722 lines
31 KiB
HLSL
722 lines
31 KiB
HLSL
//----------------------------------------------------------------------------------
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//
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// Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of NVIDIA CORPORATION nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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//----------------------------------------------------------------------------------
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/*============================================================================
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NVIDIA FXAA 3.11 by TIMOTHY LOTTES
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------------------------------------------------------------------------------
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Modified for Urho3D
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============================================================================*/
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/*==========================================================================*/
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//
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// Urho3D specific preparations
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//
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/*--------------------------------------------------------------------------*/
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#include "Uniforms.hlsl"
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#include "Samplers.hlsl"
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#include "Transform.hlsl"
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#include "ScreenPos.hlsl"
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#ifdef COMPILEPS
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/*============================================================================
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FXAA QUALITY - TUNING KNOBS
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------------------------------------------------------------------------------
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NOTE the other tuning knobs are now in the shader function inputs!
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============================================================================*/
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#ifndef FXAA_QUALITY_PRESET
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//
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// Choose the quality preset.
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// This needs to be compiled into the shader as it effects code.
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// Best option to include multiple presets is to
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// in each shader define the preset, then include this file.
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//
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// OPTIONS
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// -----------------------------------------------------------------------
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// 10 to 15 - default medium dither (10=fastest, 15=highest quality)
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// 20 to 29 - less dither, more expensive (20=fastest, 29=highest quality)
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// 39 - no dither, very expensive
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//
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// NOTES
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// -----------------------------------------------------------------------
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// 12 = slightly faster then FXAA 3.9 and higher edge quality (default)
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// 13 = about same speed as FXAA 3.9 and better than 12
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// 23 = closest to FXAA 3.9 visually and performance wise
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// _ = the lowest digit is directly related to performance
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// _ = the highest digit is directly related to style
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//
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#define FXAA_QUALITY_PRESET 12
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#endif
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/*============================================================================
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FXAA QUALITY - PRESETS
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============================================================================*/
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/*============================================================================
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FXAA QUALITY - MEDIUM DITHER PRESETS
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============================================================================*/
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#if (FXAA_QUALITY_PRESET == 10)
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#define FXAA_QUALITY_PS 3
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#define FXAA_QUALITY_P0 1.5
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#define FXAA_QUALITY_P1 3.0
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#define FXAA_QUALITY_P2 12.0
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#endif
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/*--------------------------------------------------------------------------*/
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#if (FXAA_QUALITY_PRESET == 11)
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#define FXAA_QUALITY_PS 4
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#define FXAA_QUALITY_P0 1.0
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#define FXAA_QUALITY_P1 1.5
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#define FXAA_QUALITY_P2 3.0
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#define FXAA_QUALITY_P3 12.0
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#endif
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/*--------------------------------------------------------------------------*/
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#if (FXAA_QUALITY_PRESET == 12)
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#define FXAA_QUALITY_PS 5
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#define FXAA_QUALITY_P0 1.0
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#define FXAA_QUALITY_P1 1.5
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#define FXAA_QUALITY_P2 2.0
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#define FXAA_QUALITY_P3 4.0
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#define FXAA_QUALITY_P4 12.0
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#endif
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/*--------------------------------------------------------------------------*/
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#if (FXAA_QUALITY_PRESET == 13)
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#define FXAA_QUALITY_PS 6
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#define FXAA_QUALITY_P0 1.0
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#define FXAA_QUALITY_P1 1.5
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#define FXAA_QUALITY_P2 2.0
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#define FXAA_QUALITY_P3 2.0
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#define FXAA_QUALITY_P4 4.0
