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java.lang.Objectcz.cuni.jagrlib.DefaultProperty
cz.cuni.jagrlib.Piece
cz.cuni.jagrlib.DefaultLightSource
public abstract class DefaultLightSource
Default implementation of LightSource
interface.
Simple and supersampled variants point to each other.
Field Summary | |
---|---|
protected static java.lang.String |
CATEGORY
Object category. |
protected Intersectable |
inter
Object used for light-source visibility tests. |
static java.lang.String |
KEY_LIGHT
JGL script key: lights. |
static java.lang.String |
PARAMS
Property name: light source parameters. |
protected boolean |
plugInter
Accelerator: connected intersectable was tried? |
protected java.lang.String |
scriptName
JGL script file-name. |
protected static java.lang.String |
TEMPLATE_NAME
Object template identifier. |
Fields inherited from class cz.cuni.jagrlib.Piece |
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channels, info, pl, plugs, reg, TEMPLATE_TYPE, userBreak |
Fields inherited from interface cz.cuni.jagrlib.iface.LightSource |
---|
COLOR |
Fields inherited from interface cz.cuni.jagrlib.iface.Property |
---|
LOGGING, STATISTICS, TEXT_DESCRIPTION |
Constructor Summary | |
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DefaultLightSource()
|
Method Summary | |
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protected boolean |
assertInter()
Asserts the inter accelerator. |
boolean |
getDirection(MicroFacet mf,
double[] dir)
Returns light direction between the source and the given MicroFacet . |
boolean |
getDirection(MicroFacet mf,
int order,
int total,
double[] dir)
Returns light direction between the source and the given MicroFacet . |
boolean |
getIntensity(MicroFacet mf,
double[] color)
Returns light intensity coming from the source to the given MicroFacet . |
boolean |
getIntensity(MicroFacet mf,
int order,
int total,
double[] color)
Returns light intensity coming from the source to the given MicroFacet . |
boolean |
isDeltaLight()
Is delta light? |
boolean |
lights(MicroFacet mf)
Lighting test from the source to the given MicroFacet . |
boolean |
lights(MicroFacet mf,
int order,
int total)
Lighting test from the source to the given MicroFacet . |
double |
pdf(double[] point,
double[] normal,
double[] dir)
Return probability density function. |
double |
sample(double u1,
double v1,
double u2,
double v2,
double[] pos,
double[] dir,
double[] power)
Generates one photon leaving this light source. |
boolean |
sample(MicroFacet mf,
double u,
double v,
double[] color,
double[] dir,
double[] pdf,
boolean testVisibility)
Sample the light by one shadow ray. |
Intersectable |
setIntersectable(Intersectable intersect)
Sets intersectable object (for light-source of visibility: lights(MicroFacet) , ..). |
Methods inherited from class cz.cuni.jagrlib.Piece |
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className, connect, findPlug, findPlug, getInfo, getInterface, getInterface, getPlug, getReg, init, isCompatible, isCompatible, isConnected, logError, logWarning, myInterface, newInputPlug, newOptOutputPlug, newOutputPlug, newPlug, noTemplates, propBegin, propBounds, propDefault, propEnd, propEnum, propManipulator, propManipulator, setProgressListener, setRegStrings, setTemplate, setTemplateDynamic, stop |
Methods inherited from class cz.cuni.jagrlib.DefaultProperty |
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booleanProperty, booleanProperty, colorDoubleProperty, colorProperty, commit, doubleProperty, doubleProperty, doubleProperty, enumProperty, floatProperty, floatProperty, floatProperty, get, intProperty, intProperty, intProperty, longProperty, longProperty, longProperty, set, set, stringProperty |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface cz.cuni.jagrlib.iface.Property |
---|
commit, get, set |
Field Detail |
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public static final java.lang.String KEY_LIGHT
public static final java.lang.String PARAMS
protected java.lang.String scriptName
protected Intersectable inter
protected boolean plugInter
protected static final java.lang.String TEMPLATE_NAME
protected static final java.lang.String CATEGORY
Constructor Detail |
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public DefaultLightSource()
Method Detail |
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protected boolean assertInter()
inter
accelerator.
true
if failed.public Intersectable setIntersectable(Intersectable intersect)
lights(MicroFacet)
, ..).
setIntersectable
in interface LightSource
public boolean lights(MicroFacet mf)
MicroFacet
.
lights
in interface LightSource
mf
- The checked MicroFacet
(point on surface of some solid).
getIntensity(cz.cuni.jagrlib.MicroFacet, double[])
,
getDirection(cz.cuni.jagrlib.MicroFacet, double[])
public boolean lights(MicroFacet mf, int order, int total)
MicroFacet
.
