25 results about "Vertex normal" patented technology

A decoder subdivides, for a 3-dimensional (3D) mesh, a bash mesh obtained from a bitstream to generate a first subdivided mesh. To subdivide an edge, formed by a first and a second vertex from the first subdivided mesh, the decoder determines a pair of vertices, from the first subdivided mesh, used to generate the first vertex. And, the decoder determines a refinement vector based on combining vertex normals of the pair of vertices. The edge is subdivided to determine a vertex based on the refinement vector and a point along the edge. The 3D mesh is reconstructed by the decoder based on a second subdivided mesh including vertices of the first subdivided mesh and the vertex.

The invention discloses a three-dimensional model dynamic rendering method and a storage medium, and the method comprises the steps: obtaining three-dimensional data of a target scene, obtaining a plurality of voxels, and enabling each voxel to correspond to a plurality of voxel attributes and an initial comprehensive displacement vector; in any voxel in any time step, obtaining a comprehensive displacement vector of the voxel in the current time step according to a preset physical deformation rule and / or animation curve deformation rule, and performing coordinate transformation on the voxel; after the coordinate transformation, updating the voxel attribute of the voxel corresponding to the current time step length; and performing real-time three-dimensional rendering on the target scene according to the vertex normal of each voxel at the current time step length and the voxel attribute. The physical consistency is ensured in the dynamic deformation process by synthesizing the displacement vector; by updating the voxel attributes, the voxel attributes are kept in smooth transition after deformation; and high-quality real-time rendering of the target scene is realized by recalculating the deformed vertex normal and combining the illumination model.

The invention discloses a model rendering method and device, computer equipment and a storage medium, and belongs to the technical field of computers. The method comprises the steps of obtaining a three-dimensional grid model in response to a rendering instruction for the three-dimensional grid model; a component of a vector pointing to the vertex from a target position point in the horizontal direction is determined as a two-dimensional vector of the vertex, and the target position point is located on the center line of the three-dimensional grid model; determining a height offset parameter of the vertex based on the height value of the vertex in the vertical direction; the two-dimensional vectors of the vertexes and the height offset parameters are combined, vertex normal lines of the vertexes are obtained, and the vertex normal lines of the vertexes are used for reflecting the surface orientation of the three-dimensional mesh model; and rendering the three-dimensional mesh model based on the vertex normal of the plurality of vertexes. In the rendering process, the process of calculating the vertex normal in real time replaces the process of pre-baking the wrapping normal by using a specially designed plug-in tool, so that the operation is simple and convenient, and the overall efficiency of rendering the three-dimensional grid model is improved.

The invention belongs to the technical field of three-dimensional modeling, and particularly relates to a novel multi-detail-level terrain rendering method, which comprises the following steps: S1, inputting terrain data; s2, calculating a vertex, a normal and a texture coordinate array, and transmitting into a rendering pipeline; s3, calculating an LOD maximum value, a resolution ratio scale factor and a sight distance switching factor; s4, setting basic attributes of root nodes of the quadtree, and completing construction of terrain geometry; s5, rendering terrain geometry in real time; the method has the advantages that by setting basic attributes of root nodes of the quadtree, a topographic data structure with the quadtree as an organization form is constructed; a topographic organization mode of'single-source geometric data + multi-level index rules' is established, and a mode of'repeatedly storing complete geometric data in each level of LOD 'in a traditional tile pyramid is converted into a mode of only storing a vertex, a normal and a texture coordinate array; the memory pressure in a high-precision terrain scene can be reduced, and the terrain real-time rendering efficiency can be improved.

The invention discloses a three-dimensional construction method and device of a cold source pipe network, equipment, a medium and a product, and the method comprises the steps: carrying out the transformation processing of a constructed standardized component with a low surface number according to a predefined pipe diameter parameter and a coordinate transformation algorithm, and generating a three-dimensional pipeline model with any space trend and any pipe diameter; calculating all vertex normal lines of the three-dimensional pipeline model; and according to the vertex normal and a preset Blinn-Phong illumination model, performing layered rendering processing of ambient light, diffuse reflection and highlight reflection on the three-dimensional pipeline model to obtain a rendered three-dimensional pipeline model. By adopting the method, rendering optimization of the low-surface-number pipeline model can be realized, and the expression accuracy of the pipeline appearance is improved, so that the three-dimensional visualization and dynamic monitoring capability of the cold source pipe network is improved.

