1 #ifndef DALI_DEMO_PBR_OBJ_LOADER_H
2 #define DALI_DEMO_PBR_OBJ_LOADER_H
5 * Copyright (c) 2020 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
22 #include <dali/public-api/rendering/geometry.h>
43 pointMin = Vector3(std::numeric_limits<float>::max(), std::numeric_limits<float>::max(), std::numeric_limits<float>::max());
44 pointMax = Vector3(std::numeric_limits<float>::min(), std::numeric_limits<float>::min(), std::numeric_limits<float>::min());
47 void ConsiderNewPointInVolume(const Vector3& position)
49 pointMin.x = std::min(position.x, pointMin.x);
50 pointMin.y = std::min(position.y, pointMin.y);
51 pointMin.z = std::min(position.z, pointMin.z);
53 pointMax.x = std::max(position.x, pointMax.x);
54 pointMax.y = std::max(position.y, pointMax.y);
55 pointMax.z = std::max(position.z, pointMax.z);
62 //Defines bit masks to declare which properties are needed by anyone requesting a geometry.
65 TEXTURE_COORDINATES = 1 << 0,
74 bool IsMaterialLoaded();
76 bool LoadObject(char* objBuffer, std::streampos fileSize);
78 void LoadMaterial(char* objBuffer, std::streampos fileSize, std::string& diffuseTextureUrl, std::string& normalTextureUrl, std::string& glossTextureUrl);
80 Geometry CreateGeometry(int objectProperties, bool useSoftNormals);
87 bool IsTexturePresent();
88 bool IsDiffuseMapPresent();
89 bool IsNormalMapPresent();
90 bool IsSpecularMapPresent();
93 Dali::Vector<Vector3> mPoints;
94 Dali::Vector<Vector2> mTextureUv;
95 Dali::Vector<Vector2> mTextureUv2;
96 Dali::Vector<Vector3> mNormals;
97 Dali::Vector<Vector3> mTangents;
98 Dali::Vector<Vector3> mBiTangents;
99 Dali::Vector<TriIndex> mTriangles;
101 BoundingVolume mSceneAABB;
104 bool mMaterialLoaded;
107 //Material file properties.
110 bool mHasSpecularMap;
113 * @brief Calculates normals for each point on a per-face basis.
115 * There are multiple normals per point, each corresponding to the normal of a face connecting to the point.
117 * @param[in] vertices The vertices of the object.
118 * @param[in, out] triangles The triangles that form the faces. The normals of each triangle will be updated.
119 * @param[in, out] normals The normals to be calculated.
121 void CalculateHardFaceNormals(const Dali::Vector<Vector3>& vertices,
122 Dali::Vector<TriIndex>& triangles,
123 Dali::Vector<Vector3>& normals);
126 * @brief Calculates smoothed normals for each point.
128 * There is one normal per point, an average of the connecting faces.
130 * @param[in] vertices The vertices of the object.
131 * @param[in, out] triangles The triangles that form the faces. The normals of each triangle will be updated.
132 * @param[in, out] normals The normals to be calculated.
134 void CalculateSoftFaceNormals(const Dali::Vector<Vector3>& vertices,
135 Dali::Vector<TriIndex>& triangles,
136 Dali::Vector<Vector3>& normals);
139 * @brief Calculates tangents and bitangents for each point of the object.
141 * These are calculated using the object's points, texture coordinates and normals, so these must be initialised first.
143 void CalculateTangentFrame();
145 void CenterAndScale(bool center, Dali::Vector<Vector3>& points);
148 * @brief Using the data loaded from the file, create arrays of data to be used in creating the geometry.
150 * @param[out] positions The positions of the vertices of the object.
151 * @param[out] normals The normals of the vertices of the object.
152 * @param[out] tangents The tangents of the vertices of the object.
153 * @param[out] textures The texture coordinates of the vertices of the object.
154 * @param[out] indices Indices of corresponding values to match triangles to their respective data.
155 * @param[in] useSoftNormals Indicates whether we should average the normals at each point to smooth the surface or not.
157 void CreateGeometryArray(Dali::Vector<Vector3>& positions,
158 Dali::Vector<Vector3>& normals,
159 Dali::Vector<Vector3>& tangents,
160 Dali::Vector<Vector2>& textures,
161 Dali::Vector<unsigned short>& indices,
162 bool useSoftNormals);
165 } // namespace PbrDemo
167 #endif // DALI_DEMO_PBR_OBJ_LOADER_H