104 lines
2.9 KiB
C#
104 lines
2.9 KiB
C#
using System;
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using System.Collections.Generic;
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using UnityEngine;
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namespace UltimateWater.Internal
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{
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[Serializable]
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public class WaterProjectionGrid : WaterPrimitiveBase
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{
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private const string _ProjectionGridKeyword = "_PROJECTION_GRID";
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public override Mesh[] GetTransformedMeshes(Camera camera, out Matrix4x4 matrix, int vertexCount, bool volume)
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{
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int pixelWidth = camera.pixelWidth;
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int pixelHeight = camera.pixelHeight;
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int key = pixelHeight | (pixelWidth << 16);
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Vector3 position = camera.transform.position;
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matrix = Matrix4x4.identity;
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matrix.m03 = position.x;
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matrix.m13 = 0f;
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matrix.m23 = position.z;
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float num = (float)vertexCount / (float)(pixelWidth * pixelHeight);
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_Water.Renderer.PropertyBlock.SetMatrix("_InvViewMatrix", camera.cameraToWorldMatrix);
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if (!_Cache.TryGetValue(key, out var value))
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{
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value = (_Cache[key] = new CachedMeshSet(CreateMeshes(Mathf.RoundToInt((float)pixelWidth * num), Mathf.RoundToInt((float)pixelHeight * num))));
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}
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return value.Meshes;
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}
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private Mesh[] CreateMeshes(int verticesX, int verticesY)
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{
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List<Mesh> list = new List<Mesh>();
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List<Vector3> list2 = new List<Vector3>();
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List<int> list3 = new List<int>();
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int num = 0;
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int num2 = 0;
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for (int i = 0; i < verticesY; i++)
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{
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float y = (float)i / (float)(verticesY - 1);
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for (int j = 0; j < verticesX; j++)
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{
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float x = (float)j / (float)(verticesX - 1);
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list2.Add(new Vector3(x, y, 0f));
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if (j != 0 && i != 0 && num > verticesX)
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{
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list3.Add(num);
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list3.Add(num - 1);
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list3.Add(num - verticesX - 1);
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list3.Add(num - verticesX);
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}
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num++;
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if (num == 65000)
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{
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Mesh mesh = CreateMesh(list2.ToArray(), list3.ToArray(), $"Projection Grid {verticesX}x{verticesY} - {num2:00}");
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mesh.bounds = new Bounds(Vector3.zero, new Vector3(100000f, 0.2f, 100000f));
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list.Add(mesh);
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j--;
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i--;
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y = (float)i / (float)(verticesY - 1);
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num = 0;
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list2.Clear();
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list3.Clear();
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num2++;
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}
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}
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}
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if (num != 0)
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{
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Mesh mesh2 = CreateMesh(list2.ToArray(), list3.ToArray(), $"Projection Grid {verticesX}x{verticesY} - {num2:00}");
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mesh2.bounds = new Bounds(Vector3.zero, new Vector3(100000f, 0.2f, 100000f));
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list.Add(mesh2);
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}
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return list.ToArray();
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}
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protected override Matrix4x4 GetMatrix(Camera camera)
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{
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throw new InvalidOperationException();
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}
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protected override Mesh[] CreateMeshes(int vertexCount, bool volume)
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{
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throw new InvalidOperationException();
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}
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internal override void OnEnable(Water water)
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{
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base.OnEnable(water);
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_Water = water;
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}
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internal override void AddToMaterial(Water water)
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{
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water.Materials.SetKeyword("_PROJECTION_GRID", enable: true);
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}
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internal override void RemoveFromMaterial(Water water)
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{
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water.Materials.SetKeyword("_PROJECTION_GRID", enable: false);
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}
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}
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}
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