42 lines
2.6 KiB
C#
42 lines
2.6 KiB
C#
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using System;
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using UnityEngine;
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using UnityEngine.Rendering.PostProcessing;
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[Serializable]
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[PostProcess(typeof(PostProcessOutlineRenderer), PostProcessEvent.BeforeStack, "Roystan/Post Process Outline")]
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public sealed class PostProcessOutline : PostProcessEffectSettings
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{
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[Tooltip("Number of pixels between samples that are tested for an edge. When this value is 1, tested samples are adjacent.")]
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public IntParameter scale = new IntParameter { value = 1 };
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public ColorParameter color = new ColorParameter { value = Color.white };
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[Tooltip("Difference between depth values, scaled by the current depth, required to draw an edge.")]
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public FloatParameter depthThreshold = new FloatParameter { value = 1.5f };
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[Range(0, 1), Tooltip("The value at which the dot product between the surface normal and the view direction will affect " +
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"the depth threshold. This ensures that surfaces at right angles to the camera require a larger depth threshold to draw " +
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"an edge, avoiding edges being drawn along slopes.")]
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public FloatParameter depthNormalThreshold = new FloatParameter { value = 0.5f };
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[Tooltip("Scale the strength of how much the depthNormalThreshold affects the depth threshold.")]
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public FloatParameter depthNormalThresholdScale = new FloatParameter { value = 7 };
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[Range(0, 1), Tooltip("Larger values will require the difference between normals to be greater to draw an edge.")]
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public FloatParameter normalThreshold = new FloatParameter { value = 0.4f };
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}
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public sealed class PostProcessOutlineRenderer : PostProcessEffectRenderer<PostProcessOutline>
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{
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public override void Render(PostProcessRenderContext context)
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{
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var sheet = context.propertySheets.Get(Shader.Find("Hidden/Roystan/Outline Post Process"));
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sheet.properties.SetFloat("_Scale", settings.scale);
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sheet.properties.SetColor("_Color", settings.color);
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sheet.properties.SetFloat("_DepthThreshold", settings.depthThreshold);
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sheet.properties.SetFloat("_DepthNormalThreshold", settings.depthNormalThreshold);
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sheet.properties.SetFloat("_DepthNormalThresholdScale", settings.depthNormalThresholdScale);
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sheet.properties.SetFloat("_NormalThreshold", settings.normalThreshold);
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sheet.properties.SetColor("_Color", settings.color);
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Matrix4x4 clipToView = GL.GetGPUProjectionMatrix(context.camera.projectionMatrix, true).inverse;
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sheet.properties.SetMatrix("_ClipToView", clipToView);
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context.command.BlitFullscreenTriangle(context.source, context.destination, sheet, 0);
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}
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}
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