From b9cfc74f292484a30ebb57c16f1a6a05a97a5134 Mon Sep 17 00:00:00 2001
From: Hugo Locurcio <hugo.locurcio@hugo.pro>
Date: Sun, 6 Feb 2022 15:01:25 +0100
Subject: Decrease the default number of SDFGI cascades to 4
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This improves rendering performance noticeably, especially when the
camera moves fast.

On a medium-sized test scene on a GTX 1080 in 2560×1440, going
from 6 to cascades saves 0.5 ms of frame time while looking visually
identical (as most of the scene fits within the 4 cascades).
---
 doc/classes/Environment.xml                                   | 4 ++--
 scene/resources/environment.h                                 | 2 +-
 servers/rendering/renderer_rd/renderer_scene_environment_rd.h | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/doc/classes/Environment.xml b/doc/classes/Environment.xml
index c8c0494378..1517aa2a2b 100644
--- a/doc/classes/Environment.xml
+++ b/doc/classes/Environment.xml
@@ -175,7 +175,7 @@
 		</member>
 		<member name="sdfgi_cascade0_distance" type="float" setter="set_sdfgi_cascade0_distance" getter="get_sdfgi_cascade0_distance" default="12.8">
 		</member>
-		<member name="sdfgi_cascades" type="int" setter="set_sdfgi_cascades" getter="get_sdfgi_cascades" default="6">
+		<member name="sdfgi_cascades" type="int" setter="set_sdfgi_cascades" getter="get_sdfgi_cascades" default="4">
 			The number of cascades to use for SDFGI (between 1 and 8). A higher number of cascades allows displaying SDFGI further away while preserving detail up close, at the cost of performance. When using SDFGI on small-scale levels, [member sdfgi_cascades] can often be decreased between [code]1[/code] and [code]4[/code] to improve performance.
 		</member>
 		<member name="sdfgi_enabled" type="bool" setter="set_sdfgi_enabled" getter="is_sdfgi_enabled" default="false">
@@ -185,7 +185,7 @@
 		</member>
 		<member name="sdfgi_energy" type="float" setter="set_sdfgi_energy" getter="get_sdfgi_energy" default="1.0">
 		</member>
-		<member name="sdfgi_max_distance" type="float" setter="set_sdfgi_max_distance" getter="get_sdfgi_max_distance" default="819.2">
+		<member name="sdfgi_max_distance" type="float" setter="set_sdfgi_max_distance" getter="get_sdfgi_max_distance" default="204.8">
 		</member>
 		<member name="sdfgi_min_cell_size" type="float" setter="set_sdfgi_min_cell_size" getter="get_sdfgi_min_cell_size" default="0.2">
 		</member>
diff --git a/scene/resources/environment.h b/scene/resources/environment.h
index b04723a221..cc20f59698 100644
--- a/scene/resources/environment.h
+++ b/scene/resources/environment.h
@@ -147,7 +147,7 @@ private:
 
 	// SDFGI
 	bool sdfgi_enabled = false;
-	int sdfgi_cascades = 6;
+	int sdfgi_cascades = 4;
 	float sdfgi_min_cell_size = 0.2;
 	SDFGIYScale sdfgi_y_scale = SDFGI_Y_SCALE_DISABLED;
 	bool sdfgi_use_occlusion = false;
diff --git a/servers/rendering/renderer_rd/renderer_scene_environment_rd.h b/servers/rendering/renderer_rd/renderer_scene_environment_rd.h
index ed26fd467b..0c595e24e3 100644
--- a/servers/rendering/renderer_rd/renderer_scene_environment_rd.h
+++ b/servers/rendering/renderer_rd/renderer_scene_environment_rd.h
@@ -135,7 +135,7 @@ public:
 
 	/// SDFGI
 	bool sdfgi_enabled = false;
-	int sdfgi_cascades = 6;
+	int sdfgi_cascades = 4;
 	float sdfgi_min_cell_size = 0.2;
 	bool sdfgi_use_occlusion = false;
 	float sdfgi_bounce_feedback = 0.0;
-- 
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