import {
|
Vector2
|
} from '../../three.module.js';
|
|
/**
|
* NVIDIA FXAA by Timothy Lottes
|
* http://timothylottes.blogspot.com/2011/06/fxaa3-source-released.html
|
* - WebGL port by @supereggbert
|
* http://www.glge.org/demos/fxaa/
|
*/
|
|
const FXAAShader = {
|
|
uniforms: {
|
|
'tDiffuse': { value: null },
|
'resolution': { value: new Vector2( 1 / 1024, 1 / 512 ) }
|
|
},
|
|
vertexShader: /* glsl */`
|
|
varying vec2 vUv;
|
|
void main() {
|
|
vUv = uv;
|
gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
|
|
}`,
|
|
fragmentShader:
|
|
// FXAA 3.11 implementation by NVIDIA, ported to WebGL by Agost Biro (biro@archilogic.com)
|
|
//----------------------------------------------------------------------------------
|
// File: es3-kepler\FXAA\assets\shaders/FXAA_DefaultES.frag
|
// SDK Version: v3.00
|
// Email: gameworks@nvidia.com
|
// Site: http://developer.nvidia.com/
|
//
|
// Copyright (c) 2014-2015, NVIDIA CORPORATION. All rights reserved.
|
//
|
// Redistribution and use in source and binary forms, with or without
|
// modification, are permitted provided that the following conditions
|
// are met:
|
// * Redistributions of source code must retain the above copyright
|
// notice, this list of conditions and the following disclaimer.
|
// * Redistributions in binary form must reproduce the above copyright
|
// notice, this list of conditions and the following disclaimer in the
|
// documentation and/or other materials provided with the distribution.
|
// * Neither the name of NVIDIA CORPORATION nor the names of its
|
// contributors may be used to endorse or promote products derived
|
// from this software without specific prior written permission.
|
//
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS\'\' AND ANY
|
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
//
|
//----------------------------------------------------------------------------------
|
|
/* glsl */`
|
|
precision highp float;
|
|
uniform sampler2D tDiffuse;
|
|
uniform vec2 resolution;
|
|
varying vec2 vUv;
|
|
#define FXAA_PC 1
|
#define FXAA_GLSL_100 1
|
#define FXAA_QUALITY_PRESET 12
|
|
#define FXAA_GREEN_AS_LUMA 1
|
|
/*--------------------------------------------------------------------------*/
|
#ifndef FXAA_PC_CONSOLE
|
//
|
// The console algorithm for PC is included
|
// for developers targeting really low spec machines.
|
// Likely better to just run FXAA_PC, and use a really low preset.
|
//
|
#define FXAA_PC_CONSOLE 0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#ifndef FXAA_GLSL_120
|
#define FXAA_GLSL_120 0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#ifndef FXAA_GLSL_130
|
#define FXAA_GLSL_130 0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#ifndef FXAA_HLSL_3
|
#define FXAA_HLSL_3 0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#ifndef FXAA_HLSL_4
|
#define FXAA_HLSL_4 0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#ifndef FXAA_HLSL_5
|
#define FXAA_HLSL_5 0
|
#endif
|
/*==========================================================================*/
|
#ifndef FXAA_GREEN_AS_LUMA
|
//
|
// For those using non-linear color,
|
// and either not able to get luma in alpha, or not wanting to,
|
// this enables FXAA to run using green as a proxy for luma.
|
// So with this enabled, no need to pack luma in alpha.
|
//
|
// This will turn off AA on anything which lacks some amount of green.
|
// Pure red and blue or combination of only R and B, will get no AA.
|
//
|
// Might want to lower the settings for both,
|
// fxaaConsoleEdgeThresholdMin
|
// fxaaQualityEdgeThresholdMin
|
// In order to insure AA does not get turned off on colors
|
// which contain a minor amount of green.
|
//
|
// 1 = On.
|
// 0 = Off.
|
//
|
#define FXAA_GREEN_AS_LUMA 0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#ifndef FXAA_EARLY_EXIT
|
//
|
// Controls algorithm\'s early exit path.
|
// On PS3 turning this ON adds 2 cycles to the shader.
|
// On 360 turning this OFF adds 10ths of a millisecond to the shader.
|
// Turning this off on console will result in a more blurry image.
|
// So this defaults to on.
|
//
|
// 1 = On.
|
// 0 = Off.
|
//
|
#define FXAA_EARLY_EXIT 1
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#ifndef FXAA_DISCARD
|
//
|
// Only valid for PC OpenGL currently.
|
// Probably will not work when FXAA_GREEN_AS_LUMA = 1.
|
//
|
// 1 = Use discard on pixels which don\'t need AA.
|
// For APIs which enable concurrent TEX+ROP from same surface.
|
// 0 = Return unchanged color on pixels which don\'t need AA.
|
//
|
#define FXAA_DISCARD 0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#ifndef FXAA_FAST_PIXEL_OFFSET
|
//
|
// Used for GLSL 120 only.
