Package org.sunflow.core.primitive

Class Hair

java.lang.Object
org.sunflow.core.primitive.Hair
All Implemented Interfaces:
PrimitiveList, RenderObject, Shader
public class Hair extends Object implements PrimitiveList, Shader

  • Constructor Details

    • Hair

      public Hair()

  • Method Details

    • getNumPrimitives

      public int getNumPrimitives()
      Description copied from interface: PrimitiveList
      Returns the number of individual primtives in this aggregate object.
      Specified by:
      getNumPrimitives in interface PrimitiveList
      Returns:
      number of primitives

    • getPrimitiveBound

      public float getPrimitiveBound(int primID, int i)
      Description copied from interface: PrimitiveList
      Retrieve the bounding box component of a particular primitive in object space. Even indexes get minimum values, while odd indexes get the maximum values for each axis.
      Specified by:
      getPrimitiveBound in interface PrimitiveList
      Parameters:
      primID - primitive index
      i - bounding box side index
      Returns:
      value of the request bound

    • getWorldBounds

      public BoundingBox getWorldBounds(Matrix4 o2w)
      Description copied from interface: PrimitiveList
      Compute a bounding box of this object in world space, using the specified object-to-world transformation matrix. The bounds should be as exact as possible, if they are difficult or expensive to compute exactly, you may use Matrix4.transform(BoundingBox). If the matrix is null no transformation is needed, and object space is equivalent to world space.
      Specified by:
      getWorldBounds in interface PrimitiveList
      Parameters:
      o2w - object to world transformation matrix
      Returns:
      object bounding box in world space

    • intersectPrimitive

      public void intersectPrimitive(Ray r, int primID, IntersectionState state)
      Description copied from interface: PrimitiveList
      Intersect the specified primitive in local space.
      Specified by:
      intersectPrimitive in interface PrimitiveList
      Parameters:
      r - ray in the object's local space
      primID - primitive index to intersect
      state - intersection state
      See Also:

    • prepareShadingState

      public void prepareShadingState(ShadingState state)
      Description copied from interface: PrimitiveList
      Prepare the specified ShadingState by setting all of its internal parameters.
      Specified by:
      prepareShadingState in interface PrimitiveList
      Parameters:
      state - shading state to fill in

    • 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

    • 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.

    • getBakingPrimitives

      public PrimitiveList getBakingPrimitives()
      Description copied from interface: PrimitiveList
      Create a new PrimitiveList object suitable for baking lightmaps. This means a set of primitives laid out in the unit square UV space. This method is optional, objects which do not support it should simply return null.
      Specified by:
      getBakingPrimitives in interface PrimitiveList
      Returns:
      a list of baking primitives

    • 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