大修

Assets/Shaders/ScriptablePostProcessor/Volumes/Sharpen.cs

@@ -0,0 +1,48 @@
+using Echovoid.Runtime.Behavior.Rendering;
+using UnityEngine;
+using UnityEngine.Rendering;
+using UnityEngine.Rendering.Universal;
+
+namespace SLSUtilities.Rendering.PostProcessing
+{
+    [System.Serializable, VolumeComponentMenu("SLS/Postprocessing/Sharpen")]
+    public class Sharpen : ScriptablePostProcessorVolume
+    {
+        // 放在所有后处理之后，对最终画面进行锐化
+        public override CustomPostProcessInjectionPoint InjectionPoint => CustomPostProcessInjectionPoint.AfterPostProcess;
+        // 排序靠后，确保是最后几步操作之一
+        public override int OrderInInjectionPoint => 10;
+
+        [Header("General Settings")]
+        [Tooltip("锐化强度。值越大画面越锋利。建议范围 0.5 - 2.0。过大会导致失真。")]
+        public ClampedFloatParameter sharpness = new(0f, 0f, 5f);
+
+        [Header("Optimizations (Visual Quality)")]
+        [Tooltip("对比度阈值（降噪）。\n只有当像素差异大于此值时才锐化。\n增加此值可避免平坦区域（如天空、皮肤）出现噪点。\n建议值：0.01 - 0.05。")]
+        public ClampedFloatParameter threshold = new(0.01f, 0f, 0.2f);
+
+        [Tooltip("最大亮度钳制（防光晕）。\n限制像素亮度的最大变化幅度，防止边缘出现刺眼的白边或黑边。\n减小此值可让锐化更自然。\n建议值：0.1 - 0.3。")]
+        public ClampedFloatParameter clamp = new(0.2f, 0f, 1f);
+
+        public override string GetShaderName() => "SLS/Postprocessing/Sharpen";
+
+        public override void Render(CommandBuffer cmd, ref RenderingData renderingData, RTHandle source, RTHandle destination)
+        {
+            if (material == null) return;
+
+            Vector4 paramsVec = new Vector4(
+                sharpness.value,
+                threshold.value,
+                clamp.value,
+                0 // unused
+            );
+            
+            material.SetVector(InternalShaderHelpers.ID._SharpnessParams, paramsVec);
+
+            Blitter.BlitCameraTexture(cmd, source, destination, material, 0);
+        }
+
+        // 只有强度大于 0 时才激活
+        public override bool IsActive() => sharpness.value > 0f;
+    }
+}