Change the roughness limiter constants to perform better.

Use the roughness  amount and roughness constants from Filament.

Author: fire

doc/classes/ProjectSettings.xml

@@ -1855,7 +1855,7 @@
 			Enables Temporal Anti-Aliasing for the default screen [Viewport]. TAA works by jittering the camera and accumulating the images of the last rendered frames, motion vector rendering is used to account for camera and object motion. Enabling TAA can make the image blurrier, which is partially counteracted by automatically using a negative mipmap LOD bias (see [member rendering/textures/default_filters/texture_mipmap_bias]).
 			[b]Note:[/b] The implementation is not complete yet, some visual instances such as particles and skinned meshes may show artifacts.
 		</member>
-		<member name="rendering/anti_aliasing/screen_space_roughness_limiter/amount" type="float" setter="" getter="" default="0.25">
+		<member name="rendering/anti_aliasing/screen_space_roughness_limiter/amount" type="float" setter="" getter="" default="0.159155">
 		</member>
 		<member name="rendering/anti_aliasing/screen_space_roughness_limiter/enabled" type="bool" setter="" getter="" default="true">
 		</member>

servers/rendering_server.cpp

@@ -2948,7 +2948,7 @@ void RenderingServer::init() {
 	ProjectSettings::get_singleton()->set_custom_property_info("rendering/environment/ssil/fadeout_to", PropertyInfo(Variant::FLOAT, "rendering/environment/ssil/fadeout_to", PROPERTY_HINT_RANGE, "64,65536,0.1,or_greater"));
 
 	GLOBAL_DEF("rendering/anti_aliasing/screen_space_roughness_limiter/enabled", true);
-	GLOBAL_DEF("rendering/anti_aliasing/screen_space_roughness_limiter/amount", 0.25);
+	GLOBAL_DEF("rendering/anti_aliasing/screen_space_roughness_limiter/amount", 0.15915494);
 	GLOBAL_DEF("rendering/anti_aliasing/screen_space_roughness_limiter/limit", 0.18);
 	ProjectSettings::get_singleton()->set_custom_property_info("rendering/anti_aliasing/screen_space_roughness_limiter/amount", PropertyInfo(Variant::FLOAT, "rendering/anti_aliasing/screen_space_roughness_limiter/amount", PROPERTY_HINT_RANGE, "0.01,4.0,0.01"));
 	ProjectSettings::get_singleton()->set_custom_property_info("rendering/anti_aliasing/screen_space_roughness_limiter/limit", PropertyInfo(Variant::FLOAT, "rendering/anti_aliasing/screen_space_roughness_limiter/limit", PROPERTY_HINT_RANGE, "0.01,1.0,0.01"));