|
//
|
// 1 = GL API supports fast pixel offsets
|
// 0 = do not use fast pixel offsets
|
//
|
#ifdef GL_EXT_gpu_shader4
|
#define FXAA_FAST_PIXEL_OFFSET 1
|
#endif
|
#ifdef GL_NV_gpu_shader5
|
#define FXAA_FAST_PIXEL_OFFSET 1
|
#endif
|
#ifdef GL_ARB_gpu_shader5
|
#define FXAA_FAST_PIXEL_OFFSET 1
|
#endif
|
#ifndef FXAA_FAST_PIXEL_OFFSET
|
#define FXAA_FAST_PIXEL_OFFSET 0
|
#endif
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#ifndef FXAA_GATHER4_ALPHA
|
//
|
// 1 = API supports gather4 on alpha channel.
|
// 0 = API does not support gather4 on alpha channel.
|
//
|
#if (FXAA_HLSL_5 == 1)
|
#define FXAA_GATHER4_ALPHA 1
|
#endif
|
#ifdef GL_ARB_gpu_shader5
|
#define FXAA_GATHER4_ALPHA 1
|
#endif
|
#ifdef GL_NV_gpu_shader5
|
#define FXAA_GATHER4_ALPHA 1
|
#endif
|
#ifndef FXAA_GATHER4_ALPHA
|
#define FXAA_GATHER4_ALPHA 0
|
#endif
|
#endif
|
|
|
/*============================================================================
|
FXAA QUALITY - TUNING KNOBS
|
------------------------------------------------------------------------------
|
NOTE the other tuning knobs are now in the shader function inputs!
|
============================================================================*/
|
#ifndef FXAA_QUALITY_PRESET
|
//
|
// Choose the quality preset.
|
// This needs to be compiled into the shader as it effects code.
|
// Best option to include multiple presets is to
|
// in each shader define the preset, then include this file.
|
//
|
// OPTIONS
|
// -----------------------------------------------------------------------
|
// 10 to 15 - default medium dither (10=fastest, 15=highest quality)
|
// 20 to 29 - less dither, more expensive (20=fastest, 29=highest quality)
|
// 39 - no dither, very expensive
|
//
|
// NOTES
|
// -----------------------------------------------------------------------
|
// 12 = slightly faster then FXAA 3.9 and higher edge quality (default)
|
// 13 = about same speed as FXAA 3.9 and better than 12
|
// 23 = closest to FXAA 3.9 visually and performance wise
|
// _ = the lowest digit is directly related to performance
|
// _ = the highest digit is directly related to style
|
//
|
#define FXAA_QUALITY_PRESET 12
|
#endif
|
|
|
/*============================================================================
|
|
FXAA QUALITY - PRESETS
|
|
============================================================================*/
|
|
/*============================================================================
|
FXAA QUALITY - MEDIUM DITHER PRESETS
|
============================================================================*/
|
#if (FXAA_QUALITY_PRESET == 10)
|
#define FXAA_QUALITY_PS 3
|
#define FXAA_QUALITY_P0 1.5
|
#define FXAA_QUALITY_P1 3.0
|
#define FXAA_QUALITY_P2 12.0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PRESET == 11)
|
#define FXAA_QUALITY_PS 4
|
#define FXAA_QUALITY_P0 1.0
|
#define FXAA_QUALITY_P1 1.5
|
#define FXAA_QUALITY_P2 3.0
|
#define FXAA_QUALITY_P3 12.0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PRESET == 12)
|
#define FXAA_QUALITY_PS 5
|
#define FXAA_QUALITY_P0 1.0
|
#define FXAA_QUALITY_P1 1.5
|
#define FXAA_QUALITY_P2 2.0
|
#define FXAA_QUALITY_P3 4.0
|
#define FXAA_QUALITY_P4 12.0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PRESET == 13)
|
#define FXAA_QUALITY_PS 6
|
#define FXAA_QUALITY_P0 1.0
|
#define FXAA_QUALITY_P1 1.5
|
#define FXAA_QUALITY_P2 2.0
|
#define FXAA_QUALITY_P3 2.0
|
#define FXAA_QUALITY_P4 4.0
|
#define FXAA_QUALITY_P5 12.0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PRESET == 14)
|
#define FXAA_QUALITY_PS 7
|
#define FXAA_QUALITY_P0 1.0
|
#define FXAA_QUALITY_P1 1.5
|
#define FXAA_QUALITY_P2 2.0
|
#define FXAA_QUALITY_P3 2.0
|
#define FXAA_QUALITY_P4 2.0
|
#define FXAA_QUALITY_P5 4.0
|
#define FXAA_QUALITY_P6 12.0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PRESET == 15)
|
#define FXAA_QUALITY_PS 8
|
#define FXAA_QUALITY_P0 1.0
|
#define FXAA_QUALITY_P1 1.5
|
#define FXAA_QUALITY_P2 2.0
|
#define FXAA_QUALITY_P3 2.0
|
#define FXAA_QUALITY_P4 2.0
|
#define FXAA_QUALITY_P5 2.0
|
#define FXAA_QUALITY_P6 4.0
|
#define FXAA_QUALITY_P7 12.0
|
#endif
|
|
