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ID3DXEffectStateManager::SetVertexShaderConstantF method - A callback function that must be implemented by a user to set an array of vertex shader floating-point constants. |
3a13040d-5d5a-4454-bf11-cda9653585c0 |
ID3DXEffectStateManager::SetVertexShaderConstantF method (D3DX9Effect.h) |
reference |
05/31/2018 |
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A callback function that must be implemented by a user to set an array of vertex shader floating-point constants.
HRESULT SetVertexShaderConstantF(
[out] UINT StartRegister,
[out] const FLOAT *pConstantData,
[out] UINT RegisterCount
);-
StartRegister [out]
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Type: UINT
The zero-based index of the first constant register.
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pConstantData [out]
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Type: const FLOAT*
An array of floating-point constants.
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RegisterCount [out]
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Type: UINT
The number of registers in pConstantData.
Type: HRESULT
The user-implemented method should return S_OK. If the callback fails when setting the device state, either of the following will occur:
- The effect will fail during ID3DXEffect::BeginPass.
- The dynamic effect state call (such as IDirect3DDevice9::SetVertexShaderConstantF) will fail.
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