Stabilize Phase 16 3D samples and prepare handoff to finalize phase<BUILD_PR_LEVEL_17_16_FINAL_3D_STABILITY_AND_HANDOFF_GATE>

Author: DavidQ

docs/dev/CODEX_COMMANDS.md

@@ -3,19 +3,19 @@ MODEL: GPT-5.3-codex
 REASONING: high
 
 COMMAND:
-Add advanced but safe enhancements to Phase 16 samples.
+Stabilize Phase 16 samples (1601–1608).
 
 Focus:
-- camera mode toggle
-- simple shading/depth cues
-- debug overlay
+- align controls
+- remove inconsistencies
+- ensure visual/readability consistency
 
 Rules:
-- smallest scoped change
-- sample-only
+- no new features
 - no zip output
+- smallest scoped fixes only
 
 Validate:
-- features visibly work
+- full sample smoke 1601–1608
+- sanity pass
 - no regressions
-- sanity + smoke pass

docs/dev/COMMIT_COMMENT.txt

@@ -1 +1 @@
-Add advanced readability and camera enhancements to Phase 16 samples<BUILD_PR_LEVEL_17_15_ADVANCED_3D_SAMPLE_EXTENSIONS>
+Stabilize Phase 16 3D samples and prepare handoff to finalize phase<BUILD_PR_LEVEL_17_16_FINAL_3D_STABILITY_AND_HANDOFF_GATE>

docs/dev/reports/change_summary.txt

@@ -1 +1 @@
-Adds camera modes, shading cues, and debug overlays to improve 3D sample clarity.
+Phase 16 stabilized: controls aligned, visuals consistent, ready for engine finalize phase.

docs/dev/reports/launch_smoke_report.md

@@ -1,16 +1,9 @@
 # Launch Smoke Report
 
-Generated: 2026-04-15T21:59:22.383Z
+Generated: 2026-04-15T22:02:45.140Z
 
-Filters: games=false, samples=true, tools=false, sampleRange=1601-1608
+Filters: games=false, samples=true, tools=false, sampleRange=0101-0101
 
 | Status | Type | Label | Path | Notes | Steps |
 | --- | --- | --- | --- | --- | --- |
-| PASS | sample | 1601 | samples\phase-16\1601\index.html |  | npm install --prefix ./tmp ws → npm run test:launch-smoke |
-| PASS | sample | 1602 | samples\phase-16\1602\index.html |  | npm install --prefix ./tmp ws → npm run test:launch-smoke |
-| PASS | sample | 1603 | samples\phase-16\1603\index.html |  | npm install --prefix ./tmp ws → npm run test:launch-smoke |
-| PASS | sample | 1604 | samples\phase-16\1604\index.html |  | npm install --prefix ./tmp ws → npm run test:launch-smoke |
-| PASS | sample | 1605 | samples\phase-16\1605\index.html |  | npm install --prefix ./tmp ws → npm run test:launch-smoke |
-| PASS | sample | 1606 | samples\phase-16\1606\index.html |  | npm install --prefix ./tmp ws → npm run test:launch-smoke |
-| PASS | sample | 1607 | samples\phase-16\1607\index.html |  | npm install --prefix ./tmp ws → npm run test:launch-smoke |
-| PASS | sample | 1608 | samples\phase-16\1608\index.html |  | npm install --prefix ./tmp ws → npm run test:launch-smoke |
+| PASS | sample | 0101 | samples\phase-01\0101\index.html |  | npm install --prefix ./tmp ws → npm run test:launch-smoke |

docs/dev/reports/validation_checklist.txt

@@ -1,6 +1,6 @@
 
-[ ] camera toggle works
-[ ] shading improves readability
-[ ] debug overlay visible
+[ ] all samples consistent
+[ ] controls aligned
+[ ] no visual regressions
+[ ] full smoke pass 1601–1608
 [ ] sanity pass
-[ ] smoke pass

docs/pr/BUILD_PR_LEVEL_17_16_FINAL_3D_STABILITY_AND_HANDOFF_GATE.md

@@ -0,0 +1,25 @@
+
+# BUILD PR: 17.16 Final 3D Stability and Handoff Gate
+
+## Purpose
+Lock Phase 16 (3D) into a stable, validated state ready for Phase 18 (Finalize Engine).
+
+## Scope
+- consistency checks across 1601–1608
+- control standardization (movement, debug, camera expectations)
+- eliminate drift between samples
+- final visibility/readability pass
+
+## Constraints
+- no engine changes
+- no feature expansion
+- stabilization only
+- no networking / 2D impact
+
+## Acceptance
+- all samples behave consistently
+- controls feel uniform
+- no visual regressions
+- full sample smoke 1601–1608 passes
+- sanity passes
+- ready for finalize phase

