Class Lights

Aggregates the environment-illumination components for a View.

• Located at View.lights.

Holds:

• Lights.ibl — cubemap-based image-based lighting, the prefiltered environment that drives the diffuse + GGX-specular contribution to each fragment's BRDF.
• Lights.hemispheric — analytical sky/ground/up gradient ambient that lifts the flat ambient floor in every render mode by default.

Both effects stack additively when their respective render-mode sets overlap. The cubemap is the heavyweight, physically-based path; the hemisphere is the cheap analytical fallback.