Sorry to drag this back from the grave, but I've just been playing with the OpenGL parts of BMax, and have run up against this problem.
When I try to use glBlendEquation the error message I get is "Caused error <unknown>"
I displayed the output of glGetString(GL_EXTENSIONS) and couldn't seem to find GL_ARB_Imaging. I'm using a fairly old ATI card, is that the limiting factor in terms of my version of OpenGL? Or the Extensions? I looked at the OpenGL site, and it said that I should refer to my card manufacturer for the most recent version of OGL for my card. I'm using the most up-to-date drivers for this card.
Also, I assume that blend effects such as add and subtract are available to me in some way, as they're used in Max2D. Are these types of blending implemented through certain configurations of the glBlendFunc parameters?
Any advice appreciated.
When I try to use glBlendEquation the error message I get is "Caused error <unknown>"
I displayed the output of glGetString(GL_EXTENSIONS) and couldn't seem to find GL_ARB_Imaging. I'm using a fairly old ATI card, is that the limiting factor in terms of my version of OpenGL? Or the Extensions? I looked at the OpenGL site, and it said that I should refer to my card manufacturer for the most recent version of OGL for my card. I'm using the most up-to-date drivers for this card.
Also, I assume that blend effects such as add and subtract are available to me in some way, as they're used in Max2D. Are these types of blending implemented through certain configurations of the glBlendFunc parameters?
Any advice appreciated.