triangle.h

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#pragma once
 
#include <glm/vec3.hpp>
#include <glm/vec2.hpp>
#include <optional>
 
namespace Saga::Geometry {
    struct Triangle {
        glm::vec3 a,b,c;
 
        std::optional<glm::vec3> normal_cached;
 
        glm::vec3 toBarycentric(const glm::vec3 pos);
 
        glm::vec2 toUV(const glm::vec3 pos);
 
        glm::vec3 getNormal();
    };
 
    std::optional<float> rayTriangleIntersection(const glm::vec3& origin, const glm::vec3& rayDirection, Triangle triangle);
 
    glm::vec3 getClosestPoint(const glm::vec3 pointPos, Triangle triangle);
}