11 results about "Shadow mapping" patented technology

This disclosure provides a method, apparatus, computer device, and storage medium for generating textures. The method includes: acquiring a three-dimensional model of a target object, an original shadow texture corresponding to the three-dimensional model, and a shadow tendency texture; performing a correction process on the original shadow texture based on the lighting direction corresponding to the three-dimensional model to obtain a target shadow texture corresponding to the three-dimensional model; and performing a light and shadow mapping process on the target shadow texture using the shadow tendency texture to obtain a shadow color texture corresponding to the three-dimensional model.

The invention relates to the technical field of video fusion, and discloses a video fusion method and system based on a shadow map and a program product, and the method comprises the following steps: creating a virtual perspective camera in a three-dimensional scene, and generating the shadow map according to a visual cone of the virtual perspective camera; pixels in the three-dimensional scene are converted from a visual space coordinate system of a physical world camera to a virtual perspective camera coordinate system, NDC coordinates of the pixels are obtained, the NDC coordinates are aligned with texture coordinates of the shadow map, and sampling texture coordinates are obtained; judging whether the pixels in the visual range of the virtual perspective camera are in the visual area of the shadow map or not, and obtaining the color of the current pixel of the three-dimensional scene; and obtaining the color of the current pixel of the fused three-dimensional scene. According to the invention, the problems of shielding area processing errors and the like in the prior art are solved.

The application provides an LCD debugging method, device and equipment. The method isolates the asynchronous parameter update of the device tree plug-in and the synchronous display clock domain of the physical register by establishing a shadow register mapping area in the Linux kernel, and limits the writing path of the physical register. Without triggering the power switching or the driving re-measurement, the shadow mapping area parameters are synchronized to the physical register by listening to the V-Sync signal and using the atomic transmission instruction in the vertical blanking period, so that the incremental debugging parameters are re-locked as a whole in the display frame scanning gap. The application effectively avoids the display timing conflict caused by the partial effect of the parameters, realizes the non-sensing and real-time effect of the LCD parameters in the state of maintaining the display activation, and significantly improves the debugging efficiency and system stability.

The disclosure provides a shadow map generation method and device, computer equipment and a storage medium, and the method comprises the following steps: obtaining a three-dimensional model of a target object and an original shadow map corresponding to the three-dimensional model; determining a light model corresponding to the three-dimensional model based on the three-dimensional model and a light direction corresponding to the three-dimensional model; the light model is used to represent the shadow degree information corresponding to each vertex of the three-dimensional model; and performing a light direction correction process on the original shadow map by using the light model to obtain a first target shadow map of the three-dimensional model.

The application discloses an information processing method and device, a storage medium and an electronic device. The method comprises the following steps: determining a scene region of a virtual scene and contour information of a virtual character in the virtual scene; dividing the scene region based on the contour information to obtain a plurality of sub-scene regions, wherein the contour of each sub-scene region is larger than the contour of the virtual character; baking a first virtual object contained in the sub-scene region to obtain a first depth map of the first virtual object; creating a first shadow map by using the first depth map; and rendering and displaying a first target shadow performance on the virtual character based on the first shadow map, wherein the first target shadow performance is a shadow formed by the first virtual object on the virtual character. The application solves the technical problem that a shadow effect conforming to the requirements of a virtual scene cannot be achieved.

The invention provides a game interaction control method and device and electronic equipment. A target game element is triggered, a triggering influence area is determined based on a triggering position, and a target layer resource is determined from multiple layer resources corresponding to the position where the target game element is located; performing expansion processing on image resources located in the trigger influence area in the target layer resources to obtain expanded target layer resources; fusing a plurality of shadow maps determined based on the trigger position and the target layer resource to obtain a fusion result, and obtaining a target shadow map based on the fusion result; based on preset direction information, texture offset is carried out on image resources, located in the triggering influence area, in the expanded target layer resources, and the offset target layer resources are obtained; and displaying a final display resource obtained by integrating the offset target layer resource and the target shadow map so as to simulate a pressed effect of the target game element. By means of the mode, physical operation consumption can be small, and the reality sense of game element deformation simulation can be improved.

The invention discloses a model rendering method and device and electronic equipment, and relates to the field of graphic processing, Gaussian point data is acquired according to an arrangement sequence, and rendering processing is performed on the Gaussian point data, so that a pixel coverage area, a basic color and transparency of the Gaussian point data are obtained. On the basis, the more accurate grid contour cutting requirement is met through template mapping, and a display area needing to be rendered is obtained. And adjusting the light of the model in the display area by combining the normal mapping with the light setting parameters. And adjusting the shadow effect of the rendered model through the shadow map. And finally, adjusting the basic color of the display area according to all the illumination results, and mixing the transparency and the synthesized color obtained after adjustment with the related rendering result of the previous Gaussian point data to gradually render all the Gaussian point data. The rendering result can be adjusted in a more refined and diversified mode, and the richer model rendering effect is achieved.

This application discloses a method, apparatus, device, medium, and product for generating soft shadow maps, belonging to the field of 3D rendering. The method includes: obtaining a first mesh model corresponding to at least one virtual object in a virtual scene; increasing the number of vertices in the first mesh model corresponding to the at least one virtual object to obtain a second mesh model corresponding to the at least one virtual object; and generating a soft shadow map of the first mesh model corresponding to the at least one virtual object based on the second mesh model, wherein the soft shadow map is used to generate soft shadows for the at least one virtual object, and the soft shadow is a shadow with varying shadow parameters in the edge region. This method generates soft shadows based on the refined second mesh model corresponding to at least one virtual object, enabling the generation of more realistic soft shadow effects.

Embodiments of the present application disclose a shadow baking method and device, electronic equipment and storage medium; embodiments of the present application can obtain a low-precision shadow map of a target model in a scene; determine a low-precision boundary in the low-precision shadow map; perform up-sampling processing on the low-precision boundary to obtain an up-sampled low-precision boundary, the up-sampled low-precision boundary being composed of up-sampled low-precision boundary pixels; select the up-sampled low-precision boundary pixels as up-sampled high-precision boundary pixels; generate a high-precision shadow map of the target model based on the up-sampled high-precision boundary, thereby realizing shadow baking, the up-sampled high-precision boundary being composed of the up-sampled high-precision boundary pixels. In the embodiments of the present application, a series of processing of the entire low-precision shadow map is not required, and only the low-precision boundary is processed, so that a high-precision shadow map can be baked. Thus, the present application can improve baking efficiency.

Systems and methods for migrating a bare-metal instances utilizing a software defined network device include invoking a migration of data from a source bare-metal instance to a destination bare-metal instance, generating, at a software defined networking (SDN) device of the destination bare-metal instance, a shadow mapping comprising a mapping to route data packets directed to a customer address of the source bare-metal instance to a provider address of the SDN device of the destination bare-metal instance, and forwarding, from the SDN device of the source bare-metal instance to the SDN device of the destination bare-metal instance, data packets received at the SDN device of the source bare-metal instance after the source bare-metal instance is disabled until completion of the migration of data.