VertexElementUsage Enumeration
Defines usage for vertex elements.
Namespace: Microsoft.Xna.Framework.Graphics
Assembly: Microsoft.Xna.Framework (in microsoft.xna.framework.dll)
Syntax
public enum VertexElementUsage
Members
| Member name | Description | |
|---|---|---|
| Binormal | Vertex binormal data. | |
| BlendIndices | Blending indices data. (BlendIndices with UsageIndex = 0) specifies matrix indices for fixed-function vertex processing using indexed paletted skinning. | |
| BlendWeight | Blending weight data. (BlendWeight with UsageIndex = 0) specifies the blend weights in fixed-function vertex processing. | |
| Color | Vertex data contains diffuse or specular color. (Color with UsageIndex = 0) specifies the diffuse color in the fixed-function vertex shader and in pixel shaders prior to ps_3_0. (Color with UsageIndex = 1) specifies the specular color in the fixed-function vertex shader and in pixel shaders prior to ps_3_0. | |
| Depth | Vertex data contains depth data. | |
| Fog | Vertex data contains fog data. (Fog with UsageIndex = 0) specifies a fog blend value to use after pixel shading is finished. This flag applies to pixel shaders prior to version ps_3_0. | |
| Normal | Vertex normal data. (Normal with UsageIndex = 0) specifies vertex normals for fixed-function vertex processing and the N-patch tessellator. (Normal with UsageIndex = 1) specifies vertex normals for fixed-function vertex processing for skinning. | |
| PointSize | Point size data. (PointSize with UsageIndex = 0) specifies the point-size attribute used by the setup engine of the rasterizer to expand a point into a quad for the point-sprite functionality. | |
| Position | Position data. (Position with UsageIndex = 0 ) specifies the nontransformed position in fixed-function vertex processing and the N-patch tessellator. (Position with UsageIndex = 1) specifies the nontransformed position in the fixed-function vertex shader for skinning. | |
| Sample | Vertex data contains sampler data. (Sample with UsageIndex = 0) specifies the displacement value to look up. This flag can be used only with VertexElementMethod.LookUpPresampled or VertexElementMethod.LookUp. | |
| Tangent | Vertex tangent data. | |
| TessellateFactor | Single, positive floating-point value. (TessellateFactor with UsageIndex = 0) specifies a tessellation factor used in the tessellation unit to control the rate of tessellation. | |
| TextureCoordinate | Texture coordinate data. (TextureCoordinate, n) specifies texture coordinates in fixed-function vertex processing and in pixel shaders prior to ps_3_0. These coordinates can be used to pass user-defined data. |
Remarks
Vertex data is declared with an array of VertexElement structures. Each element in the array contains a usage type.
See Also
Reference
Microsoft.Xna.Framework.Graphics Namespace
Platforms
Xbox 360, Windows XP SP2, Windows Vista