Windows 7 Home Premium x64 ru
NVIDIA GeForce GTX 970 (10.18.13.5906 driver version 24.11.2015)
Bug is also present on another computer with Windows 7 Pro & NVIDIA Quadro FX.
Short description of error
Background texture with WINDOW texture coordinates mapping has no green channel when rendering on CPU. GPU rendering works fine.
Render result is magenta-colored. Separated with "RGB Separate" green channel is black.
Wrong CPU render:
GPU render is OK:
Red and Blue channels are present:
Green channel is missing:
Exact steps for others to reproduce the error
-Switch viewport shading to RENDERED