JP2010286907A - Graphics processor, graphics processing method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mechanism for drawing an object based on a pseud-three-dimensional effect expressed by a two-dimensional graphics, without false recognition. <P>SOLUTION: A pseud-three-dimensional effect determining part 202 determines whether the pseud-three-dimensional effect is included in a two-dimensional graphics drawing command received by a two-dimensional graphics drawing command receiving part 201 or not. A three-dimensional object drawing command generating part 203 generates a three-dimensional object drawing command based on the pseud-three-dimensional effect, when the pseud-three-dimensional effect determining part 202 determines that the pseud-three-dimensional effect is included. A three-dimensional object drawing command executing part 204 executes the three-dimensional object drawing command generated by the three-dimensional object drawing command generating part 203, arranges the three-dimensional object in a three-dimensional virtual space, and performs rendering. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a graphics processing apparatus and graphics processing method for processing a two-dimensional graphics rendering processing command, and a program for causing a computer to execute the graphics processing method.

  Conventionally, in order to display as many windows as possible on a screen having a limited area, there is a method of arranging and displaying windows in a three-dimensional virtual space. For example, the following Patent Document 1 proposes a technique that increases the storage efficiency of a window and makes it possible to discriminate display contents by tilting the window in the depth direction and performing perspective projection in a three-dimensional virtual space. Yes.

Japanese Patent Laid-Open No. 11-65806

  In general, user interface components placed in a window are represented by two-dimensional graphics, but use a pseudo three-dimensional effect that simulates unevenness like a three-dimensional object using color shading. There are many. Then, the user recognizes the state of the user interface component, that is, whether or not the component is pressed, while facing the window based on the shading. In addition, the shading is generally designed to match when facing each other.

  However, in the conventional method, when such a two-dimensional graphic drawn in a window is placed in a three-dimensional virtual space, there is a possibility that the uneven state may be misidentified depending on the shading. was there.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a mechanism for rendering an object based on a pseudo-three-dimensional effect expressed by two-dimensional graphics without misunderstanding. .

A graphics processing apparatus according to the present invention is a graphics processing apparatus that performs processing of a two-dimensional graphics rendering processing command, and includes a receiving unit that receives the two-dimensional graphics rendering processing command, and a receiver that receives the two-dimensional graphics rendering processing command. Determining means for determining whether or not the three-dimensional graphics rendering processing instruction includes a pseudo three-dimensional effect that pseudo-represents a three-dimensional object; and in the determining means, the pseudo three-dimensional effect is added to the two-dimensional graphics rendering processing instruction. And generating a three-dimensional object drawing processing instruction based on the pseudo three-dimensional effect, and executing the three-dimensional object drawing processing instruction generated by the generating means, Three-dimensional object drawing processing instruction executer that performs rendering processing by placing the original object in the three-dimensional virtual space With the door.
The present invention also includes a graphics processing method by the above-described graphics processing apparatus and a program for causing a computer to execute the graphics processing method.

  According to the present invention, an object based on a pseudo three-dimensional effect expressed by two-dimensional graphics can be drawn without misunderstanding.

It is a block diagram which shows an example of the hardware constitutions of the graphics processing apparatus which concerns on embodiment of this invention. It is a block diagram which shows an example of a function structure of the graphics processing apparatus which concerns on embodiment of this invention. It is a flowchart which shows an example of the process sequence of the graphics processing method by the graphics processing apparatus which concerns on embodiment of this invention. It is a schematic diagram which shows embodiment of this invention and shows an example of the pseudo | simulation three-dimensional effect which concerns on a two-dimensional graphics drawing process command. It is a schematic diagram which shows embodiment of this invention and shows an example of the method of converting the pseudo | simulation three-dimensional effect which concerns on a two-dimensional graphics drawing process command into a three-dimensional object. It is a schematic diagram which shows embodiment of this invention and shows an example of the relationship between a two-dimensional graphics drawing process command and three-dimensional virtual space arrangement | positioning information. It is a schematic diagram which shows embodiment of this invention and shows an example of a mode that the two-dimensional graphics drawing process command containing a pseudo three-dimensional effect is arrange | positioned by three-dimensional virtual space arrangement information. Drawing processing of a two-dimensional graphics drawing processing command group including a two-dimensional graphics drawing processing command including a pseudo three-dimensional effect and a two-dimensional graphics drawing processing command not including a pseudo three-dimensional effect according to the embodiment of the present invention It is a schematic diagram which shows an example of a result. It is a schematic diagram which shows embodiment of this invention and shows an example of the pseudo | simulation three-dimensional effect which concerns on a two-dimensional graphics drawing process command. Drawing processing of a two-dimensional graphics drawing processing command group including a two-dimensional graphics drawing processing command including a pseudo three-dimensional effect and a two-dimensional graphics drawing processing command not including a pseudo three-dimensional effect according to the embodiment of the present invention It is a schematic diagram which shows an example of a result. It is a schematic diagram which shows embodiment of this invention and shows an example of the pseudo | simulation three-dimensional effect which concerns on a two-dimensional graphics drawing process command. Drawing processing of a two-dimensional graphics drawing processing command group including a two-dimensional graphics drawing processing command including a pseudo three-dimensional effect and a two-dimensional graphics drawing processing command not including a pseudo three-dimensional effect according to the embodiment of the present invention It is a schematic diagram which shows an example of a result. It is a schematic diagram which shows embodiment of this invention and shows an example of the processing method of the two-dimensional graphics drawing process command containing the drop shadow effect.

