org.sunflow.core
Interface CameraLens
- RenderObject
- FisheyeLens, PinholeLens, SphericalLens, ThinLens
public interface CameraLens
Represents a mapping from the 3D scene onto the final image. A camera lens is
responsible for determining what ray to cast through each pixel.
Ray | getRay(float x, float y, int imageWidth, int imageHeight, double lensX, double lensY, double time) - Create a new
ray to be cast through pixel (x,y) on the image
plane.
|
getRay
public Ray getRay(float x,
float y,
int imageWidth,
int imageHeight,
double lensX,
double lensY,
double time)
Create a new
ray
to be cast through pixel (x,y) on the image
plane. Two sampling parameters are provided for lens sampling. They are
guarenteed to be in the interval [0,1). They can be used to perturb the
position of the source of the ray on the lens of the camera for DOF
effects. A third sampling parameter is provided for motion blur effects.
Note that the
Camera
class already handles camera movement motion
blur. Rays should be generated in camera space - that is, with the eye at
the origin, looking down the -Z axis, with +Y pointing up.
x
- x coordinate of the (sub)pixely
- y coordinate of the (sub)pixelimageWidth
- image width in pixelsimageHeight
- image height in pixelslensX
- x lens sampling parameterlensY
- y lens sampling parametertime
- time sampling parameter
- a new ray passing through the given pixel