1// Copyright (C) 2008-2012 NVIDIA Corporation.
2// Copyright (C) 2019 The Qt Company Ltd.
3// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
4
5#ifndef QSSG_RENDER_DEFAULT_MATERIAL_H
6#define QSSG_RENDER_DEFAULT_MATERIAL_H
7
8//
9// W A R N I N G
10// -------------
11//
12// This file is not part of the Qt API. It exists purely as an
13// implementation detail. This header file may change from version to
14// version without notice, or even be removed.
15//
16// We mean it.
17//
18
19#include <QtQuick3DRuntimeRender/private/qssgrendergraphobject_p.h>
20
21#include <QtQuick3DUtils/private/qssgrenderbasetypes_p.h>
22
23#include <QtGui/QVector3D>
24
25QT_BEGIN_NAMESPACE
26
27struct QSSGRenderImage;
28struct QSSGRenderModel;
29struct QSSGShaderMaterialAdapter;
30
31struct Q_QUICK3DRUNTIMERENDER_EXPORT QSSGRenderDefaultMaterial : QSSGRenderGraphObject
32{
33 enum class MaterialLighting : quint8
34 {
35 NoLighting = 0,
36 FragmentLighting
37 };
38 enum class MaterialBlendMode : quint8
39 {
40 SourceOver = 0,
41 Screen,
42 Multiply
43 };
44 enum class MaterialSpecularModel : quint8
45 {
46 Default = 0,
47 KGGX
48 };
49 enum MaterialAlphaMode : quint8
50 {
51 Default = 0,
52 Mask,
53 Blend,
54 Opaque
55 };
56 enum TextureChannelMapping : quint8
57 {
58 R = 0,
59 G,
60 B,
61 A
62 };
63
64 enum VertexColorMask : quint16
65 {
66 NoMask = 0,
67 RoughnessMask = 1,
68 NormalStrengthMask = 2,
69 SpecularAmountMask = 4,
70 ClearcoatAmountMask = 8,
71 ClearcoatRoughnessAmountMask = 16,
72 ClearcoatNormalStrengthMask = 32,
73 HeightAmountMask = 64,
74 MetalnessMask = 128,
75 OcclusionAmountMask = 256,
76 ThicknessFactorMask = 512,
77 TransmissionFactorMask = 1024
78 };
79 Q_DECLARE_FLAGS(VertexColorMaskFlags, VertexColorMask)
80
81 QSSGRenderImage *colorMap = nullptr;
82 // material section
83 QSSGRenderImage *iblProbe = nullptr;
84 QSSGRenderImage *emissiveMap = nullptr;
85 QSSGRenderImage *specularReflection = nullptr;
86 QSSGRenderImage *specularMap = nullptr;
87 QSSGRenderImage *roughnessMap = nullptr;
88 QSSGRenderImage *opacityMap = nullptr;
89 QSSGRenderImage *bumpMap = nullptr;
90 QSSGRenderImage *normalMap = nullptr;
91 QSSGRenderImage *translucencyMap = nullptr;
92 QSSGRenderImage *metalnessMap = nullptr;
93 QSSGRenderImage *occlusionMap = nullptr;
94 QSSGRenderImage *heightMap = nullptr;
95 QSSGRenderImage *clearcoatMap = nullptr;
96 QSSGRenderImage *clearcoatRoughnessMap = nullptr;
97 QSSGRenderImage *clearcoatNormalMap = nullptr;
98 QSSGRenderImage *transmissionMap = nullptr;
99 QSSGRenderImage *thicknessMap = nullptr;
100
101 // Note that most default values here are irrelevant as the material
102 // (Default or Principled) will write its own defaults or actual values
103 // during sync.
104 QVector3D specularTint{ 1.0f, 1.0f, 1.0f };
105 float ior = 1.45f; // relevant for Default only
106 QVector3D emissiveColor = { 1.0f, 1.0f, 1.0f };
107 QVector4D color{ 1.0f, 1.0f, 1.0f, 1.0f }; // colors are 0-1 normalized
108 float diffuseLightWrap = 0.0f; // 0 - 1
109 float fresnelScaleBiasEnabled = false;
110 float fresnelScale = 1.0f;
111 float fresnelBias = 0.0f;
112 float fresnelPower = 0.0f;
113 float clearcoatFresnelScaleBiasEnabled = false;
114 float clearcoatFresnelScale = 1.0f;
115 float clearcoatFresnelBias = 0.0f;
116 float clearcoatFresnelPower = 5.0f;
117 float specularAmount = 1.0f; // 0-1
118 float specularRoughness = 0.0f; // 0-1
119 float metalnessAmount = 0.0f;
120 float opacity = 1.0f; // 0-1
121 bool invertOpacityMapValue = false;
122 bool baseColorSingleChannelEnabled = false;
123 bool specularAmountSingleChannelEnabled = false;
124 bool emissiveSingleChannelEnabled = false;
125 float bumpAmount = 0.0f; // 0-??
126 float translucentFalloff = 0.0f; // 0 - ??
