diff --git a/data/__internal/shaders/SimpleForward/SimpleForward.frag.glsl b/data/__internal/shaders/SimpleForward/SimpleForward.frag.glsl
index 6000e5d..a809b61 100644
--- a/data/__internal/shaders/SimpleForward/SimpleForward.frag.glsl
+++ b/data/__internal/shaders/SimpleForward/SimpleForward.frag.glsl
@@ -4,6 +4,8 @@ in vec3 eyeNormal;
 in vec3 eyePosition;
 in vec2 texCoord;
 
+uniform float opacity;
+
 /*
  * Diffuse
  */
@@ -32,7 +34,7 @@ void main()
     vec3 N = normalize(eyeNormal);
     
     vec4 diffuseColor = diffuse(uv);
-    float alpha = diffuseColor.a;
+    float alpha = diffuseColor.a * opacity;
     
     fragColor = vec4(diffuseColor.rgb, alpha);
 }
diff --git a/src/dagon/render/simple/shaders/simpleforward.d b/src/dagon/render/simple/shaders/simpleforward.d
index b1210c6..003bf75 100644
--- a/src/dagon/render/simple/shaders/simpleforward.d
+++ b/src/dagon/render/simple/shaders/simpleforward.d
@@ -1,5 +1,5 @@
 /*
-Copyright (c) 2024 Timur Gafarov
+Copyright (c) 2024-2025 Timur Gafarov
 
 Boost Software License - Version 1.0 - August 17th, 2003
 Permission is hereby granted, free of charge, to any person or organization
@@ -73,7 +73,7 @@ class SimpleForwardShader: Shader
         setParameter("normalMatrix", state.normalMatrix);
         
         setParameter("opacity", mat.opacity * state.opacity);
-        
+        setParameter("shadeless", mat.shadeless);
         setParameter("textureScale", mat.textureScale);
         
         // Diffuse