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Add boxes to cornell box

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CJSatnarine
2024-07-10 20:57:10 -04:00
parent 1ff91061ba
commit f42d13bbd7
5 changed files with 341684 additions and 341658 deletions
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22
quad.h
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@@ -3,6 +3,7 @@
#include "rayTracer.h"
#include "hittable.h"
#include "hittableList.h"
class quad : public hittable {
public:
@@ -77,5 +78,26 @@ class quad : public hittable {
double D;
};
inline shared_ptr<hittableList> box(const point3& a, const point3& b, shared_ptr<material> mat) {
// Returns the 3D box (six sides) that contains the two opposite vertices a and b.
auto sides = make_shared<hittableList>();
// Construct the two opposite vertices with the minimum and maximum coordinates.
auto min = point3(fmin(a.x(), b.x()), fmin(a.y(), b.y()), fmin(a.z(), b.z()));
auto max = point3(fmax(a.x(), b.x()), fmax(a.y(), b.y()), fmax(a.z(), b.z()));
auto dx = vec3(max.x() - min.x(), 0, 0);
auto dy = vec3(0, max.y() - min.y(), 0);
auto dz = vec3(0, 0, max.z() - min.z());
sides->add(make_shared<quad>(point3(min.x(), min.y(), max.z()), dx, dy, mat)); // front
sides->add(make_shared<quad>(point3(max.x(), min.y(), max.z()), -dz, dy, mat)); // right
sides->add(make_shared<quad>(point3(max.x(), min.y(), min.z()), -dx, dy, mat)); // back
sides->add(make_shared<quad>(point3(min.x(), min.y(), min.z()), dz, dy, mat)); // left
sides->add(make_shared<quad>(point3(min.x(), max.y(), max.z()), dx, -dz, mat)); // top
sides->add(make_shared<quad>(point3(min.x(), min.y(), min.z()), dx, dz, mat)); // bottom
return sides;
}
#endif