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423 lines
17 KiB
JavaScript
423 lines
17 KiB
JavaScript
1 month ago
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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/Depth of Field (3.4)")
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enum Dof34QualitySetting {
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OnlyBackground = 1,
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BackgroundAndForeground = 2,
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}
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enum DofResolution {
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High = 2,
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Medium = 3,
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Low = 4,
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}
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enum DofBlurriness {
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Low = 1,
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High = 2,
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VeryHigh = 4,
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}
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enum BokehDestination {
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Background = 0x1,
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Foreground = 0x2,
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BackgroundAndForeground = 0x3,
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}
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class DepthOfField34 extends PostEffectsBase {
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static private var SMOOTH_DOWNSAMPLE_PASS : int = 6;
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static private var BOKEH_EXTRA_BLUR : float = 2.0f;
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public var quality : Dof34QualitySetting = Dof34QualitySetting.OnlyBackground;
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public var resolution : DofResolution = DofResolution.Low;
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public var simpleTweakMode : boolean = true;
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public var focalPoint : float = 1.0f;
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public var smoothness : float = 0.5f;
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public var focalZDistance : float = 0.0f;
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public var focalZStartCurve : float = 1.0f;
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public var focalZEndCurve : float = 1.0f;
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private var focalStartCurve : float = 2.0f;
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private var focalEndCurve : float = 2.0f;
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private var focalDistance01 : float = 0.1f;
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public var objectFocus : Transform = null;
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public var focalSize : float = 0.0f;
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public var bluriness : DofBlurriness = DofBlurriness.High;
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public var maxBlurSpread : float = 1.75f;
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public var foregroundBlurExtrude : float = 1.15f;
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public var dofBlurShader : Shader;
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private var dofBlurMaterial : Material = null;
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public var dofShader : Shader;
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private var dofMaterial : Material = null;
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public var visualize : boolean = false;
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public var bokehDestination : BokehDestination = BokehDestination.Background;
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private var widthOverHeight : float = 1.25f;
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private var oneOverBaseSize : float = 1.0f / 512.0f;
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public var bokeh : boolean = false;
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public var bokehSupport : boolean = true;
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public var bokehShader : Shader;
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public var bokehTexture : Texture2D;
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public var bokehScale : float = 2.4f;
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public var bokehIntensity : float = 0.15f;
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public var bokehThreshholdContrast : float = 0.1f;
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public var bokehThreshholdLuminance : float = 0.55f;
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public var bokehDownsample : int = 1;
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private var bokehMaterial : Material;
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function CreateMaterials () {
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dofBlurMaterial = CheckShaderAndCreateMaterial (dofBlurShader, dofBlurMaterial);
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dofMaterial = CheckShaderAndCreateMaterial (dofShader,dofMaterial);
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bokehSupport = bokehShader.isSupported;
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if(bokeh && bokehSupport && bokehShader)
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bokehMaterial = CheckShaderAndCreateMaterial (bokehShader, bokehMaterial);
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}
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function CheckResources () : boolean {
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CheckSupport (true);
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dofBlurMaterial = CheckShaderAndCreateMaterial (dofBlurShader, dofBlurMaterial);
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dofMaterial = CheckShaderAndCreateMaterial (dofShader,dofMaterial);
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bokehSupport = bokehShader.isSupported;
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if(bokeh && bokehSupport && bokehShader)
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bokehMaterial = CheckShaderAndCreateMaterial (bokehShader, bokehMaterial);
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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 OnDisable () {
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Quads.Cleanup ();
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if (dofBlurMaterial)
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DestroyImmediate(dofBlurMaterial);
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if (dofMaterial)
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DestroyImmediate(dofMaterial);
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if (bokehMaterial)
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DestroyImmediate(bokehMaterial);
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}
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function OnEnable() {
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camera.depthTextureMode |= DepthTextureMode.Depth;
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}
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function FocalDistance01 (worldDist : float) : float {
