Blend Load

App: apps/blend_load/

Loads Models/Cube.blend, instantiates the Cube collection (with a draggable cube) and optionally GameCamera and Light from the blend file. Uses an FPS camera and raycast to drag the cube with the mouse.

Run from root

% ./plume3d blend_load

or

Run from app directory

% ./../plume3d .

What it does

• Creates a scene and loads the default shader.
• Loads the blend with Resource.loadBlend("Models/Cube.blend"), logs nodeCount, nodeName(i), nodeId(i).
• Instantiates Cube: gets the node with nodeId "model" and passes it to a Cube script that handles raycast-drag rotation.
• Camera — Either instantiates GameCamera from the blend and builds an FPSCamera from it, or creates a camera in code (configurable via USE_BLEND_ASSETS).
• Light — Either instantiates Light from the blend or creates a point light at (4, 4, 4) in code.
• Left-click + drag on the cube rotates it; right-click + drag to look; WASD / Space / Ctrl to move.

APIs

• Resource — loadBlend.
• BlendResult — instantiate(className, scene), nodeCount, nodeName, nodeId, nodes on the instantiated root.
• Scene — new, addNode, addLight, addCamera, findCameraByTag, findLightByTag, draw.
• Raycast — fromCamera for mouse picking.
• Graphics — loadShader, useShader, setViewMatrix, setProjectionMatrix, setViewProjectionEnabled.
• Input, Window.

If blend classes are empty

The engine reads class data from ID custom properties in the saved .blend file. The Plume3D addon writes that on File → Save.

1. Save after configuring — In Blender, set Class Name, Script Path, Node Id, etc., then save (Ctrl+S).
2. Enable Wren Script Config — For each object/collection that should be a class, the “Enable Wren Script Config” checkbox must be checked.
3. Debug — Run with PLUME3D_BLEND_DUMP=blend_parse.txt ./plume3d ... and inspect blend_parse.txt to see what the loader sees (e.g. className per node).