1 files changed, 4 insertions, 3 deletions
diff --git a/resources/shaders/variable_layer_height.vs b/resources/shaders/variable_layer_height.vs
index 2c918c0d4..9763859d0 100644
--- a/resources/shaders/variable_layer_height.vs
+++ b/resources/shaders/variable_layer_height.vs
@@ -14,6 +14,8 @@ const vec3 LIGHT_FRONT_DIR = vec3(0.6985074, 0.1397015, 0.6985074);
 
 #define INTENSITY_AMBIENT    0.3
 
+uniform mat4 volume_world_matrix;
+
 // x = tainted, y = specular;
 varying vec2 intensity;
 
@@ -38,9 +40,8 @@ void main()
     NdotL = max(dot(normal, LIGHT_FRONT_DIR), 0.0);
     
     intensity.x += NdotL * LIGHT_FRONT_DIFFUSE;
-    
-    // Scaled to widths of the Z texture.
-    object_z = gl_Vertex.z;
 
+    // Scaled to widths of the Z texture.
+    object_z = (volume_world_matrix * gl_Vertex).z;
     gl_Position = ftransform();
 }