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FIX VWR-24509 Fix SSAO speckling artifacts at distance, re-enable distant SSAO 

(transplanted from ef938dea0504b12fcf802f38fcf5457ba566c468)
meow-7.2.2
Tofu Buzzard 2011-01-16 13:36:44 +00:00
parent a6e8026de0
commit 4f06f3dae6
2 changed files with 6 additions and 2 deletions
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1
doc/contributions.txt
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@ -752,6 +752,7 @@ tiamat bingyi
Tofu Buzzard
CTS-411
STORM-546
VWR-24509
TraductoresAnonimos Alter
CT-324
Tue Torok

7
indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl
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@ -51,6 +51,9 @@ void main()
vec2 defined_weight = kern[0].xy; // special case the first (centre) sample's weight in the blur; we have to sample it anyway so we get it for 'free'
vec4 col = defined_weight.xyxx * ccol;
// relax tolerance according to distance to avoid speckling artifacts, as angles and distances are a lot more abrupt within a small screen area at larger distances
float pointplanedist_tolerance_pow2 = pos.z*pos.z*0.00005;
// perturb sampling origin slightly in screen-space to hide edge-ghosting artifacts where smoothing radius is quite large
tc += ( (int(tc.x+tc.y)%2 - 0.5) * kern[1].z * dlt * 0.5 );
@ -59,7 +62,7 @@ void main()
vec2 samptc = tc + kern[i].z*dlt;
vec3 samppos = getPosition(samptc).xyz;
float d = dot(norm.xyz, samppos.xyz-pos.xyz);// dist from plane
if (d*d <= 0.003)
if (d*d <= pointplanedist_tolerance_pow2)
{
col += texture2DRect(lightMap, samptc)*kern[i].xyxx;
defined_weight += kern[i].xy;
@ -70,7 +73,7 @@ void main()
vec2 samptc = tc - kern[i].z*dlt;
vec3 samppos = getPosition(samptc).xyz;
float d = dot(norm.xyz, samppos.xyz-pos.xyz);// dist from plane
if (d*d <= 0.003)
if (d*d <= pointplanedist_tolerance_pow2)
{
col += texture2DRect(lightMap, samptc)*kern[i].xyxx;
defined_weight += kern[i].xy;