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Geometrian

HLSL Mipmapping on XBox360

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Hi,

My code runs perfectly on my computer. I have many shaders with samplers that look like
sampler2D diffuse_sampler = sampler_state {
Texture = (diffuse_texture);
MipFilter = LINEAR; MinFilter = MIN_MAG_MIP_LINEAR; MagFilter = LINEAR;
AddressU = CLAMP; AddressV = CLAMP;
};
When I make an XBox360 project, however, the compiler spits out:
(9): ID3DXEffectCompiler: State 'MINFILTER' does not accept 'MIN_MAG_MIP_LINEAR' as a value
ID3DXEffectCompiler: There was an error initializing the compiler [path]
Changing MinFilter to "LINEAR" satiates the compiler, and mipmapping still seems to work, but why the difference?

Thanks,
-G

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'MIN_MAG_MIP_LINEAR' is a DirectX 10/11 style sampler state (part of the D3D10_FILTER and D3D11_FILTER enums).

Xbox 360 is Direct3D 9* so doesn't support those things. Look at the filter names in the D3D9 enum and you'll be safe. "LINEAR" for a mip filter (tri-linear) is supported right back to D3D7.

[* The hardware, the native D3D9 API, and the HLSL support on 360 do have a few D3D10 features, but it's expressed as extensions to the D3D9 API].

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