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#define FXAA_QUALITY_P5 12.0
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#endif
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/*--------------------------------------------------------------------------*/
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#if (FXAA_QUALITY_PRESET == 14)
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#define FXAA_QUALITY_PS 7
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#define FXAA_QUALITY_P0 1.0
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#define FXAA_QUALITY_P1 1.5
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#define FXAA_QUALITY_P2 2.0
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#define FXAA_QUALITY_P3 2.0
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#define FXAA_QUALITY_P4 2.0
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#define FXAA_QUALITY_P5 4.0
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#define FXAA_QUALITY_P6 12.0
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#endif
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/*--------------------------------------------------------------------------*/
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#if (FXAA_QUALITY_PRESET == 15)
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#define FXAA_QUALITY_PS 8
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#define FXAA_QUALITY_P0 1.0
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#define FXAA_QUALITY_P1 1.5
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#define FXAA_QUALITY_P2 2.0
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#define FXAA_QUALITY_P3 2.0
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#define FXAA_QUALITY_P4 2.0
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#define FXAA_QUALITY_P5 2.0
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#define FXAA_QUALITY_P6 4.0
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#define FXAA_QUALITY_P7 12.0
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#endif
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/*============================================================================
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FXAA QUALITY - LOW DITHER PRESETS
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============================================================================*/
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#if (FXAA_QUALITY_PRESET == 20)
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#define FXAA_QUALITY_PS 3
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#define FXAA_QUALITY_P0 1.5
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#define FXAA_QUALITY_P1 2.0
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#define FXAA_QUALITY_P2 8.0
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#endif
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/*--------------------------------------------------------------------------*/
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#if (FXAA_QUALITY_PRESET == 21)
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#define FXAA_QUALITY_PS 4
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#define FXAA_QUALITY_P0 1.0
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#define FXAA_QUALITY_P1 1.5
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#define FXAA_QUALITY_P2 2.0
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#define FXAA_QUALITY_P3 8.0
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#endif
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/*--------------------------------------------------------------------------*/
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#if (FXAA_QUALITY_PRESET == 22)
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#define FXAA_QUALITY_PS 5
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#define FXAA_QUALITY_P0 1.0
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#define FXAA_QUALITY_P1 1.5
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#define FXAA_QUALITY_P2 2.0
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#define FXAA_QUALITY_P3 2.0
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#define FXAA_QUALITY_P4 8.0
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#endif
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/*--------------------------------------------------------------------------*/
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#if (FXAA_QUALITY_PRESET == 23)
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#define FXAA_QUALITY_PS 6
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#define FXAA_QUALITY_P0 1.0
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#define FXAA_QUALITY_P1 1.5
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#define FXAA_QUALITY_P2 2.0
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#define FXAA_QUALITY_P3 2.0
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#define FXAA_QUALITY_P4 2.0
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#define FXAA_QUALITY_P5 8.0
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#endif
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/*--------------------------------------------------------------------------*/
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#if (FXAA_QUALITY_PRESET == 24)
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#define FXAA_QUALITY_PS 7
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#define FXAA_QUALITY_P0 1.0
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#define FXAA_QUALITY_P1 1.5
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#define FXAA_QUALITY_P2 2.0
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#define FXAA_QUALITY_P3 2.0
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#define FXAA_QUALITY_P4 2.0
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#define FXAA_QUALITY_P5 3.0
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#define FXAA_QUALITY_P6 8.0
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#endif
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/*--------------------------------------------------------------------------*/
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#if (FXAA_QUALITY_PRESET == 25)
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#define FXAA_QUALITY_PS 8
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#define FXAA_QUALITY_P0 1.0
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#define FXAA_QUALITY_P1 1.5
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#define FXAA_QUALITY_P2 2.0
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#define FXAA_QUALITY_P3 2.0
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#define FXAA_QUALITY_P4 2.0
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#define FXAA_QUALITY_P5 2.0
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#define FXAA_QUALITY_P6 4.0
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#define FXAA_QUALITY_P7 8.0
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#endif
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/*--------------------------------------------------------------------------*/
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#if (FXAA_QUALITY_PRESET == 26)
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#define FXAA_QUALITY_PS 9
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#define FXAA_QUALITY_P0 1.0
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#define FXAA_QUALITY_P1 1.5
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#define FXAA_QUALITY_P2 2.0
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#define FXAA_QUALITY_P3 2.0
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#define FXAA_QUALITY_P4 2.0
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#define FXAA_QUALITY_P5 2.0
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#define FXAA_QUALITY_P6 2.0
