The one comparison sampler every shadowed draw shares: less-equal —
GL's receiver <= occluder, evaluated by the sampler — over a nearest,
clamped tap, so each textureSampleCompareLevel is exactly one texel's
comparison and the 3×3 filter stays the explicit arithmetic SHADOW_GLSL
records (§33). Created by the first shadowed draw, beside the layout.
The one comparison sampler every shadowed draw shares:
less-equal— GL'sreceiver <= occluder, evaluated by the sampler — over a nearest, clamped tap, so eachtextureSampleCompareLevelis exactly one texel's comparison and the 3×3 filter stays the explicit arithmeticSHADOW_GLSLrecords (§33). Created by the first shadowed draw, beside the layout.