ID3D11DeviceContext::DrawInstanced method
Draw non-indexed, instanced primitives.
Syntax
void DrawInstanced( [in] UINT VertexCountPerInstance, [in] UINT InstanceCount, [in] UINT StartVertexLocation, [in] UINT StartInstanceLocation );
Parameters
- VertexCountPerInstance [in]
-
Type: UINT
Number of vertices to draw.
- InstanceCount [in]
-
Type: UINT
Number of instances to draw.
- StartVertexLocation [in]
-
Type: UINT
Index of the first vertex.
- StartInstanceLocation [in]
-
Type: UINT
A value added to each index before reading per-instance data from a vertex buffer.
Return value
Returns nothing.
Remarks
A draw API submits work to the rendering pipeline.
Instancing may extend performance by reusing the same geometry to draw multiple objects in a scene. One example of instancing could be to draw the same object with different positions and colors.
The vertex data for an instanced draw call normally comes from a vertex buffer that is bound to the pipeline. However, you could also provide the vertex data from a shader that has instanced data identified with a system-value semantic (SV_InstanceID).
Windows Phone 8: This API is supported.
Requirements
|
Header |
|
|---|---|
|
Library |
|
See also
Send comments about this topic to Microsoft
Build date: 11/28/2012
