From 5539fb3121313f91b6e46d982ef62ff97763d2c2 Mon Sep 17 00:00:00 2001
From: Brecht Van Lommel <brecht@blender.org>
Date: Wed, 13 Jul 2022 15:23:50 +0200
Subject: Cycles: add presets to the Performance panel

With choices Default, Lower Memory and Faster Render. For convenience, and
to help communicate what the various settings do.

Differential Revision: https://developer.blender.org/D15446
---
 intern/cycles/blender/addon/presets.py             | 26 ++++++++++++++++++++++
 intern/cycles/blender/addon/ui.py                  | 10 +++++++++
 .../scripts/presets/cycles/performance/Default.py  | 12 ++++++++++
 .../presets/cycles/performance/Faster_Render.py    | 12 ++++++++++
 .../presets/cycles/performance/Lower_Memory.py     | 12 ++++++++++
 5 files changed, 72 insertions(+)
 create mode 100644 release/scripts/presets/cycles/performance/Default.py
 create mode 100644 release/scripts/presets/cycles/performance/Faster_Render.py
 create mode 100644 release/scripts/presets/cycles/performance/Lower_Memory.py

diff --git a/intern/cycles/blender/addon/presets.py b/intern/cycles/blender/addon/presets.py
index cc6d574da99..e1f08c07eaf 100644
--- a/intern/cycles/blender/addon/presets.py
+++ b/intern/cycles/blender/addon/presets.py
@@ -84,10 +84,36 @@ class AddPresetViewportSampling(AddPresetBase, Operator):
     preset_subdir = "cycles/viewport_sampling"
 
 
+class AddPresetPerformance(AddPresetBase, Operator):
+    '''Add an Performance Preset'''
+    bl_idname = "render.cycles_performance_preset_add"
+    bl_label = "Add Performance Preset"
+    preset_menu = "CYCLES_PT_performance_presets"
+
+    preset_defines = [
+        "render = bpy.context.scene.render"
+        "cycles = bpy.context.scene.cycles"
+    ]
+
+    preset_values = [
+        "render.threads_mode",
+        "render.use_persistent_data",
+        "cycles.debug_use_spatial_splits",
+        "cycles.debug_use_compact_bvh",
+        "cycles.debug_use_hair_bvh",
+        "cycles.debug_bvh_time_steps",
+        "cycles.use_auto_tile",
+        "cycles.tile_size",
+    ]
+
+    preset_subdir = "cycles/performance"
+
+
 classes = (
     AddPresetIntegrator,
     AddPresetSampling,
     AddPresetViewportSampling,
+    AddPresetPerformance,
 )
 
 
diff --git a/intern/cycles/blender/addon/ui.py b/intern/cycles/blender/addon/ui.py
index 09aecb5cb81..3c898d4be73 100644
--- a/intern/cycles/blender/addon/ui.py
+++ b/intern/cycles/blender/addon/ui.py
@@ -43,6 +43,12 @@ class CYCLES_PT_integrator_presets(CyclesPresetPanel):
     preset_add_operator = "render.cycles_integrator_preset_add"
 
 
+class CYCLES_PT_performance_presets(CyclesPresetPanel):
+    bl_label = "Performance Presets"
+    preset_subdir = "cycles/performance"
+    preset_add_operator = "render.cycles_performance_preset_add"
+
+
 class CyclesButtonsPanel:
     bl_space_type = "PROPERTIES"
     bl_region_type = "WINDOW"
@@ -624,6 +630,9 @@ class CYCLES_RENDER_PT_performance(CyclesButtonsPanel, Panel):
     bl_label = "Performance"
     bl_options = {'DEFAULT_CLOSED'}
 
+    def draw_header_preset(self, context):
+        CYCLES_PT_performance_presets.draw_panel_header(self.layout)
+
     def draw(self, context):
         pass
 
@@ -2269,6 +2278,7 @@ classes = (
     CYCLES_PT_sampling_presets,
     CYCLES_PT_viewport_sampling_presets,
     CYCLES_PT_integrator_presets,
+    CYCLES_PT_performance_presets,
     CYCLES_RENDER_PT_sampling,
     CYCLES_RENDER_PT_sampling_viewport,
     CYCLES_RENDER_PT_sampling_viewport_denoise,
diff --git a/release/scripts/presets/cycles/performance/Default.py b/release/scripts/presets/cycles/performance/Default.py
new file mode 100644
index 00000000000..5c25f23eca0
--- /dev/null
+++ b/release/scripts/presets/cycles/performance/Default.py
@@ -0,0 +1,12 @@
+import bpy
+render = bpy.context.scene.render
+cycles = bpy.context.scene.cycles
+
+render.threads_mode = 'AUTO'
+render.use_persistent_data = False
+cycles.debug_use_spatial_splits = False
+cycles.debug_use_compact_bvh = False
+cycles.debug_use_hair_bvh = True
+cycles.debug_bvh_time_steps = 0
+cycles.use_auto_tile = True
+cycles.tile_size = 2048
diff --git a/release/scripts/presets/cycles/performance/Faster_Render.py b/release/scripts/presets/cycles/performance/Faster_Render.py
new file mode 100644
index 00000000000..7f1e3c68f1f
--- /dev/null
+++ b/release/scripts/presets/cycles/performance/Faster_Render.py
@@ -0,0 +1,12 @@
+import bpy
+render = bpy.context.scene.render
+cycles = bpy.context.scene.cycles
+
+render.threads_mode = 'AUTO'
+render.use_persistent_data = True
+cycles.debug_use_spatial_splits = True
+cycles.debug_use_compact_bvh = False
+cycles.debug_use_hair_bvh = True
+cycles.debug_bvh_time_steps = 2
+cycles.use_auto_tile = True
+cycles.tile_size = 2048
diff --git a/release/scripts/presets/cycles/performance/Lower_Memory.py b/release/scripts/presets/cycles/performance/Lower_Memory.py
new file mode 100644
index 00000000000..d1a45f1888d
--- /dev/null
+++ b/release/scripts/presets/cycles/performance/Lower_Memory.py
@@ -0,0 +1,12 @@
+import bpy
+render = bpy.context.scene.render
+cycles = bpy.context.scene.cycles
+
+render.threads_mode = 'AUTO'
+render.use_persistent_data = False
+cycles.debug_use_spatial_splits = False
+cycles.debug_use_compact_bvh = True
+cycles.debug_use_hair_bvh = True
+cycles.debug_bvh_time_steps = 0
+cycles.use_auto_tile = True
+cycles.tile_size = 512
-- 
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