static inline void _BrushTransormPlanes(ConvexPolyhedron *pBrush, Matrix *pMtx)
{
//go through the sides
for(s32 i = 0; i < pBrush->numPlane; i++)
{
PlaneTransform(pMtx, &pBrush->planes[i], &pBrush->tPlanes[i]);
PlaneNormalize(&pBrush->tPlanes[i], &pBrush->tPlanes[i]);
}
}
//transform the plane model space
static inline void _BrushRawTransormPlanes(ConvexPolyhedron *pBrush, Matrix *pMtx)
{
//go through the sides
for(int i = 0; i < pBrush->numPlane; i++)
{
pBrush->planes[i].d *= -1; //convert d's sign, for some reason, PlaneTransform doesn't
//like id software's plane format...
PlaneTransform(pMtx, &pBrush->planes[i], &pBrush->planes[i]);
PlaneNormalize(&pBrush->planes[i], &pBrush->planes[i]);
pBrush->tPlanes[i] = pBrush->planes[i];
}
}
void Frustum::ConstructFrom(Mat4x4F combo) {
// Left clipping planeT
planes[PLANE_LEFT] = PlaneNormalize(
Vec4ANegate(Vec4AAdd(Mat4x4Row(combo, 0), Mat4x4Row(combo, 3))));
// Right clipping planeT
planes[PLANE_RIGHT] = PlaneNormalize(
Vec4ASub(Mat4x4Row(combo, 0), Mat4x4Row(combo, 3)));
// Top clipping planeT
planes[PLANE_TOP] = PlaneNormalize(
Vec4ASub(Mat4x4Row(combo, 1), Mat4x4Row(combo, 3)));
// Bottom clipping planeT
planes[PLANE_BOTTOM] = PlaneNormalize(
Vec4ANegate(Vec4AAdd(Mat4x4Row(combo, 1), Mat4x4Row(combo, 3))));
// Near clipping planeT
planes[PLANE_NEAR] = PlaneNormalize(Vec4ANegate(Mat4x4Row(combo, 2)));
// Far clipping planeT
planes[PLANE_FAR] = PlaneNormalize(
Vec4ASub(Mat4x4Row(combo, 2), Mat4x4Row(combo, 3)));
}
