summaryrefslogtreecommitdiff
path: root/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
diff options
context:
space:
mode:
Diffstat (limited to 'indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl')
-rw-r--r--indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl13
1 files changed, 12 insertions, 1 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
index 022bcbabca..2b6428963d 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
@@ -132,7 +132,18 @@ vec4 texture2DLodAmbient(sampler2D projectionMap, vec2 tc, float lod)
}
-vec4 getPosition(vec2 pos_screen);
+vec4 getPosition(vec2 pos_screen)
+{
+ float depth = texture2DRect(depthMap, pos_screen.xy).r;
+ vec2 sc = pos_screen.xy*2.0;
+ sc /= screen_res;
+ sc -= vec2(1.0,1.0);
+ vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0);
+ vec4 pos = inv_proj * ndc;
+ pos /= pos.w;
+ pos.w = 1.0;
+ return pos;
+}
void main()
{