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public interface PrimitiveList
This class represents an object made up of many primitives.
Method Summary | |
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PrimitiveList |
getBakingPrimitives()
Create a new PrimitiveList object suitable for baking lightmaps. |
int |
getNumPrimitives()
Returns the number of individual primtives in this aggregate object. |
float |
getPrimitiveBound(int primID,
int i)
Retrieve the bounding box component of a particular primitive in object space. |
BoundingBox |
getWorldBounds(Matrix4 o2w)
Compute a bounding box of this object in world space, using the specified object-to-world transformation matrix. |
void |
intersectPrimitive(Ray r,
int primID,
IntersectionState state)
Intersect the specified primitive in local space. |
void |
prepareShadingState(ShadingState state)
Prepare the specified ShadingState by setting all of its internal
parameters. |
Methods inherited from interface org.sunflow.core.RenderObject |
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update |
Method Detail |
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BoundingBox getWorldBounds(Matrix4 o2w)
Matrix4.transform(BoundingBox)
. If the matrix is
null
no transformation is needed, and object space is
equivalent to world space.
o2w
- object to world transformation matrix
int getNumPrimitives()
float getPrimitiveBound(int primID, int i)
primID
- primitive indexi
- bounding box side index
void intersectPrimitive(Ray r, int primID, IntersectionState state)
r
- ray in the object's local spaceprimID
- primitive index to intersectstate
- intersection stateRay.setMax(float)
,
IntersectionState.setIntersection(int, float, float)
void prepareShadingState(ShadingState state)
ShadingState
by setting all of its internal
parameters.
state
- shading state to fill inPrimitiveList getBakingPrimitives()
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
.
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