327 lines
10 KiB
C#
327 lines
10 KiB
C#
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using System;
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using System.Collections.Generic;
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using UnityEngine;
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namespace RayFire
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{
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[Serializable]
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public class RFMeshExport
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{
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public enum MeshExportType
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{
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LastFragments = 0,
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Children = 3
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}
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public MeshExportType source;
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public string suffix = "_frags";
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// by path, by window
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// public string path = "RayFireFragments";
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// all, last
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// generate colliders
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}
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[Serializable]
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public class RFShatterAdvanced
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{
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public int seed;
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public bool decompose;
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public bool removeCollinear;
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public bool copyComponents;
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public bool inputPrecap;
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public bool outputPrecap;
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public bool removeDoubleFaces;
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public int elementSizeThreshold;
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public bool combineChildren;
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public bool smooth;
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public bool postWeld;
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public bool inner;
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public bool planar;
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public int relativeSize;
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public float absoluteSize;
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public bool sizeLimitation;
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public float sizeAmount;
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public bool vertexLimitation;
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public int vertexAmount;
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public bool triangleLimitation;
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public int triangleAmount;
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//public bool bake;
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// Planar mesh vert offset threshold
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public static float planarThreshold = 0.01f;
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public static Vector3[] vertices;
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public static Plane plane;
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/// /////////////////////////////////////////////////////////
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/// Constructor
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/// /////////////////////////////////////////////////////////
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// Constructor
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public RFShatterAdvanced()
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{
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seed = 0;
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decompose = true;
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removeCollinear = false;
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copyComponents = false;
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inputPrecap = true;
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outputPrecap = false;
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removeDoubleFaces = true;
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elementSizeThreshold = 5;
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combineChildren = false;
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smooth = false;
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postWeld = false;
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inner = false;
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planar = false;
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absoluteSize = 0.1f;
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relativeSize = 4;
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sizeLimitation = false;
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sizeAmount = 5f;
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vertexLimitation = false;
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vertexAmount = 300;
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triangleLimitation = false;
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triangleAmount = 300;
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//bake = true;
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}
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// Constructor
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public RFShatterAdvanced (RFShatterAdvanced src)
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{
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seed = src.seed;
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decompose = src.decompose;
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removeCollinear = src.removeCollinear;
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copyComponents = src.copyComponents;
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inputPrecap = src.inputPrecap;
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outputPrecap = src.outputPrecap;
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removeDoubleFaces = src.removeDoubleFaces;
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elementSizeThreshold = src.elementSizeThreshold;
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combineChildren = src.combineChildren;
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smooth = src.smooth;
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postWeld = src.postWeld;
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inner = src.inner;
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planar = src.planar;
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absoluteSize = src.absoluteSize;
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relativeSize = src.relativeSize;
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sizeLimitation = src.sizeLimitation;
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sizeAmount = src.sizeAmount;
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vertexLimitation = src.vertexLimitation;
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vertexAmount = src.vertexAmount;
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triangleLimitation = src.triangleLimitation;
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triangleAmount = src.triangleAmount;
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//bake = src.bake;
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}
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/// /////////////////////////////////////////////////////////
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/// Static
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/// /////////////////////////////////////////////////////////
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// Check if mesh is coplanar. All verts on a plane
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public static bool IsCoplanar(Mesh mesh, float threshold)
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{
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// Coplanar 3 verts
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if (mesh.vertexCount <= 3)
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return true;
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// Get first plane vertex index
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int index1 = 0;
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int index2 = 0;
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int index3 = 0;
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// Set array of vertices
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vertices = mesh.vertices;
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// Get second plane vertex index
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int ind = 1;
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for (int i = ind; i < vertices.Length; i++)
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{
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if (Vector3.Distance (vertices[index1], vertices[i]) > threshold)
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{
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index2 = i;
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ind = i;
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break;
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}
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}
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// No second vert
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if (index2 == 0)
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return true;
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// Second vert is the last ver
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if (ind == vertices.Length - 1)
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return true;
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// Get third vert
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ind++;
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float distance;
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Vector3 vector2;
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Vector3 vector1 = (vertices[index2] - vertices[index1]).normalized;
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for (int i = ind; i < vertices.Length; i++)
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{
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if (Vector3.Distance (vertices[index1], vertices[i]) > threshold)
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{
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vector2 = (vertices[i] - vertices[index1]).normalized;
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distance = Vector3.Cross (vector1, vector2).magnitude;
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if (distance > threshold)