The invention relates to a water body rendering method and device, equipment, a storage medium and a program product, and the method comprises the steps: superposing periodically continuous waveform data and noise data to all vertexes of a horizontal grid, and obtaining a wave pattern; coloring the wave white mold to obtain a wave model; respectively carrying out derivation processing on the waveform data and the noise data at each vertex in the wave pattern to obtain a first space gradient corresponding to the waveform data and a second space gradient corresponding to the noise data; performing composite processing on the first space gradient and the second space gradient to obtain a composite gradient of each vertex; obtaining a vertex normal vector of each vertex based on the composite gradient of each vertex; based on the vertex normal vector and the line-of-sight direction vector of each vertex, generating edge intensity data of the wave contour; and superposing the edge strength data to the wave model to obtain a water body rendering result. According to the scheme, the vertex normal vector is dynamically determined based on the composite gradient, so that the rendered water body has a dynamic surge effect.

The invention discloses an object stroking method and device, electronic equipment and a computer readable storage medium, and the method comprises the steps: carrying out the basic material rendering processing of an object model of a target object, and obtaining a first rendering model; based on the shooting direction of the virtual camera, removing vertexes which do not face the virtual camera in the object model to obtain a model after removal; based on the vertex offset information, controlling each vertex of the model after elimination to offset along a vertex normal in the world space to obtain an offset coordinate; based on a preset stroking special effect texture map and the offset coordinates of the vertexes of the model after elimination, the model after elimination is rendered, a second rendering model is obtained, an edge area in the second rendering model presents a stroking effect, and a non-edge area has transparency; and fusing the first rendering model and the second rendering model to obtain a fused model with an object stroking effect, so that the presentation effect of the object stroking special effect of the virtual object can be improved.

The present disclosure relates to an information processing device and a method configured so that it is possible to suppress an increase in the data length of a vertex normal vector. The method includes deriving a maximum scalar value of a face normal vector of an adjacent face around a target vertex of a subdivided base mesh, using the maximum scalar value to scale the face normal vector of the adjacent face, using the scaled face normal vector to derive the vertex normal vector of the target vertex, and deriving a local-coordinate displacement vector based on the vertex normal vector. The present disclosure can, for example, be applied to information processing devices, electronic equipment, information processing methods, or programs, etc.

The invention discloses a pipeline parameterization rendering method applied to a lightweight display platform, and relates to the technical field of pipeline parameterization rendering, and the method comprises the steps: obtaining pipeline parameter data, carrying out the contour boundary point selection through uniform angle sampling, obtaining an initial contour boundary point, carrying out the optimization adjustment through a step length adjustment algorithm, and obtaining the pipeline parameter data; constructing vertex coordinates according to the optimized and adjusted contour boundary points; constructing a vertex normal vector through pipeline parameter data, constructing vertex texture coordinates by using a texture mapping method and combining vertex coordinates, and constructing a triangular mesh by using a Deloye triangulation algorithm; and compressing the triangular mesh by using the topologically guided micro-mesh to obtain compressed data, and rendering the compressed data through visible buffer sputtering to generate rendered data. According to the method, the data volume can be greatly reduced, the rendering efficiency is improved, and the platform resource consumption is reduced, so that the method is more suitable for application requirements of lightweight graphic platforms.

The application provides a laser effect rendering method, device and equipment and a storage medium, which are characterized in that the method determines the vertex normal in the line-of-sight space based on the vertex normal of the light model, samples the laser map with the vertex normal in the line-of-sight space, obtains a first texture map, and then renders the model with the sampled first texture map and a second texture map in the light model, so as to simulate the laser material through the light model. In this way, the sampling and calculation amount is greatly reduced, the performance overhead is reduced, the frame rate of game running is improved, the rendering efficiency is improved, and a basis is provided for the development of a mobile game.

The invention provides a stylized stroke rendering method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring vertex information of a model; reconstructing a camera vector of the world space based on the vertex information; generating a first layer of texture coordinates based on a first dot product result of the reconstructed camera vector and a world space vertex normal; generating a second layer of texture coordinates based on a second dot product result of the world space vertex normal and the light direction; according to the first-layer texture coordinates and the second-layer texture coordinates, corresponding brush chartlets are sampled, and first-layer stroking information and second-layer stroking information are obtained; and carrying out fusion processing on the first layer of stroking information and the second layer of stroking information to generate a stroking rendering effect of the model. Through the method provided by the invention, the thickness and depth dynamic change of the model stroking is realized, and the artistic expressive force of the model is enhanced.

According to one aspect of the disclosure, a video processing method is provided. The method may include inputting attribute data associated with an image region and a sparse depth map to a sparse depth completion network. The method may include generating a refined dense depth map based on the attribute data and the sparse depth map using the sparse depth completion network. The method may include performing a three-dimensional (3D) reconstruction process based on the refined dense depth map to generate a point cloud of the image region. The method may include performing a triangular meshing process to generate a mesh model based on the point cloud of the image region. The method may include performing a texture mapping process based on the mesh model and the attribute data to generate a textured mesh of the image region. The method may include performing a vertex normal vector calculation process based on the textured mesh to generate a three-dimensional representation of the image region.

