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dispelled the mega-evil of GL_TRANSPOSE_*_MATRIX_ARB

This commit is contained in:
mtarini 2005-02-10 20:09:11 +00:00
parent 8e25bbadcb
commit 0233f3799a
1 changed files with 21 additions and 1 deletions
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22
wrap/gui/view.h
View File

@ -24,6 +24,9 @@
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$Log: not supported by cvs2svn $ $Log: not supported by cvs2svn $
Revision 1.11 2005/01/19 10:29:45 cignoni
Removed the inclusion of a glext.h
Revision 1.10 2005/01/18 16:47:42 ricciodimare Revision 1.10 2005/01/18 16:47:42 ricciodimare
*** empty log message *** *** empty log message ***
@ -113,10 +116,27 @@ public:
template <class T> void View<T>::GetView() { template <class T> void View<T>::GetView() {
double m[16]; double m[16];
// Don't use GL_TRANSPOSE_*_MATRIX_ARB
// they are veeeery evil!
// On many OpenGL implementation they just don't work, causing endless hours of debugging!
/*
glGetDoublev(GL_TRANSPOSE_PROJECTION_MATRIX_ARB, m); glGetDoublev(GL_TRANSPOSE_PROJECTION_MATRIX_ARB, m);
proj.Import(Matrix44d(m)); proj.Import(Matrix44d(m));
glGetDoublev(GL_TRANSPOSE_MODELVIEW_MATRIX_ARB, m); glGetDoublev(GL_TRANSPOSE_MODELVIEW_MATRIX_ARB, m);
model.Import(Matrix44d(m)); model.Import(Matrix44d(m));
*/
// Use standard routines, and transpose manually.
// some 10^-20 seconds slower, but a lot safer
glGetDoublev(GL_PROJECTION_MATRIX, m);
proj.Import(Matrix44d(m));
Transpose(proj);
glGetDoublev(GL_MODELVIEW_MATRIX, m);
model.Import(Matrix44d(m));
Transpose(model);
glGetIntegerv(GL_VIEWPORT, viewport); glGetIntegerv(GL_VIEWPORT, viewport);