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defineBoxSpaceInfluence drastically simplified. please hook probeattenuationvalue up to the proper probe inputs. also need to peg down exactly why we needed to feed a baseVal = 0.25 instead of a proper 1.0 unit to avoid the thing casting beyond the defined bounds.

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This commit is contained in:
Azaezel 2019-03-19 11:28:52 -05:00
parent 54a7ffc030
commit 5bcbd0f6c9
1 changed files with 8 additions and 35 deletions
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43
Templates/Full/game/shaders/common/lighting/advanced/reflectionProbeArrayP.hlsl
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@ -71,40 +71,11 @@ float getDistBoxToPoint(float3 pt, float3 extents)
float defineBoxSpaceInfluence(Surface surface, ProbeData probe, float3 wsEyeRay)
{
float3 surfPosLS = mul(probe.worldToLocal, float4(surface.P, 1.0)).xyz;
//float3 boxMinLS = mul(probe.worldToLocal, float4(probe.boxMin, 1.0)).xyz;
//float3 extents = mul(probe.worldToLocal, float4(probe.boxMax, 1.0)).xyz;
float3 extents = float3(1,1,1);//probe.boxMax;
/*float3 boxOuterRange = boxMaxLS;
float3 boxInnerRange = boxOuterRange * 0.5;
float3 localDir = float3(abs(surfPosLS.x), abs(surfPosLS.y), abs(surfPosLS.z));
localDir = (localDir - boxInnerRange) / (boxOuterRange - boxInnerRange);
float contribution = max(localDir.x, max(localDir.y, localDir.z));
return contribution;*/
float transitionDistance = 0.9;
// Calculate contribution
//// Shrink the box so fade out happens within box extents
float3 reducedExtents = extents - float3(transitionDistance, transitionDistance, transitionDistance);
float distToBox = getDistBoxToPoint(surfPosLS * extents, reducedExtents);
float normalizedDistance = distToBox / max(transitionDistance,0.0001);
// If closer than 70% to the probe radius, then full contribution is used.
// For the other 30% we smoothstep and return contribution lower than 1 so other
// reflection probes can be blended.
// smoothstep from 1 to 0.7:
// float t = clamp((x - edge0) / (edge1 - edge0), 0.0, 1.0);
// return t * t * (3.0 - 2.0 * t);
float t = saturate(3.3333 - 3.3333 * normalizedDistance);
float contribution = t * t * (3.0 - 2.0 * t);
return contribution;
float probeattenuationvalue = 0.5; // feed meh
float atten = 1.0-probeattenuationvalue;
float baseVal = 0.25;
float dist = getDistBoxToPoint(surfPosLS,float3(baseVal,baseVal,baseVal));
return saturate(smoothstep(baseVal+0.0001,atten*baseVal,dist));
}
// Box Projected IBL Lighting
@ -277,7 +248,9 @@ float4 main( PFXVertToPix IN ) : SV_TARGET
blendFacSum = 1.0f;
}
#endif
if (probehits>1.0)
//use probehits for sharp cuts when singular,
//blendSum when wanting blend on all edging
if (blendSum>1.0)
{
float invBlendSumWeighted = 1.0f / blendFacSum;
for (i = 0; i < numProbes; ++i)