/*============================================================================
|
FXAA QUALITY - LOW DITHER PRESETS
|
============================================================================*/
|
#if (FXAA_QUALITY_PRESET == 20)
|
#define FXAA_QUALITY_PS 3
|
#define FXAA_QUALITY_P0 1.5
|
#define FXAA_QUALITY_P1 2.0
|
#define FXAA_QUALITY_P2 8.0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PRESET == 21)
|
#define FXAA_QUALITY_PS 4
|
#define FXAA_QUALITY_P0 1.0
|
#define FXAA_QUALITY_P1 1.5
|
#define FXAA_QUALITY_P2 2.0
|
#define FXAA_QUALITY_P3 8.0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PRESET == 22)
|
#define FXAA_QUALITY_PS 5
|
#define FXAA_QUALITY_P0 1.0
|
#define FXAA_QUALITY_P1 1.5
|
#define FXAA_QUALITY_P2 2.0
|
#define FXAA_QUALITY_P3 2.0
|
#define FXAA_QUALITY_P4 8.0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PRESET == 23)
|
#define FXAA_QUALITY_PS 6
|
#define FXAA_QUALITY_P0 1.0
|
#define FXAA_QUALITY_P1 1.5
|
#define FXAA_QUALITY_P2 2.0
|
#define FXAA_QUALITY_P3 2.0
|
#define FXAA_QUALITY_P4 2.0
|
#define FXAA_QUALITY_P5 8.0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PRESET == 24)
|
#define FXAA_QUALITY_PS 7
|
#define FXAA_QUALITY_P0 1.0
|
#define FXAA_QUALITY_P1 1.5
|
#define FXAA_QUALITY_P2 2.0
|
#define FXAA_QUALITY_P3 2.0
|
#define FXAA_QUALITY_P4 2.0
|
#define FXAA_QUALITY_P5 3.0
|
#define FXAA_QUALITY_P6 8.0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PRESET == 25)
|
#define FXAA_QUALITY_PS 8
|
#define FXAA_QUALITY_P0 1.0
|
#define FXAA_QUALITY_P1 1.5
|
#define FXAA_QUALITY_P2 2.0
|
#define FXAA_QUALITY_P3 2.0
|
#define FXAA_QUALITY_P4 2.0
|
#define FXAA_QUALITY_P5 2.0
|
#define FXAA_QUALITY_P6 4.0
|
#define FXAA_QUALITY_P7 8.0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PRESET == 26)
|
#define FXAA_QUALITY_PS 9
|
#define FXAA_QUALITY_P0 1.0
|
#define FXAA_QUALITY_P1 1.5
|
#define FXAA_QUALITY_P2 2.0
|
#define FXAA_QUALITY_P3 2.0
|
#define FXAA_QUALITY_P4 2.0
|
#define FXAA_QUALITY_P5 2.0
|
#define FXAA_QUALITY_P6 2.0
|
#define FXAA_QUALITY_P7 4.0
|
#define FXAA_QUALITY_P8 8.0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PRESET == 27)
|
#define FXAA_QUALITY_PS 10
|
#define FXAA_QUALITY_P0 1.0
|
#define FXAA_QUALITY_P1 1.5
|
#define FXAA_QUALITY_P2 2.0
|
#define FXAA_QUALITY_P3 2.0
|
#define FXAA_QUALITY_P4 2.0
|
#define FXAA_QUALITY_P5 2.0
|
#define FXAA_QUALITY_P6 2.0
|
#define FXAA_QUALITY_P7 2.0
|
#define FXAA_QUALITY_P8 4.0
|
#define FXAA_QUALITY_P9 8.0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PRESET == 28)
|
#define FXAA_QUALITY_PS 11
|
#define FXAA_QUALITY_P0 1.0
|
#define FXAA_QUALITY_P1 1.5
|
#define FXAA_QUALITY_P2 2.0
|
#define FXAA_QUALITY_P3 2.0
|
#define FXAA_QUALITY_P4 2.0
|
#define FXAA_QUALITY_P5 2.0
|
#define FXAA_QUALITY_P6 2.0
|
#define FXAA_QUALITY_P7 2.0
|
#define FXAA_QUALITY_P8 2.0
|
#define FXAA_QUALITY_P9 4.0
|
#define FXAA_QUALITY_P10 8.0
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PRESET == 29)
|
#define FXAA_QUALITY_PS 12
|
#define FXAA_QUALITY_P0 1.0
|
#define FXAA_QUALITY_P1 1.5
|
#define FXAA_QUALITY_P2 2.0
|
#define FXAA_QUALITY_P3 2.0
|
#define FXAA_QUALITY_P4 2.0
|
#define FXAA_QUALITY_P5 2.0
|
#define FXAA_QUALITY_P6 2.0
|
#define FXAA_QUALITY_P7 2.0
|
#define FXAA_QUALITY_P8 2.0
|
#define FXAA_QUALITY_P9 2.0
|
#define FXAA_QUALITY_P10 4.0
|
#define FXAA_QUALITY_P11 8.0
|
#endif
|
|
/*============================================================================
|
FXAA QUALITY - EXTREME QUALITY
|
============================================================================*/
|
#if (FXAA_QUALITY_PRESET == 39)
|
#define FXAA_QUALITY_PS 12
|
#define FXAA_QUALITY_P0 1.0
|
#define FXAA_QUALITY_P1 1.0
|
#define FXAA_QUALITY_P2 1.0
|
#define FXAA_QUALITY_P3 1.0
|
#define FXAA_QUALITY_P4 1.0
|
#define FXAA_QUALITY_P5 1.5
|
#define FXAA_QUALITY_P6 2.0
|
#define FXAA_QUALITY_P7 2.0
|
#define FXAA_QUALITY_P8 2.0
|
#define FXAA_QUALITY_P9 2.0
|
#define FXAA_QUALITY_P10 4.0
|
#define FXAA_QUALITY_P11 8.0
|
#endif
|
|
|
|
/*============================================================================
|
|
API PORTING
|
|
============================================================================*/
