Cloned Urho3D on Linux. Took the Source/Samples/UrhoSampleProject and copied it out of tree. Did “cmake .”. Did, “make”. Provides two warnings of redefined defines for URHO3D_OPENGL and URHO3D_SSE. I ignored those even though they are annoying on every make. Run the resulting binary in bin. It works. It complains about missing PostProcess files. The sample’s Data/Postprocess directory is incorrectly named. I fix case so that it’s Data/PostProcess, as is expected in code. It compiles. It runs, but screen is now entirely black. Narrow down black screen to PostProcess/AutoExposure.xml. Remove line, “effectRenderPath->Append(cache->GetResource(“PostProcess/AutoExposure.xml”));”, and things render properly.
Found old bug stating that AutoExposure doesn’t work properly on OpenGL. Also found code in the OpenGL renderer, which according to comments, fixes this issue. Only other comments seem to imply I should see a white screen, not a black screen. Regardless, appears AutoExposure is still broken on OpenGL.
TL/DR: The sample incorrectly has a directory named, “Postprocess”. It should be, “PostProcess”. Also, AutoExposure.xml seems to be buggy on OpenGL/Linux.
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce GTX 970M/PCIe/SSE2
OpenGL core profile version string: 4.4.0 NVIDIA 364.19
OpenGL core profile shading language version string: 4.40 NVIDIA via Cg compiler
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
Running on: 4.2.0-42-lowlatency #49-Ubuntu SMP PREEMPT Tue Jun 28 23:12:17 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
How does one begin debugging the AutoExposure.xml bug?