  Hereinafter, embodiments (embodiments) for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram illustrating an example of a hardware configuration of a graphics processing apparatus according to an embodiment of the present invention.

  1 has a hardware configuration of a CPU 101, a RAM 102, a ROM 103, an external memory 104, an input device 105, a display unit 106, a communication interface (communication I / F) 107, and a bus 108. It is configured.

  The CPU 101 controls the entire graphics processing apparatus 100 using, for example, programs and data stored in the ROM 103 or the external memory 104.

  The RAM 102 includes SDRAM, DRAM, and the like, and includes an area for temporarily storing programs and data loaded from the ROM 103 or the external memory 104 and a work area necessary for the CPU 101 to perform various processes. .

  The ROM 103 stores information such as programs that do not need to be changed and various parameters.

  The external memory 104 stores, for example, an operating system (OS), a program executed by the CPU, and information known in the description of the present embodiment.

  The input device 105 includes, for example, a mouse, a keyboard, and the like. The input device 105 is operated when a user gives various instructions to the graphics processing apparatus 100 and inputs the instructions to the CPU 101 or the like.

  The display unit 106 includes, for example, a monitor and outputs a display screen drawn by the program to the monitor based on the control of the CPU 101.

  The communication I / F 107 controls transmission / reception of various information and data performed between the graphics processing apparatus 100 and an external apparatus.

  The bus 108 connects the CPU 101, the RAM 102, the ROM 103, the external memory 104, the input device 105, the display unit 106, and the communication I / F 107 so that they can communicate with each other.

Next, a functional configuration of the graphics processing apparatus 100 will be described.
FIG. 2 is a block diagram showing an example of a functional configuration of the graphics processing apparatus according to the embodiment of the present invention. Here, in FIG. 2, the same reference numerals are given to the functional configurations similar to those in FIG. 1.

  The graphics processing apparatus 100 in FIG. 2 includes functions of a two-dimensional graphics drawing processing command receiving unit 201, a pseudo three-dimensional effect determining unit 202, a three-dimensional object drawing processing command generating unit 203, and a three-dimensional object drawing processing command executing unit 204. It has a configuration. Furthermore, the graphics processing apparatus 100 of FIG. 2 has a functional configuration of a two-dimensional graphics rendering processing instruction execution unit 205, a graphics synthesis unit 206, and a display unit (monitor) 106.

  2 includes, for example, the CPU 101 and the ROM 103 or the program stored in the external memory 104 shown in FIG. 1, the input device 105, or the communication I / F 107. 2 includes, for example, programs stored in the CPU 101 and the ROM 103 or the external memory 104 shown in FIG.

  The graphics processing apparatus 100 receives a two-dimensional graphics drawing processing instruction group and projection conditions / three-dimensional virtual space layout information as inputs, and outputs the result of the graphics processing to the display unit 106. Here, the two-dimensional graphics rendering command group and the projection condition / three-dimensional virtual space layout information are information input via the input device 105 or the communication I / F 107, for example.

  The two-dimensional graphics drawing processing command receiving unit 201 performs processing for receiving and acquiring a two-dimensional graphics drawing processing command group including a plurality of two-dimensional graphics drawing processing commands input to the graphics processing apparatus 100. .

  The pseudo three-dimensional effect determination unit 202 includes a pseudo three-dimensional effect for each two-dimensional graphics drawing processing command of the two-dimensional graphics drawing processing command group acquired by the two-dimensional graphics drawing processing command receiving unit 201. Processing to determine whether or not there is. Here, although the pseudo three-dimensional effect is expressed by two-dimensional graphics, for example, the pseudo-three-dimensional effect is expressed as a three-dimensional object using color shading. In the present embodiment, for example, any one of a bevel effect, an emboss effect, and a drop shadow effect is preferably used as the pseudo three-dimensional effect.

  The three-dimensional object drawing processing command generation unit 203 is based on the pseudo three-dimensional effect when the pseudo three-dimensional effect determination unit 202 determines that the two-dimensional graphics drawing processing command includes a pseudo three-dimensional effect. Generate a 3D object drawing processing command.

  The three-dimensional object drawing processing command execution unit 204 executes drawing that executes the three-dimensional object drawing processing command generated by the three-dimensional object drawing processing command generation unit 203 based on the input projection condition and three-dimensional virtual space layout information. Process. More specifically, the three-dimensional object drawing processing instruction execution unit 204 arranges the three-dimensional object in the three-dimensional virtual space and performs a rendering process (specifically, a three-dimensional graphics drawing process).

