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properly determine probehits via sub-zero values form attenuation returns, skip out on blendings entirely when determining we're only applying 1 or fewer probes to a pixel. apply alpha subtraction in either case in keeping with the countdown notion.

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Azaezel 2019-03-27 10:25:09 -05:00
parent 9b2b87c569
commit 6350e4240b
1 changed files with 13 additions and 17 deletions
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30
Templates/Full/game/shaders/common/lighting/advanced/reflectionProbeArrayP.hlsl
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@ -194,12 +194,14 @@ float4 main(PFXVertToPix IN) : SV_TARGET
if (probes[i].type == 0) //box
{
probes[i].contribution = defineBoxSpaceInfluence(surface, probes[i], IN.wsEyeRay);
probehits++;
if (probes[i].contribution>0.0)
probehits++;
}
else if (probes[i].type == 1) //sphere
{
probes[i].contribution = defineSphereSpaceInfluence(surface, probes[i], IN.wsEyeRay);
probehits++;
if (probes[i].contribution>0.0)
probehits++;
}
probes[i].contribution = max(probes[i].contribution,0);
@ -212,21 +214,16 @@ float4 main(PFXVertToPix IN) : SV_TARGET
// respect constraint B.
// Weight1 = normalized inverted NDF, so we have 1 at center, 0 at boundary
// and respect constraint A.
if (probehits>1.0)
{
for (i = 0; i < numProbes; i++)
{
blendFactor[i] = ((probes[i].contribution / blendSum)) / (probehits - 1);
blendFactor[i] = ((probes[i].contribution / blendSum)) / probehits;
blendFactor[i] *= ((probes[i].contribution) / invBlendSum);
blendFactor[i] = saturate(blendFactor[i]);
blendFacSum += blendFactor[i];
}
}
else
{
blendFactor[i] = probes[i].contribution;
blendFacSum = probes[i].contribution;
}
// Normalize blendVal
#if DEBUGVIZ_ATTENUATION == 0 //this can likely be removed when we fix the above normalization behavior
@ -236,18 +233,17 @@ float4 main(PFXVertToPix IN) : SV_TARGET
}
#endif
if (probehits>1.0)
{
float invBlendSumWeighted = 1.0f / blendFacSum;
for (i = 0; i < numProbes; ++i)
{
blendFactor[i] *= invBlendSumWeighted;
probes[i].contribution = saturate(blendFactor[i]);
alpha -= probes[i].contribution;
probes[i].contribution *= blendFactor[i];
alpha -= probes[i].contribution;
}
}
}
else
alpha -= blendSum;
#if DEBUGVIZ_ATTENUATION == 1
float attenVis = 0;
for (i = 0; i < numProbes; ++i)