I recently updated my drivers from OpenGL 3.2 to 4.3 and it seems to be interpreted differently. I was convinced this shouldn’t impact legacy OpenGL.
For example, when using a FBO to render to a texture of type GL_UNSIGNED_SHORT_5_6_5 in OpenGL 3.2 the quality was good. But after updating to 4.3 the quality is poor and blotchy. I changed this to GL_UNSIGNED_SHORT and it seems to have fixed it but there are a bunch of other issues I’m witnessing as well.
Has anyone else experienced anything similar to this?
I am using the fixed function pipeline as well as programmable and wonder if that has anything to do with it.
Thanks