README.md

PolyMeshTools

This is a tool to simplify Mesh generation in C#. You don't have to worry about the number of vertices or indices; you can just keep sending triangles.

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Install with UPM

https://github.com/eviltwo/PolyMeshTools.git?path=PolyMeshTools/Assets/PolyMeshTools

Usage

Implement a ScriptableAsset class

that inherits from PolyMeshBlueprint. Add as many triangles as needed in the Write(IPolyWriter writer) method.

PolyMeshTools/PolyMeshTools/Assets/PolyMeshTools/Scripts/Runtime/Blueprints/DiscBlueprint.cs

Lines 6 to 39 in 995663d

	[CreateAssetMenu(fileName = "Disc", menuName = nameof(PolyMeshTools) + "/" + nameof(Blueprints) + "/" + "Disc")]
	public class DiscBlueprint : PolyMeshBlueprint
	{
	public float Radius = 1;
	public float StartAngle = 0;
	public float EndAngle = 360;
	public int Segments = 32;
	public Color Color = Color.white;
	private void OnValidate()
	{
	Radius = Mathf.Max(0.01f, Radius);
	Segments = Mathf.Max(2, Segments);
	}
	public override void Write(IPolyWriter writer)
	{
	var center = Vector3.zero;
	for (var i = 0; i < Segments - 1; i++)
	{
	var t0 = (float)i / (Segments - 1);
	var t1 = (float)(i + 1) / (Segments - 1);
	var angle0 = Mathf.Lerp(StartAngle, EndAngle, t0);
	var angle1 = Mathf.Lerp(StartAngle, EndAngle, t1);
	var edge0 = new Vector3(Mathf.Sin(angle0 * Mathf.Deg2Rad) * Radius, Mathf.Cos(angle0 * Mathf.Deg2Rad) * Radius, 0);
	var edge1 = new Vector3(Mathf.Sin(angle1 * Mathf.Deg2Rad) * Radius, Mathf.Cos(angle1 * Mathf.Deg2Rad) * Radius, 0);
	var triangle = new TriangleSequence();
	triangle.Push(center, new Vector2((t0 + t1) * 0.5f, 0), Color);
	triangle.Push(edge0, new Vector2(t0, 1), Color);
	triangle.Push(edge1, new Vector2(t1, 1), Color);
	triangle.Write(writer);
	}
	}
	}

Create ScriptableAsset instance

Press the "Generate Mesh Asset"

button on the blueprint to generate a Mesh.

Support My Work

As a solo developer, your financial support would be greatly appreciated and helps me continue working on this project.

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