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Godot Nvidia FXAA 3.11 Port
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| [gd_scene load_steps=3 format=2] | |
| [sub_resource type="Shader" id=1] | |
| code = "shader_type canvas_item; | |
| // Godot Nvidia FXAA 3.11 Port | |
| // Usage: Drop this in to any 3D scene for FXAA! This is a port of the \"PC High Quality Preset 39\". However the medium quality | |
| // parameters are also included. For medium quality, just comment out sections \"PS 6\" and above and uncomment the \"med 13\" variables. | |
| // Motivation: As of this port, Godot's OpenGL ES 2.0 renderer does not natively support any form of anti aliasing. | |
| // I want to port my game High Hat from ES 3.0 to 2.0 to support a wider range of hardware, but without AA, my game looks terrible! | |
| // Note: By all rights the \"lumaScale\" uniform value should be one. I only got good results when I cranked it up to ~6 | |
| // If someone could tell me why this is needed that would be great! | |
| // This software contains source code provided by NVIDIA Corporation. | |
| // This is a derivative of NVIDIA FXAA 3.11 by TIMOTHY LOTTES | |
| // Original source: https://github.com/NVIDIAGameWorks/GraphicsSamples/blob/80e8ba8f5e8935821513207033490735dd3279d8/samples/es3-kepler/FXAA/FXAA3_11.h | |
| // Modifed by Carter Anderson (https://twitter.com/cart_cart) for use in Godot Engine | |
| // Nvidia grants usage of the original FXAA code under the following license: https://github.com/NVIDIAGameWorks/GraphicsSamples/blob/master/license.txt | |
| // As the author of the derivative (Carter Anderson), I grant you (the user) full rights to my changes. | |
| // However if you use this, I am not liable for anything (positive or negative) that results from the use of this code. | |
| // But I shouldn't need to say this. I'm sure you're a cool person :) | |
| uniform float qualitySubpix = 1.0; | |
| uniform float qualityEdgeThreshold = 0.0; | |
| uniform float qualityEdgeThresholdMin = 0.0; | |
| uniform float lumaScale = 1.0; | |
| vec4 FxaaTexOff(sampler2D t, vec2 p, vec2 o, vec2 r) { return textureLod(t, p + (o * r), 0.0); } | |
| float FxaaLuma(vec4 rgba) { return lumaScale * dot(rgba.rgb, vec3(0.299, 0.587, 0.114)); } | |
| float FxaaSat(float x) { return clamp(x, 0.0, 1.0); } | |
| vec4 FxaaPixelShader( | |
| // | |
| // Use noperspective interpolation here (turn off perspective interpolation). | |
| // {xy} = center of pixel | |
| vec2 pos, | |
| // | |
| // Input color texture. | |
| // {rgb_} = color in linear or perceptual color space | |
| // if (FXAA_GREEN_AS_LUMA == 0) | |
| // {___a} = luma in perceptual color space (not linear) | |
| sampler2D tex, | |
| // | |
| // Only used on FXAA Quality. | |
| // This must be from a constant/uniform. | |
| // {x_} = 1.0/screenWidthInPixels | |
| // {_y} = 1.0/screenHeightInPixels | |
| vec2 fxaaQualityRcpFrame, | |
| // | |
| // Only used on FXAA Quality. | |
| // This used to be the FXAA_QUALITY__SUBPIX define. | |
| // It is here now to allow easier tuning. | |
| // Choose the amount of sub-pixel aliasing removal. | |
| // This can effect sharpness. | |
| // 1.00 - upper limit (softer) | |
| // 0.75 - default amount of filtering | |
| // 0.50 - lower limit (sharper, less sub-pixel aliasing removal) | |
| // 0.25 - almost off | |
| // 0.00 - completely off | |
| float fxaaQualitySubpix, | |
| // | |
| // Only used on FXAA Quality. | |
| // This used to be the FXAA_QUALITY__EDGE_THRESHOLD define. | |
| // It is here now to allow easier tuning. | |
| // The minimum amount of local contrast required to apply algorithm. | |
| // 0.333 - too little (faster) | |
| // 0.250 - low quality | |
| // 0.166 - default | |
| // 0.125 - high quality | |
| // 0.063 - overkill (slower) | |
| float fxaaQualityEdgeThreshold, | |
