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authorXiaohong Bao <bao@lindenlab.com>2013-01-25 17:15:07 -0700
committerXiaohong Bao <bao@lindenlab.com>2013-01-25 17:15:07 -0700
commit5ee3071e85de80cd37cc95c51dee5c497957ff9f (patch)
tree57152dfc9f4e71013262727bad62d97e59b53365 /indra/newview/app_settings/shaders/class1/interface/twotexturecompareF.glsl
parentd93fe6c4353a6501af2704408d2921181fea6b75 (diff)
parent3660f8b632d1288cefeeff66c3b62522b4bbacbc (diff)
Automated merge with ssh://hg.lindenlab.com/richard/viewer-interesting
Diffstat (limited to 'indra/newview/app_settings/shaders/class1/interface/twotexturecompareF.glsl')
-rw-r--r--indra/newview/app_settings/shaders/class1/interface/twotexturecompareF.glsl17
1 files changed, 17 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class1/interface/twotexturecompareF.glsl b/indra/newview/app_settings/shaders/class1/interface/twotexturecompareF.glsl
index 050114b37e..6eeb2596b2 100644
--- a/indra/newview/app_settings/shaders/class1/interface/twotexturecompareF.glsl
+++ b/indra/newview/app_settings/shaders/class1/interface/twotexturecompareF.glsl
@@ -31,6 +31,10 @@ out vec4 frag_color;
uniform sampler2D tex0;
uniform sampler2D tex1;
+uniform sampler2D dither_tex;
+uniform float dither_scale;
+uniform float dither_scale_s;
+uniform float dither_scale_t;
VARYING vec2 vary_texcoord0;
VARYING vec2 vary_texcoord1;
@@ -38,4 +42,17 @@ VARYING vec2 vary_texcoord1;
void main()
{
frag_color = abs(texture2D(tex0, vary_texcoord0.xy) - texture2D(tex1, vary_texcoord0.xy));
+
+ vec2 dither_coord;
+ dither_coord[0] = vary_texcoord0[0] * dither_scale_s;
+ dither_coord[1] = vary_texcoord0[1] * dither_scale_t;
+ vec4 dither_vec = texture(dither_tex, dither_coord.xy);
+
+ for(int i = 0; i < 3; i++)
+ {
+ if(frag_color[i] < dither_vec[i] * dither_scale)
+ {
+ frag_color[i] = 0.f;
+ }
+ }
}