Document(http://www.opengl.org/sdk/docs/man/x...wapBuffers.xml) saids glXSwapBuffers performs an implicit glFlush and has no effect when drawable is not double buffer.
If I called glXSwapBuffers with single-buffer window, does it perform glFlush before returned? or do nothing and just returns?
You aren't suppose to call glXSwapBuffers on a single buffered window. It won't display anything. You have to call glFlush().
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Sig: http://glhlib.sourceforge.net
an open source GLU replacement library. Much more modern than GLU.
float matrix[16], inverse_matrix[16];
glhLoadIdentityf2(matrix);
glhTranslatef2(matrix, 0.0, 0.0, 5.0);
glhRotateAboutXf2(matrix, angleInRadians);
glhScalef2(matrix, 1.0, 1.0, -1.0);
glhQuickInvertMatrixf2(matrix, inverse_matrix);
glUniformMatrix4fv(uniformLocation1, 1, FALSE, matrix);
glUniformMatrix4fv(uniformLocation2, 1, FALSE, inverse_matrix);
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