Package org.sunflow.core
Class Camera
- java.lang.Object
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- org.sunflow.core.Camera
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- All Implemented Interfaces:
RenderObject
public class Camera extends java.lang.Object implements RenderObject
This class represents a camera to the renderer. It handles the mapping of camera space to world space, as well as the mounting ofCameraLens
objects which compute the actual projection.
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Constructor Summary
Constructors Constructor Description Camera(CameraLens lens)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Ray
getRay(float x, float y, int imageWidth, int imageHeight, double lensX, double lensY, float time)
Generate a ray passing though the specified point on the image plane.float
getTime(float time)
Computes actual time from a time sample in the interval [0,1).boolean
update(ParameterList pl, SunflowAPI api)
Update this object given a list of parameters.
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Constructor Detail
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Camera
public Camera(CameraLens lens)
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Method Detail
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update
public boolean update(ParameterList pl, SunflowAPI api)
Description copied from interface:RenderObject
Update this object given a list of parameters. This method is guarenteed to be called at least once on every object, but it should correctly handle empty parameter lists. This means that the object should be in a valid state from the time it is constructed. This method should also return true or false depending on whether the update was succesfull or not.- Specified by:
update
in interfaceRenderObject
- Parameters:
pl
- list of parameters to read fromapi
- reference to the current scene- Returns:
true
if the update is succesfull,false
otherwise
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getTime
public float getTime(float time)
Computes actual time from a time sample in the interval [0,1). This random number is mapped somewhere between the shutterOpen and shutterClose times.- Parameters:
time
-- Returns:
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getRay
public Ray getRay(float x, float y, int imageWidth, int imageHeight, double lensX, double lensY, float time)
Generate a ray passing though the specified point on the image plane. Additional random variables are provided for the lens to optionally compute depth-of-field or motion blur effects. Note that the camera may returnnull
for invalid arguments or for pixels which don't project to anything.- Parameters:
x
- x pixel coordinatey
- y pixel coordinateimageWidth
- width of the image in pixelsimageHeight
- height of the image in pixelslensX
- a random variable in [0,1) to be used for DOF samplinglensY
- a random variable in [0,1) to be used for DOF samplingtime
- a random variable in [0,1) to be used for motion blur sampling- Returns:
- a ray passing through the specified pixel, or
null
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