Tweak the tree hiding shader

2026-08-03 15:28:37 +02:00
parent a01e19e5fe
commit 3cd1ca53fd
17 changed files with 4694 additions and 30 deletions
@@ -0,0 +1,119 @@
+using System;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Toria.Game
+{
+	[RequireComponent(typeof(CapsuleCollider))]
+	public class DitherFade : MonoBehaviour
+	{
+		public DitherFadeSettings settings;
+		public List<Renderer> targetRenderers;
+		public bool makeShadowClones = true;
+
+		[NonSerialized]
+		List<Material> fadeMaterials;
+
+		static RPGController player = null;
+		static new Camera camera = null;
+
+		[NonSerialized]
+		bool shouldHide = false;
+
+		void Start()
+		{
+			fadeMaterials = new List<Material>();
+
+			foreach (Renderer renderer in targetRenderers)
+			{
+				if (makeShadowClones)
+					MakeShadowClone(renderer);
+
+				Material mat = Instantiate(renderer.sharedMaterial);
+				renderer.sharedMaterial = mat;
+				fadeMaterials.Add(mat);
+			}
+		}
+
+		void MakeShadowClone(Renderer renderer)
+		{
+			if (!renderer.TryGetComponent(out MeshFilter filter))
+				return;
+
+			GameObject shadowClone = new GameObject("Shadow clone");
+
+			shadowClone.transform.SetParent(renderer.transform);
+			shadowClone.transform.SetLocalPositionAndRotation(Vector3.zero, Quaternion.identity);
+			shadowClone.transform.localScale = Vector3.one;
+
+			MeshRenderer shadowRenderer = shadowClone.AddComponent<MeshRenderer>();
+			MeshFilter shadowFilter = shadowClone.AddComponent<MeshFilter>();
+
+			shadowRenderer.sharedMaterial = renderer.sharedMaterial;
+			shadowRenderer.shadowCastingMode = UnityEngine.Rendering.ShadowCastingMode.ShadowsOnly;
+
+			shadowFilter.sharedMesh = filter.sharedMesh;
+
+			foreach (Component comp in shadowClone.GetComponents<Component>())
+			{
+				if (comp is not MeshRenderer && comp is not MeshFilter && comp is not Transform)
+					Destroy(comp);
+			}
+			renderer.shadowCastingMode = UnityEngine.Rendering.ShadowCastingMode.Off;
+		}
+
+		void Update()
+		{
+			if (!player)
+				player = FindAnyObjectByType<RPGController>();
+
+			if (shouldHide)
+			{
+				Vector2 viewPortPoint = camera.WorldToViewportPoint(player.transform.position + Vector3.up * settings.verticalOffset);
+				float hideRadius = settings.GetHideRadius(player.transform, camera.transform);
+
+				foreach (Material mat in fadeMaterials)
+				{
+					mat.SetVector("_PlayerPosition", viewPortPoint);
+					mat.SetFloat("_HideRadius", hideRadius);
+				}
+			}
+
+			if (!camera)
+				camera = Camera.main;
+
+			if (!player || !camera)
+				return;
+
+			Vector3 playerPos = player.transform.position + Vector3.up;
+			Vector3 cameraPos = camera.transform.position;
+
+			Vector3 rayDir = (playerPos - cameraPos).normalized;
+
+			//move back the origin point so the raycast doesn't start from within a tree collider
+			RaycastHit[] hits = Physics.RaycastAll(cameraPos + rayDir * -100f, rayDir, float.PositiveInfinity, 1 << gameObject.layer, QueryTriggerInteraction.Collide);
+
+			for (int i = 0; i < hits.Length; i++)
+			{
+				if (hits[i].collider.gameObject == gameObject)
+				{
+					SetCutoutEnabled(true);
+					return;
+				}
+			}
+
+			SetCutoutEnabled(false);
+		}
+
+		void SetCutoutEnabled(bool enabled)
+		{
+			if (shouldHide == enabled)
+				return;
+
+			shouldHide = enabled;
+
+			foreach (Material mat in fadeMaterials)
+				mat.SetFloat("_ShouldHide", enabled ? 1 : 0);
+		}
+	}
+}