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#define FXAA_QUALITY_P7 4.0
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#define FXAA_QUALITY_P8 8.0
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#endif
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/*--------------------------------------------------------------------------*/
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#if (FXAA_QUALITY_PRESET == 27)
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#define FXAA_QUALITY_PS 10
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#define FXAA_QUALITY_P0 1.0
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#define FXAA_QUALITY_P1 1.5
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#define FXAA_QUALITY_P2 2.0
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#define FXAA_QUALITY_P3 2.0
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#define FXAA_QUALITY_P4 2.0
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#define FXAA_QUALITY_P5 2.0
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#define FXAA_QUALITY_P6 2.0
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#define FXAA_QUALITY_P7 2.0
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#define FXAA_QUALITY_P8 4.0
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#define FXAA_QUALITY_P9 8.0
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#endif
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/*--------------------------------------------------------------------------*/
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#if (FXAA_QUALITY_PRESET == 28)
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#define FXAA_QUALITY_PS 11
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#define FXAA_QUALITY_P0 1.0
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#define FXAA_QUALITY_P1 1.5
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#define FXAA_QUALITY_P2 2.0
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#define FXAA_QUALITY_P3 2.0
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#define FXAA_QUALITY_P4 2.0
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#define FXAA_QUALITY_P5 2.0
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#define FXAA_QUALITY_P6 2.0
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#define FXAA_QUALITY_P7 2.0
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#define FXAA_QUALITY_P8 2.0
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#define FXAA_QUALITY_P9 4.0
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#define FXAA_QUALITY_P10 8.0
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#endif
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/*--------------------------------------------------------------------------*/
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#if (FXAA_QUALITY_PRESET == 29)
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#define FXAA_QUALITY_PS 12
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#define FXAA_QUALITY_P0 1.0
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#define FXAA_QUALITY_P1 1.5
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#define FXAA_QUALITY_P2 2.0
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#define FXAA_QUALITY_P3 2.0
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#define FXAA_QUALITY_P4 2.0
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#define FXAA_QUALITY_P5 2.0
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#define FXAA_QUALITY_P6 2.0
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#define FXAA_QUALITY_P7 2.0
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#define FXAA_QUALITY_P8 2.0
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#define FXAA_QUALITY_P9 2.0
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#define FXAA_QUALITY_P10 4.0
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#define FXAA_QUALITY_P11 8.0
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#endif
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/*============================================================================
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FXAA QUALITY - EXTREME QUALITY
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============================================================================*/
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#if (FXAA_QUALITY_PRESET == 39)
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#define FXAA_QUALITY_PS 12
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#define FXAA_QUALITY_P0 1.0
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#define FXAA_QUALITY_P1 1.0
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#define FXAA_QUALITY_P2 1.0
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#define FXAA_QUALITY_P3 1.0
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#define FXAA_QUALITY_P4 1.0
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#define FXAA_QUALITY_P5 1.5
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#define FXAA_QUALITY_P6 2.0
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#define FXAA_QUALITY_P7 2.0
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#define FXAA_QUALITY_P8 2.0
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#define FXAA_QUALITY_P9 2.0
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#define FXAA_QUALITY_P10 4.0
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#define FXAA_QUALITY_P11 8.0
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#endif
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/*============================================================================
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Support Functions
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============================================================================*/
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float CalcLuma(float3 rgb)
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{
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float3 luma = float3(0.299, 0.587, 0.114);
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return dot(rgb, luma);
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}
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/*--------------------------------------------------------------------------*/
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#ifndef D3D11
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#define FxaaTexTop(tex, p) float4(tex2Dlod(s##tex, float4(p, 0.0, 0.0)).rgb, 1.0)
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#define LumaTop(tex, p) CalcLuma(tex2Dlod(s##tex, float4(p, 0.0, 0.0)).rgb)
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#define LumaOff(tex, p, o, r) CalcLuma(tex2Dlod(s##tex, float4(p + (o * r), 0, 0)).rgb)
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#else
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#define FxaaTexTop(tex, p) float4(t##tex.SampleLevel(s##tex, p, 0.0).rgb, 1.0)
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#define LumaTop(tex, p) CalcLuma(t##tex.SampleLevel(s##tex, p, 0.0).rgb)
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#define LumaOff(tex, p, o, r) CalcLuma(t##tex.SampleLevel(s##tex, p + (o * r), 0.0).rgb)
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#endif
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/*============================================================================
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FXAA3 QUALITY - PC
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============================================================================*/
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float4 FxaaPixelShader(
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//
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// Use noperspective interpolation here (turn off perspective interpolation).
