15 results about "Vertex normal" patented technology

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 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 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 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 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.