4 replies to this topic

[Hornsj3]

I'm struggling with the documentation for XNAMATH, trying to use some form of vector of 4 unsigned integers in my constant buffer.

Below is an example of using a 4 component vector of floats, but I want to use unsigned integers.

ConstantBuffer cb1;
cb1.threadGroupDims = XMFLOAT4(destDim, 0, 0, 0);
m_pContext->UpdateSubresource(m_pConstantBuffer, 0, NULL, &cb1, 0, 0);


Does anyone know the typename?

Thanks.

[Slig Commando]

I don't use XNA, but you could just make your own data type with 4 unsigned ints.

[Washu]

I don't use XNA, but you could just make your own data type with 4 unsigned ints.

Its not XNA, its DirectXMath (formerly XNAMath). Which is a library provided with the DirectX SDK.

I'm struggling with the documentation for XNAMATH, trying to use some form of vector of 4 unsigned integers in my constant buffer.

Below is an example of using a 4 component vector of floats, but I want to use unsigned integers.

ConstantBuffer cb1;
cb1.threadGroupDims = XMFLOAT4(destDim, 0, 0, 0);
m_pContext->UpdateSubresource(m_pConstantBuffer, 0, NULL, &cb1, 0, 0);


Does anyone know the typename?

Thanks.

XMVECTORU32 is probably the type you want...
http://msdn.microsof...7(v=vs.85).aspx

Alternatively you can use XMVectorSetInt http://msdn.microsof...2(v=vs.85).aspx

And lastly you can use XMUINT4... http://msdn.microsof...4(v=vs.85).aspx http://msdn.microsoft.com/en-us/library/windows/desktop/microsoft.directx_sdk.reference.xmuint4(v=vs.85).aspx

[Hornsj3]

And lastly you can use XMUINT4... http://msdn.microsof...4(v=vs.85).aspx http://msdn.microsof...4(v=vs.85).aspx

Thanks. Have you tried XMUINT4? It was not recognized as a type. I am including "xnamath.h".


Edit: Oh I see, it references DirectXMath.h. I will try that.

[Hornsj3]

OK I believe I ran into this problem before. I am on Windows 7 and do not know where to get DirectXMath for a non-Windows 8 platform.