68 lines
3.5 KiB
C#
68 lines
3.5 KiB
C#
using Echovoid.Runtime.Behavior.Rendering;
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using UnityEngine;
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using UnityEngine.Rendering;
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using UnityEngine.Rendering.Universal;
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namespace SLSFramework.Rendering.PostProcessing
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{
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[System.Serializable, VolumeComponentMenu("Custom/Speed Lines")]
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public class SpeedLines : ScriptablePostProcessorVolume
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{
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// 注入点：这决定了你的效果在 URP 渲染的哪个阶段执行
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// AfterPostProcess 意味着它会在所有内置后处理（如 Bloom, Vignette）之后运行
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public override CustomPostProcessInjectionPoint InjectionPoint => CustomPostProcessInjectionPoint.AfterPostProcess;
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public override int OrderInInjectionPoint => 20; // 调整执行顺序
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[Header("Effect Color & Intensity")]
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// 对应原 Shader 的 _Colour
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// 我们将 Alpha 通道 (a) 用作效果的总体强度
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public ColorParameter color = new(new Color(1f, 1f, 1f, 0.5f), true, true, true);
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[Header("Lines")]
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// 对应 _SpeedLinesTiling
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public FloatParameter speedLinesTiling = new(200f);
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// 对应 _SpeedLinesRadialScale
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public ClampedFloatParameter speedLinesRadialScale = new(0.1f, 0f, 10f);
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// 对应 _SpeedLinesPower
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public FloatParameter speedLinesPower = new(0f);
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// 对应 _SpeedLinesRemap
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public ClampedFloatParameter speedLinesRemap = new(1f, 0f, 1f);
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// 对应 _SpeedLinesAnimation
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public FloatParameter speedLinesAnimation = new(3f);
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[Header("Radial Mask")]
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// 对应 _MaskScale
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public ClampedFloatParameter maskScale = new(1f, 0f, 2f);
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// 对应 _MaskHardness
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public ClampedFloatParameter maskHardness = new(0f, 0f, 1f);
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// 对应 _MaskPower
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public FloatParameter maskPower = new(5f);
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// 告诉框架这个效果的 Shader "外壳" 文件叫什么名字
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protected override string GetShaderName() => "Hidden/Custom/SpeedLines";
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// 这是 "激活" 逻辑。我们检查颜色参数的 alpha 值。
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// 原 Shader 使用 alpha 混合，所以 alpha 为 0 意味着效果不可见。
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public override bool IsActive() => speedLinesRemap.value < 1f || color.value.a > 0f;
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// Render() 函数：每一帧将 C# 中的参数值发送到 GPU
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public override void Render(CommandBuffer cmd, ref RenderingData renderingData, RTHandle source, RTHandle target)
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{
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if (material == null) return;
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// 将所有 Volume 参数设置到 Material 上
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material.SetColor(InternalShaderHelpers.ID._SpeedLinesColour, color.value);
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material.SetFloat(InternalShaderHelpers.ID._SpeedLinesTiling, speedLinesTiling.value);
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material.SetFloat(InternalShaderHelpers.ID._SpeedLinesRadialScale, speedLinesRadialScale.value);
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material.SetFloat(InternalShaderHelpers.ID._SpeedLinesPower, speedLinesPower.value);
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material.SetFloat(InternalShaderHelpers.ID._SpeedLinesRemap, speedLinesRemap.value);
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material.SetFloat(InternalShaderHelpers.ID._SpeedLinesAnimation, speedLinesAnimation.value);
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material.SetFloat(InternalShaderHelpers.ID._MaskScale, maskScale.value);
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material.SetFloat(InternalShaderHelpers.ID._MaskHardness, maskHardness.value);
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material.SetFloat(InternalShaderHelpers.ID._MaskPower, maskPower.value);
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// 执行 Blit，使用 Shader 的第 0 个 Pass
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Blitter.BlitCameraTexture(cmd, source, target, material, 0);
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}
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}
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} |