Issue Matrix multiplication in Directx vs OpenGL.

@11110 wrote:

This worked in DirectX & OpenGL platform. But it repeat the same calculate every vertex, which is not efficient.

//Shader
float4x4 matWVP = mul(World, mul(View, Proj));
o.position = mul(i.position, matWVP);

But when i precalculate on CPU and pass into GPU, the rendering become weird.

_effect.Parameters[WVP].SetValue(world*view*projection);
shadercode

//Shader
o.position = mul(i.position, WVP);

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