Saturation and blooming

readme.md

@@ -206,10 +206,10 @@ pixels that collect light over their area, lens distortion (Brown-Conrady),
 lens blur (a Gaussian PSF) applied to the scene rendered 2 x 2 finer than the
 pixels, the Sun, Moon and Earth at their apparent positions (light time
 and aberration), detector noise (shot, dark current and read noise, seeded
-and reproducible), and the detector's fixed pattern (PRNU, DSNU and hot
-pixels). Planned, in order:
+and reproducible), the detector's fixed pattern (PRNU, DSNU and hot pixels),
+and blooming along columns or into neighbors. Planned, in order:
 
-- Camera: saturation and blooming.
+- Camera: the C1 checkpoint, then diffraction and measured PSFs (C2).
 - Lighting: BRDF and spectral materials, atmospheric scattering, clouds, lunar
   terrain.
 - Portable ray tracing, path tracing, and label outputs for ML.