Replaces the hard-coded z=-3 view with a navigable orbit camera.

- Add EditorCamera to src/math.rs: orbit (right-drag), zoom (scroll),
  pan (middle-drag) all operate on a target/yaw/pitch/distance model
- Add mat4_look_at and build_model helpers to math.rs
- Split vertex shader MVP into model push-constant + CameraUniform
  (view + proj) at descriptor set 1, bound once per frame
- render_offscreen now accepts pre-computed view/proj matrices and
  uploads them as a per-frame uniform buffer
- SharedState gains a camera: EditorCamera field
- viewport::show handles mouse input to drive camera navigation;
  navigation is suppressed in Runtime mode
- 9 new unit tests for look-at and EditorCamera behaviour

ADR: docs/adr/adr-0009-editor-camera-with-uniforms.md

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

fix: correct inverted vertical orbit direction on right-drag

CI / build (pull_request) Successful in 3m2s

Details

6167ba36b0

Dragging down now moves the camera eye above the target (looking down)
instead of below it (looking up).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

akadmin merged commit 0aa669d4e6 into main

2026-04-13 01:21:10 +00:00

akadmin deleted branch feature/Implement-Camera-System-with-Uniforms

2026-04-13 01:21:11 +00:00

akadmin referenced this pull request from a commit

2026-04-13 01:21:11 +00:00

Merge pull request 'Add transform and camera with movement' (#38) from feature/Implement-Camera-System-with-Uniforms into main