| // | |
| // Only used on FXAA Quality. | |
| // This used to be the FXAA_QUALITY__EDGE_THRESHOLD_MIN define. | |
| // It is here now to allow easier tuning. | |
| // Trims the algorithm from processing darks. | |
| // 0.0833 - upper limit (default, the start of visible unfiltered edges) | |
| // 0.0625 - high quality (faster) | |
| // 0.0312 - visible limit (slower) | |
| // Special notes when using FXAA_GREEN_AS_LUMA, | |
| // Likely want to set this to zero. | |
| // As colors that are mostly not-green | |
| // will appear very dark in the green channel! | |
| // Tune by looking at mostly non-green content, | |
| // then start at zero and increase until aliasing is a problem. | |
| float fxaaQualityEdgeThresholdMin | |
| ) { | |
| // high 39 | |
| float FXAA_QUALITY__P0 = 1.0; | |
| float FXAA_QUALITY__P1 = 1.0; | |
| float FXAA_QUALITY__P2 = 1.0; | |
| float FXAA_QUALITY__P3 = 1.0; | |
| float FXAA_QUALITY__P4 = 1.0; | |
| float FXAA_QUALITY__P5 = 1.5; | |
| float FXAA_QUALITY__P6 = 2.0; | |
| float FXAA_QUALITY__P7 = 2.0; | |
| float FXAA_QUALITY__P8 = 2.0; | |
| float FXAA_QUALITY__P9 = 2.0; | |
| float FXAA_QUALITY__P10 = 4.0; | |
| float FXAA_QUALITY__P11 = 8.0; | |
| // med 13 | |
| // float FXAA_QUALITY__P0 = 1.0; | |
| // float FXAA_QUALITY__P1 = 1.5; | |
| // float FXAA_QUALITY__P2 = 2.0; | |
| // float FXAA_QUALITY__P3 = 2.0; | |
| // float FXAA_QUALITY__P4 = 4.0; | |
| // float FXAA_QUALITY__P5 = 12.0; | |
| vec2 posM; | |
| posM.x = pos.x; | |
| posM.y = pos.y; | |
| vec4 rgbyM = textureLod(tex, posM, 0.0); | |
| float lumaM = FxaaLuma(rgbyM); | |
| float lumaS = FxaaLuma(FxaaTexOff(tex, posM, vec2( 0.0, 1.0), fxaaQualityRcpFrame.xy)); | |
| float lumaE = FxaaLuma(FxaaTexOff(tex, posM, vec2( 1.0, 0.0), fxaaQualityRcpFrame.xy)); | |
| float lumaN = FxaaLuma(FxaaTexOff(tex, posM, vec2( 0.0,-1.0), fxaaQualityRcpFrame.xy)); | |
| float lumaW = FxaaLuma(FxaaTexOff(tex, posM, vec2(-1.0, 0.0), fxaaQualityRcpFrame.xy)); | |
| float maxSM = max(lumaS, lumaM); | |
| float minSM = min(lumaS, lumaM); | |
| float maxESM = max(lumaE, maxSM); | |
| float minESM = min(lumaE, minSM); | |
| float maxWN = max(lumaN, lumaW); | |
| float minWN = min(lumaN, lumaW); | |
| float rangeMax = max(maxWN, maxESM); | |
| float rangeMin = min(minWN, minESM); | |
| float rangeMaxScaled = rangeMax * fxaaQualityEdgeThreshold; | |
| float range = rangeMax - rangeMin; | |
| float rangeMaxClamped = max(fxaaQualityEdgeThresholdMin, rangeMaxScaled); | |
| bool earlyExit = range < rangeMaxClamped; | |
| if(earlyExit) | |
| return rgbyM; | |
| float lumaNW = FxaaLuma(FxaaTexOff(tex, posM, vec2(-1.0,-1.0), fxaaQualityRcpFrame.xy)); | |
| float lumaSE = FxaaLuma(FxaaTexOff(tex, posM, vec2( 1.0, 1.0), fxaaQualityRcpFrame.xy)); | |
| float lumaNE = FxaaLuma(FxaaTexOff(tex, posM, vec2( 1.0,-1.0), fxaaQualityRcpFrame.xy)); | |
| float lumaSW = FxaaLuma(FxaaTexOff(tex, posM, vec2(-1.0, 1.0), fxaaQualityRcpFrame.xy)); | |
| float lumaNS = lumaN + lumaS; | |
| float lumaWE = lumaW + lumaE; | |
| float subpixRcpRange = 1.0/range; | |
| float subpixNSWE = lumaNS + lumaWE; | |
| float edgeHorz1 = (-2.0 * lumaM) + lumaNS; | |
| float edgeVert1 = (-2.0 * lumaM) + lumaWE; | |
| float lumaNESE = lumaNE + lumaSE; | |
| float lumaNWNE = lumaNW + lumaNE; | |
| float edgeHorz2 = (-2.0 * lumaE) + lumaNESE; | |
| float edgeVert2 = (-2.0 * lumaN) + lumaNWNE; | |
| float lumaNWSW = lumaNW + lumaSW; | |
| float lumaSWSE = lumaSW + lumaSE; | |
| float edgeHorz4 = (abs(edgeHorz1) * 2.0) + abs(edgeHorz2); | |
| float edgeVert4 = (abs(edgeVert1) * 2.0) + abs(edgeVert2); | |
| float edgeHorz3 = (-2.0 * lumaW) + lumaNWSW; | |
| float edgeVert3 = (-2.0 * lumaS) + lumaSWSE; | |
| float edgeHorz = abs(edgeHorz3) + edgeHorz4; | |
| float edgeVert = abs(edgeVert3) + edgeVert4; | |
| float subpixNWSWNESE = lumaNWSW + lumaNESE; | |
