387 lines
22 KiB
C#
387 lines
22 KiB
C#
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using UnityEngine;
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using UnityEngine.Profiling;
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using System.Collections.Generic;
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namespace JBooth.MicroVerseCore
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{
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public class MapGen
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{
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static Shader curvatureShader = null;
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public static RenderTexture GenerateCurvatureMap(Terrain t, Dictionary<Terrain, RenderTexture> normals, int width, int height)
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{
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Profiler.BeginSample("Generate Curvature Map");
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if (curvatureShader == null)
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{
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curvatureShader = Shader.Find("Hidden/MicroVerse/CurvatureMapGen");
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}
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var material = new Material(curvatureShader);
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var desc = new RenderTextureDescriptor(width, height, 0);
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desc.colorFormat = RenderTextureFormat.R8;
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desc.useMipMap = true;
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var rt = RenderTexture.GetTemporary(desc);
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rt.wrapMode = TextureWrapMode.Clamp;
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RenderTexture.active = rt;
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material.SetTexture("_Normalmap", normals[t]);
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if (t.leftNeighbor && normals.ContainsKey(t.leftNeighbor))
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{
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material.SetTexture("_Normalmap_NX", normals[t.leftNeighbor]);
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material.EnableKeyword("_NX");
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}
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if (t.rightNeighbor && normals.ContainsKey(t.rightNeighbor))
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{
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material.SetTexture("_Normalmap_PX", normals[t.rightNeighbor]);
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material.EnableKeyword("_PX");
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}
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if (t.bottomNeighbor && normals.ContainsKey(t.bottomNeighbor))
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{
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material.SetTexture("_Normalmap_NY", normals[t.bottomNeighbor]);
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material.EnableKeyword("_NY");
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}
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if (t.topNeighbor && normals.ContainsKey(t.topNeighbor))
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{
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material.SetTexture("_Normalmap_PY", normals[t.topNeighbor]);
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material.EnableKeyword("_PY");
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}
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Graphics.Blit(null, rt, material);
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GameObject.DestroyImmediate(material);
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Profiler.EndSample();
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return rt;
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}
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static ComputeShader flowShader = null;
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static int _Width = Shader.PropertyToID("_Width");
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static int _Height = Shader.PropertyToID("_Height");
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static int _WaterMap = Shader.PropertyToID("_WaterMap");
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static int _OutFlow = Shader.PropertyToID("_OutFlow");
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static int _HeightMap = Shader.PropertyToID("_HeightMap");
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static int _VelocityMap = Shader.PropertyToID("_VelocityMap");
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public static RenderTexture QuadCombine(Terrain t, Dictionary<Terrain, RenderTexture> tempRenderData, int borderPixels = 32)
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{
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Profiler.BeginSample("Quad Expand");
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var myMask = tempRenderData[t];
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var expandedRT = RenderTexture.GetTemporary(myMask.width + borderPixels * 2, myMask.height + borderPixels * 2, 0, myMask.graphicsFormat);
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Graphics.CopyTexture(myMask, 0, 0, 0, 0, myMask.width, myMask.height, expandedRT, 0, 0, borderPixels, borderPixels);
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expandedRT.name = "MicroVerse::NineCombine";
