69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
/*
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* Created by Brett Terpstra 6920201 on 17/10/22.
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* Copyright (c) 2022 Brett Terpstra. All Rights Reserved.
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*/
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#ifndef STEP_2_MODELS_H
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#define STEP_2_MODELS_H
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#include "engine/util/std.h"
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#include "engine/math/vectors.h"
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#include "engine/math/colliders.h"
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namespace Raytracing {
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// triangle type for model loading
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struct Triangle {
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public:
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Vec4 vertex1, vertex2, vertex3;
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Vec4 normal1, normal2, normal3;
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Vec4 uv1, uv2, uv3;
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bool hasNormals = false;
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AABB aabb;
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Triangle(const Vec4& v1, const Vec4& v2, const Vec4& v3): vertex1(v1), vertex2(v2), vertex3(v3) {}
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Triangle(const Vec4& v1, const Vec4& v2, const Vec4& v3,
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const Vec4& n1, const Vec4& n2, const Vec4& n3): vertex1(v1), vertex2(v2), vertex3(v3),
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hasNormals(true), normal1(n1), normal2(n2), normal3(n3) {}
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Triangle(const Vec4& v1, const Vec4& v2, const Vec4& v3,
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const Vec4& uv1, const Vec4& uv2, const Vec4& uv3,
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const Vec4& n1, const Vec4& n2, const Vec4& n3): vertex1(v1), vertex2(v2), vertex3(v3),
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uv1(uv1), uv2(uv2), uv3(uv3),
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hasNormals(true), normal1(n1), normal2(n2), normal3(n3) {}
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};
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// face type for model loading
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struct face {
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int v1, v2, v3;
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int uv1, uv2, uv3;
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int n1, n2, n3;
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};
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struct ModelData {
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// storing all this data is memory inefficient
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// since normals and vertices are only vec3s
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// and uvs are vec2s
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// TODO: create lower order vector classes
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std::vector<Vec4> vertices;
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std::vector<Vec4> uvs;
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std::vector<Vec4> normals;
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std::vector<face> faces;
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};
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struct TriangulatedModel {
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std::vector<std::shared_ptr<Triangle>> triangles;
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AABB aabb;
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explicit TriangulatedModel(const ModelData& data);
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};
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class OBJLoader {
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private:
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public:
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static ModelData loadModel(const std::string& file);
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};
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}
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#endif //STEP_2_MODELS_H
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