CN112040596B - Virtual space light control method, computer readable storage medium and system - Google Patents
Virtual space light control method, computer readable storage medium and system Download PDFInfo
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- CN112040596B CN112040596B CN202010834272.7A CN202010834272A CN112040596B CN 112040596 B CN112040596 B CN 112040596B CN 202010834272 A CN202010834272 A CN 202010834272A CN 112040596 B CN112040596 B CN 112040596B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
- H05B45/12—Controlling the intensity of the light using optical feedback
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention relates to a virtual space light control method, which comprises the following steps: the method includes the steps that S1, a virtual three-dimensional scene space is established based on a real scene, and a plurality of trigger points are set in the virtual three-dimensional scene space; s2, setting at least one lighting device for each trigger point, and setting respective original light parameters and trigger light parameters for each lighting device; s3, tracking real-time coordinates of a target in a real scene and converting the real-time coordinates into space coordinates in the virtual three-dimensional scene space; and S4, triggering the trigger point based on the space coordinate, and controlling the lighting change of the lighting equipment of the trigger point based on the trigger lighting parameter. The invention also relates to a computer readable storage medium and a virtual space light control system. The invention can improve the lighting efficiency in the screen-clipping scene of the modern film and television, reduce the cost, reduce human errors and realize more real film and television shooting effect.
Description
Technical Field
The invention relates to the field of movie and television special effect measurement, in particular to a virtual space light control method and system.
Background
In the process of shooting modern films and televisions, especially in the background of a green (blue) screen matting technology, people do not need to shoot in a real scene. And synthesizing at the later stage. Under the screen matting technology, in order to ensure the reality and the reasonability of the final scene synthesis, the light control is very important. The traditional film and television light regulation is generally regulated and controlled by a professional film and television light operator. According to different levels of lamplight operators, errors are easy to occur, adjustment is difficult, the shooting effect is uneven, and therefore a plurality of so-called five-feather special effects appear.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and a system for controlling virtual space lighting, which can improve lighting efficiency, reduce cost, and reduce human errors, in view of the above-mentioned defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a virtual space light control method is constructed, and comprises the following steps:
the method includes the steps that S1, a virtual three-dimensional scene space is established based on a real scene, and a plurality of trigger points are set in the virtual three-dimensional scene space;
s2, setting at least one lighting device for each trigger point, and setting respective original light parameters and trigger light parameters for each lighting device;
s3, tracking real-time coordinates of targets in a real scene and converting the real-time coordinates into space coordinates in the virtual three-dimensional scene space;
and S4, triggering the trigger point based on the space coordinate, and controlling the lighting change of the lighting equipment of the trigger point based on the lighting triggering parameter.
In the virtual space lighting control method according to the present invention, the step S1 further includes:
s11, establishing a virtual three-dimensional scene space based on a real scene by using three-dimensional software;
s12, determining an origin of the three-dimensional scene space;
and S13, selecting a plurality of different position points in the three-dimensional scene space as trigger points.
In the virtual space light control method of the present invention, in step S11, a rigid change matrix is used to establish the virtual three-dimensional scene space based on the real scene according to a ratio of 1.
In the virtual space lighting control method according to the present invention, the step S2 further includes:
s21, setting at least one lighting device for each trigger point;
s22, setting original light parameters of the corresponding lighting equipment at the position of the virtual three-dimensional scene space based on each trigger point;
s23, setting the trigger light parameters of the lighting equipment corresponding to each trigger point based on the following formula;
wherein x represents the original light parameter, a represents the multiple, b represents the trim factor, and d represents the trigger radius.
In the virtual space lighting control method according to the present invention, the step S2 further includes:
s21, setting a plurality of lighting devices for each trigger point;
s22, setting original light parameters of each corresponding lighting device at the position of the virtual three-dimensional scene space based on each trigger point;
s23, setting the triggering light parameters of each lighting device corresponding to each triggering point based on the following formula;
wherein x denotes the original light parameter, a denotes a multiple, b denotes a trim factor, and d denotes a trigger radius, wherein the trim factor is calculated based on the respective chromaticity of each luminaire.
In the virtual space lighting control method according to the present invention, the step S4 further includes:
s41, judging whether the distance between the space coordinate and any one of the trigger points is within the trigger radius of the trigger point, if so, executing the step S42, otherwise, not carrying out any light adjustment;
s42, sending all trigger light parameters of the lighting equipment corresponding to the trigger points to a light controller;
s43, the light controller adjusts the light of the lighting device corresponding to the trigger point based on the trigger light parameter.