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// {xy} = center of pixel
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float2 pos,
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//
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// Input color texture.
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// {rgb_} = color in linear or perceptual color space
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// if (FXAA_GREEN_AS_LUMA == 0)
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// {__a} = luma in perceptual color space (not linear)
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//sampler2D tex,
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//
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// Only used on FXAA Quality.
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// This must be from a constant/uniform.
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// {x_} = 1.0/screenWidthInPixels
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// {_y} = 1.0/screenHeightInPixels
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float2 fxaaQualityRcpFrame,
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//
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// Only used on FXAA Quality.
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// This used to be the FXAA_QUALITY_SUBPIX define.
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// It is here now to allow easier tuning.
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// Choose the amount of sub-pixel aliasing removal.
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// This can effect sharpness.
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// 1.00 - upper limit (softer)
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// 0.75 - default amount of filtering
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// 0.50 - lower limit (sharper, less sub-pixel aliasing removal)
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// 0.25 - almost off
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// 0.00 - completely off
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float fxaaQualitySubpix,
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//
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// Only used on FXAA Quality.
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// This used to be the FXAA_QUALITY_EDGE_THRESHOLD define.
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// It is here now to allow easier tuning.
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// The minimum amount of local contrast required to apply algorithm.
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// 0.333 - too little (faster)
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// 0.250 - low quality
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// 0.166 - default
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// 0.125 - high quality
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// 0.063 - overkill (slower)
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float fxaaQualityEdgeThreshold,
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//
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// Only used on FXAA Quality.
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// This used to be the FXAA_QUALITY_EDGE_THRESHOLD_MIN define.
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// It is here now to allow easier tuning.
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// Trims the algorithm from processing darks.
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// 0.0833 - upper limit (default, the start of visible unfiltered edges)
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// 0.0625 - high quality (faster)
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// 0.0312 - visible limit (slower)
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// Special notes when using FXAA_GREEN_AS_LUMA,
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// Likely want to set this to zero.
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// As colors that are mostly not-green
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// will appear very dark in the green channel!
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// Tune by looking at mostly non-green content,
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// then start at zero and increase until aliasing is a problem.