|
#if (FXAA_GLSL_100 == 1) || (FXAA_GLSL_120 == 1) || (FXAA_GLSL_130 == 1)
|
#define FxaaBool bool
|
#define FxaaDiscard discard
|
#define FxaaFloat float
|
#define FxaaFloat2 vec2
|
#define FxaaFloat3 vec3
|
#define FxaaFloat4 vec4
|
#define FxaaHalf float
|
#define FxaaHalf2 vec2
|
#define FxaaHalf3 vec3
|
#define FxaaHalf4 vec4
|
#define FxaaInt2 ivec2
|
#define FxaaSat(x) clamp(x, 0.0, 1.0)
|
#define FxaaTex sampler2D
|
#else
|
#define FxaaBool bool
|
#define FxaaDiscard clip(-1)
|
#define FxaaFloat float
|
#define FxaaFloat2 float2
|
#define FxaaFloat3 float3
|
#define FxaaFloat4 float4
|
#define FxaaHalf half
|
#define FxaaHalf2 half2
|
#define FxaaHalf3 half3
|
#define FxaaHalf4 half4
|
#define FxaaSat(x) saturate(x)
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_GLSL_100 == 1)
|
#define FxaaTexTop(t, p) texture2D(t, p, 0.0)
|
#define FxaaTexOff(t, p, o, r) texture2D(t, p + (o * r), 0.0)
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_GLSL_120 == 1)
|
// Requires,
|
// #version 120
|
// And at least,
|
// #extension GL_EXT_gpu_shader4 : enable
|
// (or set FXAA_FAST_PIXEL_OFFSET 1 to work like DX9)
|
#define FxaaTexTop(t, p) texture2DLod(t, p, 0.0)
|
#if (FXAA_FAST_PIXEL_OFFSET == 1)
|
#define FxaaTexOff(t, p, o, r) texture2DLodOffset(t, p, 0.0, o)
|
#else
|
#define FxaaTexOff(t, p, o, r) texture2DLod(t, p + (o * r), 0.0)
|
#endif
|
#if (FXAA_GATHER4_ALPHA == 1)
|
// use #extension GL_ARB_gpu_shader5 : enable
|
#define FxaaTexAlpha4(t, p) textureGather(t, p, 3)
|
#define FxaaTexOffAlpha4(t, p, o) textureGatherOffset(t, p, o, 3)
|
#define FxaaTexGreen4(t, p) textureGather(t, p, 1)
|
#define FxaaTexOffGreen4(t, p, o) textureGatherOffset(t, p, o, 1)
|
#endif
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_GLSL_130 == 1)
|
// Requires "#version 130" or better
|
#define FxaaTexTop(t, p) textureLod(t, p, 0.0)
|
#define FxaaTexOff(t, p, o, r) textureLodOffset(t, p, 0.0, o)
|
#if (FXAA_GATHER4_ALPHA == 1)
|
// use #extension GL_ARB_gpu_shader5 : enable
|
#define FxaaTexAlpha4(t, p) textureGather(t, p, 3)
|
#define FxaaTexOffAlpha4(t, p, o) textureGatherOffset(t, p, o, 3)
|
#define FxaaTexGreen4(t, p) textureGather(t, p, 1)
|
#define FxaaTexOffGreen4(t, p, o) textureGatherOffset(t, p, o, 1)
|
#endif
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_HLSL_3 == 1)
|
#define FxaaInt2 float2
|
#define FxaaTex sampler2D
|
#define FxaaTexTop(t, p) tex2Dlod(t, float4(p, 0.0, 0.0))
|
#define FxaaTexOff(t, p, o, r) tex2Dlod(t, float4(p + (o * r), 0, 0))
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_HLSL_4 == 1)
|
#define FxaaInt2 int2
|
struct FxaaTex { SamplerState smpl; Texture2D tex; };
|
#define FxaaTexTop(t, p) t.tex.SampleLevel(t.smpl, p, 0.0)
|
#define FxaaTexOff(t, p, o, r) t.tex.SampleLevel(t.smpl, p, 0.0, o)
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_HLSL_5 == 1)
|
#define FxaaInt2 int2
|
struct FxaaTex { SamplerState smpl; Texture2D tex; };
|
#define FxaaTexTop(t, p) t.tex.SampleLevel(t.smpl, p, 0.0)
|
#define FxaaTexOff(t, p, o, r) t.tex.SampleLevel(t.smpl, p, 0.0, o)
|
#define FxaaTexAlpha4(t, p) t.tex.GatherAlpha(t.smpl, p)
|
#define FxaaTexOffAlpha4(t, p, o) t.tex.GatherAlpha(t.smpl, p, o)
|
#define FxaaTexGreen4(t, p) t.tex.GatherGreen(t.smpl, p)
|
#define FxaaTexOffGreen4(t, p, o) t.tex.GatherGreen(t.smpl, p, o)
|
#endif
|
|
|
/*============================================================================
|
GREEN AS LUMA OPTION SUPPORT FUNCTION
|
============================================================================*/
|
#if (FXAA_GREEN_AS_LUMA == 0)
|
FxaaFloat FxaaLuma(FxaaFloat4 rgba) { return rgba.w; }
|
#else
|
FxaaFloat FxaaLuma(FxaaFloat4 rgba) { return rgba.y; }
|
#endif
|
|
|
|
|
/*============================================================================
|
|
FXAA3 QUALITY - PC
|
|
============================================================================*/
|
#if (FXAA_PC == 1)
|
/*--------------------------------------------------------------------------*/
|
FxaaFloat4 FxaaPixelShader(
|
//
|
// Use noperspective interpolation here (turn off perspective interpolation).