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return camera.WorldToViewportPoint((worldDist-camera.nearClipPlane) * camera.transform.forward + camera.transform.position).z / (camera.farClipPlane-camera.nearClipPlane);
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}
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function GetDividerBasedOnQuality () {
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var divider : int = 1;
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if (resolution == DofResolution.Medium)
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divider = 2;
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else if (resolution == DofResolution.Low)
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divider = 2;
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return divider;
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}
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function GetLowResolutionDividerBasedOnQuality (baseDivider : int) {
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var lowTexDivider : int = baseDivider;
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if (resolution == DofResolution.High)
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lowTexDivider *= 2;
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if (resolution == DofResolution.Low)
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lowTexDivider *= 2;
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return lowTexDivider;
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}
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private var foregroundTexture : RenderTexture = null;
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private var mediumRezWorkTexture : RenderTexture = null;
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private var finalDefocus : RenderTexture = null;
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private var lowRezWorkTexture : RenderTexture = null;
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private var bokehSource : RenderTexture = null;
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private var bokehSource2 : RenderTexture = null;
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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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if (smoothness < 0.1f)
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smoothness = 0.1f;
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// update needed focal & rt size parameter
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bokeh = bokeh && bokehSupport;
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var bokehBlurAmplifier : float = bokeh ? BOKEH_EXTRA_BLUR : 1.0f;
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var blurForeground : boolean = quality > Dof34QualitySetting.OnlyBackground;
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var focal01Size : float = focalSize / (camera.farClipPlane - camera.nearClipPlane);;
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if (simpleTweakMode) {
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focalDistance01 = objectFocus ? (camera.WorldToViewportPoint (objectFocus.position)).z / (camera.farClipPlane) : FocalDistance01 (focalPoint);
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focalStartCurve = focalDistance01 * smoothness;
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focalEndCurve = focalStartCurve;
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blurForeground = blurForeground && (focalPoint > (camera.nearClipPlane + Mathf.Epsilon));
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}
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else {
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if(objectFocus) {
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var vpPoint = camera.WorldToViewportPoint (objectFocus.position);
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vpPoint.z = (vpPoint.z) / (camera.farClipPlane);
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focalDistance01 = vpPoint.z;
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}
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else
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focalDistance01 = FocalDistance01 (focalZDistance);
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focalStartCurve = focalZStartCurve;
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focalEndCurve = focalZEndCurve;
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blurForeground = blurForeground && (focalPoint > (camera.nearClipPlane + Mathf.Epsilon));
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}
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widthOverHeight = (1.0f * source.width) / (1.0f * source.height);
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oneOverBaseSize = 1.0f / 512.0f;
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dofMaterial.SetFloat ("_ForegroundBlurExtrude", foregroundBlurExtrude);
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dofMaterial.SetVector ("_CurveParams", Vector4 (simpleTweakMode ? 1.0f / focalStartCurve : focalStartCurve, simpleTweakMode ? 1.0f / focalEndCurve : focalEndCurve, focal01Size * 0.5, focalDistance01));
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dofMaterial.SetVector ("_InvRenderTargetSize", Vector4 (1.0 / (1.0 * source.width), 1.0 / (1.0 * source.height),0.0,0.0));
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var divider : int = GetDividerBasedOnQuality ();
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var lowTexDivider : int = GetLowResolutionDividerBasedOnQuality (divider);
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AllocateTextures (blurForeground, source, divider, lowTexDivider);
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// WRITE COC to alpha channel
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// source is only being bound to detect y texcoord flip
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Graphics.Blit (source, source, dofMaterial, 3);
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// better DOWNSAMPLE (could actually be weighted for higher quality)
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Downsample (source, mediumRezWorkTexture);
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// BLUR A LITTLE first, which has two purposes
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// 1.) reduce jitter, noise, aliasing
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// 2.) produce the little-blur buffer used in composition later
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Blur (mediumRezWorkTexture, mediumRezWorkTexture, DofBlurriness.Low, 4, maxBlurSpread);
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if (bokeh && (bokehDestination & BokehDestination.Background)) {
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dofMaterial.SetVector ("_Threshhold", Vector4(bokehThreshholdContrast, bokehThreshholdLuminance, 0.95f, 0.0f));
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// add and mark the parts that should end up as bokeh shapes
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Graphics.Blit (mediumRezWorkTexture, bokehSource2, dofMaterial, 11);
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// remove those parts (maybe even a little tittle bittle more) from the regurlarly blurred buffer
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//Graphics.Blit (mediumRezWorkTexture, lowRezWorkTexture, dofMaterial, 10);
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Graphics.Blit (mediumRezWorkTexture, lowRezWorkTexture);//, dofMaterial, 10);
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// maybe you want to reblur the small blur ... but not really needed.
