Change Details

**System Information** WIn10 GTX980Ti **Blender Version** 2.79bd8ac9 **Short description of error** When OpenGL render, alpha processing when saving with FFmpeg differs between 2.78 and 2.79. It is not Unpremultiply 2.79. **Exact steps for others to reproduce the error** Add Background images > Draw Front > Opacity to lower > OpenGL render Animation(FFmpeg Video>2.78 H.264) save {F948478}

**System Information** WIn10 GTX980Ti **Blender Version** 2.79bd8ac9 **Short description of error** When OpenGL render, alpha processing when saving with FFmpeg differs between 2.78 and 2.79. It is not Unpremultiply 2.79. **Exact steps for others to reproduce the error** Add Background images > Draw Front > Opacity to lower > OpenGL render Animation(FFmpeg Video/2.78 H.264) save {F948478}

**System Information** WIn10 GTX980Ti **Blender Version** 2.79bd8ac9 **Short description of error** When OpenGL render, alpha processing when saving with FFmpeg differs between 2.78 and 2.79. It is not Unpremultiply 2.79. **Exact steps for others to reproduce the error** Add Background images > Draw Front > Opacity to lower > OpenGL render Animation(FFmpeg Video>2/2.78 H.264) save {F948478}