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patch [#28032] Python Mathutils: Matrix Multiplication Error

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from Scott Giese (sgiese)
This commit is contained in:
Campbell Barton 2011-07-20 05:57:38 +00:00
parent fd7825e7dc
commit 0ed523a8dd
1 changed files with 5 additions and 11 deletions
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16
source/blender/python/mathutils/mathutils_Matrix.c
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@ -1594,20 +1594,14 @@ static PyObject *Matrix_mul(PyObject *m1, PyObject *m2)
return NULL;
}
else {
float mat[16]= {0.0f, 0.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f};
double dot = 0.0f;
float mat[16]= {0.0f};
int x, y, z;
for(x = 0; x < mat2->row_size; x++) {
for(y = 0; y < mat1->col_size; y++) {
for(z = 0; z < mat1->row_size; z++) {
dot += (mat1->matrix[z][y] * mat2->matrix[x][z]);
for(x = 0; x < mat1->row_size; x++) {
for(y = 0; y < mat2->col_size; y++) {
for(z = 0; z < mat2->row_size; z++) {
mat[x * mat1->col_size + y] += (mat1->matrix[x][z] * mat2->matrix[z][y]);
}
mat[((x * mat1->col_size) + y)] = (float)dot;
dot = 0.0f;
}
}