A decoder obtains, from a bitstream, a base mesh for a 3D mesh. The decoder subdivides an edge, formed by a first and a second vertex from a first mesh associated with the base mesh, to determine a vertex. Subdividing the edge includes: determining a directional alignment between a first vertex normal of the first vertex and a second vertex normal of the second vertex, and determining the vertex based on a point along the edge and a refinement vector that is based on the directional alignment, the first vertex normal, and the second vertex normal. The decoder decodes the 3D mesh based on a second mesh comprising vertices of the first mesh and the vertex.

The invention belongs to the technical field of 3D rendering, and discloses an environment reflection correction method and system based on 3D graphic rendering, and the method comprises the steps: obtaining the world coordinates of a target vertex and a camera through a vertex shader, carrying out the normalization processing, obtaining a sight line direction vector, judging the sight line orientation through calculating the dot product of the vector and a vertex normal vector, and carrying out the correction of the target vertex. And the reflection direction is determined in a targeted manner and transmitted to the pixel shader, so that wrong sampling of the back environment is avoided from the source. The vertex reflection direction vector is interpolated based on the same primitive, the reflection direction of each pixel point can be accurately obtained, it is ensured that the reflection effect fits the actual surface characteristics of the model, and correction is completed by sampling an environment reflection value and combining illumination calculation. According to the method, the real reduction degree and immersion of the 3D scene are greatly improved, the reliability and stability of the rendering effect are enhanced, and better visual experience is brought to a user.

The invention discloses a model processing method, a model processing device, a computer readable storage medium and electronic equipment, and the method comprises the steps: carrying out voxelization processing on a to-be-processed grid model, generating a voxel model capable of wrapping the to-be-processed grid model, and carrying out the voxelization processing on the to-be-processed grid model according to the voxel model, and generating a reference grid model matched with the surface contour of the to-be-processed grid model, selecting a reference vertex corresponding to each first vertex in the to-be-processed grid model from a plurality of second vertexes included in the reference grid model, and determining the normal of the reference vertex as the normal of the corresponding first vertex. Thus, the manual participation link in the model vertex normal adjustment process can be reduced, the dependence of model vertex normal adjustment on the technical level of art personnel is reduced, and the situation that the model manufacturing efficiency is affected due to the fact that the art personnel manually adjust the vertex normal is long in time consumption and low in efficiency is avoided; and the adjustment efficiency of the vertex normal of the model and the manufacturing efficiency of the three-dimensional model can be guaranteed.

The invention discloses a method for detail level setting and selection of a three-dimensional model. The method comprises the following steps: dividing the three-dimensional model into a plurality of model parts; setting a different level of detail for each of the plurality of model portions, wherein the level of detail of the model portion sensitive to the vertex normal is fixed as the highest level; and for each model part except the model part with the fixed detail level in the plurality of model parts, setting the number of pixels corresponding to each detail level of the model part, and the higher the detail level is, the larger the number of pixels is. The invention also relates to a system, a device and a medium for detail level setting of a three-dimensional model.

The invention provides a rendering method and device for a visual interaction effect and electronic equipment, and the method comprises the steps: responding to an interaction behavior between an interaction model in a virtual scene and a target model, and controlling a particle emitter mounted on the interaction model to emit a preset normal map; the normal chartlet comprises normal information representing an interaction effect; rendering the normal map to a preset texture to obtain a target texture, and mixing a normal of the target texture with a vertex normal of the target model to obtain a target vertex normal of the target model; and rendering on the surface of the target model based on the target vertex normal to generate an image representing an interaction effect. In the mode, the normal map is emitted through the particle emitter, the normal map is rendered into the preset texture, and the preset texture is sampled to be mixed with the vertex normal of the target model, so that the water ripple effect can be rendered based on the mixed vertex normal, the implementation process is simple, the performance consumption is low, and a vivid visual effect can be realized; and thus, the compatibility is improved.

The application discloses a pipeline parameterized rendering method applied to a light-weight display platform, relates to the technical field of pipeline parameterized rendering, and comprises the following steps: acquiring pipeline parameter data, performing contour boundary point selection by utilizing uniform angle sampling, obtaining initial contour boundary points, and optimizing and adjusting the initial contour boundary points by a step adjustment algorithm; and constructing vertex coordinates according to the optimized and adjusted contour boundary points; constructing vertex normal vectors by the pipeline parameter data, constructing vertex texture coordinates by utilizing a texture mapping method in combination with the vertex coordinates, and constructing a triangular mesh by utilizing a Delaunay triangulation algorithm; compressing the triangular mesh by utilizing a topological guide micro-mesh, obtaining compressed data, and rendering the compressed data by a visibility buffer sputtering to generate rendering data. The application can greatly reduce the data amount, improve the rendering efficiency, reduce platform resource consumption, and is more suitable for the application requirements of a light-weight graphics platform.