127 float occlusionAmount = 1.0f; // 0 - 1
128 float alphaCutoff = 0.5f; // 0 - 1
129 float heightAmount = 0.0f; // 0 - 1
130 int minHeightSamples = 8;
131 int maxHeightSamples = 32;
132 float clearcoatAmount = 0.0f; // 0 - 1
133 float clearcoatRoughnessAmount = 0.0f; // 0 - 1
134 float clearcoatNormalStrength = 1.0f; // 0 - 1
135 float transmissionFactor = 0.0f; // 0 - 1
136 float thicknessFactor = 0.0f; // 0 - 1
137 float attenuationDistance = std::numeric_limits<float>::infinity();
138 QVector3D attenuationColor { 1.0f, 1.0f, 1.0f };
139
140 MaterialLighting lighting = MaterialLighting::FragmentLighting;
141 QSSGRenderDefaultMaterial::MaterialBlendMode blendMode = QSSGRenderDefaultMaterial::MaterialBlendMode::SourceOver;
142 QSSGRenderDefaultMaterial::MaterialSpecularModel specularModel = QSSGRenderDefaultMaterial::MaterialSpecularModel::Default;
143 QSSGRenderDefaultMaterial::MaterialAlphaMode alphaMode = QSSGRenderDefaultMaterial::Default;
144 QSSGCullFaceMode cullMode = QSSGCullFaceMode::Back;
145 QSSGDepthDrawMode depthDrawMode = QSSGDepthDrawMode::OpaqueOnly;
146 bool vertexColorsEnabled = false;
147 bool vertexColorsMaskEnabled = false;
148 bool dirty = true;
149 TextureChannelMapping roughnessChannel = TextureChannelMapping::R;
150 TextureChannelMapping opacityChannel = TextureChannelMapping::A;
151 TextureChannelMapping translucencyChannel = TextureChannelMapping::A;
152 TextureChannelMapping metalnessChannel = TextureChannelMapping::R;
153 TextureChannelMapping occlusionChannel = TextureChannelMapping::R;
154 TextureChannelMapping heightChannel = TextureChannelMapping::R;
155 TextureChannelMapping clearcoatChannel = TextureChannelMapping::R;
156 TextureChannelMapping clearcoatRoughnessChannel = TextureChannelMapping::G;
157 TextureChannelMapping transmissionChannel = TextureChannelMapping::R;
158 TextureChannelMapping thicknessChannel = TextureChannelMapping::G;
159 TextureChannelMapping baseColorChannel = TextureChannelMapping::R;
160 TextureChannelMapping specularAmountChannel = TextureChannelMapping::R;
161 TextureChannelMapping emissiveChannel = TextureChannelMapping::R;
162 float pointSize = 1.0f;
163 float lineWidth = 1.0f;
164 VertexColorMaskFlags vertexColorRedMask = VertexColorMask::NoMask;
165 VertexColorMaskFlags vertexColorGreenMask = VertexColorMask::NoMask;
166 VertexColorMaskFlags vertexColorBlueMask = VertexColorMask::NoMask;
167 VertexColorMaskFlags vertexColorAlphaMask = VertexColorMask::NoMask;
168
169 QSSGRenderDefaultMaterial(Type type = Type::DefaultMaterial);
170 ~QSSGRenderDefaultMaterial();
171
172 bool isSpecularEnabled() const { return specularAmount > .01f; }
173 bool isMetalnessEnabled() const { return metalnessAmount > 0.01f; }
174 bool isFresnelScaleBiasEnabled() const { return fresnelScaleBiasEnabled; }
175 bool isClearcoatFresnelScaleBiasEnabled() const { return clearcoatFresnelScaleBiasEnabled; }
176 bool isFresnelEnabled() const { return fresnelPower > 0.0f; }
177 bool isVertexColorsEnabled() const { return vertexColorsEnabled; }
178 bool isVertexColorsMaskEnabled() const { return vertexColorsMaskEnabled; }
179 bool isInvertOpacityMapValue() const { return invertOpacityMapValue; }
180 bool isBaseColorSingleChannelEnabled() const { return baseColorSingleChannelEnabled; }
181 bool isSpecularAmountSingleChannelEnabled() const { return specularAmountSingleChannelEnabled; }
182 bool isEmissiveSingleChannelEnabled() const { return emissiveSingleChannelEnabled; }
183 bool hasLighting() const { return lighting != MaterialLighting::NoLighting; }
184 bool isClearcoatEnabled() const { return clearcoatAmount > 0.01f; }
185 bool isTransmissionEnabled() const { return transmissionFactor > 0.01f; }
186
187 [[nodiscard]] inline bool isDirty() const { return dirty; }
188 void clearDirty();
189
190 QSSGShaderMaterialAdapter *adapter = nullptr;
191
192 QString debugObjectName;
193};
194
195QT_END_NAMESPACE
196
197#endif
198

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source code of qtquick3d/src/runtimerender/graphobjects/qssgrenderdefaultmaterial_p.h