In the virtual space light control method of the present invention, the original light parameter and the trigger light parameter are luminance parameters.
Another technical solution to solve the technical problem of the present invention is to configure a computer-readable storage medium on which a computer program is stored, the program, when executed by a processor, implementing the virtual space light control method.
Another technical solution adopted to solve the technical problems of the present invention is to construct a virtual space lighting control system, including:
a virtual three-dimensional scene space established based on a real scene;
a plurality of trigger points disposed in the virtual three-dimensional scene space;
at least one lighting device set for each trigger point, wherein a respective original light parameter and trigger light parameter are set for each lighting device;
the tracking module is used for tracking the real-time coordinates of a target in a real scene and converting the real-time coordinates into space coordinates in the virtual three-dimensional scene space;
and the light control module is used for triggering the trigger point based on the space coordinate and controlling the light change of the lighting device of the trigger point based on the trigger light parameter.
In the virtual space lighting control system, at least one lighting device is arranged aiming at each trigger point; setting original light parameters of a corresponding lighting device based on the position of each trigger point in the virtual three-dimensional scene space; setting the triggering light parameters of the lighting device corresponding to each triggering point based on the following formula;
wherein x represents the original lighting parameter, a represents a multiple, b represents a fine tuning coefficient, and d represents a trigger radius;
the light control module further includes: the judging unit is used for judging whether the distance between the space coordinate and any one of the trigger points is within the trigger radius of the trigger point, and if so, all trigger light parameters of the lighting device corresponding to the trigger point are sent to the light controller;
and the light controller adjusts the light of the lighting device corresponding to the trigger point based on the trigger light parameter.
By implementing the virtual space light control method, the computer readable storage medium and the system, the trigger point in the virtual three-dimensional scene space is triggered by tracking the real-time coordinates of the target in the real scene, so that light adjustment is performed, the light efficiency under the screen-clipping scene of the modern movie and television can be improved, the cost is reduced, human errors are reduced, and a more real movie and television shooting effect can be realized.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a flowchart of a first preferred embodiment of the virtual space lighting control method of the present invention;
FIG. 2 is a schematic configuration of a first preferred embodiment of the virtual space lighting control system of the present invention;
fig. 3A-3C are schematic diagrams of the virtual space light control method and system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Fig. 1 is a flowchart of a first preferred embodiment of the virtual space lighting control method of the present invention. As shown in fig. 1, in step S1, a virtual three-dimensional scene space is established based on a real scene, and a plurality of trigger points are set in the virtual three-dimensional scene space. In a preferred embodiment of the present invention, a virtual three-dimensional scene space can be established based on a real scene using three-dimensional software, such as a 3D game engine, 3D design industry software to construct the virtual three-dimensional scene space. Preferably, the virtual three-dimensional scene space is determined from the real scene 1:1, and performing coordinate transformation between the real scene and the real scene by using a rigid transformation matrix representation transformation. Because the device is 1:1, the 3-dimensional space created. There is only a rotational-translational relationship between the two matrices and no scaling. This scaling process is done automatically by the engine.
Subsequently, an origin of the three-dimensional scene space may be determined; and selecting a plurality of different location points in said three dimensional scene space as trigger points. Here, any suitable location point in the three-dimensional scene space may be selected as a trigger point by those skilled in the art at will. It should be noted that the trigger points need to be spaced apart from each other by a small distance greater than the trigger radius, so as to avoid the situation where the same coordinate position is located within the trigger radius of two trigger points in a subsequent operation. And e, building the three-dimensional scene space according to the real scene of 2 x 3 m. The trigger radius can therefore generally be chosen to be 50cm. Of course, the trigger point and the trigger radius can be selected by those skilled in the art according to actual conditions.
