SHADER

shader/includes/reflections.gdshaderinc

@@ -0,0 +1,17 @@
+group_uniforms Reflections;
+uniform float metallic : hint_range(0,1) = 0.0;
+uniform float roughness : hint_range(0,1) = 1.0;
+uniform sampler2D texture_surface : hint_default_white;
+group_uniforms;
+
+struct Surface {
+	float metallic;
+	float roughness;
+};
+
+Surface reflections_fragment(vec2 uv) {
+	return Surface(
+		metallic * texture(texture_surface, uv).r,
+		roughness * texture(texture_surface, uv).g
+	);
+}