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float fxaaQualityEdgeThresholdMin
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) {
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/*--------------------------------------------------------------------------*/
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float2 posM;
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posM.x = pos.x;
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posM.y = pos.y;
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float4 rgbyM = FxaaTexTop(DiffMap, posM);
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rgbyM.y = CalcLuma(rgbyM.rgb);
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#define lumaM rgbyM.y
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float lumaS = LumaOff(DiffMap, posM, float2( 0, 1), fxaaQualityRcpFrame.xy);
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float lumaE = LumaOff(DiffMap, posM, float2( 1, 0), fxaaQualityRcpFrame.xy);
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float lumaN = LumaOff(DiffMap, posM, float2( 0,-1), fxaaQualityRcpFrame.xy);
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float lumaW = LumaOff(DiffMap, posM, float2(-1, 0), fxaaQualityRcpFrame.xy);
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/*--------------------------------------------------------------------------*/
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float maxSM = max(lumaS, lumaM);
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float minSM = min(lumaS, lumaM);
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float maxESM = max(lumaE, maxSM);
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float minESM = min(lumaE, minSM);
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float maxWN = max(lumaN, lumaW);
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float minWN = min(lumaN, lumaW);
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float rangeMax = max(maxWN, maxESM);
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float rangeMin = min(minWN, minESM);
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float rangeMaxScaled = rangeMax * fxaaQualityEdgeThreshold;
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float range = rangeMax - rangeMin;
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float rangeMaxClamped = max(fxaaQualityEdgeThresholdMin, rangeMaxScaled);
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bool earlyExit = range < rangeMaxClamped;
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/*--------------------------------------------------------------------------*/
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if(earlyExit)
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return FxaaTexTop(DiffMap, pos);
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/*--------------------------------------------------------------------------*/
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float lumaNW = LumaOff(DiffMap, posM, float2(-1,-1), fxaaQualityRcpFrame.xy);
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float lumaSE = LumaOff(DiffMap, posM, float2( 1, 1), fxaaQualityRcpFrame.xy);
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float lumaNE = LumaOff(DiffMap, posM, float2( 1,-1), fxaaQualityRcpFrame.xy);
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float lumaSW = LumaOff(DiffMap, posM, float2(-1, 1), fxaaQualityRcpFrame.xy);
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/*--------------------------------------------------------------------------*/
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float lumaNS = lumaN + lumaS;
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float lumaWE = lumaW + lumaE;
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float subpixRcpRange = 1.0/range;
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float subpixNSWE = lumaNS + lumaWE;
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float edgeHorz1 = (-2.0 * lumaM) + lumaNS;
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float edgeVert1 = (-2.0 * lumaM) + lumaWE;
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/*--------------------------------------------------------------------------*/
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float lumaNESE = lumaNE + lumaSE;
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float lumaNWNE = lumaNW + lumaNE;
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float edgeHorz2 = (-2.0 * lumaE) + lumaNESE;
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float edgeVert2 = (-2.0 * lumaN) + lumaNWNE;
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/*--------------------------------------------------------------------------*/
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float lumaNWSW = lumaNW + lumaSW;
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float lumaSWSE = lumaSW + lumaSE;
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float edgeHorz4 = (abs(edgeHorz1) * 2.0) + abs(edgeHorz2);
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float edgeVert4 = (abs(edgeVert1) * 2.0) + abs(edgeVert2);
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float edgeHorz3 = (-2.0 * lumaW) + lumaNWSW;
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float edgeVert3 = (-2.0 * lumaS) + lumaSWSE;
