421 lines
13 KiB
C#
421 lines
13 KiB
C#
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#if GRIFFIN
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using System.Collections.Generic;
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using UnityEngine;
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using Unity.Jobs;
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using Unity.Burst;
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using Unity.Collections;
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using UnityEngine.Rendering;
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namespace Pinwheel.Griffin.SplineTool
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{
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[GDisplayName("Foliage Spawner")]
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public class GFoliageSpawner : GSplineModifier
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{
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[SerializeField]
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private AnimationCurve falloff;
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public AnimationCurve Falloff
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{
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get
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{
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if (falloff == null)
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{
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falloff = AnimationCurve.EaseInOut(0, 0, 1, 1);
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}
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return falloff;
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}
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set
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{
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falloff = value;
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}
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}
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[SerializeField]
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private bool spawnTrees;
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public bool SpawnTrees
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{
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get
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{
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return spawnTrees;
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}
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set
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{
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spawnTrees = value;
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}
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}
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[SerializeField]
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private bool spawnGrasses;
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public bool SpawnGrasses
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{
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get
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{
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return spawnGrasses;
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}
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set
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{
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spawnGrasses = value;
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}
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}
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[SerializeField]
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private List<int> treePrototypeIndices;
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public List<int> TreePrototypeIndices
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{
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get
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{
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if (treePrototypeIndices == null)
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{
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treePrototypeIndices = new List<int>();
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}
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return treePrototypeIndices;
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}
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set
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{
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treePrototypeIndices = value;
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}
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}
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[SerializeField]
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private List<int> grassPrototypeIndices;
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public List<int> GrassPrototypeIndices
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{
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get
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{
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if (grassPrototypeIndices == null)
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{
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grassPrototypeIndices = new List<int>();
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}
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return grassPrototypeIndices;
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}
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set
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{
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grassPrototypeIndices = value;
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}
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}
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[SerializeField]
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private Texture2D falloffNoise;
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public Texture2D FalloffNoise
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{
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get
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{
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return falloffNoise;
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}
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set
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{
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falloffNoise = value;
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}
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}
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[SerializeField]
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private Vector2 falloffNoiseSize;
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public Vector2 FalloffNoiseSize
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{
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get
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{
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return falloffNoiseSize;
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}
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set
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{
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falloffNoiseSize = value;
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}
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}
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[SerializeField]
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private int maskResolution;
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public int MaskResolution
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{
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get
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{
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return maskResolution;
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}
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set
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{
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maskResolution = Mathf.Clamp(Mathf.ClosestPowerOfTwo(value), GCommon.TEXTURE_SIZE_MIN, GCommon.TEXTURE_SIZE_MAX);
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}
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}
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[SerializeField]
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private float treeDensity;
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public float TreeDensity
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{
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get
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{
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return treeDensity;
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}
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set
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{
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treeDensity = Mathf.Max(0, value);
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}
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}
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[SerializeField]
