Procedural Subdivision

Pryme8 · February 15, 2019, 5:54pm

Has anyone implemented a script for subdividing meshes in a scene?

Gonna take a look at these:

Unless someone has any other thoughts?

Deltakosh · February 15, 2019, 7:02pm

We do have a simple version here:

BabylonJS/Babylon.js/blob/7fb3ab503ffd5e4ff247ae06b0514f25df9fbbfb/src/Meshes/mesh.ts#L1032


    }



    this.releaseSubMeshes();

    return new SubMesh(0, 0, totalVertices, 0, this.getTotalIndices(), this);

}



/**

 * This function will subdivide the mesh into multiple submeshes

 * @param count defines the expected number of submeshes

 */

public subdivide(count: number): void {

    if (count < 1) {

        return;

    }



    var totalIndices = this.getTotalIndices();

    var subdivisionSize = (totalIndices / count) | 0;

    var offset = 0;



    // Ensure that subdivisionSize is a multiple of 3

    while (subdivisionSize % 3 !== 0) {

Pryme8 · February 15, 2019, 7:22pm

Cool, cause I started a conversion:
https://www.babylonjs-playground.com/#5HV27W

and am pretty close, but if its done Ill use that!

@Deltakosh
https://www.babylonjs-playground.com/#5HV27W#1
box.subdivide(2) does not seem to be doing anything?

Got it:
box.increaseFacets(2)
http://babylonjsguide.github.io/snippets/Increasing_Facets
https://www.babylonjs-playground.com/#5HV27W#2

Is mesh.increaseFacets not a standard method?

Deltakosh · February 15, 2019, 9:49pm

pinging @JohnK for increaseFacets (not yet merge)

(mesh.subdivide is not about simplification but sudbividing the mesh in subMeshes)

You may want to check that: Simplify a Mesh with Auto-LOD - Babylon.js Documentation

I would be happy to get more tools to subdivide meshes

Pryme8 · February 15, 2019, 10:50pm

The increaseFacets should serve my purpose. Thank you!

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Procedural Subdivision

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