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87 lines
3.2 KiB
JavaScript
87 lines
3.2 KiB
JavaScript
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#pragma strict
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@script ExecuteInEditMode
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@script RequireComponent (Camera)
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@script AddComponentMenu ("Image Effects/Vignette and Chromatic Aberration")
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class Vignetting extends PostEffectsBase {
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public var intensity : float = 0.375f;
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public var chromaticAberration : float = 0.2f;
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public var blur : float = 0.1f;
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public var blurSpread : float = 1.5f;
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// needed shaders & materials
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public var vignetteShader : Shader;
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private var vignetteMaterial : Material;
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public var separableBlurShader : Shader;
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private var separableBlurMaterial : Material;
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public var chromAberrationShader : Shader;
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private var chromAberrationMaterial : Material;
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function OnDisable()
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{
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if (vignetteMaterial)
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DestroyImmediate(vignetteMaterial);
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if (separableBlurMaterial)
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DestroyImmediate(separableBlurMaterial);
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if (chromAberrationMaterial)
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DestroyImmediate(chromAberrationMaterial);
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}
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function CheckResources () : boolean {
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CheckSupport (false);
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vignetteMaterial = CheckShaderAndCreateMaterial (vignetteShader, vignetteMaterial);
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separableBlurMaterial = CheckShaderAndCreateMaterial (separableBlurShader, separableBlurMaterial);
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chromAberrationMaterial = CheckShaderAndCreateMaterial (chromAberrationShader, chromAberrationMaterial);
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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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function OnRenderImage (source : RenderTexture, destination : RenderTexture) {
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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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var widthOverHeight : float = (1.0f * source.width) / (1.0f * source.height);
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var oneOverBaseSize : float = 1.0f / 512.0f;
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var color : RenderTexture = RenderTexture.GetTemporary (source.width, source.height, 0);
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var halfRezColor : RenderTexture = RenderTexture.GetTemporary (source.width / 2.0, source.height / 2.0, 0);
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var quarterRezColor : RenderTexture = RenderTexture.GetTemporary (source.width / 4.0, source.height / 4.0, 0);
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var secondQuarterRezColor : RenderTexture = RenderTexture.GetTemporary (source.width / 4.0, source.height / 4.0, 0);
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Graphics.Blit (source, halfRezColor, chromAberrationMaterial, 0);
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Graphics.Blit (halfRezColor, quarterRezColor);
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for (var it : int = 0; it < 2; it++ ) {
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separableBlurMaterial.SetVector ("offsets", Vector4 (0.0, blurSpread * oneOverBaseSize, 0.0, 0.0));
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Graphics.Blit (quarterRezColor, secondQuarterRezColor, separableBlurMaterial);
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separableBlurMaterial.SetVector ("offsets", Vector4 (blurSpread * oneOverBaseSize / widthOverHeight, 0.0, 0.0, 0.0));
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Graphics.Blit (secondQuarterRezColor, quarterRezColor, separableBlurMaterial);
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}
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vignetteMaterial.SetFloat ("_Intensity", intensity);
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vignetteMaterial.SetFloat ("_Blur", blur);
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vignetteMaterial.SetTexture ("_VignetteTex", quarterRezColor);
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Graphics.Blit (source, color, vignetteMaterial);
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chromAberrationMaterial.SetFloat ("_ChromaticAberration", chromaticAberration);
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Graphics.Blit (color, destination, chromAberrationMaterial, 1);
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RenderTexture.ReleaseTemporary (color);
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RenderTexture.ReleaseTemporary (halfRezColor);
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RenderTexture.ReleaseTemporary (quarterRezColor);
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RenderTexture.ReleaseTemporary (secondQuarterRezColor);
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}
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} |