Cycles: Add OptiX AI denoiser support

This patch adds support for the OptiX denoiser as an alternative to the existing NLM denoiser in Cycles. It's re-using the same denoising architecture based on tiles and therefore implicitly also works with multiple GPUs.

Reviewed By: sergey

Differential Revision: https://developer.blender.org/D6395

1 files changed, 20 insertions, 0 deletions

diff --git a/intern/cycles/blender/addon/properties.py b/intern/cycles/blender/addon/properties.py
index e09f15b46e8..5f163c2510b 100644
--- a/intern/cycles/blender/addon/properties.py
+++ b/intern/cycles/blender/addon/properties.py
@@ -197,6 +197,12 @@ enum_aov_types = (
     ('COLOR', "Color", "Write a Color pass", 1),
 )
 
+enum_denoising_optix_input_passes= (
+    ('RGB', "Color", "Use only color as input", 1),
+    ('RGB_ALBEDO', "Color + Albedo", "Use color and albedo data as input", 2),
+    ('RGB_ALBEDO_NORMAL', "Color + Albedo + Normal", "Use color, albedo and normal data as input", 3),
+)
+
 class CyclesRenderSettings(bpy.types.PropertyGroup):
 
     device: EnumProperty(
@@ -1279,6 +1285,7 @@ class CyclesRenderLayerSettings(bpy.types.PropertyGroup):
         default=False,
         update=update_render_passes,
     )
+
     use_pass_volume_direct: BoolProperty(
         name="Volume Direct",
         description="Deliver direct volumetric scattering pass",
@@ -1298,6 +1305,12 @@ class CyclesRenderLayerSettings(bpy.types.PropertyGroup):
         default=False,
         update=update_render_passes,
     )
+    use_optix_denoising: BoolProperty(
+        name="Use OptiX AI Denoising",
+        description="Denoise the rendered image with the OptiX AI denoiser",
+        default=False,
+        update=update_render_passes,
+    )
     denoising_diffuse_direct: BoolProperty(
         name="Diffuse Direct",
         description="Denoise the direct diffuse lighting",
@@ -1374,6 +1387,13 @@ class CyclesRenderLayerSettings(bpy.types.PropertyGroup):
         min=0, max=7,
         default=0,
     )
+    denoising_optix_input_passes: EnumProperty(
+        name="Input Passes",
+        description="Controls which passes the OptiX AI denoiser should use as input, which can have different effects on the denoised image",
+        items=enum_denoising_optix_input_passes,
+        default='RGB',
+    )
+
     use_pass_crypto_object: BoolProperty(
         name="Cryptomatte Object",
         description="Render cryptomatte object pass, for isolating objects in compositing",