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{
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index3 = i;
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break;
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}
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}
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}
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// No third vert
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if (index3 == 0)
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return true;
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// Create plane and check other verts for coplanar
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plane = new Plane(vertices[index1], vertices[index2], vertices[index3]);
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for (int i = 0; i < vertices.Length; i++)
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{
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if (i != index1 && i != index2 && i != index3)
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{
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distance = plane.GetDistanceToPoint (vertices[i]);
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if (Math.Abs (distance) > threshold)
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return false;
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}
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}
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return true;
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}
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/// /////////////////////////////////////////////////////////
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/// Filters
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/// /////////////////////////////////////////////////////////
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// Filter out planar meshes
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public static void RemovePlanar(ref Mesh[] meshes, ref Vector3[] pivots, ref RFDictionary[] origSubMeshIdsRf, RayfireShatter scrShatter)
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{
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if (scrShatter.advanced.planar == true)
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{
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List<Mesh> newMeshes = new List<Mesh>();
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List<Vector3> newPivots = new List<Vector3>();
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List<RFDictionary> newIds = new List<RFDictionary>();
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for (int i = 0; i < meshes.Length; i++)
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{
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if (RFShatterAdvanced.IsCoplanar (meshes[i], RFShatterAdvanced.planarThreshold) == false)
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{
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newMeshes.Add (meshes[i]);
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newPivots.Add (pivots[i]);
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newIds.Add (origSubMeshIdsRf[i]);
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}
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}
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if (newMeshes.Count > 0)
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{
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meshes = newMeshes.ToArray();
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pivots = newPivots.ToArray();
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origSubMeshIdsRf = newIds.ToArray();
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}
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}
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}
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// Filter out meshes by size
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public static void RemoveBySize(ref Mesh[] meshes, ref Vector3[] pivots, ref RFDictionary[] origSubMeshIdsRf, RayfireShatter scr)
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{
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if (scr.advanced.absoluteSize > 0 || scr.advanced.relativeSize > 0)
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{
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List<Mesh> newMeshes = new List<Mesh>();
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List<Vector3> newPivots = new List<Vector3>();
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List<RFDictionary> newIds = new List<RFDictionary>();
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// Size
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float size = scr.advanced.relativeSize / 100f;
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if (scr.meshRenderer != null)
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size *= scr.meshRenderer.bounds.size.magnitude;
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if (scr.skinnedMeshRend != null)
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size *= scr.skinnedMeshRend.bounds.size.magnitude;
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// Filter
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for (int i = 0; i < meshes.Length; i++)
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{
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if (scr.advanced.absoluteSize > 0)
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if (meshes[i].bounds.size.magnitude > scr.advanced.absoluteSize)
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{
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newMeshes.Add (meshes[i]);
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newPivots.Add (pivots[i]);
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newIds.Add (origSubMeshIdsRf[i]);
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continue;
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}
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if (scr.advanced.relativeSize > 0)
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if (meshes[i].bounds.size.magnitude > size)
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{
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newMeshes.Add (meshes[i]);
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newPivots.Add (pivots[i]);
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newIds.Add (origSubMeshIdsRf[i]);
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}
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}
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if (newMeshes.Count > 0)
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{
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meshes = newMeshes.ToArray();
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pivots = newPivots.ToArray();
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origSubMeshIdsRf = newIds.ToArray();
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}
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}
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}
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/// /////////////////////////////////////////////////////////
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/// Limitations
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/// /////////////////////////////////////////////////////////
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// Limitations ops
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public static void Limitations(RayfireShatter sh)
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{
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SizeLimitation(sh);
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SizeLimitation(sh);
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SizeLimitation(sh);
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VertexLimitation(sh);
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VertexLimitation(sh);
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VertexLimitation(sh);
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TriangleLimitation(sh);
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TriangleLimitation(sh);
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TriangleLimitation(sh);
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}
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// Size limitation
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static void SizeLimitation(RayfireShatter sh)
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{
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if (sh.advanced.sizeLimitation != true)
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return;
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for (int i = sh.fragmentsLast.Count - 1; i >= 0; i--)
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{
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MeshRenderer mr = sh.fragmentsLast[i].GetComponent<MeshRenderer>();
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if (mr.bounds.size.magnitude > sh.advanced.sizeAmount)
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sh.LimitationFragment (i);
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}
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}
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// Vertex limitation
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static void VertexLimitation(RayfireShatter sh)
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{
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if (sh.advanced.vertexLimitation != true)
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return;
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for (int i = sh.fragmentsLast.Count - 1; i >= 0; i--)
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{
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MeshFilter mf = sh.fragmentsLast[i].GetComponent<MeshFilter>();
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if (mf.sharedMesh.vertexCount > sh.advanced.vertexAmount)
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sh.LimitationFragment (i);
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}
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}
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// Triangle limitation
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static void TriangleLimitation(RayfireShatter sh)
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{
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if (sh.advanced.triangleLimitation != true)
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return;
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for (int i = sh.fragmentsLast.Count - 1; i >= 0; i--)
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{
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MeshFilter mf = sh.fragmentsLast[i].GetComponent<MeshFilter>();
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if (mf.sharedMesh.triangles.Length / 3 > sh.advanced.triangleAmount)
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sh.LimitationFragment (i);
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}
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}
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}
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}
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