Stein Tool ein wenig überarbeitet

blight-assets/src/main/resources/MatDefs/Grass.j3md

@@ -9,7 +9,8 @@ MaterialDef Grass {
         Vector2   WindDir      : 0.0 1.0
         Vector3 SunDir     : 0.55 0.80 0.35
         Color   SunColor   : 1.0 1.0 0.95 1.0
-        Float   Wetness    : 0.0
+        Float   Wetness      : 0.0
+        Boolean GammaCorrect : false
     }
 
     Technique {
@@ -28,8 +29,9 @@ MaterialDef Grass {
         }
 
         Defines {
-            HAS_COLORMAP  : ColorMap
-            HAS_NORMALMAP : NormalMap
+            HAS_COLORMAP   : ColorMap
+            HAS_NORMALMAP  : NormalMap
+            GAMMA_CORRECT  : GammaCorrect
         }
     }
 }

blight-assets/src/main/resources/Shaders/Grass.frag

@@ -39,5 +39,9 @@ void main() {
     color.rgb *= (1.0 - 0.18 * m_Wetness);
     color.rgb *= lit;
     float shine = pow(diffuse, 12.0) * m_Wetness * 0.25;
-    outFragColor = vec4(color.rgb + vec3(shine), color.a);
+    vec3 result = color.rgb + vec3(shine);
+#ifdef GAMMA_CORRECT
+    result = pow(max(result, vec3(0.0)), vec3(1.0 / 2.2));
+#endif
+    outFragColor = vec4(result, color.a);
 }