| float lengthSign = fxaaQualityRcpFrame.x; | |
| bool horzSpan = edgeHorz >= edgeVert; | |
| float subpixA = subpixNSWE * 2.0 + subpixNWSWNESE; | |
| if(!horzSpan) lumaN = lumaW; | |
| if(!horzSpan) lumaS = lumaE; | |
| if(horzSpan) lengthSign = fxaaQualityRcpFrame.y; | |
| float subpixB = (subpixA * (1.0/12.0)) - lumaM; | |
| float gradientN = lumaN - lumaM; | |
| float gradientS = lumaS - lumaM; | |
| float lumaNN = lumaN + lumaM; | |
| float lumaSS = lumaS + lumaM; | |
| bool pairN = abs(gradientN) >= abs(gradientS); | |
| float gradient = max(abs(gradientN), abs(gradientS)); | |
| if(pairN) lengthSign = -lengthSign; | |
| float subpixC = FxaaSat(abs(subpixB) * subpixRcpRange); | |
| vec2 posB; | |
| posB.x = posM.x; | |
| posB.y = posM.y; | |
| vec2 offNP; | |
| offNP.x = (!horzSpan) ? 0.0 : fxaaQualityRcpFrame.x; | |
| offNP.y = ( horzSpan) ? 0.0 : fxaaQualityRcpFrame.y; | |
| if(!horzSpan) posB.x += lengthSign * 0.5; | |
| if( horzSpan) posB.y += lengthSign * 0.5; | |
| vec2 posN; | |
| posN.x = posB.x - offNP.x * FXAA_QUALITY__P0; | |
| posN.y = posB.y - offNP.y * FXAA_QUALITY__P0; | |
| vec2 posP; | |
| posP.x = posB.x + offNP.x * FXAA_QUALITY__P0; | |
| posP.y = posB.y + offNP.y * FXAA_QUALITY__P0; | |
| float subpixD = ((-2.0)*subpixC) + 3.0; | |
| float lumaEndN = FxaaLuma(textureLod(tex, posN, 0.0)); | |
| float subpixE = subpixC * subpixC; | |
| float lumaEndP = FxaaLuma(textureLod(tex, posP, 0.0)); | |
| if(!pairN) lumaNN = lumaSS; | |
| float gradientScaled = gradient * 1.0/4.0; | |
| float lumaMM = lumaM - lumaNN * 0.5; | |
| float subpixF = subpixD * subpixE; | |
| bool lumaMLTZero = lumaMM < 0.0; | |
| lumaEndN -= lumaNN * 0.5; | |
| lumaEndP -= lumaNN * 0.5; | |
| bool doneN = abs(lumaEndN) >= gradientScaled; | |
| bool doneP = abs(lumaEndP) >= gradientScaled; | |
| if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P1; | |
| if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P1; | |
| bool doneNP = (!doneN) || (!doneP); | |
| if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P1; | |
| if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P1; | |
| if(doneNP) { | |
| if(!doneN) lumaEndN = FxaaLuma(textureLod(tex, posN.xy, 0.0)); | |
| if(!doneP) lumaEndP = FxaaLuma(textureLod(tex, posP.xy, 0.0)); | |
| if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5; | |
| if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5; | |
| doneN = abs(lumaEndN) >= gradientScaled; | |
| doneP = abs(lumaEndP) >= gradientScaled; | |
| if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P2; | |
| if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P2; | |
| doneNP = (!doneN) || (!doneP); | |
| if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P2; | |
| if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P2; | |
| // PS 3 | |
| if(doneNP) { | |
| if(!doneN) lumaEndN = FxaaLuma(textureLod(tex, posN.xy, 0.0)); | |
| if(!doneP) lumaEndP = FxaaLuma(textureLod(tex, posP.xy, 0.0)); | |
| if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5; | |
| if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5; | |
| doneN = abs(lumaEndN) >= gradientScaled; | |
| doneP = abs(lumaEndP) >= gradientScaled; | |
| if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P3; | |
| if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P3; | |
| doneNP = (!doneN) || (!doneP); | |
| if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P3; | |
| if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P3; | |
| // PS 4 | |
| if(doneNP) { | |
| if(!doneN) lumaEndN = FxaaLuma(textureLod(tex, posN.xy, 0.0)); | |
| if(!doneP) lumaEndP = FxaaLuma(textureLod(tex, posP.xy, 0.0)); | |
| if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5; | |
| if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5; | |
