Update shadowmaps at half framerate

m4nu3lf · Nov 1, 2021 · f2382a7 · f2382a7
1 parent d5adb9e
commit f2382a7
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Showing 2 changed files with 14 additions and 4 deletions.
diff --git a/servers/visual/visual_server_scene.cpp b/servers/visual/visual_server_scene.cpp
@@ -2641,6 +2641,8 @@ void VisualServerScene::_prepare_scene(const Transform p_cam_transform, const Ca
 	RID *directional_light_ptr = &light_instance_cull_result[light_cull_count];
 	directional_light_count = 0;
 
+	update_shadows = !update_shadows;
+
 	// directional lights
 	{
 		Instance **lights_with_shadow = (Instance **)alloca(sizeof(Instance *) * scenario->directional_lights.size());
@@ -2668,14 +2670,18 @@ void VisualServerScene::_prepare_scene(const Transform p_cam_transform, const Ca
 			}
 		}
 
-		VSG::scene_render->set_directional_shadow_count(directional_shadow_count);
+		if(update_shadows) {
+
+			VSG::scene_render->set_directional_shadow_count(directional_shadow_count);
 
-		for (int i = 0; i < directional_shadow_count; i++) {
-			_light_instance_update_shadow(lights_with_shadow[i], p_cam_transform, p_cam_projection, p_cam_orthogonal, p_shadow_atlas, scenario);
+			for (int i = 0; i < directional_shadow_count; i++) {
+				_light_instance_update_shadow(lights_with_shadow[i], p_cam_transform, p_cam_projection, p_cam_orthogonal, p_shadow_atlas, scenario);
+			}
 		}
 	}
 
-	{ //setup shadow maps
+
+	if (update_shadows) { //setup shadow maps
 
 		//SortArray<Instance*,_InstanceLightsort> sorter;
 		//sorter.sort(light_cull_result,light_cull_count);

diff --git a/servers/visual/visual_server_scene.h b/servers/visual/visual_server_scene.h
@@ -31,6 +31,7 @@
 #ifndef VISUALSERVERSCENE_H
 #define VISUALSERVERSCENE_H
 
+#include "core/math/transform.h"
 #include "servers/visual/rasterizer.h"
 
 #include "core/math/bvh.h"
@@ -709,6 +710,9 @@ class VisualServerScene {
 	void render_camera(Ref<ARVRInterface> &p_interface, ARVRInterface::Eyes p_eye, RID p_camera, RID p_scenario, Size2 p_viewport_size, RID p_shadow_atlas);
 	void update_dirty_instances();
 
+	bool update_shadows = true;
+	Transform shadow_cam_transform;
+
 	//probes
 	struct GIProbeDataHeader {
 		uint32_t version;