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//Blur (mediumRezWorkTexture, mediumRezWorkTexture, DofBlurriness.Low, 4, maxBlurSpread);
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// bigger BLUR
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Blur (lowRezWorkTexture, lowRezWorkTexture, bluriness, 0, maxBlurSpread * bokehBlurAmplifier);
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}
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else {
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// bigger BLUR
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Downsample (mediumRezWorkTexture, lowRezWorkTexture);
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Blur (lowRezWorkTexture, lowRezWorkTexture, bluriness, 0, maxBlurSpread);
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}
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dofBlurMaterial.SetTexture ("_TapLow", lowRezWorkTexture);
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dofBlurMaterial.SetTexture ("_TapMedium", mediumRezWorkTexture);
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Graphics.Blit (null, finalDefocus, dofBlurMaterial, 3);
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// we are only adding bokeh now if the background is the only part we have to deal with
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if (bokeh && (bokehDestination & BokehDestination.Background))
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AddBokeh (bokehSource2, bokehSource, finalDefocus);
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dofMaterial.SetTexture ("_TapLowBackground", finalDefocus);
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dofMaterial.SetTexture ("_TapMedium", mediumRezWorkTexture); // needed for debugging/visualization
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// FINAL DEFOCUS (background)
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Graphics.Blit (source, blurForeground ? foregroundTexture : destination, dofMaterial, visualize ? 2 : 0);
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// FINAL DEFOCUS (foreground)
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if (blurForeground) {
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// WRITE COC to alpha channel
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Graphics.Blit (foregroundTexture, source, dofMaterial, 5);
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// DOWNSAMPLE (unweighted)
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Downsample (source, mediumRezWorkTexture);
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// BLUR A LITTLE first, which has two purposes
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// 1.) reduce jitter, noise, aliasing
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// 2.) produce the little-blur buffer used in composition later
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BlurFg (mediumRezWorkTexture, mediumRezWorkTexture, DofBlurriness.Low, 2, maxBlurSpread);
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if (bokeh && (bokehDestination & BokehDestination.Foreground)) {
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dofMaterial.SetVector ("_Threshhold", Vector4(bokehThreshholdContrast * 0.5f, bokehThreshholdLuminance, 0.0f, 0.0f));
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// add and mark the parts that should end up as bokeh shapes
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Graphics.Blit (mediumRezWorkTexture, bokehSource2, dofMaterial, 11);
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// remove the parts (maybe even a little tittle bittle more) that will end up in bokeh space
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//Graphics.Blit (mediumRezWorkTexture, lowRezWorkTexture, dofMaterial, 10);
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Graphics.Blit (mediumRezWorkTexture, lowRezWorkTexture);//, dofMaterial, 10);
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// big BLUR
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BlurFg (lowRezWorkTexture, lowRezWorkTexture, bluriness, 1, maxBlurSpread * bokehBlurAmplifier);
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}
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else {
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// big BLUR
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BlurFg (mediumRezWorkTexture, lowRezWorkTexture, bluriness, 1, maxBlurSpread);
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}
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// simple upsample once
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Graphics.Blit (lowRezWorkTexture, finalDefocus);
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dofMaterial.SetTexture ("_TapLowForeground", finalDefocus);
