12 lines
298 B
C
12 lines
298 B
C
|
#include <c3d/maths.h>
|
||
|
|
|
||
|
|
C3D_FVec Mtx_MultiplyFVec3(const C3D_Mtx* mtx, C3D_FVec v)
|
||
|
|
{
|
||
|
|
// http://www.wolframalpha.com/input/?i={{a,b,c},{d,e,f},{g,h,i}}{x,y,z}
|
||
|
|
float x = FVec3_Dot(mtx->r[0], v);
|
||
|
|
float y = FVec3_Dot(mtx->r[1], v);
|
||
|
|
float z = FVec3_Dot(mtx->r[2], v);
|
||
|
|
|
||
|
|
return FVec3_New(x, y, z);
|
||
|
|
}
|