Shadow groups
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Revision as of 15:39, 25 September 2012
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Shadows group is a combination of _cs (cast shadows) and _rs (receive shadows) entity keys used to control how entity cast lightmap/vertex light shadows. A numbers should be used for shadows groups (1, 2, 3, 100, 1000 etc.), negative values are allowed.
Shadows groups are applied during lightmapping of entity using this rules:
- Receive shadows is 1: only receive shadows from objects with cast shadows 1 (the worldspawn cast shadows).
- Receive shadows is > 1: only receive shadows from objects with same abs(cast shadows) and worldspawn.
- Receive shadows is < 1: only receive shadows from objects with same abs(cast shadows) and no worldspawn.
By default worldspawn and func_group have cast shadows and receive shadows 1. All other entities have cast shadows 0 and receive shadows 1.
