MSAA FBO blit artifacts

Discussion created by stailgot on Jan 31, 2019
Latest reply on Jul 31, 2019 by stailgot

Hi there.


In lastest drivers i have some problem.

Main opengl context created without msaa enabled. Created fbo with msaa (2x, 4x ... etc) and all draws happen here.

Finally calls glBlitFramebuffer to default\context buffer. And after it appears some artifacts on place AA subpixels.


If i replace texture format GL_RGBA8 to GL_RGB8 or another ( GL_RGBA12, GL_RGBA16 ... etc ) artifacts dissappears. Another one is to enable msaa on ogl context.


minimal code to reproduce 




System: win10 1803, rx 480 19.1.1

4k monitor via dp