IDirect3DDevice9::SetTexture method (d3d9helper.h)

Assigns a texture to a stage for a device.

Syntax

HRESULT SetTexture(
  [in] DWORD                 Stage,
  [in] IDirect3DBaseTexture9 *pTexture
);

Parameters

[in] Stage

Type: DWORD

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.

• 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).

[in] pTexture

Type: IDirect3DBaseTexture9*

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

Return value

Type: HRESULT

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

Remarks

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

Requirements

See also

GetTexture

GetTextureStageState

IDirect3DDevice9

SetTextureStageState