slr::SlrPrimInfo Class Reference

Public Member Functions
int32_t	nFaces () const
	For MeshPrim types. If -1 the faces count has not been determined yet!
int32_t	nPoints () const
	For PointsPrim, PointInstancer types. If -1 the point count has not been determined yet!

Public Attributes
uint32_t	object_index
	Index of this object in the SlrPrimInfoList in SlrRenderContext.
usg::StageRef	stage
	Stage containing Prim.
const usg::Path *	prim_path
	Prim path in Stage (stored in Render prim_path_cache)
SlrPrimTypeHint	prim_type_hint
	To drive render primitive conversion.
SlrSurfaceMaterial *	material
	Render material (stored in SlrRenderContext)
bool	visible_to_camera
	Should the object be visible to camera?
bool	casts_shadow
	Does the object cast a shadow?
bool	receives_shadow
	Does the object get shadowed by lights?
bool	enabled
	Object is 'on' for this scene.
fdk::TimeValue	motion_time
	Time of this prim's xform & bbox sampling (scene motion time)
fdk::TimeValue	topology_time
	Time of this prim's topology sampling (usually shutter open or close)
fdk::Box3f	bbox
	Local-space bbox.
fdk::Mat4dList	transforms
	Double-precision scene-transform matrices.
int32_t	num_sub_indices
	To match motionblur-able topology. ie nFaces for MeshPrim, nPoints for PointsPrim.

Friends
std::ostream &	operator<< (std::ostream &, const SlrPrimInfo &)

Detailed Description

Replacement for legacy GeoInfo structure used in the legacy DD::Image::Render-based architecture like ScanlineRender, DepthMapRender, etc.

This structure represents a single usg::Prim at a single time sample. The Prim's attributes are not copied to time-sampled local arrays, that is left to the render primitive adapters at render time. However the Prim's concatenated scene transform is time sampled and stored in the 'transforms' - note that all matrices are now double-precision.

The previous GeoInfo often contained an internal list of 'atomic' Primitives such as triangles, points and polygons, but these are deprecated in favor of the SlrPrimInfo representing a single 'compound', or complex primitive such as a MeshPrim or PointsPrim, so there's no longer a reason for SlrPrimInfo to contain anything besides what's needed for the renderer to sample the usg::Prim and convert it to its internal render primitives, which is usually triangles.