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Add transformation to objects.

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Godzil
2020-02-17 14:15:55 +00:00
parent b799e5f819
commit 00b283053e
5 changed files with 107 additions and 4 deletions
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9
source/objects/sphere.cpp
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@@ -17,10 +17,13 @@ Intersect Sphere::intersect(Ray r)
{
Intersect ret;
double a, b, c, discriminant;
Tuple sphere_to_ray = r.origin - Point(0, 0, 0);
a = r.direction.dot(r.direction);
b = 2 * r.direction.dot(sphere_to_ray);
Ray transRay = this->invTransform(r);
Tuple sphere_to_ray = transRay.origin - Point(0, 0, 0);
a = transRay.direction.dot(transRay.direction);
b = 2 * transRay.direction.dot(sphere_to_ray);
c = sphere_to_ray.dot(sphere_to_ray) - 1;
discriminant = b * b - 4 * a * c;