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if (t.topNeighbor != null)
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{
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if (tempRenderData.ContainsKey(t.topNeighbor))
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{
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Graphics.CopyTexture(tempRenderData[t.topNeighbor], 0, 0, 0, 0, myMask.width, borderPixels, expandedRT, 0, 0, borderPixels, expandedRT.height - borderPixels);
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}
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}
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if (t.leftNeighbor && tempRenderData.ContainsKey(t.leftNeighbor))
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{
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Graphics.CopyTexture(tempRenderData[t.leftNeighbor], 0, 0, myMask.width - borderPixels, 0, borderPixels, myMask.height, expandedRT, 0, 0, 0, borderPixels);
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}
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if (t.rightNeighbor && tempRenderData.ContainsKey(t.rightNeighbor))
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{
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Graphics.CopyTexture(tempRenderData[t.rightNeighbor], 0, 0, 0, 0, borderPixels, myMask.height, expandedRT, 0, 0, expandedRT.width-borderPixels, borderPixels);
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}
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if (t.bottomNeighbor != null)
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{
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if (tempRenderData.ContainsKey(t.bottomNeighbor))
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{
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Graphics.CopyTexture(tempRenderData[t.bottomNeighbor], 0, 0, 0, myMask.height - borderPixels, myMask.width, borderPixels, expandedRT, 0, 0, borderPixels, 0);
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}
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}
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Profiler.EndSample(); // quad combine
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return expandedRT;
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}
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public static RenderTexture NineCombine(Terrain t, Dictionary<Terrain, RenderTexture> tempRenderData, int borderPixels = 32)
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{
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Profiler.BeginSample("Nine Expand");
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var myMask = tempRenderData[t];
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var expandedRT = RenderTexture.GetTemporary(myMask.width + borderPixels * 2, myMask.height + borderPixels * 2, 0, myMask.graphicsFormat);
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//RenderTexture.active = expandedRT;
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//GL.Clear(true, true, Color.black);
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Graphics.CopyTexture(myMask, 0, 0, 0, 0, myMask.width, myMask.height, expandedRT, 0, 0, borderPixels, borderPixels);
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expandedRT.name = "MicroVerse::NineCombine";
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if (t.topNeighbor != null)
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{
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if (tempRenderData.ContainsKey(t.topNeighbor))
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{
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Graphics.CopyTexture(tempRenderData[t.topNeighbor], 0, 0, 0, 0, myMask.width, borderPixels, expandedRT, 0, 0, borderPixels, expandedRT.height - borderPixels);
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}
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if (t.topNeighbor.leftNeighbor != null && tempRenderData.ContainsKey(t.topNeighbor.leftNeighbor))
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{
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Graphics.CopyTexture(tempRenderData[t.topNeighbor.leftNeighbor], 0, 0, myMask.width - borderPixels, 0, borderPixels, borderPixels, expandedRT, 0, 0, 0, expandedRT.height - borderPixels);
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}
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if (t.topNeighbor.rightNeighbor != null && tempRenderData.ContainsKey(t.topNeighbor.rightNeighbor))
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{
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Graphics.CopyTexture(tempRenderData[t.topNeighbor.rightNeighbor], 0, 0, 0, 0, borderPixels, borderPixels, expandedRT, 0, 0, expandedRT.width-borderPixels, expandedRT.height - borderPixels);
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}
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}
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if (t.leftNeighbor && tempRenderData.ContainsKey(t.leftNeighbor))
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{
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Graphics.CopyTexture(tempRenderData[t.leftNeighbor], 0, 0, myMask.width - borderPixels, 0, borderPixels, myMask.height, expandedRT, 0, 0, 0, borderPixels);
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}
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if (t.rightNeighbor && tempRenderData.ContainsKey(t.rightNeighbor))
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{
