13 lines
355 B
C
13 lines
355 B
C
#include <c3d/maths.h>
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C3D_FVec Mtx_MultiplyFVec4(const C3D_Mtx* mtx, C3D_FVec v)
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{
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// http://www.wolframalpha.com/input/?i={{a,b,c,d},{e,f,g,h},{i,j,k,l},{m,n,o,p}}{x,y,z,w}
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float x = FVec4_Dot(mtx->r[0], v);
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float y = FVec4_Dot(mtx->r[1], v);
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float z = FVec4_Dot(mtx->r[2], v);
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float w = FVec4_Dot(mtx->r[3], v);
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return FVec4_New(x, y, z, w);
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}
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