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https://git.dev.opencascade.org/repos/occt.git
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bc73b00672
- Provide DumpJson for geometrical, ocaf and visualization classes; - Change depth parameter of DumpJson (constant is not obligate here) - Introduce a new macro for transient objects to be called as the first row in DumpJson: OCCT_DUMP_TRANSIENT_CLASS_BEGIN. We need not put the class name in the macro, using get_type_name of Standard_Transient for it. - change implementation of OCCT_DUMP_CLASS_BEGIN and OCCT_DUMP_TRANSIENT_CLASS_BEGIN. It is not an sentry more and it does not create a new hierarchy level. It appends a new row into the output stream: "className": <className> - OCCT_DUMP_* does not require semicolon - class header is included first in source files of TDataStd, TDocStd, TCAFDoc
260 lines
9.0 KiB
C++
260 lines
9.0 KiB
C++
// Created on: 2015-01-19
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// Created by: Denis BOGOLEPOV
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// Copyright (c) 2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <Graphic3d_BSDF.hxx>
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#include <Graphic3d_PBRMaterial.hxx>
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#include <algorithm>
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// =======================================================================
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// function : Serialize
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// purpose :
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// =======================================================================
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Graphic3d_Vec4 Graphic3d_Fresnel::Serialize() const
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{
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Graphic3d_Vec4 aData = Graphic3d_Vec4 (myFresnelData, 0.f);
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if (myFresnelType != Graphic3d_FM_SCHLICK)
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{
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aData.x() = -static_cast<float> (myFresnelType);
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}
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return aData;
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}
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// =======================================================================
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// function : fresnelNormal
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// purpose :
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// =======================================================================
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inline float fresnelNormal (float theN,
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float theK)
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{
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return ((theN - 1.f) * (theN - 1.f) + theK * theK) /
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((theN + 1.f) * (theN + 1.f) + theK * theK);
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}
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// =======================================================================
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// function : CreateConductor
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// purpose :
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// =======================================================================
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Graphic3d_Fresnel Graphic3d_Fresnel::CreateConductor (const Graphic3d_Vec3& theRefractionIndex,
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const Graphic3d_Vec3& theAbsorptionIndex)
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{
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const Graphic3d_Vec3 aFresnel (fresnelNormal (theRefractionIndex.x(), theAbsorptionIndex.x()),
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fresnelNormal (theRefractionIndex.y(), theAbsorptionIndex.y()),
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fresnelNormal (theRefractionIndex.z(), theAbsorptionIndex.z()));
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return Graphic3d_Fresnel (Graphic3d_FM_SCHLICK, aFresnel);
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}
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//=======================================================================
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//function : DumpJson
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//purpose :
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//=======================================================================
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void Graphic3d_Fresnel::DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth) const
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{
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OCCT_DUMP_CLASS_BEGIN (theOStream, Graphic3d_Fresnel)
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OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myFresnelType)
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OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &myFresnelData)
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}
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// =======================================================================
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// function : Graphic3d_BSDF
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// purpose :
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// =======================================================================
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Graphic3d_BSDF::Graphic3d_BSDF()
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: Ks (Graphic3d_Vec3 (0.f), 1.f)
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{
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FresnelCoat = Graphic3d_Fresnel::CreateConstant (0.f);
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FresnelBase = Graphic3d_Fresnel::CreateConstant (1.f);
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}
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// =======================================================================
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// function : operator==
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// purpose :
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// =======================================================================
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bool Graphic3d_BSDF::operator== (const Graphic3d_BSDF& theOther) const
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{
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return Kc == theOther.Kc
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&& Kd == theOther.Kd
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&& Kt == theOther.Kt
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&& Ks == theOther.Ks
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&& Le == theOther.Le
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&& Absorption == theOther.Absorption
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&& FresnelCoat == theOther.FresnelCoat
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&& FresnelBase == theOther.FresnelBase;
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}
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// =======================================================================
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// function : Normalize
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// purpose :
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// =======================================================================
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void Graphic3d_BSDF::Normalize()
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{
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float aMax = 0.f;
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for (int aChannelID = 0; aChannelID < 3; ++aChannelID)
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{
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aMax = std::max (aMax, Kd[aChannelID] + Ks[aChannelID] + Kt[aChannelID]);
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}
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if (aMax > 1.f)
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{
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for (int aChannelID = 0; aChannelID < 3; ++aChannelID)
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{
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Kd[aChannelID] /= aMax;
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Ks[aChannelID] /= aMax;
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Kt[aChannelID] /= aMax;
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}
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}
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}
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// =======================================================================
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// function : CreateDiffuse
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// purpose :
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// =======================================================================
