docs: thob task 4 report (interaction audit)

Week-2/Task-4/report.md

@@ -1,66 +1,56 @@
-# Task: Click To Highlight / Select Visual State
+# Week 2 Task 4 - Click to Highlight / Select
 
 ## Objective
-Clicking an object changes it to a “selected” visual state (brighter color, scale increase, opacity shift, etc.).
+Implement a "Click to Select" pattern where clicking an object changes its visual state (glow, scale, or color).
 
 ## Vanilla three.js
--Possible: Yes / Partial / No
+- **Possible**: Yes
--Notes:
+- **Notes**: Achieved using a `Raycaster` to detect mouse intersections with 3D objects. Requires manual math to convert mouse coordinates to NDC (Normalized Device Coordinates).
--Key concepts:
+- **Key concepts**: Raycasting, Intersection detection, NDC conversion.
--Complexity: Easy / Medium / Hard
+- **Complexity**: Medium-Hard (for beginners).
 
 ## R3F
--Possible: Yes / Partial / No
+- **Possible**: Yes
--Notes:
+- **Notes**: Built-in support for pointer events directly on meshes (e.g., `<mesh onClick={...} />`). This is the industry standard for 3D web interactions.
--What R3F abstracted:
+- **What R3F abstracted**: Raycasting setup and event propagation.
--Complexity: Easy / Medium / Hard
+- **Complexity**: Easy.
 
 ## Thob Page Builder
--Possible: Yes / Partial / No
+- **Possible**: **No / Partial**
--Notes:
+- **Notes**: The 3D Mesh nodes do not support click or hover the triggers. The only way to "select" an object is through external UI buttons or RadioGroups.
--Builder steps:
+- **Builder steps**: Create an external UI -> Assign a selection state -> Link that state to a 3D property (like Emissive intensity).
--Complexity: Easy / Medium / Hard
+- **Complexity**: Hard (requires complex logic-linking to simulate a basic 3D interaction).
 
 ## Comparison Summary
--Possible in all 3? Yes / Partial / No
+- **Possible in all 3?**: **No**. Native 3D interaction is missing in Thob.
--Main differences:
+- **Main differences**: Vanilla/R3F allow clicking the object; Thob forces you to click a 2D UI button.
--Where Thob is better:
+- **Where Thob is better**: Visual property animation is easy once triggered.
--Where Thob is weaker:
+- **Where Thob is weaker**: Total lack of Scene-level Raycasting.
--What feels awkward or unclear:
+- **What feels awkward or unclear**: Trying to find interaction settings in the 3D properties panel, only to realize they don't exist yet.
 
 ## Limitation Type (if any)
--[ ] Editor UX limitation
+- [ ] Editor UX limitation
--[ ] Runtime limitation
+- [ ] Runtime limitation
--[ ] Schema / data model limitation
+- [ ] Schema / data model limitation
--[ ] Component limitation
+- [ ] Component limitation
--[ ] Event system limitation
+- [x] Event system limitation (Critical: No 3D Raycasting)
--[ ] Asset pipeline limitation
+- [ ] Asset pipeline limitation
--[ ] Unknown / needs investigation
 
 ## Workaround
--Is there a workaround?
+- **Is there a workaround?**: Yes. Offload all interaction to **2D UI Buttons** and use them as triggers for 3D state changes.
--If yes, what is it?
 
 ## Suggested Improvement
--What should improve in Thob?
+- **Primary Optimization**: Implement **3D Move/Click Triggers** on Mesh nodes. Thob needs an "Interactions" tab in the 3D Properties panel to allow users to trigger app-states directly from 3D objects.
--Is it:
+- **Is it**: runtime, component, UX.
-  -editor
-  -runtime
-  -component
-  -UX
-  -schema/data
-
-## Difficulty Estimate
--Easy / Medium / Hard
 
 ## Business Value
--Low / Medium / High
+- **Medium-High**: Required for "Hotspots," "Guided Tours," and modern "Click-to-Configure" interiors.
 
 ## Product Lens
-- Is this pattern useful for real customers? Yes / Partial / No
+- **Is this pattern useful for real customers?**: Yes.
-- What kind of customer use case does this support?
+- **What kind of customer use case does this support?**: Virtual showrooms, architectural hotspots, and feature discovery points.
-- Does Thob feel strong enough for this use case?
+- **Does Thob feel strong enough for this use case?**: **No**. Without native 3D interaction, the experience feels "disconnected" compared to modern 3D apps.
-- What would improve the experience?
+- **What would improve the experience?**: Native pointer events on 3D meshes.
 
 ## Recommendation
-Should Thob support this better? Why?.
+Adding 3D Raycasting/Interactions should be a top priority roadmap item. It is the missing "bridge" that would allow designers to build truly immersive and interactive 3D digital products.