 Ray[Class Summary] |
 pos |
| dir |
 ctor (+3 overloads) |
| GetPoint(distance)[const] |
| Transform(transform) (+3 overloads) |
| Contains(...)[const] (+1 overload) |
| Equals(otherRay,epsilon)[const] |
| Distance(point,d)[const] (+9 overloads) |
| ClosestPoint(targetPoint,d)[const] (+3 overloads) |
| Intersects(...)[const] (+13 overloads) |
| IntersectsDisc(disc)[const] |
| ToLine()[const] |
| ToLineSegment(d)[const] |
Ray::GetPoint
Syntax
float3 Ray::GetPoint(float distance) const; [5 lines of code]Gets a point along the ray at the given distance.
Use this function to convert a 1D parametric point along the Ray to a 3D point in the linear space.
Parameters
floatdistanceThe point to compute. GetPoint(0) will return pos. GetPoint(t) will return a point at distance |t| from pos. Passing in negative values is allowed, but in that case, the returned point does not actually lie on this Ray.
Return Value
pos + distance * dir.
Performance
4.105nsecs/call ≈ 243.59M calls/second ≈ 4.06M calls/frame (@ 60fps).
This function does not perform dynamic memory allocation.