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Graphic3d_BSDF Graphic3d_BSDF::CreateDiffuse (const Graphic3d_Vec3& theWeight)
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{
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Graphic3d_BSDF aBSDF;
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aBSDF.Kd = theWeight;
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return aBSDF;
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}
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// =======================================================================
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// function : CreateMetallic
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// purpose :
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// =======================================================================
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Graphic3d_BSDF Graphic3d_BSDF::CreateMetallic (const Graphic3d_Vec3& theWeight, const Graphic3d_Fresnel& theFresnel, const float theRoughness)
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{
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Graphic3d_BSDF aBSDF;
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aBSDF.FresnelBase = theFresnel;
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// Selecting between specular and glossy
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// BRDF depending on the given roughness
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aBSDF.Ks = Graphic3d_Vec4 (theWeight, theRoughness);
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return aBSDF;
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}
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// =======================================================================
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// function : CreateTransparent
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// purpose :
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// =======================================================================
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Graphic3d_BSDF Graphic3d_BSDF::CreateTransparent (const Graphic3d_Vec3& theWeight,
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const Graphic3d_Vec3& theAbsorptionColor,
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const float theAbsorptionCoeff)
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{
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Graphic3d_BSDF aBSDF;
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// Create Fresnel parameters for the coat layer;
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// set it to 0 value to simulate ideal refractor
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aBSDF.FresnelCoat = Graphic3d_Fresnel::CreateConstant (0.f);
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aBSDF.Kt = theWeight;
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// Link reflection and transmission coefficients
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aBSDF.Kc.r() = aBSDF.Kt.r();
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aBSDF.Kc.g() = aBSDF.Kt.g();
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aBSDF.Kc.b() = aBSDF.Kt.b();
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aBSDF.Absorption = Graphic3d_Vec4 (theAbsorptionColor,
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theAbsorptionCoeff);
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return aBSDF;
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}
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// =======================================================================
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// function : CreateGlass
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// purpose :
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// =======================================================================
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Graphic3d_BSDF Graphic3d_BSDF::CreateGlass (const Graphic3d_Vec3& theWeight,
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const Graphic3d_Vec3& theAbsorptionColor,
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const float theAbsorptionCoeff,
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const float theRefractionIndex)
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{
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Graphic3d_BSDF aBSDF;
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// Create Fresnel parameters for the coat layer
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aBSDF.FresnelCoat = Graphic3d_Fresnel::CreateDielectric (theRefractionIndex);
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aBSDF.Kt = theWeight;
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aBSDF.Kc.r() = aBSDF.Kt.r();
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aBSDF.Kc.g() = aBSDF.Kt.g();
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aBSDF.Kc.b() = aBSDF.Kt.b();
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aBSDF.Absorption = Graphic3d_Vec4 (theAbsorptionColor,
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theAbsorptionCoeff);
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return aBSDF;
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}
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// =======================================================================
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// function : CreateMetallicRoughness
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// purpose :
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// =======================================================================
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Graphic3d_BSDF Graphic3d_BSDF::CreateMetallicRoughness (const Graphic3d_PBRMaterial& thePbr)
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{
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const Graphic3d_Vec3 aDiff = (Graphic3d_Vec3 )thePbr.Color().GetRGB() * thePbr.Alpha();
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const Standard_ShortReal aRougness2 = thePbr.NormalizedRoughness() * thePbr.NormalizedRoughness();
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Graphic3d_BSDF aBsdf;
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aBsdf.Le = thePbr.Emission();
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if (thePbr.IOR() > 1.0f
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&& thePbr.Alpha() < 1.0f
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&& thePbr.Metallic() <= ShortRealEpsilon())
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{
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aBsdf.FresnelCoat = Graphic3d_Fresnel::CreateDielectric (thePbr.IOR());
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aBsdf.Kt = Graphic3d_Vec3(1.0f);
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aBsdf.Kc.r() = aBsdf.Kt.r();
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aBsdf.Kc.g() = aBsdf.Kt.g();
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aBsdf.Kc.b() = aBsdf.Kt.b();
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aBsdf.Absorption.SetValues (thePbr.Color().GetRGB(), thePbr.Alpha() * 0.25f);
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}
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else
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{
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aBsdf.FresnelBase = Graphic3d_Fresnel::CreateSchlick (aDiff * thePbr.Metallic());
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aBsdf.Ks.SetValues (Graphic3d_Vec3 (thePbr.Alpha()), aRougness2);
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aBsdf.Kt = Graphic3d_Vec3 (1.0f - thePbr.Alpha());
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aBsdf.Kd = aDiff * (1.0f - thePbr.Metallic());
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}
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return aBsdf;
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}
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//=======================================================================
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//function : DumpJson
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//purpose :
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//=======================================================================
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void Graphic3d_BSDF::DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth) const
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{
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OCCT_DUMP_CLASS_BEGIN (theOStream, Graphic3d_BSDF)
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OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &Kc)
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OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &Kd)
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OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &Ks)
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OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &Kt)
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OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &Le)
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OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &Absorption)
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OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &FresnelCoat)
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OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &FresnelBase)
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}
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