Revision: 38522
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=38522
Author: campbellbarton
Date: 2011-07-20 05:57:38 +0000 (Wed, 20 Jul 2011)
Log Message:
-----------
patch [#28032] Python Mathutils: Matrix Multiplication Error
from Scott Giese (sgiese)
Modified Paths:
--------------
trunk/blender/source/blender/python/mathutils/mathutils_Matrix.c
Modified: trunk/blender/source/blender/python/mathutils/mathutils_Matrix.c
===================================================================
--- trunk/blender/source/blender/python/mathutils/mathutils_Matrix.c
2011-07-20 01:12:57 UTC (rev 38521)
+++ trunk/blender/source/blender/python/mathutils/mathutils_Matrix.c
2011-07-20 05:57:38 UTC (rev 38522)
@@ -1594,20 +1594,14 @@
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;
}
}
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