Tests: enable bake and shader raytracing tests for OptiX

These are now supported and so can be tested.

Also refactor the code a bit to move Cycles specific blacklist out of generic
render test code.

tests/python/cycles_render_tests.py

@@ -9,6 +9,53 @@ import subprocess
 import sys
 from pathlib import Path
 
+# List of .blend files that are known to be failing and are not ready to be
+# tested, or that only make sense on some devices. Accepts regular expressions.
+BLACKLIST_OSL = [
+    # OSL only supported on CPU.
+    '.*_osl.blend',
+    'osl_.*.blend',
+]
+
+BLACKLIST_OPTIX = [
+    # No branched path on Optix.
+    'T53854.blend',
+    'T50164.blend',
+    'portal.blend',
+    'denoise_sss.blend',
+    'denoise_passes.blend',
+    'distant_light.blend',
+    'aov_position.blend',
+    'subsurface_branched_path.blend',
+    'T43865.blend',
+]
+
+BLACKLIST_GPU = [
+    # Missing equiangular sampling on GPU.
+    'area_light.blend',
+    'denoise_hair.blend',
+    'point_density_.*.blend',
+    'point_light.blend',
+    'shadow_catcher_bpt_.*.blend',
+    'sphere_light.blend',
+    'spot_light.blend',
+    'T48346.blend',
+    'world_volume.blend',
+    # Uninvestigated differences with GPU.
+    'image_log.blend',
+    'subsurface_behind_glass_branched.blend',
+    'T40964.blend',
+    'T45609.blend',
+    'T48860.blend',
+    'smoke_color.blend',
+    'bevel_mblur.blend',
+    # Inconsistency between Embree and Hair primitive on GPU.
+    'hair_basemesh_intercept.blend',
+    'hair_instancer_uv.blend',
+    'hair_particle_random.blend',
+    'principled_hair_.*.blend',
+    'transparent_shadow_hair.*.blend',
+]
 
 def get_arguments(filepath, output_filepath):
     dirname = os.path.dirname(filepath)
@@ -64,8 +111,15 @@ def main():
     output_dir = args.outdir[0]
     device = args.device[0]
 
+    blacklist = []
+    if device != 'CPU':
+        blacklist += BLACKLIST_GPU
+        blacklist += BLACKLIST_OSL
+    if device == 'OPTIX':
+        blacklist += BLACKLIST_OPTIX
+
     from modules import render_report
-    report = render_report.Report('Cycles', output_dir, idiff, device)
+    report = render_report.Report('Cycles', output_dir, idiff, device, blacklist)
     report.set_pixelated(True)
     report.set_reference_dir("cycles_renders")
     if device == 'CPU':