PhongShader

java.lang.Object
- org.sunflow.core.shader.PhongShader

All Implemented Interfaces:

RenderObject, Shader

Direct Known Subclasses:

TexturedPhongShader
```
public class PhongShader
extends java.lang.Object
implements Shader
```

Constructor Summary

Constructors
Constructor and Description

PhongShader()

Constructors
Constructor and Description
`PhongShader()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected Color`	`getDiffuse(ShadingState state)`
`Color`	`getOpacity(ShadingState state)` Returns how much light is blocked by this shader.
`Color`	`getRadiance(ShadingState state)` Gets the radiance for a specified rendering state.
`boolean`	`isOpaque()` Returns `true` if this shader is fully opaque.
`void`	`scatterPhoton(ShadingState state, Color power)` Scatter a photon with the specied power.
`boolean`	`update(ParameterList pl, SunflowAPI api)` Update this object given a list of parameters.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - PhongShader
```
public PhongShader()
```
- Method Detail
  - 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 interface RenderObject
    
    Parameters:
    
    pl - list of parameters to read from
    
    api - reference to the current scene
    
    Returns:
    
    true if the update is succesfull, false otherwise
  - getDiffuse
```
protected Color getDiffuse(ShadingState state)
```
  - getRadiance
```
public Color getRadiance(ShadingState state)
```
    Description copied from interface: Shader
    
    Gets the radiance for a specified rendering state. When this method is called, you can assume that a hit has been registered in the state and that the hit surface information has been computed.
    
    Specified by:
    
    getRadiance in interface Shader
    
    Parameters:
    
    state - current render state
    
    Returns:
    
    color emitted or reflected by the shader
  - scatterPhoton
```
public void scatterPhoton(ShadingState state,
                          Color power)
```
    Description copied from interface: Shader
    
    Scatter a photon with the specied power. Incoming photon direction is specified by the ray attached to the current render state. This method can safely do nothing if photon scattering is not supported or relevant for the shader type.
    
    Specified by:
    
    scatterPhoton in interface Shader
    
    Parameters:
    
    state - current state
    
    power - power of the incoming photon.
  - isOpaque
```
public boolean isOpaque()
```
    Description copied from interface: Shader
    
    Returns true if this shader is fully opaque. This gives a quick way to find out if a shader needs further processing when hit by a shadow ray.
    
    Specified by:
    
    isOpaque in interface Shader
  - getOpacity
```
public Color getOpacity(ShadingState state)
```
    Description copied from interface: Shader
    
    Returns how much light is blocked by this shader.
    
    Specified by:
    
    getOpacity in interface Shader

Class PhongShader

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

PhongShader

Method Detail

update

getDiffuse

getRadiance

scatterPhoton

isOpaque

getOpacity