Super-sampling variant.
lights
in interface LightSource
mf
- The checked MicroFacet
(point on surface of some solid).order
- Order of this sample inside the actual pixel.total
- Total number of samples in the actual pixel.
getIntensity(cz.cuni.jagrlib.MicroFacet, double[])
,
getDirection(cz.cuni.jagrlib.MicroFacet, double[])
public boolean getIntensity(MicroFacet mf, double[] color)
MicroFacet
.
getIntensity
in interface LightSource
mf
- The MicroFacet
(point on surface of some solid).color
- Pre-allocated double[C] array to hold result - light intensity
coming from the source to the given point (C can be either 1
/for monochrome computing/, 3 /for RGB color system/ or greater /for more
complex spectral color sampling/).
lights(cz.cuni.jagrlib.MicroFacet)
,
getDirection(cz.cuni.jagrlib.MicroFacet, double[])
public boolean getIntensity(MicroFacet mf, int order, int total, double[] color)
MicroFacet
.
Super-sampling variant.
getIntensity
in interface LightSource
mf
- The MicroFacet
(point on surface of some solid).order
- Order of this sample inside the actual pixel.total
- Total number of samples in the actual pixel.color
- Pre-allocated double[C] array to hold result - light intensity
coming from the source to the given point (C can be either 1
/for monochrome computing/, 3 /for RGB color system/ or greater /for more
complex spectral color sampling/).
lights(cz.cuni.jagrlib.MicroFacet)
,
getDirection(cz.cuni.jagrlib.MicroFacet, double[])
public boolean getDirection(MicroFacet mf, double[] dir)
MicroFacet
.
getDirection
in interface LightSource
mf
- The MicroFacet
(point on surface of some solid).dir
- Pre-allocated array to hold the result - normalised direction vector
from the MicroFacet
to the light source.
lights(cz.cuni.jagrlib.MicroFacet)
,
getIntensity(cz.cuni.jagrlib.MicroFacet, double[])
public boolean getDirection(MicroFacet mf, int order, int total, double[] dir)
MicroFacet
.
Super-sampling variant.
getDirection
in interface LightSource
mf
- The MicroFacet
(point on surface of some solid).order
- Order of this sample inside the actual pixel.total
- Total number of samples in the actual pixel.dir
- Pre-allocated array to hold the result - normalised direction vector
from the MicroFacet
to the light source.
lights(cz.cuni.jagrlib.MicroFacet)
,
getIntensity(cz.cuni.jagrlib.MicroFacet, double[])
public boolean sample(MicroFacet mf, double u, double v, double[] color, double[] dir, double[] pdf, boolean testVisibility)
sample
in interface LightSource
mf
- The MicroFacet
(point on surface of some solid).ksi1
- Uniform random number.ksi1
- Uniform random number.color
- Pre-allocated double[C] array to hold result - light intensity
coming from the source to the given point (C can be either 1
/for monochrome computing/, 3 /for RGB color system/ or greater /for more
complex spectral color sampling/).dir
- Pre-allocated array to hold the result - normalised direction vector
from the MicroFacet
to the light source.pdf
- Probability density function.
True
if the light is visible.public double sample(double u1, double v1, double u2, double v2, double[] pos, double[] dir, double[] power)
sample
in interface LightSource
u1
- Uniform random number.v1
- Uniform random number.u2
- Uniform random number.v2
- Uniform random number.pos
- Pre-allocated array which holds a point on the light source
(an origin of direction).dir
- Output direction in world coordinates. Pre-allocated array.power
- Power of given light source (if you wanna get power
of this photon, you have to divide this power by number
of photons). Pre-allocated array.
public double pdf(double[] point, double[] normal, double[] dir)
pdf
in interface LightSource
point
- Point on the surface.normal
- Normal at this point.dir
- Direction from the point.public boolean isDeltaLight()
isDeltaLight
in interface LightSource
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