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aap
2016-07-06 11:44:59 +02:00
parent dcbbdfe6b2
commit bd06c54c57
8 changed files with 185 additions and 60 deletions
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src/base.cpp
+27
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@@ -153,6 +153,33 @@ Matrix::invert(Matrix *m1, Matrix *m2)
return matrixInvert((float32*)m1, (float32*)m2);
}
void
Matrix::invertOrthonormal(Matrix *m1, Matrix *m2)
{
m1->right.x = m2->right.x;
m1->right.y = m2->up.x;
m1->right.z = m2->at.x;
m1->up.x = m2->right.y;
m1->up.y = m2->up.y;
m1->up.z = m2->at.y;
m1->at.x = m2->right.z;
m1->at.y = m2->up.z;
m1->at.z = m2->at.z;
m1->pos.x = -(m2->pos.x*m2->right.x +
m2->pos.y*m2->right.y +
m2->pos.z*m2->right.z);
m1->pos.y = -(m2->pos.x*m2->up.x +
m2->pos.y*m2->up.y +
m2->pos.z*m2->up.z);
m1->pos.z = -(m2->pos.x*m2->at.x +
m2->pos.y*m2->at.y +
m2->pos.z*m2->at.z);
m1->rightw = 0.0f;
m1->upw = 0.0f;
m1->atw = 0.0f;
m1->posw = 1.0f;
}
void
Matrix::transpose(Matrix *m1, Matrix *m2)
{