| doneN = abs(lumaEndN) >= gradientScaled; | |
| doneP = abs(lumaEndP) >= gradientScaled; | |
| if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P4; | |
| if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P4; | |
| doneNP = (!doneN) || (!doneP); | |
| if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P4; | |
| if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P4; | |
| // PS 5 | |
| if(doneNP) { | |
| if(!doneN) lumaEndN = FxaaLuma(textureLod(tex, posN.xy, 0.0)); | |
| if(!doneP) lumaEndP = FxaaLuma(textureLod(tex, posP.xy, 0.0)); | |
| if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5; | |
| if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5; | |
| doneN = abs(lumaEndN) >= gradientScaled; | |
| doneP = abs(lumaEndP) >= gradientScaled; | |
| if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P5; | |
| if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P5; | |
| doneNP = (!doneN) || (!doneP); | |
| if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P5; | |
| if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P5; | |
| // PS 6 | |
| if(doneNP) { | |
| if(!doneN) lumaEndN = FxaaLuma(textureLod(tex, posN.xy, 0.0)); | |
| if(!doneP) lumaEndP = FxaaLuma(textureLod(tex, posP.xy, 0.0)); | |
| if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5; | |
| if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5; | |
| doneN = abs(lumaEndN) >= gradientScaled; | |
| doneP = abs(lumaEndP) >= gradientScaled; | |
| if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P6; | |
| if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P6; | |
| doneNP = (!doneN) || (!doneP); | |
| if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P6; | |
| if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P6; | |
| // PS 7 | |
| if(doneNP) { | |
| if(!doneN) lumaEndN = FxaaLuma(textureLod(tex, posN.xy, 0.0)); | |
| if(!doneP) lumaEndP = FxaaLuma(textureLod(tex, posP.xy, 0.0)); | |
| if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5; | |
| if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5; | |
| doneN = abs(lumaEndN) >= gradientScaled; | |
| doneP = abs(lumaEndP) >= gradientScaled; | |
| if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P7; | |
| if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P7; | |
| doneNP = (!doneN) || (!doneP); | |
| if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P7; | |
| if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P7; | |
| // PS 8 | |
| if(doneNP) { | |
| if(!doneN) lumaEndN = FxaaLuma(textureLod(tex, posN.xy, 0.0)); | |
| if(!doneP) lumaEndP = FxaaLuma(textureLod(tex, posP.xy, 0.0)); | |
| if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5; | |
| if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5; | |
| doneN = abs(lumaEndN) >= gradientScaled; | |
| doneP = abs(lumaEndP) >= gradientScaled; | |
| if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P8; | |
| if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P8; | |
| doneNP = (!doneN) || (!doneP); | |
| if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P8; | |
| if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P8; | |
| // PS 9 | |
| if(doneNP) { | |
| if(!doneN) lumaEndN = FxaaLuma(textureLod(tex, posN.xy, 0.0)); | |
| if(!doneP) lumaEndP = FxaaLuma(textureLod(tex, posP.xy, 0.0)); | |
| if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5; | |
| if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5; | |
| doneN = abs(lumaEndN) >= gradientScaled; | |
| doneP = abs(lumaEndP) >= gradientScaled; | |
| if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P9; | |
| if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P9; | |
| doneNP = (!doneN) || (!doneP); | |
| if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P9; | |
| if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P9; | |