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Graphics.CopyTexture(tempRenderData[t.rightNeighbor], 0, 0, 0, 0, borderPixels, myMask.height, expandedRT, 0, 0, expandedRT.width - borderPixels, borderPixels);
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}
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if (t.bottomNeighbor != null)
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{
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if (tempRenderData.ContainsKey(t.bottomNeighbor))
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{
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Graphics.CopyTexture(tempRenderData[t.bottomNeighbor], 0, 0, 0, myMask.height - borderPixels, myMask.width, borderPixels, expandedRT, 0, 0, borderPixels, 0);
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}
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if (t.bottomNeighbor.leftNeighbor != null && tempRenderData.ContainsKey(t.bottomNeighbor.leftNeighbor))
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{
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Graphics.CopyTexture(tempRenderData[t.bottomNeighbor.leftNeighbor], 0, 0, myMask.width - borderPixels, myMask.height - borderPixels, borderPixels, borderPixels, expandedRT, 0, 0, 0, 0);
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}
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if (t.bottomNeighbor.rightNeighbor != null && tempRenderData.ContainsKey(t.bottomNeighbor.rightNeighbor))
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{
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Graphics.CopyTexture(tempRenderData[t.bottomNeighbor.rightNeighbor], 0, 0, 0, myMask.height - borderPixels, borderPixels, borderPixels, expandedRT, 0, 0, expandedRT.width - borderPixels, 0);
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}
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}
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Profiler.EndSample(); // quad combine
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return expandedRT;
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}
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public static RenderTexture NineCombineCurrentTreeMask(Terrain t, Dictionary<Terrain, OcclusionData> tempRenderData, int borderPixels = 32)
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{
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Profiler.BeginSample("Nine Expand");
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var myMask = tempRenderData[t].currentTreeMask;
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var expandedRT = RenderTexture.GetTemporary(myMask.width + borderPixels * 2, myMask.height + borderPixels * 2, 0, RenderTextureFormat.R8, RenderTextureReadWrite.Linear);
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//RenderTexture.active = expandedRT;
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//GL.Clear(true, true, Color.black);
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Graphics.CopyTexture(myMask, 0, 0, 0, 0, myMask.width, myMask.height, expandedRT, 0, 0, borderPixels, borderPixels);
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expandedRT.name = "MicroVerse::NineCombine";
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if (t.topNeighbor != null)
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{
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if (tempRenderData.ContainsKey(t.topNeighbor) && tempRenderData[t.topNeighbor].currentTreeMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.topNeighbor].currentTreeMask, 0, 0, 0, 0, myMask.width, borderPixels, expandedRT, 0, 0, borderPixels, expandedRT.height - borderPixels);
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}
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if (t.topNeighbor.leftNeighbor != null && tempRenderData.ContainsKey(t.topNeighbor.leftNeighbor) && tempRenderData[t.topNeighbor.leftNeighbor].currentTreeMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.topNeighbor.leftNeighbor].currentTreeMask, 0, 0, myMask.width - borderPixels, 0, borderPixels, borderPixels, expandedRT, 0, 0, 0, expandedRT.height - borderPixels);
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}
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if (t.topNeighbor.rightNeighbor != null && tempRenderData.ContainsKey(t.topNeighbor.rightNeighbor) && tempRenderData[t.topNeighbor.rightNeighbor].currentTreeMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.topNeighbor.rightNeighbor].currentTreeMask, 0, 0, 0, 0, borderPixels, borderPixels, expandedRT, 0, 0, expandedRT.width - borderPixels, expandedRT.height - borderPixels);
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}
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}
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if (t.leftNeighbor && tempRenderData.ContainsKey(t.leftNeighbor) && tempRenderData[t.leftNeighbor].currentTreeMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.leftNeighbor].currentTreeMask, 0, 0, myMask.width - borderPixels, 0, borderPixels, myMask.height, expandedRT, 0, 0, 0, borderPixels);
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}
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if (t.rightNeighbor && tempRenderData.ContainsKey(t.rightNeighbor) && tempRenderData[t.rightNeighbor].currentTreeMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.rightNeighbor].currentTreeMask, 0, 0, 0, 0, borderPixels, myMask.height, expandedRT, 0, 0, expandedRT.width - borderPixels, borderPixels);
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}
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if (t.bottomNeighbor != null)
