is in contact with the collision area CA or the influence range EA of the left hand object 400L. When it is determined that the wall object 500 is in contact with the collision area CA or the influence range EA of the left hand object 400L (YES in step S16), the control unit 121 is in contact with the collision area CA or the influence range EA. A predetermined influence is given to the portion 500 (step S17). For example, as shown in FIG. 13, the portion of the wall object 500 that is in contact with the collision area CA or the influence range EA is destroyed. Further, since the influence range EA of the left hand object 400L shown in FIG. 13B is larger than the influence range EA of the left hand object 400L shown in FIG. 13A (because Rb> Ra), FIG. In the state shown in FIG. 13, the amount of the wall object 500 destroyed by the left hand object 400L is larger than that in the state shown in FIG.

  On the other hand, when the control unit 121 determines that the wall object 500 is not in contact with the collision area CA or the influence range EA of the left hand object 400L (NO in step S16), the wall object 500 is not given a predetermined influence. .

  Thus, according to this modification, the influence (collision effect) that the controller 320L has on the wall object 500 is set according to the relative relationship (distance and relative speed) between the HMD 110 and the controller 320L. Therefore, it becomes possible to further enhance the immersive feeling of the user U with respect to the virtual space 200. In particular, the size (diameter) of the influence range EA of the left hand object 400L is set according to the determination condition defined in step S13. Furthermore, a predetermined influence is given to the wall object 500 according to the positional relationship between the collision area CA and the influence range EA and the wall object 500. For this reason, it becomes possible to further enhance the immersive feeling of the user U with respect to the virtual space 200 and provide a rich virtual experience.

  An information processing program for causing a computer (processor) to execute the information processing method according to the present embodiment is incorporated in advance in the storage unit 123 or the ROM in order to implement various processes executed by the control unit 121 by software. Also good. Alternatively, the information processing program includes a magnetic disk (HDD, floppy disk), an optical disk (CD-ROM, DVD-ROM, Blu-ray disk, etc.), a magneto-optical disk (MO, etc.), flash memory (SD card, USB memory, It may be stored in a computer-readable storage medium such as SSD. In this case, the program stored in the storage medium is incorporated into the storage unit 123 by connecting the storage medium to the control device 120. The control unit 121 executes the information processing method according to the present embodiment by loading the information processing program incorporated in the storage unit 123 onto the RAM and executing the program loaded by the processor.

  Further, the information processing program may be downloaded from a computer on the communication network 3 via the communication interface 125. Similarly in this case, the downloaded program is incorporated in the storage unit 123.

  As mentioned above, although embodiment of this indication was described, the technical scope of this invention should not be limitedly interpreted by description of this embodiment. This embodiment is an example, and it is understood by those skilled in the art that various modifications can be made within the scope of the invention described in the claims. The technical scope of the present invention should be determined based on the scope of the invention described in the claims and the equivalents thereof.

  In the present embodiment, the movement of the hand object is controlled according to the movement of the external controller 320 indicating the movement of the user U's hand, but the hand in the virtual space is controlled according to the movement amount of the user U's hand itself. The movement of the object may be controlled. For example, instead of using an external controller, by using a glove-type device or a ring-type device worn on the user's finger, the position sensor 130 can detect the position and movement amount of the user U's hand, The movement and state of the user's U finger can be detected. Further, the position sensor 130 may be a camera configured to image the user U's hand (including fingers). In this case, by capturing the user's hand using a camera, the position and movement of the user's U hand can be determined based on the image data on which the user's hand is displayed without directly attaching any device to the user's finger. The amount can be detected, and the movement and state of the finger of the user U can be detected.

  In the present embodiment, the collision effect that defines the influence of the hand object on the wall object is set according to the position and / or movement of the hand that is a part of the body other than the head of the user U. The present embodiment is not limited to this. For example, depending on the position and / or movement of a foot that is a part of the body other than the head of the user U, the influence of a foot object (an example of an operation object) linked to the movement of the user U's foot on the target object A prescribed collision effect may be set. Thus, in this embodiment, the relative relationship (distance and relative speed) between the HMD 110 and a part of the body of the user U is specified, and the user U is determined according to the specified relative relationship. A collision effect may be set that regulates the influence of an operation object linked to a part of the body on the target object.

  In the present embodiment, the wall object 500 is described as an example of a virtual object (target object) that has a predetermined influence by the hand object, but the attributes of the virtual object are not particularly limited. For example, when the virtual object is a soil object, the excavation amount of the soil object excavated by the hand object 400 may be set according to the determination condition in step S13 illustrated in FIG. When the virtual object is an avatar object operated by another user, the amount of damage given to the avatar object may be set according to the determination condition in step S13 shown in FIG.

1: HMD system 3: Communication network 21: Center position 112: Display unit 114: HMD sensor 120: Control device 121: Control unit 123: Storage unit 124: I / O interface 125: Communication interface 126: Bus 130: Position sensor 140 : Gaze sensor 200: virtual space 300: virtual camera 302: operation buttons 302a, 302b: push buttons 302e, 302f: trigger buttons 304: detection point 320: external controller 320i: analog stick 320L: external controller for left hand (controller)
320R: External controller for right hand (controller)
322: Top surface 324: Grip 326: Frame 400: Hand object 400L: Left hand object 400R: Right hand object 500: Wall object CA: Collision area CV: Field of view CVa: First area CVb: Second area EA: Influence range

Claims (9)

An information processing method in a system comprising: a head mounted display; and a position sensor configured to detect the position of the head mounted display and a position of a body part other than a user's head,
(A) generating virtual space data defining a virtual space including a virtual camera, an operation object, and a target object;
(B) updating the field of view of the virtual camera in response to the movement of the head mounted display;
(C) generating visual field image data based on the visual field of the virtual camera and the virtual space data;
(D) displaying a field image on the head-mounted display based on the field image data;
(E) moving the operation object in response to the movement of the part of the user's body;
(F) identifying a relative relationship between the head mounted display and the part of the user's body;
(G) setting a collision effect that defines an influence of the operation object on the target object according to the specified relative relationship, and an information processing method. The step (g)
(G1) setting a size of a collision area of the operation object according to the specified relative relationship;
The information processing method according to claim 1, further comprising: (g2) affecting the target object according to a positional relationship between the collision area of the operation object and the target object. The step (f) includes identifying a relative positional relationship between the head mounted display and the part of the user's body;
The information processing method according to claim 1 or 2, wherein in the step (g), the collision effect is set according to the specified relative positional relationship. Said step (f) comprises identifying a distance between said head mounted display and said part of said user's body;
The information processing method according to claim 3, wherein in the step (g), the collision effect is set according to the specified distance. Said step (f) comprises identifying the relative velocity of said part of said user's body relative to said head mounted display;
The information processing method according to claim 1 or 2, wherein in the step (g), the collision effect is set according to the specified relative speed. Said step (f) comprises identifying the relative velocity of said part of said user's body relative to said head mounted display;
The information processing method according to claim 4, wherein in the step (g), the collision effect is set according to the specified distance and the specified relative speed. Said step (f) further comprises identifying a relative acceleration of said part of said user's body relative to said head mounted display;
The information processing method according to claim 1 or 2, wherein in the step (g), the collision effect is set according to the specified relative acceleration. Said step (f) further comprises identifying a relative acceleration of said part of said user's body relative to said head mounted display;
5. The information processing method according to claim 4, wherein in the step (g), the collision effect is set according to the specified distance and the specified relative acceleration. The program for making a computer perform the information processing method as described in any one of Claims 1-8.