In step S2, at least one lighting device is set for each trigger point, and respective original light parameters and trigger light parameters are set for each lighting device. Typically, different original light parameters are set for different trigger points of the lighting device. Generally, the brighter the virtual three-dimensional scene space is, the larger the original lighting parameters will be set, and vice versa. In a preferred embodiment of the invention, one lighting device is set for each trigger point, and the original lighting parameters of its corresponding lighting device are set based on the position of each trigger point in the virtual three-dimensional scene space. The principle that the brighter the location, the larger the original light parameter, and the darker the location, the smaller the original light parameter is also followed here. Then setting the triggering light parameters of the lighting equipment corresponding to each triggering point based on the following formula;
wherein x represents the original lighting parameter, a represents the multiple, b represents the trim factor, and d represents the trigger radius. In this case, the skilled person can select the values of x, a, b and d according to the actual situation. As mentioned above, the brighter the trigger point is located at the position in the virtual three-dimensional scene space, the larger the original lighting parameter x is, the darker the position is, the smaller the original lighting parameter x is, and the specific value may be determined according to the actual value in the real scene, for example, by measuring the brightness of the corresponding position in the real scene. The value of the multiple a is also set according to the value of the ambient brightness in the real scene, the range of the multiple a is usually 1-5, and the multiple a can be generally divided into a plurality of grades. The fine tuning coefficient b is typically obtained from the chromaticity of the luminaire itself. As mentioned above, the trigger radius d may be set according to actual requirements, as long as it can satisfy that the coordinates in any space are not located within two trigger radii.
In a further preferred embodiment of the invention, a plurality of lighting devices may be provided for each trigger point. And sets respective original light parameters and trigger light parameters for each lighting device. For each lighting device, the original light parameters and the trigger light parameters are set as described above. Here, the chromaticity of the illumination apparatus is different due to the difference, and thus the obtained fine adjustment coefficient is different. This allows a very similar but slightly different luminance to be constructed in close proximity to the real scene. In this preferred embodiment, the original light parameter and the trigger light parameter are brightness parameters. Of course, in other preferred embodiments of the present invention, other parameters, such as chromaticity, color temperature, etc., may be used to implement the present invention.
In step S3, real-time coordinates of targets in a real scene are tracked and converted into spatial coordinates in the virtual three-dimensional scene space. In a preferred embodiment of the invention, the target may be a person or a moving object. The real-time coordinates of the human or moving object can be tracked by tying the locator and tracker to the human or moving object. For example, a locator and tracker of HTC vive may be employed, which employs bluetooth communication and uses streamVR integrated drivers. The user can obtain the three-dimensional coordinates and the three-dimensional rotation angle of the tracker in the real space by calling the interface provided by the streamVR. The locator uses a positioning system (Lighthouse) composed of two base stations. Each base station is provided with an infrared LED array and two rotating infrared laser transmitters with rotating shafts perpendicular to each other. The rotation speed is one turn for 10 ms. The operating state of the base station is such that: 20ms is a cycle, when the cycle starts, the infrared LED flashes, the rotating laser of the X axis sweeps the whole space within 10ms, and the Y axis does not emit light; the rotating laser in the Y-axis sweeps the entire space for the next 10ms, and the X-axis does not emit light. The base station of the positioning system is provided with a plurality of photosensitive sensors on the head display and the controller. After the LED of the base station flashes, signals are synchronized, and then the photosensitive sensor can measure the time when the X-axis laser and the Y-axis laser respectively reach the sensor. This time is exactly the time at which the X-axis and Y-axis lasers go to this particular angle, illuminating the sensor, and the X-axis and Y-axis angles of the sensor relative to the base station are known. The positions of the light-sensitive sensors distributed over the head display and the controller are also known, so that the position and the movement trajectory of the head display can be calculated from the position differences of the individual sensors. And then converting the real-time coordinates into space coordinates in the virtual three-dimensional scene space. For another example, a motion sensing device (kinect) may be used instead of generating spatial coordinates of a human or moving object.
In step S4, based on the triggering of the trigger point by the spatial coordinates, the lighting change of the lighting device of the trigger point is controlled based on the trigger lighting parameter. Firstly, as the target moves, the spatial coordinates of the target change, and when the distance between the spatial coordinates and any one of the trigger points is within the trigger radius of the trigger point, all trigger light parameters of the lighting device corresponding to the trigger point are sent to the light controller. And then the light controller adjusts the light of the lighting device corresponding to the trigger point based on the trigger light parameter. For example, assume that a trigger point in the virtual three-dimensional scene space is a, its coordinate is [ x1, y1, z1], and its trigger radius is d. Which corresponds to a group of lighting devices (i.e. n lighting devices) numbered light _ id, the trigger light parameter of the group of lighting devices is param1, param1 3. The real-time coordinates of the target b in the real scene are [ x2, y2, z2], after the target b is rotationally translated, the distance between the space coordinate b' and the coordinate a of the target b in the virtual three-dimensional scene space is found to be smaller than the trigger radius d, the application program interface is triggered, and the serial number of the group of lighting devices and the trigger light parameters are sent to the light controller in the form of a UDP (user Datagram protocol) data packet. And the light controller adjusts the light of the lighting device corresponding to the trigger point based on the trigger light parameter. The light controller can be an independent program edited by C + +, and the light controller can be used for sending a command packet to the lighting device through the USB interface and the DMX512 protocol so as to control the light brightness change of the light controller. The lighting device can be an LED lamp which is actually arranged, and can also be an LCD screen which is virtually arranged, and the brightness of the screen of the controller is changed through software adjustment.
