SH-1682 Full integration if indexed texture rendering to improve batch size.

1 files changed, 28 insertions, 2 deletions

diff --git a/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightWaterF.glsl b/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightWaterF.glsl
index 3d46c8d874..37e33059a6 100644
--- a/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightWaterF.glsl
+++ b/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightWaterF.glsl
@@ -7,14 +7,40 @@
  
 #version 120
 
-uniform sampler2D diffuseMap;
+uniform sampler2D tex0;
+uniform sampler2D tex1;
+uniform sampler2D tex2;
+uniform sampler2D tex3;
+uniform sampler2D tex4;
+uniform sampler2D tex5;
+uniform sampler2D tex6;
+uniform sampler2D tex7;
+
+varying float vary_texture_index;
+
+vec4 diffuseLookup(vec2 texcoord)
+{
+	switch (int(vary_texture_index+0.25))
+	{
+		case 0: return texture2D(tex0, texcoord);
+		case 1: return texture2D(tex1, texcoord);
+		case 2: return texture2D(tex2, texcoord);
+		case 3: return texture2D(tex3, texcoord);
+		case 4: return texture2D(tex4, texcoord);
+		case 5: return texture2D(tex5, texcoord);
+		case 6: return texture2D(tex6, texcoord);
+		case 7: return texture2D(tex7, texcoord);
+	}
+
+	return vec4(0,0,0,0);
+}
 
 vec3 fullbrightAtmosTransport(vec3 light);
 vec4 applyWaterFog(vec4 color);
 
 void fullbright_lighting_water()
 {
-	vec4 color = texture2D(diffuseMap, gl_TexCoord[0].xy) * gl_Color;
+	vec4 color = diffuseLookup(gl_TexCoord[0].xy) * gl_Color;
 
 	color.rgb = fullbrightAtmosTransport(color.rgb);