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79 行
2.3 KiB
79 行
2.3 KiB
using UnityEngine;
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using System.Collections;
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[ExecuteInEditMode]
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[RequireComponent (typeof (Camera))]
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[AddComponentMenu ("Image Effects/Edge Detection/Edge Detection")]
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public class EdgeDetection : PostEffectsBase {
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public enum EdgeDetectMode {
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TriangleDepthNormals = 0,
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RobertsCrossDepthNormals = 1,
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SobelDepth = 2,
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SobelDepthThin = 3,
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TriangleLuminance = 4,
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}
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public EdgeDetectMode mode = EdgeDetectMode.SobelDepthThin;
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public float sensitivityDepth = 1.0f;
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public float sensitivityNormals = 1.0f;
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public float lumThreshhold = 0.2f;
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public float edgeExp = 1.0f;
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public float sampleDist = 1.0f;
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public float edgesOnly = 0.0f;
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public Color edgesOnlyBgColor = Color.white;
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public Shader edgeDetectShader;
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private Material edgeDetectMaterial = null;
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private EdgeDetectMode oldMode = EdgeDetectMode.SobelDepthThin;
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public override bool CheckResources (){
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CheckSupport (true);
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edgeDetectMaterial = CheckShaderAndCreateMaterial (edgeDetectShader,edgeDetectMaterial);
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if (mode != oldMode)
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SetCameraFlag ();
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oldMode = mode;
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if (!isSupported)
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ReportAutoDisable ();
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return isSupported;
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}
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new void Start (){
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oldMode = mode;
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}
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void SetCameraFlag (){
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if (mode == EdgeDetectMode.SobelDepth || mode == EdgeDetectMode.SobelDepthThin)
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GetComponent<Camera>().depthTextureMode |= DepthTextureMode.Depth;
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else if (mode == EdgeDetectMode.TriangleDepthNormals || mode == EdgeDetectMode.RobertsCrossDepthNormals)
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GetComponent<Camera>().depthTextureMode |= DepthTextureMode.DepthNormals;
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}
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void OnEnable (){
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SetCameraFlag();
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}
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[ImageEffectOpaque]
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void OnRenderImage ( RenderTexture source , RenderTexture destination ){
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if (CheckResources () == false) {
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Graphics.Blit (source, destination);
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return;
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}
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Vector2 sensitivity = new Vector2 (sensitivityDepth, sensitivityNormals);
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edgeDetectMaterial.SetVector ("_Sensitivity", new Vector4 (sensitivity.x, sensitivity.y, 1.0f, sensitivity.y));
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edgeDetectMaterial.SetFloat ("_BgFade", edgesOnly);
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edgeDetectMaterial.SetFloat ("_SampleDistance", sampleDist);
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edgeDetectMaterial.SetVector ("_BgColor", edgesOnlyBgColor);
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edgeDetectMaterial.SetFloat ("_Exponent", edgeExp);
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edgeDetectMaterial.SetFloat ("_Threshold", lumThreshhold);
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Graphics.Blit (source, destination, edgeDetectMaterial, (int) mode);
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}
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}
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