Rendering problem -- output images too dark?
I am trying to replicate the rendering shown in the MatSynth paper, using the provided scripts and Blender 4.0.1 on Windows 11. Rendering successfully produces images that appear to incorporate information from all of the input material textures, but the final image is very dark and most of the albedo color information is lost (except in the brightest areas of the diffuse pass).
As an example, here is test/acg_painted_bricks_002:
albedo
diffuse render
glossy render
final composite
Is this a known issue someone has encountered before, or if not, how can I troubleshoot the problem?
I think I found my issue, the rendering script was loading height instead of displacement due to a mistake in my dataset creation script. Manually applying height_factor and height_mean from metadata.json in Blender to the Displacement fixes the rendered image.