houdini 17.5, mantra render, cloud with cloud material renders fine in render view, but renders white in render to disk. I can even save the render view image also as an exr and it looks correct. Rendering same out node and camera. See image.
Thank you! That was exactly the problem. 1 light had a shadow set to depth map instead of raytrace. I changed it to raytrace shadows and now it is good. You saved me a lot of headache. thanks!