Panda3D
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This is an abstract base class that holds a pointer to some transform, computed in some arbitrary way, that is to be applied to vertices during rendering. More...
#include <pandadoc.hpp>
Public Member Functions | |
accumulateMatrix (LMatrix4 accum, float weight) | |
Adds the value of this transform's matrix, modified by the indicated weight, into the indicated accumulation matrix. More... | |
getMatrix (LMatrix4 matrix) | |
UpdateSeq | getModified (Thread current_thread) |
Returns a sequence number that's guaranteed to change at least every time the value reported by get_matrix() changes. More... | |
multMatrix (LMatrix4 result, const LMatrix4 previous) | |
Premultiplies this transform's matrix with the indicated previous matrix, so that the result is the net composition of the given transform with this transform. More... | |
output (Ostream out) | |
write (Ostream out, int indent_level) | |
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object | __reduce__ () |
object | __reduce_persist__ (object pickler) |
VectorUchar | encodeToBamStream () |
Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a bytes object. More... | |
bool | encodeToBamStream (VectorUchar data, BamWriter writer) |
Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string. More... | |
fillin (DatagramIterator scan, BamReader manager) | |
This internal function is intended to be called by each class's make_from_bam() method to read in all of the relevant data from the BamFile for the new object. More... | |
UpdateSeq | getBamModified () |
Returns the current bam_modified counter. More... | |
markBamModified () | |
Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams. More... | |
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TypeHandle | getType () |
int | getTypeIndex () |
Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More... | |
bool | isExactType (TypeHandle handle) |
Returns true if the current object is the indicated type exactly. More... | |
bool | isOfType (TypeHandle handle) |
Returns true if the current object is or derives from the indicated type. More... | |
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int | getRefCount () |
Returns the current reference count. More... | |
ref () | |
Explicitly increments the reference count. More... | |
bool | testRefCountIntegrity () |
Does some easy checks to make sure that the reference count isn't completely bogus. More... | |
bool | testRefCountNonzero () |
Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More... | |
bool | unref () |
Explicitly decrements the reference count. More... | |
Static Public Member Functions | |
static TypeHandle | getClassType () |
static UpdateSeq | getGlobalModified (Thread current_thread) |
Returns the currently highest VertexTransform::get_modified() value in the world. More... | |
static UpdateSeq | getNextModified (Thread current_thread) |
Returns a monotonically increasing sequence. More... | |
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static TypedWritableReferenceCount | decodeFromBamStream (VectorUchar data, BamReader reader) |
Reads the bytes created by a previous call to encode_to_bam_stream(), and extracts and returns the single object on those bytes. More... | |
static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
Public Attributes | |
UpdateSeq | modified |
Returns a sequence number that's guaranteed to change at least every time the value reported by get_matrix() changes. More... | |
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TypeHandle | type |
Returns the TypeHandle representing this object's type. More... | |
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int | ref_count |
The current reference count. More... | |
This is an abstract base class that holds a pointer to some transform, computed in some arbitrary way, that is to be applied to vertices during rendering.
This is used to implement soft-skinned and animated vertices. Derived classes will define how the transform is actually computed.
accumulateMatrix | ( | LMatrix4 | accum, |
float | weight | ||
) |
Adds the value of this transform's matrix, modified by the indicated weight, into the indicated accumulation matrix.
This is used to compute the result of several blended transforms.
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static |
Returns the currently highest VertexTransform::get_modified() value in the world.
This can be used as a quick way to determine if any VertexTransforms have changed value recently.
getMatrix | ( | LMatrix4 | matrix | ) |
Returns a sequence number that's guaranteed to change at least every time the value reported by get_matrix() changes.
Returns a monotonically increasing sequence.
Each time this is called, a new sequence number is returned, higher than the previous value.
This is used to ensure that all VertexTransform::get_modified() calls return an increasing number in the same space, so that TransformBlend::get_modified() is easy to determine. It is similar to Geom::get_modified(), but it is in a different space.
Premultiplies this transform's matrix with the indicated previous matrix, so that the result is the net composition of the given transform with this transform.
The result is stored in the parameter "result", which should not be the same matrix as previous.
output | ( | Ostream | out | ) |
write | ( | Ostream | out, |
int | indent_level | ||
) |
UpdateSeq modified |
Returns a sequence number that's guaranteed to change at least every time the value reported by get_matrix() changes.