Clip transition and radius lines at the near plane

Transition-box edges and projectile radius rings were only drawn when both
endpoints projected. An edge with one corner behind the camera vanished, so a
half-visible box or ring showed nothing. Add a segment projector that clips at
the near plane in view space, then clips the 2D result to the screen bounds,
and use it for both.

1 files changed, 5 insertions, 2 deletions

diff --git a/CONTEXT.md b/CONTEXT.md
index 2cec0ad..acdab2f 100644
--- a/CONTEXT.md
+++ b/CONTEXT.md
@@ -271,7 +271,8 @@ vocabulary / decisions.
   trigger whose target equals `g_map_prev` is marked `<- map` (the way back).
 - Scanning runs at 4 Hz in the ESP draw; the 8 world corners are projected and
   the 12 edges are drawn as a 3D wireframe, with a 10 px tag above the highest
-  visible corner.
+  visible corner. Each edge is clipped at the camera near plane and then to the
+  screen, so a box straddling the camera still draws its visible portions.
 
 ## Bones / ESP
 
@@ -644,7 +645,9 @@ vocabulary / decisions.
   `m_DmgRadius` (`FIELD_FLOAT`) as fallback, then 300/200/150/300 for
   frag/RPG/AR2/bomb.
 - Draws a small marker and a `FRAG 1.2s`-style label; the optional radius ring
-  is a 24-segment horizontal circle projected at the projectile height.
+  is a 24-segment horizontal circle projected at the projectile height, with
+  every segment near-plane/screen clipped independently, so it still draws
+  when the grenade itself is off-screen or behind the camera.
   Toggles: Fuse timer, Blast radius.
 
 ## Roadmap / TODO