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float edgeHorz = abs(edgeHorz3) + edgeHorz4;
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float edgeVert = abs(edgeVert3) + edgeVert4;
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/*--------------------------------------------------------------------------*/
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float subpixNWSWNESE = lumaNWSW + lumaNESE;
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float lengthSign = fxaaQualityRcpFrame.x;
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bool horzSpan = edgeHorz >= edgeVert;
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float subpixA = subpixNSWE * 2.0 + subpixNWSWNESE;
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/*--------------------------------------------------------------------------*/
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if(!horzSpan) lumaN = lumaW;
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if(!horzSpan) lumaS = lumaE;
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if(horzSpan) lengthSign = fxaaQualityRcpFrame.y;
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float subpixB = (subpixA * (1.0/12.0)) - lumaM;
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/*--------------------------------------------------------------------------*/
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float gradientN = lumaN - lumaM;
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float gradientS = lumaS - lumaM;
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float lumaNN = lumaN + lumaM;
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float lumaSS = lumaS + lumaM;
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bool pairN = abs(gradientN) >= abs(gradientS);
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|
float gradient = max(abs(gradientN), abs(gradientS));
|
|
if(pairN) lengthSign = -lengthSign;
|
|
float subpixC = clamp((abs(subpixB) * subpixRcpRange), 0.0, 1.0);
|
|
/*--------------------------------------------------------------------------*/
|
|
float2 posB;
|
|
posB.x = posM.x;
|
|
posB.y = posM.y;
|
|
float2 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;
|
|
/*--------------------------------------------------------------------------*/
|
|
float2 posN;
|
|
posN.x = posB.x - offNP.x * FXAA_QUALITY_P0;
|
|
posN.y = posB.y - offNP.y * FXAA_QUALITY_P0;
|
|
float2 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 = LumaTop(DiffMap, posN);
|
|
float subpixE = subpixC * subpixC;
|
|
float lumaEndP = LumaTop(DiffMap, posP);
|
|
/*--------------------------------------------------------------------------*/
|
|
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 = LumaTop(DiffMap, posN.xy);
|
|
if(!doneP) lumaEndP = LumaTop(DiffMap, 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 = LumaTop(DiffMap, posN.xy);
|
|
if(!doneP) lumaEndP = LumaTop(DiffMap, 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 = LumaTop(DiffMap, posN.xy);
|
|
if(!doneP) lumaEndP = LumaTop(DiffMap, 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 = LumaTop(DiffMap, posN.xy);
|
|
if(!doneP) lumaEndP = LumaTop(DiffMap, 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 = LumaTop(DiffMap, posN.xy);
|
|
if(!doneP) lumaEndP = LumaTop(DiffMap, 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 = LumaTop(DiffMap, posN.xy);
|
|
if(!doneP) lumaEndP = LumaTop(DiffMap, 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 = LumaTop(DiffMap, posN.xy);
|
|
if(!doneP) lumaEndP = LumaTop(DiffMap, 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 = LumaTop(DiffMap, posN.xy);
|
|
if(!doneP) lumaEndP = LumaTop(DiffMap, 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 = LumaTop(DiffMap, posN.xy);
|
|
if(!doneP) lumaEndP = LumaTop(DiffMap, 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 = LumaTop(DiffMap, posN.xy);
|
|
if(!doneP) lumaEndP = LumaTop(DiffMap, 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 = LumaTop(DiffMap, posN.xy);
|
|
if(!doneP) lumaEndP = LumaTop(DiffMap, 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
|
|
/*--------------------------------------------------------------------------*/
|
|
}
|
|
/*--------------------------------------------------------------------------*/
|
|
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 FxaaTexTop(DiffMap, posM);
|
|
}
|
|
/*==========================================================================*/
|
|
#endif
|
|
|
|
/*============================================================================
|
|
|
|
Urho3D Vertex- and Pixelshader
|
|
|
|
============================================================================*/
|
|
|
|
void VS(float4 iPos : POSITION,
|
|
out float2 oScreenPos : TEXCOORD0,
|
|
out float4 oPos : OUTPOSITION)
|
|
{
|
|
float4x3 modelMatrix = iModelMatrix;
|
|
float3 worldPos = GetWorldPos(modelMatrix);
|
|
oPos = GetClipPos(worldPos);
|
|
oScreenPos = GetScreenPosPreDiv(oPos);
|
|
}
|
|
|
|
void PS(float2 iScreenPos : TEXCOORD0,
|
|
out float4 oColor : OUTCOLOR0)
|
|
{
|
|
float2 rcpFrame = float2(cGBufferInvSize.x, cGBufferInvSize.y);
|
|
|
|
oColor = FxaaPixelShader(
|
|
iScreenPos, // float2 pos,
|
|
rcpFrame, // float2 fxaaQualityRcpFrame,
|
|
0.75f, // float fxaaQualitySubpix,
|
|
0.166f, // float fxaaQualityEdgeThreshold,
|
|
0.0833f // float fxaaQualityEdgeThresholdMin
|
|
);
|
|
}
|
|
|