Low-Level Havok Debug Lines Visualization

[regna]

@HiGreg

Edit: good news! CreateLineSystemVertexData() generates a linear array of numbers, sort of ignoring the “array of arrays” in the specified lines parameter. Additionally, VertexData allows number or Float32Array. My primary concern of somehow a mesh being triangles is now not a concern. I have confidence that if Havok produced a Float32Array of line segments each with two points, it can be used directly in VertexData and subsequently .applyToMesh.

Yup I’ve been using BABYLON.MeshBuilder.CreateLineSystem() for Bullet and PhysX lines.

I wouldn’t worry about triangles. If Havok is like Bullet and PhysX, they both call the lines function (3 times - once per triangle line) inside of the triangle function. So the mesh triangles are already included in the debug lines, thus we don’t even need to deal with triangles - only lines.

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I will create a minimal Playground showing Ammo’s Debug Drawer, which should make it clearer how powerful and simple to use these lines are. Please give me a few days for this

In the meantime, there’s @arcman7 's PG that uses the Ammo Debug Drawer. Please note in this PG, the lines are rendered as points (instead of lines)