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Add nine point shadow softness support

This commit is contained in:
Jarrod Doyle 2024-10-29 18:13:04 +00:00
parent 99697180cd
commit f6bcce9778
Signed by: Jayrude
GPG Key ID: 38B57B16E7C0ADF7
1 changed files with 25 additions and 4 deletions
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29
KeepersCompound.Lightmapper/LightMapper.cs
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@ -502,13 +502,31 @@ public class LightMapper
bool FivePoint(float offsetScale, out float strength)
{
strength = 0f;
var hit = false;
hit |= TracePixel(light, pos, polyCenter, plane, planeMapper, v2ds, out var centerStrength);
hit |= FourPoint(offsetScale, out strength);
strength = (1.0f - centerWeight) * strength + centerWeight * centerStrength;
return hit;
}
bool NinePoint(float offsetScale, out float strength)
{
var hit = false;
var xOffset = texU / offsetScale;
var yOffset = texV / offsetScale;
hit |= TracePixel(light, pos - xOffset - yOffset, polyCenter, plane, planeMapper, v2ds, out var s1);
hit |= TracePixel(light, pos + xOffset - yOffset, polyCenter, plane, planeMapper, v2ds, out var s2);
hit |= TracePixel(light, pos - xOffset + yOffset, polyCenter, plane, planeMapper, v2ds, out var s3);
hit |= TracePixel(light, pos + xOffset + yOffset, polyCenter, plane, planeMapper, v2ds, out var s4);
hit |= TracePixel(light, pos - xOffset, polyCenter, plane, planeMapper, v2ds, out var s5);
hit |= TracePixel(light, pos + xOffset, polyCenter, plane, planeMapper, v2ds, out var s6);
hit |= TracePixel(light, pos - yOffset, polyCenter, plane, planeMapper, v2ds, out var s7);
hit |= TracePixel(light, pos + yOffset, polyCenter, plane, planeMapper, v2ds, out var s8);
hit |= TracePixel(light, pos, polyCenter, plane, planeMapper, v2ds, out var centerStrength);
strength = (s1 + s2 + s3 + s4 + s5 + s6 + s7 + s8) / 8f;
strength = (1.0f - centerWeight) * strength + centerWeight * centerStrength;
return hit;
}
strength = 0f;
var hit = false;
@ -521,18 +539,21 @@ public class LightMapper
case SoftnessMode.HighFivePoint:
hit = FivePoint(4f, out strength);
break;
case SoftnessMode.HighNinePoint:
hit = NinePoint(4f, out strength);
break;
case SoftnessMode.MediumFourPoint:
hit = FourPoint(8f, out strength);
break;
case SoftnessMode.MediumFivePoint:
hit = FivePoint(8f, out strength);
break;
case SoftnessMode.MediumNinePoint:
hit = NinePoint(8f, out strength);
break;
case SoftnessMode.LowFourPoint:
hit = FourPoint(16f, out strength);
break;
// TODO: Work out how the 8 points are sampled hmm
case SoftnessMode.HighNinePoint:
case SoftnessMode.MediumNinePoint:
case SoftnessMode.Standard:
hit = TracePixel(light, pos, polyCenter, plane, planeMapper, v2ds, out strength);
break;