|
// {xy} = center of pixel
|
FxaaFloat2 pos,
|
//
|
// Used only for FXAA Console, and not used on the 360 version.
|
// Use noperspective interpolation here (turn off perspective interpolation).
|
// {xy_} = upper left of pixel
|
// {_zw} = lower right of pixel
|
FxaaFloat4 fxaaConsolePosPos,
|
//
|
// 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)
|
FxaaTex tex,
|
//
|
// Only used on the optimized 360 version of FXAA Console.
|
// For everything but 360, just use the same input here as for "tex".
|
// For 360, same texture, just alias with a 2nd sampler.
|
// This sampler needs to have an exponent bias of -1.
|
FxaaTex fxaaConsole360TexExpBiasNegOne,
|
//
|
// Only used on the optimized 360 version of FXAA Console.
|
// For everything but 360, just use the same input here as for "tex".
|
// For 360, same texture, just alias with a 3nd sampler.
|
// This sampler needs to have an exponent bias of -2.
|
FxaaTex fxaaConsole360TexExpBiasNegTwo,
|
//
|
// Only used on FXAA Quality.
|
// This must be from a constant/uniform.
|
// {x_} = 1.0/screenWidthInPixels
|
// {_y} = 1.0/screenHeightInPixels
|
FxaaFloat2 fxaaQualityRcpFrame,
|
//
|
// Only used on FXAA Console.
|
// This must be from a constant/uniform.
|
// This effects sub-pixel AA quality and inversely sharpness.
|
// Where N ranges between,
|
// N = 0.50 (default)
|
// N = 0.33 (sharper)
|
// {x__} = -N/screenWidthInPixels
|
// {_y_} = -N/screenHeightInPixels
|
// {_z_} = N/screenWidthInPixels
|
// {__w} = N/screenHeightInPixels
|
FxaaFloat4 fxaaConsoleRcpFrameOpt,
|
//
|
// Only used on FXAA Console.
|
// Not used on 360, but used on PS3 and PC.
|
// This must be from a constant/uniform.
|
// {x__} = -2.0/screenWidthInPixels
|
// {_y_} = -2.0/screenHeightInPixels
|
// {_z_} = 2.0/screenWidthInPixels
|
// {__w} = 2.0/screenHeightInPixels
|
FxaaFloat4 fxaaConsoleRcpFrameOpt2,
|
//
|
// Only used on FXAA Console.
|
// Only used on 360 in place of fxaaConsoleRcpFrameOpt2.
|
// This must be from a constant/uniform.
|
// {x__} = 8.0/screenWidthInPixels
|
// {_y_} = 8.0/screenHeightInPixels
|
// {_z_} = -4.0/screenWidthInPixels
|
// {__w} = -4.0/screenHeightInPixels
|
FxaaFloat4 fxaaConsole360RcpFrameOpt2,
|
//
|
// 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
|
FxaaFloat 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)
|
FxaaFloat 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.
|
FxaaFloat fxaaQualityEdgeThresholdMin,
|
//
|
// Only used on FXAA Console.
|
// This used to be the FXAA_CONSOLE_EDGE_SHARPNESS define.
|
// It is here now to allow easier tuning.
|
// This does not effect PS3, as this needs to be compiled in.
|
// Use FXAA_CONSOLE_PS3_EDGE_SHARPNESS for PS3.
|
// Due to the PS3 being ALU bound,
|
// there are only three safe values here: 2 and 4 and 8.
|
// These options use the shaders ability to a free *|/ by 2|4|8.
|
// For all other platforms can be a non-power of two.
|
// 8.0 is sharper (default!!!)
|
// 4.0 is softer
|
// 2.0 is really soft (good only for vector graphics inputs)
|
FxaaFloat fxaaConsoleEdgeSharpness,
|
//
|
// Only used on FXAA Console.
|
// This used to be the FXAA_CONSOLE_EDGE_THRESHOLD define.
|
// It is here now to allow easier tuning.
|
// This does not effect PS3, as this needs to be compiled in.
|
// Use FXAA_CONSOLE_PS3_EDGE_THRESHOLD for PS3.
