look_glow

A sprite particle drawn as a glow: a wide, low body and a small hot core, so many of them add up to light rather than to white.

detail is unused by this look's shape but still declared for a uniform property set; energy scales the final colour.

The material @builtin::deprecated.deprecatedParticles.fx.looks.materials.look_glow draws with look = "glow" on an emitter.