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Huge speed up by changing how Intersect are shared.

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Godzil
2020-03-12 00:11:26 +00:00
parent 0aa949c60b
commit b00bb75189
38 changed files with 116 additions and 153 deletions
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14
source/shapes/triangle.cpp
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@@ -21,15 +21,13 @@ Triangle::Triangle(Point p1, Point p2, Point p3) : Shape(Shape::TRIANGLE), p1(p1
this->normal = e2.cross(e1).normalise();
}
Intersect Triangle::localIntersect(Ray r)
void Triangle::localIntersect(Ray r, Intersect &xs)
{
Intersect ret;
Tuple dirCrossE2 = r.direction.cross(this->e2);
double determinant = this->e1.dot(dirCrossE2);
if (fabs(determinant) < getEpsilon())
{
return ret;
return;
}
double f = 1.0 / determinant;
@@ -40,18 +38,16 @@ Intersect Triangle::localIntersect(Ray r)
if ((u < 0) || (u > 1))
{
return ret;
return;
}
if ((v < 0) || ((u + v) > 1))
{
return ret;
return;
}
double t = f * this->e2.dot(originCrossE1);
ret.add(Intersection(t, this, u, v));
return ret;
xs.add(Intersection(t, this, u, v));
}
Tuple Triangle::localNormalAt(Tuple point, Intersection *hit)