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{
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if (tempRenderData.ContainsKey(t.bottomNeighbor) && tempRenderData[t.bottomNeighbor].currentTreeMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.bottomNeighbor].currentTreeMask, 0, 0, 0, myMask.height - borderPixels, myMask.width, borderPixels, expandedRT, 0, 0, borderPixels, 0);
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}
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if (t.bottomNeighbor.leftNeighbor != null && tempRenderData.ContainsKey(t.bottomNeighbor.leftNeighbor) && tempRenderData[t.bottomNeighbor.leftNeighbor].currentTreeMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.bottomNeighbor.leftNeighbor].currentTreeMask, 0, 0, myMask.width - borderPixels, myMask.height - borderPixels, borderPixels, borderPixels, expandedRT, 0, 0, 0, 0);
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}
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if (t.bottomNeighbor.rightNeighbor != null && tempRenderData.ContainsKey(t.bottomNeighbor.rightNeighbor) && tempRenderData[t.bottomNeighbor.rightNeighbor].currentTreeMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.bottomNeighbor.rightNeighbor].currentTreeMask, 0, 0, 0, myMask.height - borderPixels, borderPixels, borderPixels, expandedRT, 0, 0, expandedRT.width - borderPixels, 0);
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}
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}
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Profiler.EndSample();
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return expandedRT;
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}
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public static RenderTexture NineCombineCurrentObjectMask(Terrain t, Dictionary<Terrain, OcclusionData> tempRenderData, int borderPixels = 32)
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{
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Profiler.BeginSample("Nine Expand");
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var myMask = tempRenderData[t].currentObjectMask;
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var expandedRT = RenderTexture.GetTemporary(myMask.width + borderPixels * 2, myMask.height + borderPixels * 2, 0, myMask.graphicsFormat);
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//RenderTexture.active = expandedRT;
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//GL.Clear(true, true, Color.black);
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Graphics.CopyTexture(myMask, 0, 0, 0, 0, myMask.width, myMask.height, expandedRT, 0, 0, borderPixels, borderPixels);
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expandedRT.name = "MicroVerse::NineCombine";
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if (t.topNeighbor != null)
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{
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if (tempRenderData.ContainsKey(t.topNeighbor) && tempRenderData[t.topNeighbor].currentObjectMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.topNeighbor].currentObjectMask, 0, 0, 0, 0, myMask.width, borderPixels, expandedRT, 0, 0, borderPixels, expandedRT.height - borderPixels);
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}
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if (t.topNeighbor.leftNeighbor != null && tempRenderData.ContainsKey(t.topNeighbor.leftNeighbor) && tempRenderData[t.topNeighbor.leftNeighbor].currentObjectMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.topNeighbor.leftNeighbor].currentObjectMask, 0, 0, myMask.width - borderPixels, 0, borderPixels, borderPixels, expandedRT, 0, 0, 0, expandedRT.height - borderPixels);
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}
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if (t.topNeighbor.rightNeighbor != null && tempRenderData.ContainsKey(t.topNeighbor.rightNeighbor) && tempRenderData[t.topNeighbor.rightNeighbor].currentObjectMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.topNeighbor.rightNeighbor].currentObjectMask, 0, 0, 0, 0, borderPixels, borderPixels, expandedRT, 0, 0, expandedRT.width - borderPixels, expandedRT.height - borderPixels);
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}
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}
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if (t.leftNeighbor && tempRenderData.ContainsKey(t.leftNeighbor) && tempRenderData[t.leftNeighbor].currentObjectMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.leftNeighbor].currentObjectMask, 0, 0, myMask.width - borderPixels, 0, borderPixels, myMask.height, expandedRT, 0, 0, 0, borderPixels);
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}
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if (t.rightNeighbor && tempRenderData.ContainsKey(t.rightNeighbor) && tempRenderData[t.rightNeighbor].currentObjectMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.rightNeighbor].currentObjectMask, 0, 0, 0, 0, borderPixels, myMask.height, expandedRT, 0, 0, expandedRT.width - borderPixels, borderPixels);
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}
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if (t.bottomNeighbor != null)
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{
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if (tempRenderData.ContainsKey(t.bottomNeighbor) && tempRenderData[t.bottomNeighbor].currentObjectMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.bottomNeighbor].currentObjectMask, 0, 0, 0, myMask.height - borderPixels, myMask.width, borderPixels, expandedRT, 0, 0, borderPixels, 0);
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}
