Imagination PowerVR SDK Blog

Bug in PVRVFrame 10.1: Luminance cube map texture shows up red

pvrvframe

#1

When cubemap texture is uploaded with GL_LUMINANCE format, sampling it behaves as if the texture had single channel GL_RED format. GL_LUMINANCE should produce grey scale texture.

GL vendor: Imagination Technologies (Host: NVIDIA Corporation)
GL renderer: PVRVFrame 10.1 - None (Host : GeForce GTX 760/PCIe/SSE2) (SDK Build: 3.5@3510720)
GL version: 3.0(Host : 4.5.0 NVIDIA 355.82) (300)
GL shading language version : GLSL ES 3.0(Host: 4.50 NVIDIA)


#2

Hi Timo,

Thanks for reporting the problem. I’ll update this chain once the PVRVFrame lead has had the opportunity to investigate the issue.


#3

Hi Timo,

The bug has been fixed for our upcoming 4.0 SDK release (changelist 3755093).