Morphing custom meshes

[Gugis]

I've created ground mesh and I try to manimulate it's vertices positions with mouse click, however it does not work. Positions are changed but mesh is not being re rendered. Same goes for custom meshes (imported from Blender). Here's my playground, what do I miss?

[adam]

You have to make the mesh updatable.

http://www.babylonjs-playground.com/#1QM8F6#4

You helped me out with the issue I was having.  I didn't know about the updateMeshPositions function.  thanks

[Gugis]

1 hour ago, adam said:

You have to make the mesh updatable.

http://www.babylonjs-playground.com/#1QM8F6#4

You helped me out with the issue I was having.  I didn't know about the updateMeshPositions function.  thanks

Thank you, sir

P.S. how to make imported mesh updatable? 

[adam]

14 hours ago, Gugis said:

how to make imported mesh updatable?

The only way I was able to do that was by using the Tower of Babel exporter for Blender.

https://github.com/BabylonJS/Extensions/tree/master/QueuedInterpolation/Blender

[JCPalmer]

To do it from a .babylon created mesh, convert to an updateable buffer via:

mesh.setVerticesData(BABYLON.VertexBuffer.PositionKind,   
                     new Float32Array(mesh.getVerticesData(BABYLON.VertexBuffer.PositionKind)), 
                     true);

The Float32Array part is optional, but creates less garbage during morphing.

After that:

var data = mesh.getVerticesData(BABYLON.VertexBuffer.PositionKind);
// do stuff to data
mesh.updateVerticesData(BABYLON.VertexBuffer.PositionKind, data);