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ThiefLightmapper
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Simplify lightmap origin calculation and adjust to cast from center of pixel

This commit is contained in:
Jarrod Doyle 2024-09-23 07:57:59 +01:00
parent f4c4237306
commit 8bde33ebf2
Signed by: Jayrude
GPG Key ID: 38B57B16E7C0ADF7
1 changed files with 3 additions and 5 deletions
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8
KeepersCompound.Lightmapper/Program.cs
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@ -211,12 +211,10 @@ class Program
ResetLightmap(ambientLight, lightmap); ResetLightmap(ambientLight, lightmap);
// Get world position of lightmap (0, 0) // Get world position of lightmap (0, 0) (+0.5 so we cast from the center of a pixel)
var baseU = (4.0f / info.Width) * (renderPoly.TextureBases.Item1 + (0.5f - info.Bases.Item1) * 0.25f);
var baseV = (4.0f / info.Height) * (renderPoly.TextureBases.Item2 + (0.5f - info.Bases.Item2) * 0.25f);
var topLeft = cell.Vertices[cell.Indices[cellIdxOffset]]; var topLeft = cell.Vertices[cell.Indices[cellIdxOffset]];
topLeft -= baseU * (info.Width * 0.25f) * renderPoly.TextureVectors.Item1; topLeft -= renderPoly.TextureVectors.Item1 * (renderPoly.TextureBases.Item1 - info.Bases.Item1 * 0.25f);
topLeft -= baseV * (info.Height * 0.25f) * renderPoly.TextureVectors.Item2; topLeft -= renderPoly.TextureVectors.Item2 * (renderPoly.TextureBases.Item2 - info.Bases.Item2 * 0.25f);
foreach (var light in lights) foreach (var light in lights)
{ {