diff options
author | Tofu Linden <tofu.linden@lindenlab.com> | 2010-05-09 15:02:10 +0100 |
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committer | Tofu Linden <tofu.linden@lindenlab.com> | 2010-05-09 15:02:10 +0100 |
commit | 12d3ba4baee93bcb024fbeee0d6f05df6d02935f (patch) | |
tree | 890058e8315e803a0d2f740a9fe4bddcd53706f5 /indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl | |
parent | 08755849ab126c13580f3af38721f83cb5ce01ce (diff) |
Rejig deferred normal-map packing a little, to double its accuracy for free.
Diffstat (limited to 'indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl')
-rw-r--r-- | indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl index bc84720b86..fd6ae2b960 100644 --- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl +++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl @@ -258,7 +258,8 @@ void main() vec2 tc = vary_fragcoord.xy; float depth = texture2DRect(depthMap, tc.xy).a; vec3 pos = getPosition_d(tc, depth).xyz; - vec3 norm = texture2DRect(normalMap, tc).xyz*2.0-1.0; + vec3 norm = texture2DRect(normalMap, tc).xyz; + norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm //vec3 nz = texture2D(noiseMap, vary_fragcoord.xy/128.0).xyz; float da = max(dot(norm.xyz, vary_light.xyz), 0.0); @@ -310,7 +311,9 @@ void main() float refdepth = texture2DRect(depthMap, ref2d).a; vec3 refpos = getPosition_d(ref2d, refdepth).xyz; float refshad = texture2DRect(lightMap, ref2d).r; - vec3 refn = normalize(texture2DRect(normalMap, ref2d).rgb * 2.0 - 1.0); + vec3 refn = texture2DRect(normalMap, ref2d).rgb; + refn = vec3((refn.xy-0.5)*2.0,refn.z); // unpack norm + refn = normalize(refn); // figure out how appropriate our guess actually was float refapprop = max(0.0, dot(-refnorm, normalize(pos - refpos))); // darken reflections from points which face away from the reflected ray - our guess was a back-face |