TheCloud/panda3d
1
0
Fork 0
mirror of https://github.com/panda3d/panda3d.git synced 2025-10-03 10:22:45 -04:00
Code Issues Packages Projects Releases Wiki Activity

Prevent trying to invert singular matrix

Browse Source
This commit is contained in:
Chris Brunner 2010-06-29 22:47:44 +00:00
parent 2b1f43f5d8
commit 06bc35360d
1 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
panda/src/egg/eggGroup.cxx
View File

@ -1236,12 +1236,20 @@ adjust_under() {
// Our own transform also affects our node frame. // Our own transform also affects our node frame.
_node_frame = _node_frame =
new MatrixFrame(get_transform3d() * get_node_frame()); new MatrixFrame(get_transform3d() * get_node_frame());
// To prevent trying to invert a sigular matrix
LMatrix4d mat;
bool invert_ok = mat.invert_from(get_node_frame());
if (invert_ok) {
_node_frame_inv = _node_frame_inv =
new MatrixFrame(invert(get_node_frame())); new MatrixFrame(invert(get_node_frame()));
}
_vertex_to_node = _vertex_to_node =
new MatrixFrame(get_vertex_frame() * get_node_frame_inv()); new MatrixFrame(get_vertex_frame() * get_node_frame_inv());
_node_to_vertex = _node_to_vertex =
new MatrixFrame(get_node_frame() * get_vertex_frame_inv()); new MatrixFrame(get_node_frame() * get_vertex_frame_inv());
} }
if (is_instance_type()) { if (is_instance_type()) {