  The two-dimensional graphics drawing processing command execution unit 205 performs the two-dimensional graphics drawing when the pseudo three-dimensional effect determination unit 202 determines that the two-dimensional graphics drawing processing command does not include a pseudo three-dimensional effect. Performs drawing processing to execute processing instructions. Specifically, the 2D graphics rendering processing command execution unit 205 executes the 2D graphics rendering processing command based on the input projection conditions and 3D virtual space layout information, and generates, for example, a bitmap. Perform the process.

  The graphics synthesis unit 206 synthesizes the two-dimensional graphics drawing processing result by the two-dimensional graphics drawing processing command execution unit 205 and the three-dimensional object drawing processing result by the three-dimensional object drawing processing command execution unit 204 based on the projection conditions. Perform the synthesis process. For example, the graphics composition unit 206 performs composition processing by arranging a two-dimensional graphics drawing processing result and a three-dimensional object drawing processing result in a three-dimensional virtual space and projecting them on a plane based on the projection conditions. . Then, the graphics synthesis unit 206 displays and outputs the synthesis processing result on the display unit (monitor) 106.

Next, a processing procedure of a graphics processing method performed by the graphics processing apparatus 100 will be described.
FIG. 3 is a flowchart showing an example of a processing procedure of the graphics processing method by the graphics processing apparatus according to the embodiment of the present invention.

  First, in step S301, the two-dimensional graphics drawing processing command receiving unit 201 performs processing for acquiring a two-dimensional graphics drawing processing command group including a plurality of two-dimensional graphics drawing processing commands.

  Subsequently, in step S302, the pseudo three-dimensional effect determination unit 202 includes a pseudo three-dimensional effect for one two-dimensional graphics drawing processing command in the two-dimensional graphics drawing processing command group received in step S301. Judge whether or not.

  Here, the two-dimensional graphics drawing processing command including the pseudo three-dimensional effect will be described. In the present embodiment, the two-dimensional graphics drawing processing command is a vector graphics drawing processing command, and here, it is assumed that an upward bevel effect is added as a pseudo three-dimensional effect in a rectangular shape.

  FIG. 4 is a schematic diagram illustrating an example of the pseudo three-dimensional effect according to the two-dimensional graphics rendering processing command according to the embodiment of the present invention. Here, FIG. 4 shows an example of the upward bevel effect as the pseudo three-dimensional effect.

  As shown in FIG. 4A, the rectangular two-dimensional graphics drawing processing command performs contouring and painting. Further, the upward bevel effect is an effect in which highlights and shadows are added to the contour of a figure to give a three-dimensional feeling like relief, and to express like a frustum. When the drawing process is performed with the upward bevel effect added in the rectangular two-dimensional graphics drawing processing command, the drawing processing result shown in FIG. 4B is obtained.

Here, a processing method of the upward bevel effect will be described.
In FIG. 4, the rectangle ABCD is reduced to generate a rectangle EFGH (FIG. 4B) that matches the center and matches the drawing color of the rectangle ABCD. Here, the drawing color is represented by the RGB color model, and here, it is assumed that each of RGB is gray with 50% set. The reduction ratio is specified by the parameter of the upward bevel effect, and is 80% here. Moreover, four trapezoids are produced | generated by connecting AE, BF, CG, and DH shown in FIG.4 (b) with a line segment. Of the four trapezoids, the trapezoid ABFE and the trapezoid DAEH are set as highlight regions in a lighter color than the drawing color of the rectangle EFGH, and in this case, the light is set in light gray with 75% of each of RGB. Further, the trapezoid BCGF and the trapezoid CDHG are set to darker colors than the drawing color of the rectangle EFGH as shadow areas, and here, each of RGB is set to a dark gray with 25%.

  As described above, in the two-dimensional graphics processing, the upward bevel effect is realized as a pseudo three-dimensional effect for the rectangular drawing processing.

Here, it returns to description of FIG. 3 again.
As a result of the determination in step S302, if the received two-dimensional graphics rendering processing command received in step S301 includes a pseudo three-dimensional effect, the process proceeds to step S303.

  In step S303, the three-dimensional object drawing processing command generation unit 203 performs processing for generating a three-dimensional object drawing processing command. As described above, the upward bevel effect is an effect of representing the frustum with two-dimensional graphics, and here, the frustum is represented as a three-dimensional object. A method for generating a frustum as the three-dimensional object will be described below.

  FIG. 5 is a schematic diagram illustrating an example of a method for converting a pseudo three-dimensional effect related to a two-dimensional graphics rendering processing command into a three-dimensional object according to the embodiment of the present invention. Here, FIG. 5 shows an example of the upward bevel effect as the pseudo three-dimensional effect.

  First, the same rectangular ABCD as shown in FIG. 4A is arranged on the XY plane in the XYZ orthogonal three-dimensional space shown in FIG. Next, in the same manner as shown in FIG. 4B, the rectangle EFGH obtained by reducing the rectangle ABCD is placed on a plane where Z = z0 so that the X coordinate and the Y coordinate coincide with the center of the rectangle ABCD. Deploy. Here, z0 is a real number that satisfies z0> 0, and is preferably a value that is smaller than the length of each side of the rectangle ABCD. Then, by connecting the line segment AE, the line segment BF, the line segment CG, and the line segment DH, a frustum as a three-dimensional object is generated.