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Graphics.Blit (source, destination, dofMaterial, visualize ? 1 : 4);
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if (bokeh && (bokehDestination & BokehDestination.Foreground))
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AddBokeh (bokehSource2, bokehSource, destination);
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}
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ReleaseTextures ();
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}
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function Blur (from : RenderTexture, to : RenderTexture, iterations : DofBlurriness, blurPass: int, spread : float) {
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var tmp : RenderTexture = RenderTexture.GetTemporary (to.width, to.height);
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if (iterations > 1) {
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BlurHex (from, to, blurPass, spread, tmp);
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if (iterations > 2) {
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dofBlurMaterial.SetVector ("offsets", Vector4 (0.0, spread * oneOverBaseSize, 0.0, 0.0));
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Graphics.Blit (to, tmp, dofBlurMaterial, blurPass);
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dofBlurMaterial.SetVector ("offsets", Vector4 (spread / widthOverHeight * oneOverBaseSize, 0.0, 0.0, 0.0));
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Graphics.Blit (tmp, to, dofBlurMaterial, blurPass);
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}
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}
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else {
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dofBlurMaterial.SetVector ("offsets", Vector4 (0.0, spread * oneOverBaseSize, 0.0, 0.0));
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Graphics.Blit (from, tmp, dofBlurMaterial, blurPass);
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dofBlurMaterial.SetVector ("offsets", Vector4 (spread / widthOverHeight * oneOverBaseSize, 0.0, 0.0, 0.0));
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Graphics.Blit (tmp, to, dofBlurMaterial, blurPass);
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}
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RenderTexture.ReleaseTemporary (tmp);
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}
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function BlurFg (from : RenderTexture, to : RenderTexture, iterations : DofBlurriness, blurPass: int, spread : float) {
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// we want a nice, big coc, hence we need to tap once from this (higher resolution) texture
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dofBlurMaterial.SetTexture ("_TapHigh", from);
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var tmp : RenderTexture = RenderTexture.GetTemporary (to.width, to.height);
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if (iterations > 1) {
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BlurHex (from, to, blurPass, spread, tmp);
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if (iterations > 2) {
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dofBlurMaterial.SetVector ("offsets", Vector4 (0.0, spread * oneOverBaseSize, 0.0, 0.0));
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Graphics.Blit (to, tmp, dofBlurMaterial, blurPass);
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dofBlurMaterial.SetVector ("offsets", Vector4 (spread / widthOverHeight * oneOverBaseSize, 0.0, 0.0, 0.0));
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Graphics.Blit (tmp, to, dofBlurMaterial, blurPass);
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}
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}
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else {
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dofBlurMaterial.SetVector ("offsets", Vector4 (0.0, spread * oneOverBaseSize, 0.0, 0.0));
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Graphics.Blit (from, tmp, dofBlurMaterial, blurPass);
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dofBlurMaterial.SetVector ("offsets", Vector4 (spread / widthOverHeight * oneOverBaseSize, 0.0, 0.0, 0.0));
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Graphics.Blit (tmp, to, dofBlurMaterial, blurPass);
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}
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RenderTexture.ReleaseTemporary (tmp);
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|
}
|
||
|
|
|
||
|
|
function BlurHex (from : RenderTexture, to : RenderTexture, blurPass: int, spread : float, tmp : RenderTexture) {
|
||
|
|
