12 lines
298 B
C
12 lines
298 B
C
#include <c3d/maths.h>
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C3D_FVec Mtx_MultiplyFVec3(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}}{x,y,z}
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float x = FVec3_Dot(mtx->r[0], v);
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float y = FVec3_Dot(mtx->r[1], v);
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float z = FVec3_Dot(mtx->r[2], v);
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return FVec3_New(x, y, z);
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}
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