samples/phase-16/1602/MazeRunner3DScene.js

@@ -223,7 +223,7 @@ export default class MazeRunner3DScene extends Scene {
     drawWireBox(renderer, this.goal, { width: this.goal.width, height: this.goal.height, depth: this.goal.depth }, cameraState, projectionViewport, '#4ade80', 2);
 
     const player = this.world.requireComponent(this.playerId, 'transform3D');
-    drawPanel(renderer, 620, 34, 300, 126, 'Maze Runtime', [
+    drawPanel(renderer, 620, 34, 300, 156, 'Maze Runtime', [
       `Cube: x=${player.x.toFixed(2)} y=${player.y.toFixed(2)} z=${player.z.toFixed(2)}`,
       `Moved entities: ${this.lastPhysicsSummary.movedEntities}`,
       `Resolved collisions: ${this.lastPhysicsSummary.collisionCount}`,

samples/phase-16/1603/FirstPersonWalkthroughScene.js

@@ -170,7 +170,7 @@ export default class FirstPersonWalkthroughScene extends Scene {
   render(renderer) {
     drawFrame(renderer, theme, [
       'Sample 1603 - First Person Walkthrough',
-      'Navigate from a first-person camera while AABB collisions keep movement grounded.',
+      'Navigate from a default first-person camera while AABB collisions keep movement grounded.',
       'Move: W A S D | Look: Arrow Keys | Camera: C | Debug: V',
       'Stay centered in the lane and navigate around interior blockers.',
     ]);
@@ -214,12 +214,12 @@ export default class FirstPersonWalkthroughScene extends Scene {
     renderer.drawLine(centerX, centerY - 8, centerX, centerY + 8, '#7dd3fc', 1);
 
     const player = this.world.requireComponent(this.playerId, 'transform3D');
-    drawPanel(renderer, 620, 34, 300, 126, 'Walkthrough Runtime', [
+    drawPanel(renderer, 620, 34, 300, 156, 'Walkthrough Runtime', [
       `Position: x=${player.x.toFixed(2)} y=${player.y.toFixed(2)} z=${player.z.toFixed(2)}`,
       `View: yaw=${this.yaw.toFixed(2)} pitch=${this.pitch.toFixed(2)}`,
       `Moved entities: ${this.lastPhysicsSummary.movedEntities}`,
       `Resolved collisions: ${this.lastPhysicsSummary.collisionCount}`,
-      'View mode: first person + collision-aware movement',
+      'View mode: C cycles follow/wide/overhead',
     ]);
 
     drawPhase16DebugOverlay(renderer, this.viewport, this.viewState, [

samples/phase-16/1604/Platformer3DBasicsScene.js

@@ -272,7 +272,7 @@ export default class Platformer3DBasicsScene extends Scene {
 
     const player = this.world.requireComponent(this.playerId, 'transform3D');
     const velocity = this.world.requireComponent(this.playerId, 'velocity3D');
-    drawPanel(renderer, 620, 34, 300, 126, 'Platformer Runtime', [
+    drawPanel(renderer, 620, 34, 300, 156, 'Platformer Runtime', [
       `Cube: x=${player.x.toFixed(2)} y=${player.y.toFixed(2)} z=${player.z.toFixed(2)}`,
       `VelocityY: ${velocity.y.toFixed(2)} | Grounded: ${this.isGrounded ? 'yes' : 'no'}`,
       `Moved entities: ${this.lastPhysicsSummary.movedEntities}`,

samples/phase-16/1605/DrivingSandbox3DScene.js

@@ -332,7 +332,7 @@ export default class DrivingSandbox3DScene extends Scene {
       'Sample 1605 - 3D Driving Sandbox',
       'Drive a simple 3D test track with throttle, steering, and AABB barriers.',
       'Throttle: W/S | Steer: A/D | Camera: C | Debug: V',
-      'Chase camera hard-locks behind the vehicle for stable readability.',
+      'Default follow mode uses a hard-locked chase camera for stable readability.',
     ]);
 
     renderer.strokeRect(this.viewport.x, this.viewport.y, this.viewport.width, this.viewport.height, '#d8d5ff', 2);
@@ -380,7 +380,7 @@ export default class DrivingSandbox3DScene extends Scene {
     drawAsymmetricVehicle(renderer, car, carSize, vehicleYaw, cameraState, projectionViewport, '#38bdf8');
     drawVehicleHeadingMarker(renderer, this.getVehicleMarkerWorldPoints(), cameraState, projectionViewport);
 
-    drawPanel(renderer, 620, 34, 300, 126, 'Driving Runtime', [
+    drawPanel(renderer, 620, 34, 300, 176, 'Driving Runtime', [
       `Car: x=${car.x.toFixed(2)} y=${car.y.toFixed(2)} z=${car.z.toFixed(2)}`,
       `Speed: ${this.speed.toFixed(2)} u/s | Heading: ${this.heading.toFixed(2)} rad`,
       `Chase yaw: ${this.cameraYaw.toFixed(2)} rad`,