Tweak default SDFGI settings for better quality

- Enable Read Sky Light to get proper outdoors lighting out of the box.
- Set bounce feedback to 0.5 by default to get a better quality result.
  - Higher values may cause infinite feedback with bright surfaces.
- Increase the number of frames to converge to improve quality
  at the cost of latency. Most scenes are fairly static after all.
- Use 75% Y scale by default as most scenes are not highly vertical.

- Reorder the Y scale enum to go from the lowest Y scale to the highest.
  Also rename the "Disabled" setting to "100%" for clarity.

3 files changed, 8 insertions, 8 deletions

diff --git a/servers/rendering/renderer_rd/renderer_scene_environment_rd.h b/servers/rendering/renderer_rd/renderer_scene_environment_rd.h
index ed26fd467b..db7dd6b63c 100644
--- a/servers/rendering/renderer_rd/renderer_scene_environment_rd.h
+++ b/servers/rendering/renderer_rd/renderer_scene_environment_rd.h
@@ -138,12 +138,12 @@ public:
 	int sdfgi_cascades = 6;
 	float sdfgi_min_cell_size = 0.2;
 	bool sdfgi_use_occlusion = false;
-	float sdfgi_bounce_feedback = 0.0;
-	bool sdfgi_read_sky_light = false;
+	float sdfgi_bounce_feedback = 0.5;
+	bool sdfgi_read_sky_light = true;
 	float sdfgi_energy = 1.0;
 	float sdfgi_normal_bias = 1.1;
 	float sdfgi_probe_bias = 1.1;
-	RS::EnvironmentSDFGIYScale sdfgi_y_scale = RS::ENV_SDFGI_Y_SCALE_DISABLED;
+	RS::EnvironmentSDFGIYScale sdfgi_y_scale = RS::ENV_SDFGI_Y_SCALE_75_PERCENT;
 
 	/// Adjustments
 
diff --git a/servers/rendering/renderer_rd/renderer_scene_gi_rd.cpp b/servers/rendering/renderer_rd/renderer_scene_gi_rd.cpp
index 3069b1c379..cb07c75db4 100644
--- a/servers/rendering/renderer_rd/renderer_scene_gi_rd.cpp
+++ b/servers/rendering/renderer_rd/renderer_scene_gi_rd.cpp
@@ -46,7 +46,7 @@ void RendererSceneGIRD::SDFGI::create(RendererSceneEnvironmentRD *p_env, const V
 	min_cell_size = p_env->sdfgi_min_cell_size;
 	uses_occlusion = p_env->sdfgi_use_occlusion;
 	y_scale_mode = p_env->sdfgi_y_scale;
-	static const float y_scale[3] = { 1.0, 1.5, 2.0 };
+	static const float y_scale[3] = { 2.0, 1.5, 1.0 };
 	y_mult = y_scale[y_scale_mode];
 	cascades.resize(num_cascades);
 	probe_axis_count = SDFGI::PROBE_DIVISOR + 1;
diff --git a/servers/rendering/renderer_rd/renderer_scene_gi_rd.h b/servers/rendering/renderer_rd/renderer_scene_gi_rd.h
index 5e55262798..d8a64bc672 100644
--- a/servers/rendering/renderer_rd/renderer_scene_gi_rd.h
+++ b/servers/rendering/renderer_rd/renderer_scene_gi_rd.h
@@ -504,12 +504,12 @@ public:
 		RID cascades_ubo;
 
 		bool uses_occlusion = false;
-		float bounce_feedback = 0.0;
-		bool reads_sky = false;
+		float bounce_feedback = 0.5;
+		bool reads_sky = true;
 		float energy = 1.0;
 		float normal_bias = 1.1;
 		float probe_bias = 1.1;
-		RS::EnvironmentSDFGIYScale y_scale_mode = RS::ENV_SDFGI_Y_SCALE_DISABLED;
+		RS::EnvironmentSDFGIYScale y_scale_mode = RS::ENV_SDFGI_Y_SCALE_75_PERCENT;
 
 		float y_mult = 1.0;
 
@@ -536,7 +536,7 @@ public:
 	};
 
 	RS::EnvironmentSDFGIRayCount sdfgi_ray_count = RS::ENV_SDFGI_RAY_COUNT_16;
-	RS::EnvironmentSDFGIFramesToConverge sdfgi_frames_to_converge = RS::ENV_SDFGI_CONVERGE_IN_10_FRAMES;
+	RS::EnvironmentSDFGIFramesToConverge sdfgi_frames_to_converge = RS::ENV_SDFGI_CONVERGE_IN_30_FRAMES;
 	RS::EnvironmentSDFGIFramesToUpdateLight sdfgi_frames_to_update_light = RS::ENV_SDFGI_UPDATE_LIGHT_IN_4_FRAMES;
 
 	float sdfgi_solid_cell_ratio = 0.25;