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java.lang.Objectorg.sunflow.core.light.DirectionalSpotlight
public class DirectionalSpotlight
Constructor Summary | |
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DirectionalSpotlight()
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Method Summary | |
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Instance |
createInstance()
Create an instance which represents the geometry of this light source. |
int |
getLowSamples()
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int |
getNumSamples()
Get the maximum number of samples that can be taken from this light source. |
void |
getPhoton(double randX1,
double randY1,
double randX2,
double randY2,
Point3 p,
Vector3 dir,
Color power)
Gets a photon to emit from this light source by setting each of the arguments. |
float |
getPower()
Get the total power emitted by this light source. |
void |
getSamples(ShadingState state)
Samples the light source to compute direct illumination. |
boolean |
update(ParameterList pl,
SunflowAPI api)
Update this object given a list of parameters. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public DirectionalSpotlight()
Method Detail |
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public boolean update(ParameterList pl, SunflowAPI api)
RenderObject
update
in interface RenderObject
pl
- list of parameters to read fromapi
- reference to the current scene
true
if the update is succesfull,
false
otherwisepublic int getNumSamples()
LightSource
getNumSamples
in interface LightSource
public int getLowSamples()
public void getSamples(ShadingState state)
LightSource
LightSample
class and added to the
current ShadingState
. This method is responsible for the
shooting of shadow rays which allows for non-physical lights that don't
cast shadows. It is recommended that only a single shadow ray be shot if
ShadingState.getDiffuseDepth()
is greater than 0. This avoids an
exponential number of shadow rays from being traced.
getSamples
in interface LightSource
state
- current state, including point to be shadedLightSample
public void getPhoton(double randX1, double randY1, double randX2, double randY2, Point3 p, Vector3 dir, Color power)
LightSource
getPhoton
in interface LightSource
randX1
- sampling parameterrandY1
- sampling parameterrandX2
- sampling parameterrandY2
- sampling parameterp
- position to shoot the photon fromdir
- direction to shoot the photon inpower
- power of the photonpublic float getPower()
LightSource
getPower
in interface LightSource
public Instance createInstance()
LightSource
null
to
indicate that no geometry needs to be created.
createInstance
in interface LightSource
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