  FIG. 5A is a diagram in which the frustum is projected in parallel when viewed obliquely. FIG. 5B is a plan view of the same frustum viewed from the positive direction of the Z axis. FIG. 5C is a front view of the same frustum viewed from the negative direction of the Y axis. As described above, since the surfaces constituting the frustum are determined, the process of step S303 in FIG. 3 is performed by generating a three-dimensional object drawing processing command for drawing the determined surfaces.

Here, it returns to description of FIG. 3 again.
When the process of step S303 ends, the process proceeds to step S304.
In step S304, the 3D object drawing processing command execution unit 204 generates the 3D object drawing processing command generated by the 3D object drawing processing command generation unit 203 based on the input projection condition and 3D virtual space layout information. Performs drawing processing to execute processing instructions. Here, the three-dimensional virtual space arrangement information is information regarding a plane in the three-dimensional virtual space in which two-dimensional graphics are arranged, and in this embodiment, a three-dimensional affine transformation matrix is used as a mapping with the XY plane as a start area. It is expressed by

  FIG. 6 is a schematic diagram illustrating an example of a relationship between a two-dimensional graphics rendering processing instruction and three-dimensional virtual space arrangement information according to the embodiment of this invention. Specifically, FIG. 6 shows that a rectangle PQRS on the XY plane is arranged in a three-dimensional virtual space by three-dimensional affine transformation and mapped to a rectangle P′Q′R ′S ′. .

  The rectangle PQRS in FIG. 6 is at a position where P is on the Y axis, R is on the X axis, and Q is coincident with the origin O. In the example of the mapping shown in FIG. 6, the rectangle PQRS is rotated around the Y axis and translated in the positive direction of the X axis and the negative direction of the Z axis, so that P is P ′, Q is Q ′, R Is mapped to R ′ and S is mapped to S ′. The projection conditions are conditions determined by the position of the viewpoint, the projection plane, and the projection method. Here, it is assumed that the viewpoint position is a positive point on the Z axis and the projection plane is the XY plane, and the perspective projection method. Will be used.

  In step S304, the three-dimensional object drawing processing command generated in step 303 is executed based on the three-dimensional virtual space arrangement information and the projection conditions expressed as described above. Here, specifically, the three-dimensional object generated in step 303 is rotated around the Y axis according to the above-mentioned mapping, translated in the positive direction of the X axis, and moved in the negative direction of the Z axis, and arranged for drawing processing. Execute. Then, the 3D object drawing process command execution unit 204 outputs the drawing process result of the 3D object drawing process command to the graphics synthesis unit 206.

FIG. 7 is a schematic diagram showing an embodiment of the present invention and showing an example of a state in which a two-dimensional graphics drawing processing instruction including a pseudo three-dimensional effect is arranged according to three-dimensional virtual space arrangement information.
Specifically, FIG. 7A shows an example of a processing result arranged by the above-described mapping, and FIG. 7B shows an example of a result actually drawn by the projection condition.

Here, it returns to description of FIG. 3 again.
As a result of the determination in step S302, if the received two-dimensional graphics rendering processing command received in step S301 does not include a pseudo three-dimensional effect, the process proceeds to step S305.

  In step S305, the 2D graphics drawing processing command execution unit 205 generates a 2D graphics drawing processing command based on the input projection condition and 3D virtual space layout information without generating a 3D object. The drawing process is executed. Specifically, in step S305, processing for arranging and drawing two-dimensional graphics in a three-dimensional virtual space is performed. Hereinafter, a detailed processing example of step S305 will be described.

  First, the two-dimensional graphics drawing processing command execution unit 205 executes a two-dimensional graphics drawing processing command and acquires the result as two-dimensional pixel data. Next, the two-dimensional graphics drawing processing instruction execution unit 205 arranges a rectangular object at a position where the two-dimensional graphics are to be arranged in the three-dimensional virtual space. Here, the position of the rectangle is determined by the input three-dimensional virtual space arrangement information as described above. Next, the two-dimensional graphics drawing processing command execution unit 205 performs texture mapping processing for pasting the two-dimensional pixel data as a texture on the rectangular three-dimensional object. With the above processing, the two-dimensional graphics drawing processing instruction execution unit 205 completes the drawing processing of the two-dimensional graphics in the three-dimensional virtual space. Thereafter, the two-dimensional graphics drawing processing command execution unit 205 outputs the drawing processing result of the two-dimensional graphics drawing processing command to the graphics synthesis unit 206.

When the process of step S304 or S305 ends, the graphics composition unit 206 holds the drawing process result processed in step S304 or S305.
In step S306, the graphics composition unit 206 communicates with the pseudo three-dimensional effect determination unit 202 to process all the two-dimensional graphics drawing processing commands in the two-dimensional graphics drawing processing command group acquired in step S301. It is determined whether or not.

  As a result of the determination in step S306, if the processing of all the 2D graphics rendering processing commands in the 2D graphics rendering processing command group acquired in step S301 has not been completed yet, the processing returns to step S302. Then, the processing after step S302 is performed again with the unprocessed two-dimensional graphics rendering processing command as the processing target.