A decoder obtains, from a bitstream for a 3D mesh, one or more interpolation indications indicating a first and second interpolation weight associated with a level of detail (LOD) of LODs. A base mesh for the 3D mesh is subdivided to generate a subdivided mesh. The subdividing includes: obtaining a first and second vertex normal of a first and second vertex forming an edge used to generate a vertex, at the LOD, of the subdivided mesh, and determining a vertex normal of the vertex based on combining the first and second vertex normals according to the first and second interpolation weights. The decoder obtains, from the bitstream and based on vertex normals of vertices of the subdivided mesh, displacements of the vertices. The 3D mesh is reconstructed based on the displacements and the subdivided mesh.

The application discloses a large-scale scene face reduction optimization method, device and equipment based on a clustering algorithm, wherein the method comprises the following steps: calculating vertex normal vectors and constructing a triangle facet topology relationship; performing multi-condition plane area determination, merging and topologically optimizing the plane areas meeting the conditions; performing multi-mode detection, judging triangle facet model contour points, performing K-Means clustering on non-contour points, and forming a point set; and performing triangle partitioning on the point set, and reconstructing a new triangle facet model. The application realizes smooth processing of a model salient region through optimization of the triangle facet model, so that after model optimization, model abnormal point face protrusions are reduced, facet redundancy is reduced, a better display effect is maintained, the operation performance of the model is greatly improved, and the effect display and fluency of real scene three-dimensional rendering and demonstration are ensured.

The embodiment of the invention relates to an object rendering method and device and a storage medium. The method proposed herein includes: determining, for a first voxel of the object, at least one normal of the first voxel based on a geometric relationship between the first voxel and a second voxel, where the at least one normal includes at least one of a plane normal and a vertex normal of the first voxel, and the second voxel is a voxel in the object located near the first voxel; determining optical information of the first voxel based on the at least one normal; and rendering the first voxel into an image corresponding to the object at least based on the optical information of the first voxel.

The present disclosure provides a method and device for generating a rendering image, computer equipment and a storage medium, wherein the method comprises: obtaining a first rendering model generated by rendering a three-dimensional model of a target object using a color map; performing position offset processing on corresponding vertex normals of vertices in the three-dimensional model and rendering processing on a preset color to obtain a second rendering model; and performing display superposition processing on the first rendering model and the second rendering model to obtain a target rendering image.

A decoder generates a subdivided mesh from a base mesh for a 3D mesh and generates vertex normals of vertices of the subdivided mesh. A vertex normal of a vertex of the vertices is generated based on: obtaining a first and second vertex, of the vertices, associated with generating the vertex, and determining, based on a first vertex normal of the first vertex and a second vertex normal of the second vertex being antiparallel vectors, a vertex normal of the vertex that is perpendicular to the first vertex normal and the second vertex normal. The decoder decodes, from a bitstream, displacement information associated with displacements of the vertices. The displacements are reconstructed by the decoder for the vertices based on the displacement information and the vertex normals.

The invention relates to the technical field of computer graphics, and provides a map generation method and device, equipment, a storage medium and a program product.The map generation method comprises the steps that firstly, a texture image of a target two-dimensional object is obtained, and brightness information of all pixels in the texture image is extracted; meanwhile, acquiring skeleton animation data for driving the target two-dimensional object, and determining a vertex normal vector which is transformed in real time along with skeleton movement; thirdly, calculating theoretical illumination intensity of each pixel in a preset virtual light source direction based on the vertex normal vector; then, the depth information of each pixel is determined by using the difference between the extracted brightness information and the calculated theoretical illumination intensity; and finally, generating a normal map for illumination rendering according to the depth information. According to the method and the device, the normal chartlet adaptive to dynamic deformation of the skeletal animation can be generated, and the problems of high manufacturing cost and incapability of matching a static chartlet with a dynamic posture in related technologies are solved.

Embodiments of the present disclosure relate to an object rendering method, device and storage medium. The method proposed herein includes: determining, for a first voxel of an object, at least one normal of the first voxel based on a geometric relationship between the first voxel and a second voxel, wherein the at least one normal includes at least one of a face normal and a vertex normal of the first voxel, and the second voxel is a voxel in the object located in the vicinity of the first voxel; determining optical information of the first voxel based on the at least one normal; and rendering the first voxel into an image corresponding to the object based on at least the optical information of the first voxel.