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private float grassDensity;
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public float GrassDensity
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{
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get
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{
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return grassDensity;
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}
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set
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{
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grassDensity = Mathf.Max(0, value);
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}
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}
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[SerializeField]
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private float minRotation;
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public float MinRotation
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{
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get
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{
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return minRotation;
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}
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set
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{
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minRotation = value;
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}
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}
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[SerializeField]
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private float maxRotation;
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public float MaxRotation
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{
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get
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{
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return maxRotation;
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}
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set
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{
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maxRotation = value;
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}
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}
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[SerializeField]
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private Vector3 minScale;
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public Vector3 MinScale
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{
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get
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{
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return minScale;
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}
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set
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{
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minScale = value;
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}
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}
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[SerializeField]
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private Vector3 maxScale;
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public Vector3 MaxScale
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{
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get
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{
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return maxScale;
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}
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set
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{
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maxScale = value;
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}
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}
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private Texture2D falloffTexture;
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private Material maskMaterial;
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private Material MaskMaterial
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{
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get
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{
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if (maskMaterial == null)
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{
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maskMaterial = new Material(GRuntimeSettings.Instance.internalShaders.splineMaskShader);
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}
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return maskMaterial;
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}
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}
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private static readonly int FALL_OFF = Shader.PropertyToID("_Falloff");
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private static readonly int FALL_OFF_NOISE = Shader.PropertyToID("_FalloffNoise");
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private static readonly int TERRAIN_MASK = Shader.PropertyToID("_TerrainMask");
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public override void Apply()
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{
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if (SplineCreator == null)
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return;
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if (falloffTexture != null)
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Object.DestroyImmediate(falloffTexture);
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Internal_UpdateFalloffTexture();
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List<GStylizedTerrain> terrains = GUtilities.ExtractTerrainsFromOverlapTest(SplineCreator.SweepTest());
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foreach (GStylizedTerrain t in terrains)
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{
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Apply(t);
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}
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}
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private void Apply(GStylizedTerrain t)
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{
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if (t.TerrainData == null)
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return;
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RenderTexture rt = new RenderTexture(MaskResolution, MaskResolution, 0, RenderTextureFormat.ARGB32, RenderTextureReadWrite.Linear);
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Internal_Apply(t, rt);
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Texture2D mask = GCommon.CreateTexture(MaskResolution, Color.clear);
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GCommon.CopyFromRT(mask, rt);
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mask.wrapMode = TextureWrapMode.Clamp;
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t.TerrainData.Foliage.SetTreeRegionDirty(SplineCreator.SweepDirtyRect(t));
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t.TerrainData.Foliage.SetGrassRegionDirty(SplineCreator.SweepDirtyRect(t));
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if (SpawnTrees &&
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t.TerrainData.Foliage.Trees != null &&
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TreePrototypeIndices.Count > 0)
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{
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SpawnTreesOnTerrain(t, mask);
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t.UpdateTreesPosition();
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}
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if (SpawnGrasses &&
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t.TerrainData.Foliage.Grasses != null &&
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GrassPrototypeIndices.Count > 0)
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{
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SpawnGrassesOnTerrain(t, mask);
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t.UpdateGrassPatches();
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}
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t.TerrainData.Foliage.ClearTreeDirtyRegions();
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t.TerrainData.Foliage.ClearGrassDirtyRegions();
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t.TerrainData.SetDirty(GTerrainData.DirtyFlags.Foliage);
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rt.Release();
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GUtilities.DestroyObject(rt);
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GUtilities.DestroyObject(mask);
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}
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private void SpawnTreesOnTerrain(GStylizedTerrain t, Texture2D mask)
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{
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int sampleCount = Mathf.FloorToInt(TreeDensity * t.TerrainData.Geometry.Width * t.TerrainData.Geometry.Length);