| // PS 10 | |
| if(doneNP) { | |
| if(!doneN) lumaEndN = FxaaLuma(textureLod(tex, posN.xy, 0.0)); | |
| if(!doneP) lumaEndP = FxaaLuma(textureLod(tex, posP.xy, 0.0)); | |
| if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5; | |
| if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5; | |
| doneN = abs(lumaEndN) >= gradientScaled; | |
| doneP = abs(lumaEndP) >= gradientScaled; | |
| if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P10; | |
| if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P10; | |
| doneNP = (!doneN) || (!doneP); | |
| if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P10; | |
| if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P10; | |
| // PS 11 | |
| if(doneNP) { | |
| if(!doneN) lumaEndN = FxaaLuma(textureLod(tex, posN.xy, 0.0)); | |
| if(!doneP) lumaEndP = FxaaLuma(textureLod(tex, posP.xy, 0.0)); | |
| if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5; | |
| if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5; | |
| doneN = abs(lumaEndN) >= gradientScaled; | |
| doneP = abs(lumaEndP) >= gradientScaled; | |
| if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P11; | |
| if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P11; | |
| doneNP = (!doneN) || (!doneP); | |
| if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P11; | |
| if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P11; | |
| // PS 12 | |
| // if(doneNP) { | |
| // if(!doneN) lumaEndN = FxaaLuma(textureLod(tex, posN.xy, 0.0)); | |
| // if(!doneP) lumaEndP = FxaaLuma(textureLod(tex, posP.xy, 0.0)); | |
| // if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5; | |
| // if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5; | |
| // doneN = abs(lumaEndN) >= gradientScaled; | |
| // doneP = abs(lumaEndP) >= gradientScaled; | |
| // if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P12; | |
| // if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P12; | |
| // doneNP = (!doneN) || (!doneP); | |
| // if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P12; | |
| // if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P12; | |
| // } | |
| } | |
| } | |
| } | |
| } | |
| } | |
| } | |
| } | |
| } | |
| } | |
| } | |
| float dstN = posM.x - posN.x; | |
| float dstP = posP.x - posM.x; | |
| if(!horzSpan) dstN = posM.y - posN.y; | |
| if(!horzSpan) dstP = posP.y - posM.y; | |
| bool goodSpanN = (lumaEndN < 0.0) != lumaMLTZero; | |
| float spanLength = (dstP + dstN); | |
| bool goodSpanP = (lumaEndP < 0.0) != lumaMLTZero; | |
| float spanLengthRcp = 1.0/spanLength; | |
| bool directionN = dstN < dstP; | |
| float dst = min(dstN, dstP); | |
| bool goodSpan = directionN ? goodSpanN : goodSpanP; | |
| float subpixG = subpixF * subpixF; | |
| float pixelOffset = (dst * (-spanLengthRcp)) + 0.5; | |
| float subpixH = subpixG * fxaaQualitySubpix; | |
| float pixelOffsetGood = goodSpan ? pixelOffset : 0.0; | |
| float pixelOffsetSubpix = max(pixelOffsetGood, subpixH); | |
| if(!horzSpan) posM.x += pixelOffsetSubpix * lengthSign; | |
| if( horzSpan) posM.y += pixelOffsetSubpix * lengthSign; | |
| return vec4(textureLod(tex, posM, 0.0).xyz, lumaM); | |
| } | |
| void fragment() | |
| { | |
| COLOR = FxaaPixelShader( | |
| SCREEN_UV, | |
| SCREEN_TEXTURE, | |
| SCREEN_PIXEL_SIZE, | |
| qualitySubpix, | |
| qualityEdgeThreshold, | |
| qualityEdgeThresholdMin); | |
| } | |
| " | |
| [sub_resource type="ShaderMaterial" id=2] | |
| shader = SubResource( 1 ) | |
| shader_param/qualitySubpix = 1.0 | |
| shader_param/qualityEdgeThreshold = 0.0 | |
| shader_param/qualityEdgeThresholdMin = 0.0 | |
| shader_param/lumaScale = 6.0 | |
| [node name="FXAA" type="ColorRect"] | |
| material = SubResource( 2 ) | |
| anchor_right = 1.0 | |
| anchor_bottom = 1.0 | |
| mouse_filter = 2 | |
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