Edit

Share via

Vertex Tweening (Direct3D 9)

  • Article

Vertex tweening blends two user-provided positions (or normals). Tweening is mutually exclusive from vertex blending with weights. Tweening is performed before lighting and clipping, and is enabled by setting D3DRS_VERTEXBLEND to D3DVBF_TWEENING. The resulting vertex position is computed by:

POSITION = POSITION1 * (1.0 - TWEENFACTOR) + POSITION2 * TWEENFACTOR

The same approach is used for calculating normals. For more information, see Using Vertex Tweening (Direct3D 9).

Geometry Blending