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if (t.bottomNeighbor.leftNeighbor != null && tempRenderData.ContainsKey(t.bottomNeighbor.leftNeighbor) && tempRenderData[t.bottomNeighbor.leftNeighbor].currentObjectMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.bottomNeighbor.leftNeighbor].currentObjectMask, 0, 0, myMask.width - borderPixels, myMask.height - borderPixels, borderPixels, borderPixels, expandedRT, 0, 0, 0, 0);
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}
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if (t.bottomNeighbor.rightNeighbor != null && tempRenderData.ContainsKey(t.bottomNeighbor.rightNeighbor) && tempRenderData[t.bottomNeighbor.rightNeighbor].currentObjectMask != null)
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{
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Graphics.CopyTexture(tempRenderData[t.bottomNeighbor.rightNeighbor].currentObjectMask, 0, 0, 0, myMask.height - borderPixels, borderPixels, borderPixels, expandedRT, 0, 0, expandedRT.width - borderPixels, 0);
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}
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}
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Profiler.EndSample();
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return expandedRT;
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}
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public static RenderTexture GenerateFlowMap(Terrain t, Dictionary<Terrain, RenderTexture> heights)
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{
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int passes = 5;
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float initialWaterLevel = 0.00013f;
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Profiler.BeginSample("Generate Flow Map");
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int padding = 16;
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int outputSize = 512;
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// 512 + (32/4) = 520
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int scaledPadding = Mathf.RoundToInt(padding / (heights[t].width / outputSize));
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int tempSize = outputSize + scaledPadding * 2;
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if (flowShader == null)
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{
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flowShader = Resources.Load<ComputeShader>("MicroVerseComputeFlowMap");
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}
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// 2049 + 64 = 2113
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var heightMapQ = QuadCombine(t, heights, padding);
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// saves about 0.5ms to downsample
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var heightMap = RenderTexture.GetTemporary(outputSize, outputSize, 0, heightMapQ.graphicsFormat);
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Graphics.Blit(heightMapQ, heightMap);
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RenderTexture.ReleaseTemporary(heightMapQ);
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var waterMap = new RenderTexture(tempSize, tempSize, 0, RenderTextureFormat.RHalf, 0);
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var outFlow = new RenderTexture(tempSize, tempSize, 0, RenderTextureFormat.ARGBHalf, 0);
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waterMap.enableRandomWrite = true;
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outFlow.enableRandomWrite = true;
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RenderTextureDescriptor desc = new RenderTextureDescriptor(tempSize, tempSize, RenderTextureFormat.R8, 0);
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desc.enableRandomWrite = true;
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desc.useMipMap = false;
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var velocityMap = RenderTexture.GetTemporary(desc);
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velocityMap.enableRandomWrite = true;
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RenderTexture.active = waterMap;
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GL.Clear(false, true, new Color(initialWaterLevel, 0, 0 , 0));
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int kernal0 = flowShader.FindKernel("CSComputeOutflow");
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int kernal1 = flowShader.FindKernel("CSUpdateWater");
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int kernal2 = flowShader.FindKernel("CSVelocityField");
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int threadSize = 16;
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int dispatchSizeX = Mathf.CeilToInt(tempSize / threadSize);
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int dispatchSizeY = Mathf.CeilToInt(tempSize / threadSize);
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flowShader.SetInt(_Width, tempSize);
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flowShader.SetInt(_Height, tempSize);
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flowShader.SetTexture(kernal0, _WaterMap, waterMap);
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flowShader.SetTexture(kernal0, _OutFlow, outFlow);
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flowShader.SetTexture(kernal0, _HeightMap, heightMap);
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flowShader.SetTexture(kernal0, _VelocityMap, velocityMap);
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flowShader.SetTexture(kernal1, _WaterMap, waterMap);