  On the other hand, as a result of the determination in step S306, if the processing of all the two-dimensional graphics drawing processing commands in the two-dimensional graphics drawing processing command group acquired in step S301 is completed, the process proceeds to step S307.

  In step S307, the graphics compositing unit 206 performs graphics compositing processing on the rendering processing results based on all the two-dimensional graphics rendering processing commands in the two-dimensional graphics rendering processing command group acquired in step S301.

  Subsequently, in step S <b> 308, the graphics composition unit 206 performs processing for displaying the processing result obtained by performing the graphics composition processing in step S <b> 307 on the display unit (monitor) 106. Thereafter, the processing in the flowchart shown in FIG. 3 ends.

  Next, a case where the present embodiment is applied to graphics in which two-dimensional graphics including a pseudo three-dimensional effect and two-dimensional graphics not including a pseudo three-dimensional effect are mixed will be described.

  In this case, the graphics synthesis unit 206 performs a process of synthesizing the 3D graphics rendering process result and the 2D graphics rendering process result in step S307. The combining process at this time is performed, for example, using the Z order method so that the object closer to the viewpoint becomes visible. That is, the composition processing by the graphics composition unit 206 is performed by performing hidden surface processing on a plurality of objects arranged in the three-dimensional virtual space.

  FIG. 8 shows an embodiment of the present invention, and a two-dimensional graphics drawing processing instruction including a two-dimensional graphics drawing processing instruction including a pseudo three-dimensional effect and a two-dimensional graphics drawing processing instruction not including a pseudo three-dimensional effect. It is a schematic diagram which shows an example of the drawing process result of a group. Specifically, FIG. 8 shows an example of graphics in which two-dimensional graphics including an upward bevel effect as pseudo three-dimensional effects and two-dimensional graphics not including pseudo three-dimensional effects are mixed.

  In FIG. 8A, the graphics are composed of a background 801, two-dimensional graphics 802 without a pseudo three-dimensional effect, and two-dimensional graphics 803 with an upward bevel effect. When these are arranged and drawn in the three-dimensional virtual space, the background 801 and the two-dimensional graphics 802 without the pseudo three-dimensional effect are drawn on the same plane. Also, the two-dimensional graphics 803 with the upward bevel effect are replaced with a three-dimensional graphics object. As a result, as shown in FIG. 8B, a drawing result is generated by synthesizing the background 801, the two-dimensional graphics 802 having no pseudo three-dimensional effect, and the three-dimensional graphics 804.

  Here, the upward bevel effect has been described as the pseudo three-dimensional effect, but other pseudo three-dimensional effects can also be applied. For example, the downward bevel effect may be applied. Here, the downward bevel effect is an effect of processing so that two-dimensional graphics facing each other appear to be recessed in the depth direction.

  Here, a processing example of a rectangular drawing command including a downward bevel effect when the two-dimensional graphics drawing processing command is two-dimensional vector graphics will be described.

  FIG. 9 is a schematic diagram illustrating an example of a pseudo three-dimensional effect related to a two-dimensional graphics rendering processing instruction according to the embodiment of the present invention. Specifically, FIG. An example of the bevel effect is shown.

  As shown in FIG. 9 (a), the rectangular two-dimensional graphics drawing processing command performs contouring and painting. The downward bevel effect is realized by adding highlights and shadows to the contour of the figure. When the drawing process is performed with the downward bevel effect added in the rectangular two-dimensional graphics drawing processing command, the drawing processing result shown in FIG. 9B is obtained.

Here, a processing method of the downward bevel effect will be described.
In FIG. 9, the rectangle ABCD is reduced, and a rectangle EFGH (FIG. 9B) is generated so that the centers match and the drawing color of the rectangle ABCD matches. Here, the drawing color is represented by the RGB color model, and here, it is assumed that each of RGB is gray with 50% set. The reduction ratio is specified by the parameter of the downward bevel effect, and is 80% here. Moreover, four trapezoids are produced | generated by connecting AE, BF, CG, and DH shown in FIG.9 (b) with a line segment. Of the four trapezoids, the trapezoid ABFE and the trapezoid DAEH are set to darker colors than the drawing color of the rectangle EFGH as shadow areas, and here, each of RGB is set to a dark gray with 25%. In addition, the trapezoid BCGF and the trapezoid CDHG are set to a lighter color than the drawing color of the rectangle EFGH as the highlight region, and here, the light is set to be light gray with 75% of each of RGB.

  As described above, in the two-dimensional graphics processing, the downward bevel effect is realized as a pseudo three-dimensional effect for the rectangular drawing processing.

  FIG. 10 shows an embodiment of the present invention, and a two-dimensional graphics drawing processing instruction including a two-dimensional graphics drawing processing instruction including a pseudo three-dimensional effect and a two-dimensional graphics drawing processing instruction not including a pseudo three-dimensional effect. It is a schematic diagram which shows an example of the drawing process result of a group. Specifically, FIG. 10 shows an example of graphics in which two-dimensional graphics including a downward bevel effect as pseudo three-dimensional effects and two-dimensional graphics not including pseudo three-dimensional effects are mixed.