By implementing the virtual space light control method, the trigger point in the virtual three-dimensional scene space is triggered by tracking the real-time coordinates of the target in the real scene, so that light adjustment is performed, the light efficiency under the screen-covering scene of the modern movie and television can be improved, the cost is reduced, human errors are reduced, and a more real movie and television shooting effect can be realized.
The invention further relates to constructing a computer-readable storage medium on which a computer program is stored which, when being executed by a processor, implements the virtual space lighting control method. For example, the computer program comprises all the features enabling the implementation of the methods of the invention when installed in a computer system. The computer program in this document refers to: any expression, in any programming language, code or notation, of a set of instructions intended to cause a system having an information processing capability to perform a particular function either directly or after either or both of the following: a) Conversion to other languages, codes or symbols; b) Reproduced in a different format.
Fig. 2 is a schematic structural diagram of a first preferred embodiment of the virtual space lighting control system of the present invention. As shown in fig. 2, the virtual space lighting control system includes a virtual three-dimensional scene space 100 established based on a real scene; a plurality of trigger points 110, 120, 130 are provided in said virtual three-dimensional scene space 100. At least one lighting device 210, 220, 230, tracking module 300 and light control module 400 provided for each trigger point 110, 120, 130. Each lighting device 210, 220, 230 sets respective original and trigger light parameters. The tracking module 300 is used to track real-time coordinates of targets in a real scene and convert the real-time coordinates into spatial coordinates in the virtual three-dimensional scene space 100. The light control module 400 is configured to control a light change of the lighting apparatus of the trigger point based on the trigger of the spatial coordinates to the trigger point and based on the trigger light parameter.
In a preferred embodiment of the invention, one lighting device may be provided for each trigger point, or a plurality of lighting devices may be provided. Setting original light parameters of a corresponding lighting device based on the position of each trigger point in the virtual three-dimensional scene space; setting the triggering light parameters of the lighting device corresponding to each triggering point based on the following formula;
wherein x represents the original light parameter, a represents the multiple, b represents the trim factor, and d represents the trigger radius.
The light control module 400 further includes: a judging unit and a light controller. The determining unit is configured to determine whether a distance between the spatial coordinate and any one of the trigger points is within a trigger radius of the trigger point, and if so, send all trigger light parameters of the lighting device corresponding to the trigger point to the light controller 300. And the light controller 300 adjusts the light of the lighting device corresponding to the trigger point based on the trigger light parameter.
It will be appreciated by those skilled in the art that the virtual three-dimensional scene space 100, the plurality of trigger points 110, 120, 130, the lighting devices 210, 220, 230, the tracking module 300 and the light control module 400 described above may be configured with reference to the embodiment shown in fig. 1. Here, the present invention can be realized by hardware, software, or a combination of hardware and software. The present invention can be realized in a centralized fashion in at least one computer system, or in a distributed fashion where different elements are spread across several interconnected computer systems. Any kind of computer system or other apparatus adapted for carrying out the methods of the present invention is suited. A typical combination of hardware and software could be a general purpose computer system with a computer program that, when being loaded and executed, controls the computer system such that it carries out the methods described herein.
Fig. 3A-3C are schematic diagrams of the virtual space lighting control system of the present invention. As shown in fig. 3A, in a real environment, a real object is divided into a bright part and a dark part according to the direction of the real object because the sun is located at different positions. Therefore, when the real world is simulated, a real scene is built in the studio, and the real world is simulated through a switch for simulating light. When a person or other object moves to a different location, whether in the real world or in a real scene, the light changes. Therefore, in the virtual three-dimensional scene space, this change needs to be taken into account as well. Therefore, by adopting the virtual space light control method and the virtual space light control system, the trigger point in the virtual three-dimensional scene space can be triggered by tracking the real-time coordinate of the target in the real scene, so that light adjustment is performed, the light efficiency under the screen-clipping scene of the modern movie and television can be improved, the cost is reduced, the human error is reduced, and the more real movie and television shooting effect can be realized.