|
// Due to the PS3 being ALU bound,
|
// there are only two safe values here: 1/4 and 1/8.
|
// These options use the shaders ability to a free *|/ by 2|4|8.
|
// The console setting has a different mapping than the quality setting.
|
// Other platforms can use other values.
|
// 0.125 leaves less aliasing, but is softer (default!!!)
|
// 0.25 leaves more aliasing, and is sharper
|
FxaaFloat fxaaConsoleEdgeThreshold,
|
//
|
// Only used on FXAA Console.
|
// This used to be the FXAA_CONSOLE_EDGE_THRESHOLD_MIN define.
|
// It is here now to allow easier tuning.
|
// Trims the algorithm from processing darks.
|
// The console setting has a different mapping than the quality setting.
|
// This only applies when FXAA_EARLY_EXIT is 1.
|
// This does not apply to PS3,
|
// PS3 was simplified to avoid more shader instructions.
|
// 0.06 - faster but more aliasing in darks
|
// 0.05 - default
|
// 0.04 - slower and less aliasing in darks
|
// 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.
|
FxaaFloat fxaaConsoleEdgeThresholdMin,
|
//
|
// Extra constants for 360 FXAA Console only.
|
// Use zeros or anything else for other platforms.
|
// These must be in physical constant registers and NOT immediates.
|
// Immediates will result in compiler un-optimizing.
|
// {xyzw} = float4(1.0, -1.0, 0.25, -0.25)
|
FxaaFloat4 fxaaConsole360ConstDir
|
) {
|
/*--------------------------------------------------------------------------*/
|
FxaaFloat2 posM;
|
posM.x = pos.x;
|
posM.y = pos.y;
|
#if (FXAA_GATHER4_ALPHA == 1)
|
#if (FXAA_DISCARD == 0)
|
FxaaFloat4 rgbyM = FxaaTexTop(tex, posM);
|
#if (FXAA_GREEN_AS_LUMA == 0)
|
#define lumaM rgbyM.w
|
#else
|
#define lumaM rgbyM.y
|
#endif
|
#endif
|
#if (FXAA_GREEN_AS_LUMA == 0)
|
FxaaFloat4 luma4A = FxaaTexAlpha4(tex, posM);
|
FxaaFloat4 luma4B = FxaaTexOffAlpha4(tex, posM, FxaaInt2(-1, -1));
|
#else
|
FxaaFloat4 luma4A = FxaaTexGreen4(tex, posM);
|
FxaaFloat4 luma4B = FxaaTexOffGreen4(tex, posM, FxaaInt2(-1, -1));
|
#endif
|
#if (FXAA_DISCARD == 1)
|
#define lumaM luma4A.w
|
#endif
|
#define lumaE luma4A.z
|
#define lumaS luma4A.x
|
#define lumaSE luma4A.y
|
#define lumaNW luma4B.w
|
#define lumaN luma4B.z
|
#define lumaW luma4B.x
|
#else
|
FxaaFloat4 rgbyM = FxaaTexTop(tex, posM);
|
#if (FXAA_GREEN_AS_LUMA == 0)
|
#define lumaM rgbyM.w
|
#else
|
#define lumaM rgbyM.y
|
#endif
|
#if (FXAA_GLSL_100 == 1)
|
FxaaFloat lumaS = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2( 0.0, 1.0), fxaaQualityRcpFrame.xy));
|
FxaaFloat lumaE = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2( 1.0, 0.0), fxaaQualityRcpFrame.xy));
|
FxaaFloat lumaN = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2( 0.0,-1.0), fxaaQualityRcpFrame.xy));
|
FxaaFloat lumaW = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2(-1.0, 0.0), fxaaQualityRcpFrame.xy));
|
#else
|
FxaaFloat lumaS = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2( 0, 1), fxaaQualityRcpFrame.xy));
|
FxaaFloat lumaE = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2( 1, 0), fxaaQualityRcpFrame.xy));
|
FxaaFloat lumaN = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2( 0,-1), fxaaQualityRcpFrame.xy));
|
FxaaFloat lumaW = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2(-1, 0), fxaaQualityRcpFrame.xy));
|
#endif
|
#endif
|
/*--------------------------------------------------------------------------*/
|
FxaaFloat maxSM = max(lumaS, lumaM);
|
FxaaFloat minSM = min(lumaS, lumaM);
|
FxaaFloat maxESM = max(lumaE, maxSM);
|
FxaaFloat minESM = min(lumaE, minSM);
|
FxaaFloat maxWN = max(lumaN, lumaW);
|
FxaaFloat minWN = min(lumaN, lumaW);
|
FxaaFloat rangeMax = max(maxWN, maxESM);
|
FxaaFloat rangeMin = min(minWN, minESM);
|
FxaaFloat rangeMaxScaled = rangeMax * fxaaQualityEdgeThreshold;
|
FxaaFloat range = rangeMax - rangeMin;
|
FxaaFloat rangeMaxClamped = max(fxaaQualityEdgeThresholdMin, rangeMaxScaled);
|
FxaaBool earlyExit = range < rangeMaxClamped;
|
/*--------------------------------------------------------------------------*/
|
if(earlyExit)
|
#if (FXAA_DISCARD == 1)
|
FxaaDiscard;
|
#else
|
return rgbyM;
|
#endif
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_GATHER4_ALPHA == 0)
|
#if (FXAA_GLSL_100 == 1)
|
FxaaFloat lumaNW = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2(-1.0,-1.0), fxaaQualityRcpFrame.xy));
|
FxaaFloat lumaSE = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2( 1.0, 1.0), fxaaQualityRcpFrame.xy));
|
FxaaFloat lumaNE = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2( 1.0,-1.0), fxaaQualityRcpFrame.xy));
|
