Read vertices of an imported Mesh

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_rbx775

Hi there !

Im new to Godot, and the gdScript syntax is still unknown territory to me. How can I access the vertbuffer of an imported Mesh ? I want to read out every single vertPos.

The Docs dont help because they lack examples of how to construct the classes. (Mesh / MeshInstances / MeshDataTool)

Can someone kindly point me in the right direction here ? Thank you very much !

Megalomaniak

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TwistedTwigleg

Welcome to the forums @_rbx775!

Have you seen this page on the documentation? It has a code snippet showing how to make a MeshDataTool, which you will need to access the vertices. Here’s the snippet:

var mdt = MeshDataTool.new()
mdt.create_from_surface(mesh)

_rbx775

Thanks @TwistedTwigleg , unfortunately I got '0' vertcount when 'print(mdt.get_vertex_count())' I do this:

func _ready():
	var mesh = get_node("Mesh")

    var mdt = MeshDataTool.new()
   	mdt.create_from_surface(mesh)
	print(mdt.get_vertex_count())

I read on MeshDataTool that I need to give it an ArrayMesh, but in the Docs for ArrayMesh I can only see Mesh generation from scratch, not for loading in an existing Mesh. So Im a bit stranded here.

_rbx775

Ok, I totally missed the concept of the different geometry classes. I just imported the Mesh as a fbx, which was consequently not a MeshInstance (?)

So when I created a MeshInstance manually and loaded it via the mesh dropdown as obj, everything worked.

Solved! Thanks!