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NativeArray<bool> cullResult = new NativeArray<bool>(sampleCount, Allocator.TempJob, NativeArrayOptions.UninitializedMemory);
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NativeArray<GPrototypeInstanceInfo> foliageInfo = new NativeArray<GPrototypeInstanceInfo>(sampleCount, Allocator.TempJob, NativeArrayOptions.UninitializedMemory);
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NativeArray<int> selectedPrototypeIndices = new NativeArray<int>(TreePrototypeIndices.ToArray(), Allocator.TempJob);
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GTextureNativeDataDescriptor<Color32> maskHandle = new GTextureNativeDataDescriptor<Color32>(mask);
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GSampleInstanceJob job = new GSampleInstanceJob()
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{
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cullResult = cullResult,
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instanceInfo = foliageInfo,
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mask = maskHandle,
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selectedPrototypeIndices = selectedPrototypeIndices,
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minRotation = minRotation,
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maxRotation = maxRotation,
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minScale = minScale,
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maxScale = maxScale,
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seed = Random.Range(int.MinValue, int.MaxValue)
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};
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JobHandle jHandle = job.Schedule(sampleCount, 100);
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jHandle.Complete();
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List<GTreeInstance> instances = new List<GTreeInstance>();
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for (int i = 0; i < sampleCount; ++i)
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{
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if (cullResult[i] == false)
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continue;
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GTreeInstance tree = foliageInfo[i].ToTreeInstance();
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instances.Add(tree);
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}
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t.TerrainData.Foliage.AddTreeInstances(instances);
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cullResult.Dispose();
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foliageInfo.Dispose();
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selectedPrototypeIndices.Dispose();
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}
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private void SpawnGrassesOnTerrain(GStylizedTerrain t, Texture2D mask)
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{
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int sampleCount = Mathf.FloorToInt(GrassDensity * t.TerrainData.Geometry.Width * t.TerrainData.Geometry.Length);
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NativeArray<bool> cullResultNA = new NativeArray<bool>(sampleCount, Allocator.TempJob, NativeArrayOptions.UninitializedMemory);
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NativeArray<GPrototypeInstanceInfo> foliageInfoNA = new NativeArray<GPrototypeInstanceInfo>(sampleCount, Allocator.TempJob, NativeArrayOptions.UninitializedMemory);
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NativeArray<int> selectedPrototypeIndicesNA = new NativeArray<int>(GrassPrototypeIndices.ToArray(), Allocator.TempJob);
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GTextureNativeDataDescriptor<Color32> maskHandleNA = new GTextureNativeDataDescriptor<Color32>(mask);
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GSampleInstanceJob job = new GSampleInstanceJob()
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{
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cullResult = cullResultNA,
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instanceInfo = foliageInfoNA,
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mask = maskHandleNA,
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selectedPrototypeIndices = selectedPrototypeIndicesNA,
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minRotation = minRotation,
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maxRotation = maxRotation,
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minScale = minScale,
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maxScale = maxScale,
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seed = Random.Range(int.MinValue, int.MaxValue)
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};
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JobHandle jHandle = job.Schedule(sampleCount, 100);
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jHandle.Complete();
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t.TerrainData.Foliage.AddGrassInstancesWithFilter(cullResultNA, foliageInfoNA);
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cullResultNA.Dispose();
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foliageInfoNA.Dispose();
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selectedPrototypeIndicesNA.Dispose();
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}
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private Material PrepareMaterial(GStylizedTerrain t, RenderTexture rt)
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{
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GCommon.ClearRT(rt);
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Material mat = MaskMaterial;
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mat.SetTexture(FALL_OFF, falloffTexture);
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mat.SetTexture(FALL_OFF_NOISE, FalloffNoise != null ? FalloffNoise : Texture2D.blackTexture);
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mat.SetTextureScale(FALL_OFF_NOISE, new Vector2(
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FalloffNoiseSize.x != 0 ? 1f / FalloffNoiseSize.x : 0,
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FalloffNoiseSize.y != 0 ? 1f / FalloffNoiseSize.y : 0));
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mat.SetTextureOffset(FALL_OFF_NOISE, Vector2.zero);
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if (SplineCreator.EnableTerrainMask)
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{
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mat.SetTexture(TERRAIN_MASK, t.TerrainData.Mask.MaskMapOrDefault);
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}
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else
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{
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mat.SetTexture(TERRAIN_MASK, Texture2D.blackTexture);
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}
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return mat;
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}
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public void Internal_Apply(GStylizedTerrain t, RenderTexture rt)
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{
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Material mat = PrepareMaterial(t, rt);
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SplineCreator.DrawOnTexture(rt, t.Bounds, maskMaterial);
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}
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public void Internal_Apply(GStylizedTerrain t, RenderTexture rt, ScriptableRenderContext context)
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{
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Material mat = PrepareMaterial(t, rt);
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SplineCreator.DrawOnTexture(rt, t.Bounds, maskMaterial, context);
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}
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public void Reset()
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{
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SplineCreator = GetComponent<GSplineCreator>();
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Falloff = AnimationCurve.EaseInOut(0, 0, 1, 1);
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SpawnTrees = true;
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SpawnGrasses = true;
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MaskResolution = 1024;
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TreePrototypeIndices = null;
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GrassPrototypeIndices = null;
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MinRotation = 0;
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MaxRotation = 360;
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||
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MinScale = new Vector3(0.7f, 0.8f, 0.7f);
|
||
|
|
MaxScale = new Vector3(1.2f, 1.5f, 1.2f);
|
||
|
|
}
|
||
|
|
|
||
|
|
public void Internal_UpdateFalloffTexture()
|
||
|
|
{
|
||
|
|
falloffTexture = GCommon.CreateTextureFromCurve(Falloff, 256, 1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif
|