1 files changed, 16 insertions, 0 deletions

diff --git a/linden/indra/newview/app_settings/shaders/class3/environment/scatterV.glsl b/linden/indra/newview/app_settings/shaders/class3/environment/scatterV.glsl
new file mode 100644
index 0000000..c9ebd9e
--- /dev/null
+++ b/linden/indra/newview/app_settings/shaders/class3/environment/scatterV.glsl
@@ -0,0 +1,16 @@
+
+vec2 getScatterCoord(vec3 viewVec, vec3 lightDir)
+{
+   vec2 scatterCoord;
+   scatterCoord.x = length(viewVec);
+   vec3 normVec = normalize(viewVec);
+   scatterCoord.y = dot(normVec, lightDir)*0.5 + 0.5;   
+   scatterCoord.x = scatterCoord.x / gl_Fog.end;
+   scatterCoord.x *= scatterCoord.x; // HACK!! Remove this when we can push the view distance farther out
+   return scatterCoord;
+}
+
+void default_scatter(vec3 viewVec, vec3 lightDir)
+{
+        gl_TexCoord[5].xy = getScatterCoord(viewVec, lightDir);
+}