- May 26, 2009 at 3:46 pm #29806
I have the following code (OpenGL ES 1.1, SDK ver. 2.4, WindowsXP):
glRotatef(-90.0, 1.0, 0.0, 0.0);
glRotatef(-90.0, 0.0, 0.0, 1.0);
So the issue is that if I comment out the “glGetFloatv(GL_MODELVIEW_MATRIX, debug_matrix);” call, I get completly different results (wrong results). I seems like the rotations in func_1 have no effect if the glGetFloatv is commented, which seems illogical to me. my_matrix does not get multiplied with the rotation matrix which is setup in func_1. What exactly does glGetFloatv do? Does it modify the matrix stack in any way?
This bugs me several days now and I’m real close to insanity :). Any help will be greatly appreciated.
Also, can I get debug version of libgles_cm.dll to see what’s happening in that function?
Thanks, Emil.May 28, 2009 at 10:32 am #33079
This is actually a known issue (BRN27265) and has been fixed for our next release.
Putting a glGetFloatv() in like you have is actually the recommended work-around for this problem at the moment, though.