# InternalName¶

from panda3d.core import InternalName

class InternalName

Encodes a string name in a hash table, mapping it to a pointer. This is used to tokenify names so they may be used efficiently in low-level Panda structures, for instance to differentiate the multiple sets of texture coordinates that might be stored on a Geom.

InternalNames are hierarchical, with the ‘.’ used by convention as a separator character. You can construct a single InternalName as a composition of one or more other names, or by giving it a source string directly.

Inheritance diagram

append(basename: str)InternalName

Constructs a new InternalName based on this name, with the indicated string following it. This is a cheaper way to construct a hierarchical name than InternalName::make(parent->get_name() + “.basename”).

property basename → string

Return the name represented by just this particular InternalName object, ignoring its parents names. This is everything after the rightmost dot.

findAncestor(basename: str)int

Returns the index of the ancestor with the indicated basename, or -1 if no ancestor has that basename. Returns 0 if this name has the basename.

This index value may be passed to getAncestor() or getNetBasename() to retrieve more information about the indicated name.

getAncestor(n: int)InternalName

Returns the ancestor with the indicated index number. 0 is this name itself, 1 is the name’s parent, 2 is the parent’s parent, and so on. If there are not enough ancestors, returns the root InternalName.

static getAspectRatio()InternalName

Returns the standard InternalName “aspect_ratio”. This is the column header for the floating-point aspect ratio value, which is used to define non- square points. This number is the ratio x / y, where y is the point size (above).

getBasename()str

Return the name represented by just this particular InternalName object, ignoring its parents names. This is everything after the rightmost dot.

static getBinormal()InternalName

Returns the standard InternalName “binormal”. This is the column header for the tangent vector associated with each vertex, which is a unit vector usually perpendicular to both the normal and the tangent, and in the direction of the V texture coordinate change. It is used for deriving bump maps.

static getBinormalName(name: str)InternalName

Returns the InternalName “binormal.name”, where name is the supplied string. This is the column header for the binormal associated with the named texture coordinate set.

static getCamera()InternalName

Returns the standard InternalName “camera”. This is used as a keyword in the shader subsystem.

static getClassType()TypeHandle
static getColor()InternalName

Returns the standard InternalName “color”. This is the column header for the 4-component color value for each vertex.

static getError()InternalName

Returns the standard InternalName “error”.

static getIndex()InternalName

Returns the standard InternalName “index”. This is the column header for the integer vertex index. It is not used in the vertex data itself, but is used in the GeomPrimitive structure to index into the vertex data.

static getModel()InternalName

Returns the standard InternalName “model”. This is used as a keyword in the shader subsystem.

static getMorph(column: InternalName, slider: str)InternalName

Returns an InternalName derived from the given base column name and the given slider name, which is the column header for the offset vector that should be applied to the base column name when the named morph slider is engaged.

Each morph slider requires a set of n morph columns, one for each base column it applies to.

getName()str

Returns the complete name represented by the InternalName and all of its parents.

getNetBasename(n: int)str

Returns the basename of this name prefixed by the indicated number of ancestors. 0 is this name’s basename, 1 is parent.basename, 2 is grandparent.parent.basename, and so on.

static getNormal()InternalName

Returns the standard InternalName “normal”. This is the column header for the 3-d lighting normal for each vertex.

getParent()InternalName

Return the parent of this InternalName. All names have a parent, except the root name.

static getRoot()InternalName

Returns the standard root InternalName. This is the root of all other InternalNames. It has no name itself, and it is the only InternalName with no parent.

static getRotate()InternalName

Returns the standard InternalName “rotate”. This is the column header for the floating-point rotate value, which represents a number of degrees counter-clockwise to rotate each point or point sprite.

static getSize()InternalName

Returns the standard InternalName “size”. This is the column header for the floating-point size value, which overrides the thickness parameter of the RenderModeAttrib on a per-vertex (e.g. per-point) basis.

static getTangent()InternalName

Returns the standard InternalName “tangent”. This is the column header for the tangent vector associated with each vertex, which is a unit vector usually perpendicular to the normal and in the direction of the U texture coordinate change. It is used for deriving bump maps.

static getTangentName(name: str)InternalName

Returns the InternalName “tangent.name”, where name is the supplied string. This is the column header for the tangent associated with the named texture coordinate set.

static getTexcoord()InternalName

Returns the standard InternalName “texcoord”. This is the column header for the default texture coordinate set for each vertex. It is also used for identifying the default texture coordinate set in a TextureStage.

static getTexcoordName(name: str)InternalName

Returns the InternalName “texcoord.name”, where name is the supplied string. This is the column header for the named texture coordinate set for each vertex. It is also used for identifying the named texture coordinate set in a TextureStage.

getTop()InternalName

Returns the oldest ancestor in the InternalName’s chain, not counting the root. This will be the first name in the string, e.g. “texcoord.foo.bar” will return the InternalName “texcoord”.

static getTransformBlend()InternalName

Returns the standard InternalName “transform_blend”. This is the column header for the integer transform_blend index, which is used to define vertex animation on the CPU by indexing to a particular vertex weighting from the TransformBlendTable.

static getTransformIndex()InternalName

Returns the standard InternalName “transform_index”. This is the column header for the n-component transform_index value, which is used in conjuntion with “transform_weight” to define vertex animation on the graphics card. The transform_index value specifies the nth transform, by lookup in the TransformTable. The transform_index column may be omitted, in which case the nth transform is the nth entry in the table.

static getTransformWeight()InternalName

Returns the standard InternalName “transform_weight”. This is the column header for the n-component transform_weight value, which is used in conjuntion with “transform_index” to define vertex animation on the graphics card. The transform_weight value specifies the weight of the nth transform. By convention, there are 1 fewer weight values than transforms, since the weights are assumed to sum to 1 (and the last value is therefore implicit).

static getVertex()InternalName

Returns the standard InternalName “vertex”. This is the column header for the 3-d or 4-d vertex position information for each vertex.

static getView()InternalName

Returns the standard InternalName “view”. This is used as a keyword in the shader subsystem.

static getWorld()InternalName

Returns the standard InternalName “world”. This is used as a keyword in the shader subsystem.

join(sep: str)str

Like getName(), but uses a custom separator instead of “.”.

static make(str: object)InternalName

These versions are exposed to Python, which have additional logic to map from Python interned strings.

static make(name: str, index: int)InternalName

Make using a string and an integer. Concatenates the two.

property name → string

Returns the complete name represented by the InternalName and all of its parents.

output(out: ostream)None
property parentInternalName

Return the parent of this InternalName. All names have a parent, except the root name.