dofBlurMaterial.SetVector ("offsets", Vector4 (0.0, spread * oneOverBaseSize, 0.0, 0.0));
|
||
|
|
Graphics.Blit (from, tmp, dofBlurMaterial, blurPass);
|
||
|
|
dofBlurMaterial.SetVector ("offsets", Vector4 (spread / widthOverHeight * oneOverBaseSize, 0.0, 0.0, 0.0));
|
||
|
|
Graphics.Blit (tmp, to, dofBlurMaterial, blurPass);
|
||
|
|
dofBlurMaterial.SetVector ("offsets", Vector4 (spread / widthOverHeight * oneOverBaseSize, spread * oneOverBaseSize, 0.0, 0.0));
|
||
|
|
Graphics.Blit (to, tmp, dofBlurMaterial, blurPass);
|
||
|
|
dofBlurMaterial.SetVector ("offsets", Vector4 (spread / widthOverHeight * oneOverBaseSize, -spread * oneOverBaseSize, 0.0, 0.0));
|
||
|
|
Graphics.Blit (tmp, to, dofBlurMaterial, blurPass);
|
||
|
|
}
|
||
|
|
|
||
|
|
function Downsample (from : RenderTexture, to : RenderTexture) {
|
||
|
|
dofMaterial.SetVector ("_InvRenderTargetSize", Vector4 (1.0f / (1.0f * to.width), 1.0f / (1.0f * to.height), 0.0f, 0.0f));
|
||
|
|
Graphics.Blit (from, to, dofMaterial, SMOOTH_DOWNSAMPLE_PASS);
|
||
|
|
}
|
||
|
|
|
||
|
|
function AddBokeh (bokehInfo : RenderTexture, tempTex : RenderTexture, finalTarget : RenderTexture) {
|
||
|
|
if (bokehMaterial) {
|
||
|
|
var meshes : Mesh[] = Quads.GetMeshes (tempTex.width, tempTex.height); // quads: exchanging more triangles with less overdraw
|
||
|
|
|
||
|
|
RenderTexture.active = tempTex;
|
||
|
|
GL.Clear (false, true, Color (0.0f, 0.0f, 0.0f, 0.0f));
|
||
|
|
|
||
|
|
GL.PushMatrix ();
|
||
|
|
GL.LoadIdentity ();
|
||
|
|
|
||
|
|
// point filter mode is important, otherwise we get bokeh shape & size artefacts
|
||
|
|
bokehInfo.filterMode = FilterMode.Point;
|
||
|
|
|
||
|
|
var arW : float = (bokehInfo.width * 1.0f) / (bokehInfo.height * 1.0f);
|
||
|
|
var sc : float = 2.0f / (1.0f * bokehInfo.width);
|
||
|
|
sc += bokehScale * maxBlurSpread * BOKEH_EXTRA_BLUR * oneOverBaseSize;
|
||
|
|
|
||
|
|
bokehMaterial.SetTexture ("_Source", bokehInfo);
|
||
|
|
bokehMaterial.SetTexture ("_MainTex", bokehTexture);
|
||
|
|
bokehMaterial.SetVector ("_ArScale", Vector4 (sc, sc * arW, 0.5f, 0.5f * arW));
|
||
|
|
bokehMaterial.SetFloat ("_Intensity", bokehIntensity);
|
||
|
|
bokehMaterial.SetPass (0);
|
||
|
|
|
||
|
|
for (var m : Mesh in meshes)
|
||
|
|
if (m) Graphics.DrawMeshNow (m, Matrix4x4.identity);
|
||
|
|
|
||
|
|
GL.PopMatrix ();
|
||
|
|
|
||
|
|
Graphics.Blit (tempTex, finalTarget, dofMaterial, 8);
|
||
|
|
|
||
|
|
// important to set back as we sample from this later on
|
||
|
|
bokehInfo.filterMode = FilterMode.Bilinear;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function ReleaseTextures () {
|
||
|
|
if (foregroundTexture) RenderTexture.ReleaseTemporary (foregroundTexture);
|
||
|
|
if (finalDefocus) RenderTexture.ReleaseTemporary (finalDefocus);
|
||
|
|
if (mediumRezWorkTexture) RenderTexture.ReleaseTemporary (mediumRezWorkTexture);
|
||
|
|
if (lowRezWorkTexture) RenderTexture.ReleaseTemporary (lowRezWorkTexture);
|
||
|
|
if (bokehSource) RenderTexture.ReleaseTemporary (bokehSource);
|
||
|
|
if (bokehSource2) RenderTexture.ReleaseTemporary (bokehSource2);
|
||
|
|
}
|
||
|
|
|
||
|
|
function AllocateTextures (blurForeground : boolean, source : RenderTexture, divider : int, lowTexDivider : int) {
|
||
|
|
foregroundTexture = null;
|
||
|
|
if (blurForeground)
|
||
|
|
foregroundTexture = RenderTexture.GetTemporary (source.width, source.height, 0);
|
||
|
|
mediumRezWorkTexture = RenderTexture.GetTemporary (source.width / divider, source.height / divider, 0);
|
||
|
|
finalDefocus = RenderTexture.GetTemporary (source.width / divider, source.height / divider, 0);
|
||
|
|
lowRezWorkTexture = RenderTexture.GetTemporary (source.width / lowTexDivider, source.height / lowTexDivider, 0);
|
||
|
|
bokehSource = null;
|
||
|
|
bokehSource2 = null;
|
||
|
|
if (bokeh) {
|
||
|
|
bokehSource = RenderTexture.GetTemporary (source.width / (lowTexDivider * bokehDownsample), source.height / (lowTexDivider * bokehDownsample), 0, RenderTextureFormat.ARGBHalf);
|
||
|
|
bokehSource2 = RenderTexture.GetTemporary (source.width / (lowTexDivider * bokehDownsample), source.height / (lowTexDivider * bokehDownsample), 0, RenderTextureFormat.ARGBHalf);
|
||
|
|
bokehSource.filterMode = FilterMode.Bilinear;
|
||
|
|
bokehSource2.filterMode = FilterMode.Bilinear;
|
||
|
|
RenderTexture.active = bokehSource2;
|
||
|
|
GL.Clear (false, true, Color(0.0f, 0.0f, 0.0f, 0.0f));
|
||
|
|
}
|
||
|
|
|
||
|
|
// to make sure: always use bilinear filter setting
|
||
|
|
|
||
|
|
source.filterMode = FilterMode.Bilinear;
|
||
|
|
finalDefocus.filterMode = FilterMode.Bilinear;
|
||
|
|
mediumRezWorkTexture.filterMode = FilterMode.Bilinear;
|
||
|
|
lowRezWorkTexture.filterMode = FilterMode.Bilinear;
|
||
|
|
if (foregroundTexture)
|
||
|
|
foregroundTexture.filterMode = FilterMode.Bilinear;
|
||
|
|
}
|
||
|
|
}
|