  In FIG. 10A, the graphics are composed of a background 1001, two-dimensional graphics 1002 without a pseudo three-dimensional effect, and two-dimensional graphics 1003 with a downward bevel effect. When these are arranged and drawn in the three-dimensional virtual space, the background 1001 and the two-dimensional graphics 1002 without the pseudo three-dimensional effect are drawn on the same plane. Also, the two-dimensional graphics 1003 with the downward bevel effect is replaced with a three-dimensional graphics object. As a result, as shown in FIG. 10B, a rendering result is generated by synthesizing the background 1001, the two-dimensional graphics 1002 without pseudo three-dimensional effect, and the three-dimensional graphics 1004.

  Moreover, it is also possible to apply a drop shadow effect as a pseudo three-dimensional effect. Here, the drop shadow effect is the effect that the two-dimensional graphics appear to float up by placing the black object with the same shape on the back of the two-dimensional graphics facing each other with a slight shift up and down and left and right. That is.

  Here, the processing example of the rectangular drawing processing command including the drop shadow effect will be described in which the two-dimensional graphics drawing processing command is two-dimensional vector graphics.

  FIG. 11 is a schematic diagram illustrating an example of a pseudo three-dimensional effect related to a two-dimensional graphics rendering processing instruction according to the embodiment of the present invention. Specifically, FIG. 11 illustrates a drop shadow as a pseudo three-dimensional effect. An example of the effect is shown.

  As shown in FIG. 11 (a), the rectangular two-dimensional graphics drawing processing command performs contouring and painting. The drop shadow effect is realized by drawing and arranging a rectangle of the same size as a black shadow on the back surface. If the drawing process is performed by adding the drop shadow effect in the rectangular two-dimensional graphics drawing processing command, the drawing processing result shown in FIG. 11B is obtained.

Here, a processing method of the drop shadow effect will be described.
In FIG. 11, when the two-dimensional graphics drawing processing command for drawing the rectangle ABCD includes the drop shadow effect, first, the black figure having the same shape as the rectangle ABCD is drawn while being shifted in the XY axis direction. This is the shadow. Here, the magnitude of the deviation of the XY axes is arbitrary, but is preferably a value smaller than the size of the figure to be drawn. Then, a drawing process of a rectangle to be originally drawn is performed thereon. As for the black shadow, if the outline is clear, an effect of hitting a strong light beam is obtained, and if the outline is blurred, an effect including weak light and ambient light is obtained.

  As described above, in the two-dimensional graphics processing, the drop shadow effect is realized as a pseudo three-dimensional effect for the rectangular drawing processing.

  FIG. 12 shows an embodiment of the present invention, and a two-dimensional graphics drawing processing instruction including a two-dimensional graphics drawing processing instruction including a pseudo three-dimensional effect and a two-dimensional graphics drawing processing instruction not including a pseudo three-dimensional effect. It is a schematic diagram which shows an example of the drawing process result of a group. Specifically, FIG. 12 shows an example of graphics in which two-dimensional graphics including a drop shadow effect as a pseudo three-dimensional effect and two-dimensional graphics not including a pseudo three-dimensional effect are mixed.

  In FIG. 12A, the graphics are composed of a background 1201, two-dimensional graphics 1202 without a pseudo three-dimensional effect, and two-dimensional graphics 1203 with a drop shadow effect. When these are arranged and drawn in the three-dimensional virtual space, the background 1201 and the two-dimensional graphics 1202 without the pseudo three-dimensional effect are drawn on the same plane. In addition, the two-dimensional graphics 1203 with the drop shadow effect are arranged on a plane parallel to the plane on which the background 1201 and the two-dimensional graphics 1202 without the pseudo three-dimensional effect are drawn.

  FIG. 13 is a schematic diagram illustrating an example of a processing method of a two-dimensional graphics drawing processing command including the drop shadow effect according to the embodiment of this invention. Specifically, FIG. 13 is a diagram illustrating a method of arranging the background 1201, the two-dimensional graphics 1202 without a pseudo three-dimensional effect, and the two-dimensional graphics 1203 with a drop shadow effect shown in FIG. 12 in a three-dimensional virtual space. It is the figure seen from the direction.

  Two-dimensional graphics without pseudo three-dimensional effects (for example, 1201 and 1202 in FIG. 12) are drawn on the surface Q in FIG. This plane Q coincides with the projection plane, and here also coincides with the XY plane. Further, in the two-dimensional graphics 1203 with the drop shadow effect, the rectangular drawing processing command is drawn as the floating rectangle 1205 in FIG. 13B on the surface P in FIG. 13, and the drawing processing of the shadow 1204 is performed in the surface Q. To be done. Here, the plane P is a plane parallel to the plane Q and translated (−d) in the Z-axis direction. Further, d is an arbitrary real number larger than 0, and is preferably a small value as compared with two-dimensional graphics.