FxaaFloat lumaSW = FxaaLuma(FxaaTexOff(tex, posM, FxaaFloat2(-1.0, 1.0), fxaaQualityRcpFrame.xy));
|
#else
|
FxaaFloat lumaNW = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2(-1,-1), fxaaQualityRcpFrame.xy));
|
FxaaFloat lumaSE = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2( 1, 1), fxaaQualityRcpFrame.xy));
|
FxaaFloat lumaNE = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2( 1,-1), fxaaQualityRcpFrame.xy));
|
FxaaFloat lumaSW = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2(-1, 1), fxaaQualityRcpFrame.xy));
|
#endif
|
#else
|
FxaaFloat lumaNE = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2(1, -1), fxaaQualityRcpFrame.xy));
|
FxaaFloat lumaSW = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2(-1, 1), fxaaQualityRcpFrame.xy));
|
#endif
|
/*--------------------------------------------------------------------------*/
|
FxaaFloat lumaNS = lumaN + lumaS;
|
FxaaFloat lumaWE = lumaW + lumaE;
|
FxaaFloat subpixRcpRange = 1.0/range;
|
FxaaFloat subpixNSWE = lumaNS + lumaWE;
|
FxaaFloat edgeHorz1 = (-2.0 * lumaM) + lumaNS;
|
FxaaFloat edgeVert1 = (-2.0 * lumaM) + lumaWE;
|
/*--------------------------------------------------------------------------*/
|
FxaaFloat lumaNESE = lumaNE + lumaSE;
|
FxaaFloat lumaNWNE = lumaNW + lumaNE;
|
FxaaFloat edgeHorz2 = (-2.0 * lumaE) + lumaNESE;
|
FxaaFloat edgeVert2 = (-2.0 * lumaN) + lumaNWNE;
|
/*--------------------------------------------------------------------------*/
|
FxaaFloat lumaNWSW = lumaNW + lumaSW;
|
FxaaFloat lumaSWSE = lumaSW + lumaSE;
|
FxaaFloat edgeHorz4 = (abs(edgeHorz1) * 2.0) + abs(edgeHorz2);
|
FxaaFloat edgeVert4 = (abs(edgeVert1) * 2.0) + abs(edgeVert2);
|
FxaaFloat edgeHorz3 = (-2.0 * lumaW) + lumaNWSW;
|
FxaaFloat edgeVert3 = (-2.0 * lumaS) + lumaSWSE;
|
FxaaFloat edgeHorz = abs(edgeHorz3) + edgeHorz4;
|
FxaaFloat edgeVert = abs(edgeVert3) + edgeVert4;
|
/*--------------------------------------------------------------------------*/
|
FxaaFloat subpixNWSWNESE = lumaNWSW + lumaNESE;
|
FxaaFloat lengthSign = fxaaQualityRcpFrame.x;
|
FxaaBool horzSpan = edgeHorz >= edgeVert;
|
FxaaFloat subpixA = subpixNSWE * 2.0 + subpixNWSWNESE;
|
/*--------------------------------------------------------------------------*/
|
if(!horzSpan) lumaN = lumaW;
|
if(!horzSpan) lumaS = lumaE;
|
if(horzSpan) lengthSign = fxaaQualityRcpFrame.y;
|
FxaaFloat subpixB = (subpixA * (1.0/12.0)) - lumaM;
|
/*--------------------------------------------------------------------------*/
|
FxaaFloat gradientN = lumaN - lumaM;
|
FxaaFloat gradientS = lumaS - lumaM;
|
FxaaFloat lumaNN = lumaN + lumaM;
|
FxaaFloat lumaSS = lumaS + lumaM;
|
FxaaBool pairN = abs(gradientN) >= abs(gradientS);
|
FxaaFloat gradient = max(abs(gradientN), abs(gradientS));
|
if(pairN) lengthSign = -lengthSign;
|
FxaaFloat subpixC = FxaaSat(abs(subpixB) * subpixRcpRange);
|
/*--------------------------------------------------------------------------*/
|
FxaaFloat2 posB;
|
posB.x = posM.x;
|
posB.y = posM.y;
|
FxaaFloat2 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;
|
/*--------------------------------------------------------------------------*/
|
FxaaFloat2 posN;
|
posN.x = posB.x - offNP.x * FXAA_QUALITY_P0;
|
posN.y = posB.y - offNP.y * FXAA_QUALITY_P0;
|
FxaaFloat2 posP;
|
posP.x = posB.x + offNP.x * FXAA_QUALITY_P0;
|
posP.y = posB.y + offNP.y * FXAA_QUALITY_P0;
|
FxaaFloat subpixD = ((-2.0)*subpixC) + 3.0;
|
FxaaFloat lumaEndN = FxaaLuma(FxaaTexTop(tex, posN));
|
FxaaFloat subpixE = subpixC * subpixC;
|
FxaaFloat lumaEndP = FxaaLuma(FxaaTexTop(tex, posP));
|
/*--------------------------------------------------------------------------*/
|
if(!pairN) lumaNN = lumaSS;
|
FxaaFloat gradientScaled = gradient * 1.0/4.0;
|
FxaaFloat lumaMM = lumaM - lumaNN * 0.5;
|
FxaaFloat subpixF = subpixD * subpixE;
|
FxaaBool lumaMLTZero = lumaMM < 0.0;
|
/*--------------------------------------------------------------------------*/
|
lumaEndN -= lumaNN * 0.5;
|
lumaEndP -= lumaNN * 0.5;
|
FxaaBool doneN = abs(lumaEndN) >= gradientScaled;
|
FxaaBool doneP = abs(lumaEndP) >= gradientScaled;
|
if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P1;
|
if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P1;
|
FxaaBool 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(FxaaTexTop(tex, posN.xy));
|
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
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;
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PS > 3)
|
if(doneNP) {
|
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
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;
