113 lines
4.4 KiB
C#
113 lines
4.4 KiB
C#
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.Rendering;
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namespace HighlightPlus {
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public partial class HighlightEffect : MonoBehaviour {
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static List<HighlightSeeThroughOccluder> occluders = new List<HighlightSeeThroughOccluder>();
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static Dictionary<Camera, int> occludersFrameCount = new Dictionary<Camera, int>();
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static CommandBuffer cbOccluder;
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static Material fxMatOccluder;
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static RaycastHit[] hits;
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bool cancelSeeThroughThisFrame;
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public static void RegisterOccluder(HighlightSeeThroughOccluder occluder) {
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if (!occluders.Contains(occluder)) {
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occluders.Add(occluder);
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}
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}
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public static void UnregisterOccluder(HighlightSeeThroughOccluder occluder) {
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if (occluders.Contains(occluder)) {
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occluders.Remove(occluder);
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}
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}
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public void RenderOccluders(CommandBuffer cb, Camera cam) {
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int occludersCount = occluders.Count;
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if (occludersCount == 0 || rmsCount == 0) return;
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Vector3 camPos = cam.transform.position;
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bool useRayCastCheck = false;
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// Check if raycast method is needed
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for (int k = 0; k < occludersCount; k++) {
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HighlightSeeThroughOccluder occluder = occluders[k];
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if (occluder == null || !occluder.isActiveAndEnabled) continue;
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if (occluder.detectionMethod == DetectionMethod.RayCast) {
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useRayCastCheck = true;
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break;
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}
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}
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if (useRayCastCheck) {
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// Compute bounds
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Bounds bounds = new Bounds();
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for (int r = 0; r < rms.Length; r++) {
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if (rms[r].renderer != null) {
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if (bounds.size.x == 0) {
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bounds = rms[r].renderer.bounds;
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} else {
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bounds.Encapsulate(rms[r].renderer.bounds);
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}
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}
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}
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Vector3 pos = bounds.center;
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Vector3 offset = pos - camPos;
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float maxDistance = Vector3.Distance(pos, camPos);
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if (hits == null || hits.Length == 0) {
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hits = new RaycastHit[64];
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}
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int hitCount = Physics.BoxCastNonAlloc(pos - offset, bounds.extents * 0.9f, offset.normalized, hits, Quaternion.identity, maxDistance);
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for (int k = 0; k < hitCount; k++) {
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for (int j = 0; j < occludersCount; j++) {
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if (hits[k].collider.transform == occluders[j].transform) {
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cancelSeeThroughThisFrame = true;
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return;
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}
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}
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}
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}
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int lastFrameCount;
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occludersFrameCount.TryGetValue(cam, out lastFrameCount);
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int currentFrameCount = Time.frameCount;
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if (currentFrameCount == lastFrameCount) return;
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occludersFrameCount[cam] = currentFrameCount;
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if (cbOccluder == null) {
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cbOccluder = new CommandBuffer();
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cbOccluder.name = "Occluder";
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}
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if (fxMatOccluder == null) {
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InitMaterial(ref fxMatOccluder, "HighlightPlus/Geometry/SeeThroughOccluder");
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if (fxMatOccluder == null) return;
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}
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for (int k = 0; k < occludersCount; k++) {
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HighlightSeeThroughOccluder occluder = occluders[k];
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if (occluder == null || !occluder.isActiveAndEnabled) continue;
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if (occluder.detectionMethod == DetectionMethod.Stencil) {
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if (occluder.meshData == null || occluder.meshData.Length == 0) continue;
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// Per renderer
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for (int m = 0; m < occluder.meshData.Length; m++) {
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// Per submesh
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Renderer renderer = occluder.meshData[m].renderer;
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if (renderer.isVisible) {
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for (int s = 0; s < occluder.meshData[m].subMeshCount; s++) {
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cb.DrawRenderer(renderer, fxMatOccluder, s);
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}
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}
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}
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}
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}
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}
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}
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}
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