  The drawing process of the floating rectangle 1205 in FIG. 12B is performed by (−d) parallel movement in the Z-axis direction. Next, according to the input three-dimensional virtual space arrangement information, the surface P and the surface Q are converted and moved to the positions of the surface P ′ and the surface Q ′, respectively. Therefore, the background 1201, the two-dimensional graphics 1202 without pseudo three-dimensional effect, and the shadow 1204 move to the plane Q ′, and the raised rectangle 1205 moves to the plane P ′. When the result is projected, the output result shown in FIG. 12B is obtained.

  In this embodiment, an example of a two-dimensional vector graphics drawing processing command is shown as the two-dimensional graphics drawing processing command received and input by the two-dimensional graphics drawing processing command receiving unit 201. However, in the present invention, However, the present invention is not limited to this. For example, a two-dimensional graphics drawing processing command that is expressed in a structured document can be applied. In addition, for example, an XML (extensible Markup Language) or a user interface description language can be applied as the two-dimensional graphics rendering processing command. Further, for example, as the two-dimensional graphics drawing processing command, one represented by SVG (Scalable Vector Graphics) which is a description language for describing two-dimensional vector graphics can be applied. Further, for example, the image format itself in which image data and a processing method for the image data are described as the two-dimensional graphics drawing processing command may be used. Further, for example, the two-dimensional graphics drawing processing command may be image data obtained by combining raster image data and a pseudo three-dimensional effect on the raster image data. At this time, the format of the raster image data is not particularly limited here. Further, the pseudo three-dimensional effect may be extracted from the raster image data and used.

  The graphics composition unit 206 executes a perspective transformation of the bitmap generated by the two-dimensional graphics drawing processing command execution unit 205 and the three-dimensional object drawing processing command execution unit 204 executes the three-dimensional object drawing processing command. Then, the composite processing may be performed by superimposing the result projected onto the plane.

  In the above-described example, the bevel effect and the drop shadow effect have been described using the drawings as the pseudo three-dimensional effect. However, for example, an emboss effect can also be used.

  As described above, according to the graphics processing device of the present embodiment, the recognition when displaying an object based on the pseudo three-dimensional effect expressed in two-dimensional graphics and the display thereof are matched with each other. It is possible to draw without causing the user to misunderstand. Further, if applied to the user interface in the window, the user can accurately recognize the state of the user interface even when the window is arranged in the three-dimensional virtual space.

(Other embodiments of the present invention)
2 composing the graphics processing apparatus according to the embodiment of the present invention described above is a program stored in a storage medium (ROM 103 or external memory 104) by a CPU (101) of a computer. It can be realized by executing. Similarly, each step of FIG. 3 showing the above-described graphics processing method can be realized by the CPU (101) of the computer executing a program stored in a storage medium (ROM 103 or external memory 104). This program and a computer-readable recording medium storing the program are included in the present invention.

  In addition, the present invention can be implemented as, for example, a system, apparatus, method, program, storage medium, or the like. Specifically, the present invention may be applied to a system including a plurality of devices. You may apply to the apparatus which consists of one apparatus.

  The present invention includes a software program (in the embodiment, a program corresponding to the flowchart shown in FIG. 3) that directly or remotely supplies a software program that implements the functions of the above-described embodiments. The present invention also includes a case where the system or the computer of the apparatus is achieved by reading and executing the supplied program code.

  Accordingly, since the functions of the present invention are implemented by computer, the program code installed in the computer also implements the present invention. In other words, the present invention includes a computer program itself for realizing the functional processing of the present invention.

  In that case, as long as it has the function of a program, it may be in the form of object code, a program executed by an interpreter, script data supplied to the OS, and the like.

  Examples of the recording medium for supplying the program include a flexible disk, hard disk, optical disk, magneto-optical disk, MO, CD-ROM, CD-R, and CD-RW. In addition, there are magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD-R), and the like.

  As another program supply method, a browser on a client computer is used to connect to an Internet home page. The computer program itself of the present invention or a compressed file including an automatic installation function can be downloaded from the homepage by downloading it to a recording medium such as a hard disk.

  It can also be realized by dividing the program code constituting the program of the present invention into a plurality of files and downloading each file from a different homepage. That is, the present invention includes a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer.

  In addition, the program of the present invention is encrypted, stored in a storage medium such as a CD-ROM, distributed to users, and key information for decryption is downloaded from a homepage via the Internet to users who have cleared predetermined conditions. Let The downloaded key information can be used to execute the encrypted program and install it on the computer.

  Further, the functions of the above-described embodiments are realized by the computer executing the read program. In addition, based on the instructions of the program, an OS or the like running on the computer performs part or all of the actual processing, and the functions of the above-described embodiments can also be realized by the processing.

  Further, the program read from the recording medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. Thereafter, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instructions of the program, and the functions of the above-described embodiments are realized by the processing.

  The above-described embodiments are merely examples of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed as being limited thereto. That is, the present invention can be implemented in various forms without departing from the technical idea or the main features thereof.

