docs(project): Incorporate detailed debugging tasks from 3D.md

- Expanded 'Task #18: 3D System Enhancements' to include specific debugging features mentioned in the original 3D.md file:
  - Collision points visualization.
  - Interactive ray/object intersection visualization.
  - Visualization of light sources and their shadow maps.
- This ensures all potential debugging needs are captured and tracked for future implementation.

1 files changed, 6 insertions, 1 deletions

diff --git a/PROJECT_CONTEXT.md b/PROJECT_CONTEXT.md
index d822a90..59c7ee7 100644
--- a/PROJECT_CONTEXT.md
+++ b/PROJECT_CONTEXT.md
@@ -37,7 +37,12 @@ Style:
     - [ ] Develop a web-based tool (`tools/editor`) for creating and editing `.spec` files visually.
     - [ ] The tool should support generating `.spec` files from elementary shapes (lines, curves) for extreme compression.
 - **Task #18: 3D System Enhancements**
-    - [ ] **Visual Debug Mode**: Implement a debug overlay (removable with `STRIP_ALL`) to render wireframe bounding volumes, object trajectories, and light source representations.
+- **Visual Debug Mode**: Implement a debug overlay (removable with `STRIP_ALL`) that includes:
+    - Wireframe bounding volumes (boxes, spheres, etc.)
+    - Object and camera trajectories
+    - Collision points visualization
+    - Interactive ray/object intersection visualization
+    - Light sources (direction, cone) and their shadow maps (3D and on-screen 2D).
     - [ ] **Blender Exporter**: Create a tool to convert simple Blender scenes into the demo's internal asset format.
     - [ ] **GPU BVH & Shadows**: Implement a GPU-based Bounding Volume Hierarchy (BVH) to optimize scene queries (shadows, AO) from the shader, replacing the current O(N) loop.
     - [ ] **Texture and binding groups**: currently we can only bind one texture. Support arbitrary number of textures / binding in a sane way. Avoid immediate 'hacks' and 'fixes'