smooth out material roughness transitions from 0.0 to 1.0

erichlof · Nov 30, 2024 · f19a672 · f19a672
1 parent f712162
commit f19a672
Showing 1 changed file with 5 additions and 5 deletions.
diff --git a/shaders/Material_Roughness_Fragment.glsl b/shaders/Material_Roughness_Fragment.glsl
@@ -439,7 +439,7 @@ vec3 CalculateRadiance( out vec3 objectNormal, out vec3 objectColor, out float o
 			{
 				mask *= 1.1;
 				rayDirection = reflect(rayDirection, nl); // reflect ray from metal surface
-				rayDirection = randomDirectionInSpecularLobe(rayDirection, hitRoughness == 0.1 ? 0.2 : hitRoughness * 0.8);
+				rayDirection = randomDirectionInSpecularLobe(rayDirection, hitRoughness == 0.1 ? 0.25 : hitRoughness * 0.8);
 				rayOrigin = x + nl * uEPS_intersect;
 				continue;
 			}
@@ -489,7 +489,7 @@ vec3 CalculateRadiance( out vec3 objectNormal, out vec3 objectColor, out float o
 			{
 				reflectionMask = mask * Re;
 				reflectionRayDirection = reflect(rayDirection, nl); // reflect ray from surface
-				reflectionRayDirection = randomDirectionInSpecularLobe(reflectionRayDirection, hitRoughness * 0.9);
+				reflectionRayDirection = randomDirectionInSpecularLobe(reflectionRayDirection, hitRoughness * 0.8);
 				reflectionRayOrigin = x + nl * uEPS_intersect;
 				willNeedReflectionRay = TRUE;
 			}
@@ -505,7 +505,7 @@ vec3 CalculateRadiance( out vec3 objectNormal, out vec3 objectColor, out float o
 			mask *= Tr;
 
 			rayDirection = refract(rayDirection, nl, ratioIoR);
-			rayDirection = randomDirectionInSpecularLobe(rayDirection, hitRoughness * 0.5);
+			rayDirection = randomDirectionInSpecularLobe(rayDirection, hitRoughness * 0.4);
 			rayOrigin = x - nl * uEPS_intersect;
 
 			if (diffuseCount == 1 && isReflectionTime == FALSE)
@@ -526,7 +526,7 @@ vec3 CalculateRadiance( out vec3 objectNormal, out vec3 objectColor, out float o
 			{
 				reflectionMask = mask * Re;
 				reflectionRayDirection = reflect(rayDirection, nl); // reflect ray from surface
-				reflectionRayDirection = randomDirectionInSpecularLobe(reflectionRayDirection, hitRoughness * 0.9);
+				reflectionRayDirection = randomDirectionInSpecularLobe(reflectionRayDirection, hitRoughness * 0.8);
 				reflectionRayOrigin = x + nl * uEPS_intersect;
 				willNeedReflectionRay = TRUE;
 			}
@@ -582,7 +582,7 @@ vec3 CalculateRadiance( out vec3 objectNormal, out vec3 objectColor, out float o
 			mask *= hitColor;
 
 			rayDirection = reflect(rayDirection, nl); // reflect ray from metal surface
-			rayDirection = randomDirectionInSpecularLobe(rayDirection, hitRoughness * 0.9);
+			rayDirection = randomDirectionInSpecularLobe(rayDirection, hitRoughness == 0.1 ? 0.25 : hitRoughness * 0.8);
 			rayOrigin = x + nl * uEPS_intersect;
 			continue;