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PS > 4)
|
if(doneNP) {
|
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
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;
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PS > 5)
|
if(doneNP) {
|
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
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;
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PS > 6)
|
if(doneNP) {
|
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
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;
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PS > 7)
|
if(doneNP) {
|
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
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;
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PS > 8)
|
if(doneNP) {
|
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
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;
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PS > 9)
|
if(doneNP) {
|
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
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;
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PS > 10)
|
if(doneNP) {
|
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
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;
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PS > 11)
|
if(doneNP) {
|
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
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;
|
/*--------------------------------------------------------------------------*/
|
#if (FXAA_QUALITY_PS > 12)
|
if(doneNP) {
|
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
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;
|
/*--------------------------------------------------------------------------*/
|
}
|
#endif
|
/*--------------------------------------------------------------------------*/
|
}
|
#endif
|
/*--------------------------------------------------------------------------*/
|
}
|
#endif
|
/*--------------------------------------------------------------------------*/
|
}
|
#endif
|
/*--------------------------------------------------------------------------*/
|
}
|
#endif
|
/*--------------------------------------------------------------------------*/
|
}
|
#endif
|
/*--------------------------------------------------------------------------*/
|
}
|
#endif
|
/*--------------------------------------------------------------------------*/
|
}
|
#endif
|
/*--------------------------------------------------------------------------*/
|
}
|
#endif
|
/*--------------------------------------------------------------------------*/
|
}
|
#endif
|
/*--------------------------------------------------------------------------*/
|
}
|
/*--------------------------------------------------------------------------*/
|
FxaaFloat dstN = posM.x - posN.x;
|
FxaaFloat dstP = posP.x - posM.x;
|
if(!horzSpan) dstN = posM.y - posN.y;
|
if(!horzSpan) dstP = posP.y - posM.y;
|
/*--------------------------------------------------------------------------*/
|
FxaaBool goodSpanN = (lumaEndN < 0.0) != lumaMLTZero;
|
FxaaFloat spanLength = (dstP + dstN);
|
FxaaBool goodSpanP = (lumaEndP < 0.0) != lumaMLTZero;
|
FxaaFloat spanLengthRcp = 1.0/spanLength;
|
/*--------------------------------------------------------------------------*/
|
FxaaBool directionN = dstN < dstP;
|
FxaaFloat dst = min(dstN, dstP);
|
FxaaBool goodSpan = directionN ? goodSpanN : goodSpanP;
|
FxaaFloat subpixG = subpixF * subpixF;
|
FxaaFloat pixelOffset = (dst * (-spanLengthRcp)) + 0.5;
|
FxaaFloat subpixH = subpixG * fxaaQualitySubpix;
|
/*--------------------------------------------------------------------------*/
|
FxaaFloat pixelOffsetGood = goodSpan ? pixelOffset : 0.0;
|
FxaaFloat pixelOffsetSubpix = max(pixelOffsetGood, subpixH);
|
if(!horzSpan) posM.x += pixelOffsetSubpix * lengthSign;
|
if( horzSpan) posM.y += pixelOffsetSubpix * lengthSign;
|
#if (FXAA_DISCARD == 1)
|
return FxaaTexTop(tex, posM);
|
#else
|
return FxaaFloat4(FxaaTexTop(tex, posM).xyz, lumaM);
|
#endif
|
}
|
/*==========================================================================*/
|
#endif
|
|
void main() {
|
gl_FragColor = FxaaPixelShader(
|
vUv,
|
vec4(0.0),
|
tDiffuse,
|
tDiffuse,
|
tDiffuse,
|
resolution,
|
vec4(0.0),
|
vec4(0.0),
|
vec4(0.0),
|
0.75,
|
0.166,
|
0.0833,
|
0.0,
|
0.0,
|
0.0,
|
vec4(0.0)
|
);
|
|
// TODO avoid querying texture twice for same texel
|
gl_FragColor.a = texture2D(tDiffuse, vUv).a;
|
}`
|
|
};
|
|
export { FXAAShader };
|
