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authorDave Parks <davep@lindenlab.com>2013-05-17 13:54:58 -0500
committerDave Parks <davep@lindenlab.com>2013-05-17 13:54:58 -0500
commit88a42cd453b19e66551a36d635981da5aaa04933 (patch)
tree23e2172367f957cb8905e04fcdb32403f27c5e56 /indra/newview/app_settings/shaders/class2/deferred
parent559934705fd766430ccdd4b4e41e26a277f63637 (diff)
NORSPEC-187 Add directionality to ambient lighting.
Diffstat (limited to 'indra/newview/app_settings/shaders/class2/deferred')
-rwxr-xr-xindra/newview/app_settings/shaders/class2/deferred/alphaV.glsl9
1 files changed, 9 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
index 127c1709b8..13c6ffc607 100755
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
@@ -83,6 +83,8 @@ uniform vec3 light_direction[8];
uniform vec3 light_attenuation[8];
uniform vec3 light_diffuse[8];
+uniform vec3 sun_dir;
+
vec3 calcDirectionalLight(vec3 n, vec3 l)
{
float a = max(dot(n,l),0.0);
@@ -190,6 +192,13 @@ void main()
// Add windlight lights
col.rgb = atmosAmbient(col.rgb);
+ float ambient = min(abs(dot(norm.xyz, sun_dir.xyz)), 1.0);
+ ambient *= 0.5;
+ ambient *= ambient;
+ ambient = (1.0-ambient);
+
+ col.rgb *= ambient;
+
vary_directional.rgb = atmosAffectDirectionalLight(1.0f);
vary_ambient = col.rgb*dff;