How to allow an object to have a mesh

Hi all!

I'm trying to make a drawing plugin using the addon SDK v1. I want to be able to modify the mesh of the instances of my object type at runtime. To do this, i created a mesh using wi.CreateMesh(2,2).

When this method is called, i receive the error "object does not support mesh". Digging a bit into the worldinfo.js code i find this:

CreateMesh(t, e) {
 if (t = Math.floor(t),
 e = Math.floor(e),
 !this.GetInstance().GetPlugin().SupportsMesh())
 throw new Error("object does not support mesh");
 this.ReleaseMesh(),
 this._meshInfo = {
 sourceMesh: C3.New(C3.Gfx.Mesh, t, e),
 transformedMesh: C3.New(C3.Gfx.Mesh, t, e),
 meshPoly: null
 }
 }

Not all objects support meshes. You can pick an instance then {instancePicked}.plugin.supportsMesh.

construct.net/en/make-games/manuals/construct-3/scripting/scripting-reference/object-interfaces/iplugin

The documentation can be hard to navigate on what regards to addons, you will have to look into the scripting documentation to complement the addon docs.

Good to know, thank you. I guess that means that there isn't a way to manually allow a certain plugin to use meshes for now (e.g.: by specifiying some plugin _info) (?)

weird I would have assumed we can set it supports mesh via ipluginInfo, but it doesn't seem to be there

https://www.construct.net/en/make-games/manuals/addon-sdk/reference/iplugininfo

I hope this can be addded, maybe for sdk v2, but I also see how this can have many issue if you do complex custom drawing

Honestly I needed this to have control over the UVs of each point, since as far as I know the built-in mesh is the only way to specify the sampling coordinates of the texture.

It would be nice to be able to specify UVs when rendering quads or convex polygons, but that doesn't seem to be supported.