Lightmap (GoldSrc)

GoldSrc

Source Engine

Source 2

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Note:In vanilla GoldSrc, lightmap scale is always 1 luxel for every 16 texels (not units), regardless of texture scale. This means that smaller texture scales will result in allocblock being used up faster.

Code Fix:A custom renderer can use the DecoupledLM BSPX lump to store higher resolution lightmaps separate from texel scale; ericw-tools can create GoldSrc BSPs with this lump.

Note:Each compiled brush polygon can host a maximum of 15x15 luxels (240x240 texels) . HLBSP will chop faces to get extra luxels on if it needs to.