From dae03382bf1e3abfcc33417c611b9194c7783b3f Mon Sep 17 00:00:00 2001
From: RealBadAngel <mk@realbadangel.pl>
Date: Mon, 9 Dec 2013 13:25:43 +0100
Subject: Optimize shaders code. Add settings at compile time.

---
 client/shaders/liquids_shader/opengl_fragment.glsl | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

(limited to 'client/shaders/liquids_shader/opengl_fragment.glsl')

diff --git a/client/shaders/liquids_shader/opengl_fragment.glsl b/client/shaders/liquids_shader/opengl_fragment.glsl
index b9156d06e..cab8d8e01 100644
--- a/client/shaders/liquids_shader/opengl_fragment.glsl
+++ b/client/shaders/liquids_shader/opengl_fragment.glsl
@@ -1,11 +1,7 @@
-#version 120
-
 uniform sampler2D baseTexture;
 uniform sampler2D normalTexture;
 uniform sampler2D useNormalmap;
 
-uniform float enableBumpmapping;
-
 uniform vec4 skyBgColor;
 uniform float fogDistance;
 uniform vec3 eyePosition;
@@ -19,12 +15,13 @@ void main (void)
 {
 	vec3 color;
 	vec2 uv = gl_TexCoord[0].st;
-	
-#ifdef NORMALS
+
+#ifdef USE_NORMALMAPS
 	float use_normalmap = texture2D(useNormalmap,vec2(1.0,1.0)).r;
-	float enable_bumpmapping = enableBumpmapping;
+#endif
 
-	if ((enable_bumpmapping == 1.0) && (use_normalmap > 0.0)) {
+#ifdef ENABLE_BUMPMAPPING
+	if (use_normalmap > 0.0) {
 		vec3 base = texture2D(baseTexture, uv).rgb;
 		vec3 vVec = normalize(eyeVec);
 		vec3 bump = normalize(texture2D(normalTexture, uv).xyz * 2.0 - 1.0);
@@ -53,5 +50,5 @@ void main (void)
 		float d = max(0.0, min(vPosition.z / fogDistance * 1.5 - 0.6, 1.0));
 		alpha = mix(alpha, 0.0, d);
 	}
-    gl_FragColor = vec4(col.r, col.g, col.b, alpha); 
+    gl_FragColor = vec4(col.r, col.g, col.b, alpha);
 }
-- 
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