Accordingly, the present invention can be realized in hardware, software, or a combination of hardware and software. The present invention can be realized in a centralized fashion in at least one computer system, or in a distributed fashion where different elements are spread across several interconnected computer systems. Any kind of computer system or other apparatus adapted for carrying out the methods of the present invention is suited. A typical combination of hardware and software could be a general purpose computer system with a computer program that, when being loaded and executed, controls the computer system such that it carries out the methods described herein.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (8)
1. A virtual space light control method is characterized by comprising the following steps:
s1, establishing a virtual three-dimensional scene space based on a real scene, and setting a plurality of trigger points in the virtual three-dimensional scene space;
s2, setting at least one lighting device for each trigger point, and setting respective original light parameters and trigger light parameters for each lighting device;
s3, tracking real-time coordinates of a target in a real scene and converting the real-time coordinates into space coordinates in the virtual three-dimensional scene space;
s4, triggering the trigger point based on the space coordinate, and controlling the lighting change of the lighting equipment of the trigger point based on the trigger lighting parameter;
the step S4 further includes:
s41, judging whether the distance between the space coordinate and any one of the trigger points is within the trigger radius of the trigger point, if so, executing the step S42, otherwise, not carrying out any light adjustment;
s42, sending all trigger light parameters of the lighting equipment corresponding to the trigger points to a light controller;
s43, the light controller adjusts the light of the lighting device corresponding to the trigger point based on the trigger light parameter;
the original light parameter and the trigger light parameter are brightness parameters.
2. The virtual space lighting control method according to claim 1, wherein the step S1 further comprises:
s11, establishing a virtual three-dimensional scene space based on a real scene by using three-dimensional software;
s12, determining an origin of the three-dimensional scene space;
and S13, selecting a plurality of different position points in the three-dimensional scene space as trigger points.
3. The virtual space light control method according to claim 2, wherein in step S11, the virtual three-dimensional scene space is established based on the real scene by using a rigid change matrix according to a ratio of 1.
4. The virtual space lighting control method according to claim 2, wherein the step S2 further comprises:
s21, setting at least one lighting device for each trigger point;
s22, setting original light parameters of the corresponding lighting equipment at the position of each trigger point in the virtual three-dimensional scene space;
s23, setting the triggering light parameters of the lighting equipment corresponding to each triggering point based on the following formula;
wherein x represents the original lighting parameter, a represents the multiple, b represents the trim factor, and d represents the trigger radius.
5. The virtual space lighting control method according to claim 4, wherein the step S2 further comprises:
s21, setting a plurality of lighting devices for each trigger point;
s22, setting original light parameters of each corresponding lighting device based on the position of each trigger point in the virtual three-dimensional scene space;
s23, setting the trigger light parameters of each lighting device corresponding to each trigger point based on the following formula;
wherein x denotes the original light parameter, a denotes a multiple, b denotes a trim factor, and d denotes a trigger radius, wherein the trim factor is calculated based on the respective chromaticity of each luminaire.
6. A computer-readable storage medium on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out a virtual space light control method according to any one of claims 1 to 5.
7. A virtual space lighting control system, comprising:
a virtual three-dimensional scene space established based on a real scene;
a plurality of trigger points arranged in the virtual three-dimensional scene space;
at least one lighting device set for each trigger point, wherein a respective original light parameter and trigger light parameter are set for each lighting device;
the tracking module is used for tracking the real-time coordinates of a target in a real scene and converting the real-time coordinates into space coordinates in the virtual three-dimensional scene space;
the light control module is used for triggering the trigger point based on the space coordinate and controlling the light change of the lighting device of the trigger point based on the trigger light parameter;
the light control module further includes: a determination unit and a light controller; the judging unit is used for judging whether the distance between the space coordinate and any one of the trigger points is within the trigger radius of the trigger point, and if so, sending all trigger light parameters of the lighting device corresponding to the trigger point to the light controller;
the light controller adjusts the light of the lighting device corresponding to the trigger point based on the trigger light parameter; the original light parameter and the trigger light parameter are brightness parameters.
8. The virtual space lighting control system of claim 7 wherein at least one lighting device is provided for each trigger point; setting original light parameters of a corresponding lighting device based on the position of each trigger point in the virtual three-dimensional scene space; setting the triggering light parameters of the lighting device corresponding to each triggering point based on the following formula;
wherein x represents the original light parameter, a represents the multiple, b represents the trim factor, and d represents the trigger radius.
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