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flowShader.SetTexture(kernal1, _OutFlow, outFlow);
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flowShader.SetTexture(kernal1, _VelocityMap, velocityMap);
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for (int i = 0; i < passes; i++)
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{
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flowShader.Dispatch(kernal0, dispatchSizeX, dispatchSizeY, 1);
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flowShader.Dispatch(kernal1, dispatchSizeX, dispatchSizeY, 1);
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}
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flowShader.SetTexture(kernal2, _OutFlow, outFlow);
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flowShader.SetTexture(kernal2, _VelocityMap, velocityMap);
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flowShader.Dispatch(kernal2, dispatchSizeX, dispatchSizeY, 1);
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RenderTexture.active = null;
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GameObject.DestroyImmediate(waterMap);
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GameObject.DestroyImmediate(outFlow);
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RenderTexture.ReleaseTemporary(heightMap);
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Profiler.EndSample();
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desc.width = outputSize;
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desc.height = outputSize;
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var velocityMap2 = RenderTexture.GetTemporary(desc);
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Graphics.CopyTexture(velocityMap, 0, 0, scaledPadding, scaledPadding, outputSize, outputSize, velocityMap2, 0, 0, 0, 0);
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RenderTexture.ReleaseTemporary(velocityMap);
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return velocityMap2;
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}
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static Shader normalShader = null;
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static int _Heightmap = Shader.PropertyToID("_Heightmap");
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static int _Heightmap_PX = Shader.PropertyToID("_Heightmap_PX");
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static int _Heightmap_PY = Shader.PropertyToID("_Heightmap_PY");
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static int _Heightmap_NX = Shader.PropertyToID("_Heightmap_NX");
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static int _Heightmap_NY = Shader.PropertyToID("_Heightmap_NY");
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// because Unity defers normal map generation until it's too late
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public static RenderTexture GenerateNormalMap(Terrain t, Dictionary<Terrain, RenderTexture> heightMaps, int width, int height)
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{
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Profiler.BeginSample("Generate Normal");
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if (normalShader == null)
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{
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normalShader = Shader.Find("Hidden/MicroVerse/NormalMapGen");
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}
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var material = new Material(normalShader);
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var desc = new RenderTextureDescriptor(width, height, RenderTextureFormat.ARGB32, 0);
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desc.useMipMap = true;
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var rt = RenderTexture.GetTemporary(desc);
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rt.wrapMode = TextureWrapMode.Clamp;
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RenderTexture.active = rt;
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material.SetTexture(_Heightmap, heightMaps[t]);
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if (t.rightNeighbor && heightMaps.ContainsKey(t.rightNeighbor))
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{
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material.SetTexture(_Heightmap_PX, heightMaps[t.rightNeighbor]);
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material.SetKeyword(new UnityEngine.Rendering.LocalKeyword(material.shader, "_PX"), true);
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}
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if (t.topNeighbor && heightMaps.ContainsKey(t.topNeighbor))
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{
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material.SetTexture(_Heightmap_PY, heightMaps[t.topNeighbor]);
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|
material.SetKeyword(new UnityEngine.Rendering.LocalKeyword(material.shader, "_PY"), true);
|
|
}
|
|
|
|
if (t.leftNeighbor && heightMaps.ContainsKey(t.leftNeighbor))
|
|
{
|
|
material.SetTexture(_Heightmap_NX, heightMaps[t.leftNeighbor]);
|
|
material.EnableKeyword("_NX");
|
|
}
|
|
|
|
if (t.bottomNeighbor && heightMaps.ContainsKey(t.bottomNeighbor))
|
|
{
|
|
material.SetTexture(_Heightmap_NY, heightMaps[t.bottomNeighbor]);
|
|
material.EnableKeyword("_NY");
|
|
}
|
|
|
|
Graphics.Blit(null, rt, material);
|
|
GameObject.DestroyImmediate(material);
|
|
Profiler.EndSample();
|
|
return rt;
|
|
}
|
|
}
|
|
}
|