DESCRIPTION OF SYMBOLS 100 Graphics processing apparatus, 106 Display part (monitor), 201 Two-dimensional graphics drawing process command receiving part, 202 Pseudo three-dimensional effect discrimination part, 203 Three-dimensional object drawing process command generation part, 204 Three-dimensional object drawing process command execution 205, 2D graphics rendering command execution unit, 206 Graphics synthesis unit

Claims (15)

A graphics processing apparatus that performs processing of a two-dimensional graphics rendering processing instruction,
Receiving means for receiving the two-dimensional graphics drawing processing command;
Determining means for determining whether or not the two-dimensional graphics rendering processing command received by the receiving means includes a pseudo three-dimensional effect that pseudo-represents a three-dimensional object;
Generating means for generating a three-dimensional object drawing processing instruction based on the pseudo three-dimensional effect when the determining means determines that the pseudo three-dimensional effect is included in the two-dimensional graphics drawing processing instruction;
Three-dimensional object drawing processing instruction execution means for executing the three-dimensional object drawing processing instruction generated by the generating means, and placing the three-dimensional object in a three-dimensional virtual space to perform rendering processing. Graphics processing unit.   The graphics processing apparatus according to claim 1, wherein the three-dimensional object drawing processing command execution unit performs the rendering processing based on the input projection condition and three-dimensional virtual space arrangement information. The receiving means receives a group of two-dimensional graphics drawing processing commands composed of a plurality of the two-dimensional graphics drawing processing commands.
The determining means determines whether or not the pseudo three-dimensional effect is included in each two-dimensional graphics drawing processing command of the two-dimensional graphics drawing processing command group received by the receiving means,
A two-dimensional graphics drawing processing command execution unit for executing the two-dimensional graphics drawing processing command when the determining unit determines that the pseudo-three-dimensional effect is not included in the two-dimensional graphics drawing processing command; ,
And further comprising a combining means for performing a combining process for combining the three-dimensional object drawing processing result by the three-dimensional object drawing processing instruction executing means and the two-dimensional graphics drawing processing result by the two-dimensional graphics drawing processing instruction executing means. The graphics processing apparatus according to claim 1 or 2, wherein   4. The graphics processing apparatus according to claim 3, wherein the two-dimensional graphics drawing processing command execution means executes the two-dimensional graphics drawing processing command to generate a bitmap.   The synthesizing unit is configured to combine a 3D object drawing process result by the 3D object drawing process command executing unit and a 2D graphics drawing process result by the 2D graphics drawing process command executing unit in a 3D virtual space. The graphics processing apparatus according to claim 3, wherein the composition processing is performed by arranging and projecting on a plane.   The graphics processing apparatus according to claim 5, wherein the synthesizing unit performs the synthesizing process by performing a hidden surface process on a plurality of objects arranged in the three-dimensional virtual space.   The synthesizing unit includes a perspective transformation of the bitmap generated by the two-dimensional graphics drawing processing command execution unit, and a plane obtained by executing the three-dimensional object drawing processing command by the three-dimensional object drawing processing command execution unit. The graphics processing apparatus according to claim 4, wherein the composition processing is performed by superimposing the result projected onto the screen.   The graphics processing apparatus according to claim 1, wherein the pseudo three-dimensional effect is one of a bevel effect, an emboss effect, and a drop shadow effect.   The graphics processing apparatus according to claim 1, wherein the two-dimensional graphics rendering processing instruction is expressed by a structured document.   The graphics processing apparatus according to claim 1, wherein the two-dimensional graphics rendering processing command is expressed in XML.   The graphics processing apparatus according to claim 1, wherein the two-dimensional graphics rendering processing command is expressed in SVG.   9. The graphics processing apparatus according to claim 1, wherein the two-dimensional graphics rendering processing instruction is expressed in a user interface description language.   The graphics processing apparatus according to claim 1, wherein the two-dimensional graphics rendering processing command is an image format itself in which image data and a processing method for the image data are described. A graphics processing method by a graphics processing device for processing a two-dimensional graphics rendering processing instruction,
A receiving step for receiving the two-dimensional graphics drawing processing command;
A determination step of determining whether or not the two-dimensional graphics rendering processing command received in the reception step includes a pseudo three-dimensional effect that pseudo-represents a three-dimensional object;
A generation step of generating a three-dimensional object drawing processing command based on the pseudo three-dimensional effect when it is determined that the pseudo three-dimensional effect is included in the two-dimensional graphics drawing processing command in the determining step;
A three-dimensional object drawing processing command execution step for executing the three-dimensional object drawing processing command generated in the generating step and placing the three-dimensional object in a three-dimensional virtual space to perform a rendering process. Graphics processing method. A program for causing a computer to execute a graphics processing method by a graphics processing apparatus that performs processing of a two-dimensional graphics rendering processing instruction,
A receiving step for receiving the two-dimensional graphics drawing processing command;
A determination step of determining whether or not the two-dimensional graphics rendering processing command received in the reception step includes a pseudo three-dimensional effect that pseudo-represents a three-dimensional object;
A generation step of generating a three-dimensional object drawing processing command based on the pseudo three-dimensional effect when it is determined that the pseudo three-dimensional effect is included in the two-dimensional graphics drawing processing command in the determining step;
Executing the 3D object drawing processing command generated in the generating step, causing the computer to execute a 3D object drawing processing command executing step of performing rendering processing by placing the 3D object in the 3D virtual space program.

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