77 lines
3.6 KiB
C#
77 lines
3.6 KiB
C#
using AwesomeTechnologies.Utility;
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using UnityEngine;
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namespace AwesomeTechnologies.VegetationSystem
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{
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public partial class UnityTerrain
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{
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private void SetupHeatmapMaterial()
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{
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TerrainHeatmapMaterial = Instantiate(Resources.Load<Material>("TerrainHeatmap"));
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#if UNITY_2019_3_OR_NEWER
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TerrainHeatmapMaterial.shader = Shader.Find("AwesomeTechnologies/Release/Terrain/BetterShaders_TerrainHeatmap");
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#endif
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}
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public void OverrideTerrainMaterial()
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{
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if (!Terrain) return;
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if (TerrainHeatmapMaterial == null) SetupHeatmapMaterial();
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if (!TerrainMaterialOverridden)
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{
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#if !UNITY_2019_2_OR_NEWER
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_originalTerrainMaterialType = Terrain.materialType;
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#endif
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_originalTerrainMaterial = Terrain.materialTemplate;
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_originalTerrainheightmapPixelError = Terrain.heightmapPixelError;
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_originalBasemapDistance = Terrain.basemapDistance;
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#if UNITY_2018_3_OR_NEWER
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_originalTerrainInstanced = Terrain.drawInstanced;
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Terrain.drawInstanced = false;
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#endif
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TerrainMaterialOverridden = true;
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}
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#if !UNITY_2019_2_OR_NEWER
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Terrain.materialType = Terrain.MaterialType.Custom;
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#endif
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Terrain.materialTemplate = TerrainHeatmapMaterial;
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Terrain.basemapDistance = 0;
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Terrain.heightmapPixelError = 1;
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}
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public void RestoreTerrainMaterial()
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{
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if (!Terrain || !TerrainMaterialOverridden) return;
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#if !UNITY_2019_2_OR_NEWER
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Terrain.materialType = _originalTerrainMaterialType;
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#endif
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Terrain.materialTemplate = _originalTerrainMaterial;
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Terrain.heightmapPixelError = _originalTerrainheightmapPixelError;
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Terrain.basemapDistance = _originalBasemapDistance;
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#if UNITY_2018_3_OR_NEWER
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Terrain.drawInstanced = _originalTerrainInstanced;
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#endif
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TerrainMaterialOverridden = false;
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}
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public void UpdateTerrainMaterial(float worldspaceSeaLevel, float worldspaceMaxTerrainHeight, TerrainTextureSettings terrainTextureSettings)
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{
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if (!TerrainHeatmapMaterial) return;
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TerrainHeatmapMaterial.SetFloat("_TerrainMinHeight", worldspaceSeaLevel);
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TerrainHeatmapMaterial.SetFloat("_TerrainMaxHeight", worldspaceMaxTerrainHeight);
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TerrainHeatmapMaterial.SetFloat("_MinHeight", 0);
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TerrainHeatmapMaterial.SetFloat("_MaxHeight", 0);
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TerrainHeatmapMaterial.SetFloat("_MinSteepness", 0);
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TerrainHeatmapMaterial.SetFloat("_MaxSteepness", 90);
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TerrainHeatmapMaterial.SetTexture("_CurveTexture", new Texture2D(1, 1));
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TerrainHeatmapMaterial.SetFloatArray("_HeightCurve", terrainTextureSettings.TextureHeightCurve.GenerateCurveArray(256));
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TerrainHeatmapMaterial.SetFloatArray("_SteepnessCurve", terrainTextureSettings.TextureSteepnessCurve.GenerateCurveArray(256));
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TerrainHeatmapMaterial.SetFloat("_UseNoise", terrainTextureSettings.UseNoise ? 1 : 0);
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TerrainHeatmapMaterial.SetFloat("_InverseNoise", terrainTextureSettings.InverseNoise ? 1 : 0);
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TerrainHeatmapMaterial.SetFloat("_NoiseScale", terrainTextureSettings.NoiseScale);
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TerrainHeatmapMaterial.SetVector("_NoiseOffset", new Vector4(terrainTextureSettings.NoiseOffset.x,0,terrainTextureSettings.NoiseOffset.y,0));
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}
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}
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}
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