IDirect3DDevice9::SetTexture

Assigns a texture to a stage for a device.

HRESULT SetTexture(
  DWORD Sampler,
  IDirect3DBaseTexture9 * pTexture
);

Parameters

Sampler

Zero based sampler number. Textures are bound to samplers; samplers define sampling state such as the filtering mode and the address wrapping mode. Textures are referenced differently by the programmable and the fixed function pipeline:

• Programmable shaders reference textures using the sampler number. The number of samplers available to a programmable shader is dependent on the shader version. For vertex shaders, see Sampler (Direct3D 9 asm-vs). For pixel shaders see Sampler (Direct3D 9 asm-ps).
• The fixed function pipeline on the other hand, references textures by texture stage number. The maximum number of samplers is determined from two caps: MaxSimultaneousTextures and MaxTextureBlendStages of the D3DCAPS9 structure.

[in] There are two other special cases for stage/sampler numbers.

• A special number called D3DDMAPSAMPLER is used for Displacement Mapping (Direct3D 9).
• A programmable vertex shader uses a special number defined by a D3DVERTEXTEXTURESAMPLER when accessing Vertex Textures in vs_3_0 (DirectX HLSL).

pTexture

[in] Pointer to an IDirect3DBaseTexture9 interface, representing the texture being set.

Return Values

If the method succeeds, the return value is D3D_OK. If the method fails, the return value can be D3DERR_INVALIDCALL.

Remarks

IDirect3DDevice9::SetTexture is not allowed if the texture is created with a pool type of D3DPOOL_SCRATCH. IDirect3DDevice9::SetTexture is not allowed with a pool type of D3DPOOL_SYSTEMMEM texture unless DevCaps is set with D3DDEVCAPS_TEXTURESYSTEMMEMORY.

Requirements

Header: Declared in D3D9.h.

Library: Use D3D9.lib.

See Also

IDirect3DDevice9::GetTexture, IDirect3DDevice9::GetTextureStageState, IDirect3DDevice9::SetTextureStageState