Minher0 743119d6e5 Give the Environment light After Effects' look (#2436) ...

The default studio environment's level-preserving mean of 1 acted like a
100% white Ambient light: with only the Environment light on, a white floor
rendered at full white (95% of the frame saturated) while its shadow core
went to pitch black — a fog over the scene, nothing like After Effects'
default. Three changes bring the look in line, CPU and GPU alike:

- The default environment is a dim studio now: a solid-angle-weighted mean
  of 0.3 (and a stronger key gradient), so a white floor reads a mid gray
  and the light's colour x intensity still scales the level.
- The shadow occludes only the image's directional (key) fraction of the
  light — |sum of dir x radiance| / sum of radiance, computed beside the
  dominant direction and carried in the scene — so the fill keeps shining
  inside the shadow: an area-light shadow, partial like After Effects'
  (a lone bright spot on black still shadows almost fully; a uniform image
  not at all).
- The environment shadow map's penumbra has a floor — eight output pixels,
  or four map texels where those are coarser — because the map covers the
  whole scene bounding sphere rather than the view, and its texels would
  otherwise stair-step the edge (all the more in a draft render's flat 512
  budget). Shadow Diffusion widens it further, as before.

Tests: the key fraction tracks directionality; the default keeps its dim
level, its direction and its key; the default and a bright key both shadow
the floor (the default partial, the key deep) with Cast Shadows off lit
everywhere; and the full look — a mid-gray lit floor (no fog), a partial
core, and a soft edge ramp in quality and draft renders alike.

2026-10-26 23:36:19 +00:00

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src

Give the Environment light After Effects' look (#2436)

2026-10-26 23:36:19 +00:00

Cargo.toml

fix: contain GPU initialization and retire failed readbacks

2026-10-06 16:40:12 -05:00