void Frustum::Transform(const float3x4 &transform) { assume(transform.HasUniformScale()); pos = transform.MulPos(pos); front = transform.MulDir(front); float scaleFactor = front.Normalize(); up = transform.MulDir(up).Normalized(); nearPlaneDistance *= scaleFactor; farPlaneDistance *= scaleFactor; if (type == OrthographicFrustum) { orthographicWidth *= scaleFactor; orthographicHeight *= scaleFactor; } }
void Circle::Transform(const float3x4 &transform) { assume(transform.HasUniformScale()); assume(transform.IsColOrthogonal()); pos = transform.MulPos(pos); normal = transform.MulDir(normal).Normalized(); r *= transform.Col(0).Length(); // Scale the radius of the circle. }
Ray operator *(const float3x4 &transform, const Ray &ray) { return Ray(transform.MulPos(ray.pos), transform.MulDir(ray.dir)); }
void Ray::Transform(const float3x4 &transform) { pos = transform.MulPos(pos); dir = transform.MulDir(dir); }
Ray operator *(const float3x4 &transform, const Ray &ray) { assume(transform.IsInvertible()); return Ray(transform.MulPos(ray.pos), transform.MulDir(ray.dir).Normalized()); }
Line operator *(const float3x4 &transform, const Line &l) { return Line(transform.MulPos(l.pos), transform.MulDir(l.dir)); }
Ray operator *(const float3x4 &transform, const Ray &ray) { assume(transform.IsInvertible(1e-6f)); // Tundra: use smaller epsilon in order to prevent assumption spam when raycasting to non-uniformly scaled objects. return Ray(transform.MulPos(ray.pos), transform.MulDir(ray.dir).Normalized()); }