ability to specify environment lighting brightness

fyrox-impl/src/renderer/light.rs

@@ -419,6 +419,10 @@ impl DeferredLightRenderer {
             property("cameraPosition", &observer.position.translation),
             property("invViewProj", &inv_view_projection),
             property("skyboxLighting", &skybox_lighting),
+            property(
+                "environmentLightingBrightness",
+                &scene.rendering_options.environment_lighting_brightness,
+            ),
         ]);
         let material = RenderMaterial::from([
             binding(

fyrox-impl/src/renderer/shaders/ambient_light.shader

@@ -54,6 +54,7 @@
                 (name: "cameraPosition", kind: Vector3()),
                 (name: "invViewProj", kind: Matrix4()),
                 (name: "skyboxLighting", kind: Bool()),
+                (name: "environmentLightingBrightness", kind: Float()),
             ]),
             binding: 0
         ),
@@ -147,7 +148,7 @@
                         vec4 bakedLighting = texture(bakedLightingTexture, texCoord);
 
                         vec3 irradiance = S_SRGBToLinear(texture(irradianceMap, fragmentNormal)).rgb;
-                        vec3 diffuse = (bakedLighting.rgb + (properties.skyboxLighting ? irradiance : properties.ambientColor.rgb)) * albedo.rgb;
+                        vec3 diffuse = (bakedLighting.rgb + properties.environmentLightingBrightness * (properties.skyboxLighting ? irradiance : properties.ambientColor.rgb)) * albedo.rgb;
 
                         FragColor.rgb = (kD * diffuse + specular) * ambientOcclusion;
                         FragColor.a = bakedLighting.a;

fyrox-impl/src/scene/mod.rs

@@ -215,6 +215,11 @@ pub struct SceneRenderingOptions {
     /// A switch, that allows selecting the source of environment lighting. By default, it is set to
     /// [`EnvironmentLightingSource::SkyBox`].
     pub environment_lighting_source: EnvironmentLightingSource,
+
+    /// Environment lighting brightness. Default is 1.0. Environment lighting will be multiplied
+    /// by this coefficient.
+    #[visit(optional)]
+    pub environment_lighting_brightness: f32,
 }
 
 impl Default for SceneRenderingOptions {
@@ -225,6 +230,7 @@ impl Default for SceneRenderingOptions {
             polygon_rasterization_mode: Default::default(),
             ambient_lighting_color: Color::opaque(100, 100, 100),
             environment_lighting_source: Default::default(),
+            environment_lighting_brightness: 1.0,
         }
     }
 }
@@ -237,6 +243,7 @@ impl Clone for SceneRenderingOptions {
             polygon_rasterization_mode: self.polygon_rasterization_mode,
             ambient_lighting_color: self.ambient_lighting_color,
             environment_lighting_source: self.environment_lighting_source,
+            environment_lighting_brightness: self.environment_lighting_brightness,
         }
     }
 }