Pixel sampling

crates/resolved-cli/src/main.rs

@@ -56,7 +56,8 @@ struct RenderArgs {
     /// needs Blue Marble data).
     #[arg(long, default_value = "L0")]
     lighting: LightingTier,
-    /// Camera fidelity tier: C0.
+    /// Camera fidelity tier: C0, or C1 (adds pixels that collect light over their area:
+    /// graded edges and continuous thin parts).
     #[arg(long, default_value = "C0")]
     camera: CameraTier,
     /// Device: auto, gpu, cpu, or part of an adapter's name.