From b5ecd3865728e048be8bf394fc8d1a06a317d88f Mon Sep 17 00:00:00 2001 From: Dave Parks Date: Tue, 7 May 2013 17:11:47 -0500 Subject: Fix for bad light map generation/sampling. --- .../app_settings/shaders/class1/deferred/blurLightF.glsl | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'indra/newview/app_settings/shaders/class1/deferred') diff --git a/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl index f400eb7a5b..c030c23515 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl @@ -64,11 +64,23 @@ vec4 getPosition(vec2 pos_screen) return pos; } +vec3 decode_normal (vec2 enc) +{ + vec2 fenc = enc*4-2; + float f = dot(fenc,fenc); + float g = sqrt(1-f/4); + vec3 n; + n.xy = fenc*g; + n.z = 1-f/2; + return n; +} + void main() { vec2 tc = vary_fragcoord.xy; vec3 norm = texture2DRect(normalMap, tc).xyz; - norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm + norm = decode_normal(norm.xy); // unpack norm + vec3 pos = getPosition(tc).xyz; vec4 ccol = texture2DRect(lightMap, tc).rgba; -- cgit v1.2.3