Specialized THREE.ShaderMaterial for rendering thick lines using instanced quads.
Uses the semicircle kernel model for mathematically correct joints with additive blending.
Key features:
Instanced quad geometry (4 vertices per segment)
World-space line width
Parabolic intensity falloff: (1 - p²)^sharpness
Cap factor for seamless joints (0.5 at endpoints, 1.0 in body)
Line Material for Luxar
Specialized THREE.ShaderMaterial for rendering thick lines using instanced quads. Uses the semicircle kernel model for mathematically correct joints with additive blending.
Key features: