68 lines
2.2 KiB
C#
68 lines
2.2 KiB
C#
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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namespace BNG {
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/// <summary>
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/// Combine meshes at runtime to save draw calls
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/// </summary>
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public class StaticBatch : MonoBehaviour {
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public Material CombineMaterial;
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void Start() {
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if(CombineMaterial == null) {
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Debug.Log("No material specified for mesh combine. Forget to assign it in the inspector?");
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return;
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}
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Vector3 startPosition = transform.position;
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Quaternion startRotation = transform.rotation;
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transform.position = Vector3.zero;
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transform.rotation = Quaternion.identity;
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// Make sure renderer is available
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MeshRenderer mr = gameObject.GetComponent<MeshRenderer>();
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if (mr == null) {
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mr = gameObject.AddComponent<MeshRenderer>();
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var firstMesh = transform.GetComponentInChildren<MeshRenderer>();
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mr.sharedMaterial = firstMesh.material;
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mr.sharedMaterial = CombineMaterial;
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}
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MeshFilter[] meshFilters = GetComponentsInChildren<MeshFilter>();
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List<MeshFilter> meshfilter = new List<MeshFilter>();
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for (int i = 1; i < meshFilters.Length; i++) {
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meshfilter.Add(meshFilters[i]);
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}
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CombineInstance[] combine = new CombineInstance[meshfilter.Count];
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int np = 0;
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while (np < meshfilter.Count) {
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combine[np].mesh = meshfilter[np].sharedMesh;
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combine[np].transform = meshfilter[np].transform.localToWorldMatrix;
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meshfilter[np].gameObject.SetActive(false);
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np++;
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}
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MeshFilter mf = gameObject.GetComponent<MeshFilter>();
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if(mf == null) {
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mf = gameObject.AddComponent<MeshFilter>();
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}
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mf.mesh = new Mesh();
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mf.mesh.CombineMeshes(combine, true, true);
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transform.gameObject.SetActive(true);
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transform.position = startPosition;
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transform.rotation = startRotation;
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}
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}
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}
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