Class TAbstractComposedGeometryNode

This item has no description. Showing description inherited from TX3DNode.DirectEnumerateActive.

Enumerate all active child nodes of given node.

"Active nodes" are the ones affecting current look or collisions, e.g. from Switch node only one child will be enumerated. See Traverse for more precise definition.

"Direct" means that this enumerates only direct descendants, i.e. this is not recursive. See methods like Traverse or EnumerateNodes if you want recursive behavior.

This can enumerate both VRML1Children nodes and nodes within TSFNode and TMFNode fields.

Default implementation in this class enumerates all Children nodes of VRML 1.0. If you need to remove some children for VRML 1.0 (e.g. for Switch or LOD nodes) or add some children for VRML 2.0 you have to override this. You do not need to call inherited when overriding this — in fact, you should not, if you want to omit some nodes.

Stops and returns immediately if Func returns non-nil for some child.

Access the coordinate node, and inside this node access it's points list.

This item has no description. Showing description inherited from TAbstractGeometryNode.CoordField.

Node's "coord" field where you can place TCoordinateNode, or Nil if not available.

This gives you more possibilities than the InternalCoord and InternalCoordinates methods (as you can assign texCoord using this). However, it doesn't work for old VRML 1.0 (since they have coordinate information, but no "coord" field).

This item has no description. Showing description inherited from TAbstractGeometryNode.SkinWeightsJoints.

Weights and joints for the skinned animation.

If skinned animation is possible on this node, returns True and sets Weights and Joints to the appropriate lists:

• Weights: 4D vector for each vertex, with 4 weight for the 4 most important joints that affect this vertex.

• Joints: 4 indexes for each vertex, determine the 4 most important joints that affect this vertex.

Read or modify them freely. Keep the counts correct:

• Either both lists are empty.

• Or include information about all the coordinates in CoordField. This means that

  - Weights.Count equals the coordinate count,

  - and Joints.Count is always divisible by 4,

  - and Joints.Count / 4 equals the coordinate count.

If skinned animation is not possible on this node, returns False, and Weights and Joints are set to Nil.

This item has no description. Showing description inherited from TAbstractGeometryNode.TexCoordField.

Node's texCoord field, or Nil if not available. Various nodes may have different exact rules about what is allowed here, but everything allows TextureCoordinateGenerator and ProjectedTextureCoordinate instances.

This gives you more possibilities than the InternalTexCoord method (as you can assign texCoord using this), however it may be not available in all cases — for example VRML 1.0 nodes do not have texCoord field, but they may have a texture coordinate node (from the state).

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This item has no description. Showing description inherited from TAbstractGeometryNode.SolidField.

Is backface culling used. Nil if given geometry node doesn't have a field to control it.

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This item has no description. Showing description inherited from TAbstractGeometryNode.NormalField.

Node's "normal" field where you can place TNormalNode, or Nil if not available.

This item has no description. Showing description inherited from TAbstractGeometryNode.TangentField.

Node's "tangent" field where you can place TTangentNode, or Nil if not available.

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Create node fields and events.

This item has no description. Showing description inherited from TX3DNode.ClassX3DType.

Node type name in VRML/X3D, for this class. Normal VRML/X3D node classes should override this to return something non-empty, and then X3DType automatically will return the same value.

Empty for classes that don't have a hardcoded VRML/X3D node name, like a special TX3DUnknownNode. Such special classes should override then X3DType to return actual non-empty name there.

You usually should call X3DType. The only use of this method is that it works on classes (it's "class function"), without needing at actual instance.

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Weights for the skinned animation.

If non-empty, the count of this array should be:

• Equal to the count of coordinates in Coord,

• Equal to FdSkinJoints0 count divided by 4.

For each vertex, this array specifies a 4D vector, which determines the 4 weights for the "most important" joints that affect this vertex. The "most important" joints are determined by the FdSkinJoints0.

This corresponds to the WEIGHTS_0 attribute in glTF.

It is possible we will introduce in the future FdSkinWeights1, FdSkinJoints1 and more, to allow vertexes to be influenced by more than 4 joints at the same time. For now, in practice, 4 joints for each vertex is enough.

Weights for the skinned animation.

If non-empty, the count of this array should be:

• Equal to the count of coordinates in Coord,

• Equal to FdSkinJoints0 count divided by 4.

For each vertex, this array specifies a 4D vector, which determines the 4 weights for the "most important" joints that affect this vertex. The "most important" joints are determined by the FdSkinJoints0.

This corresponds to the WEIGHTS_0 attribute in glTF.

It is possible we will introduce in the future FdSkinWeights1, FdSkinJoints1 and more, to allow vertexes to be influenced by more than 4 joints at the same time. For now, in practice, 4 joints for each vertex is enough.

Joints for the skinned animation.

Note: In the perfect world, we'd like to express this as an array of 4D integer vectors, like TVector4IntegerList in Castle Game Engine, or "VEC4 of unsigned byte or unsigned short" in glTF. However, X3D doesn't have a field type that allows to express this in natural way. So we express this using TMFInt32, with a constraint that each 4 consecutive values form a 4D vector.

The count of this array must be divisible by 4.

If not empty, the count of this array divided by 4 should be:

• Equal to the count of coordinates in Coord,

• Equal to FdSkinWeights0 count.

For each vertex, this array specifies indexes of the 4 "most important" joints that affect this vertex. The weights for these joints are specified by FdSkinWeights0. If you have less than 4 "most important" joints, just specify any (but valid) joint index and give it a zero weight using FdSkinWeights0.

Joints for the skinned animation.

Note: In the perfect world, we'd like to express this as an array of 4D integer vectors, like TVector4IntegerList in Castle Game Engine, or "VEC4 of unsigned byte or unsigned short" in glTF. However, X3D doesn't have a field type that allows to express this in natural way. So we express this using TMFInt32, with a constraint that each 4 consecutive values form a 4D vector.

The count of this array must be divisible by 4.

If not empty, the count of this array divided by 4 should be:

• Equal to the count of coordinates in Coord,

• Equal to FdSkinWeights0 count.

For each vertex, this array specifies indexes of the 4 "most important" joints that affect this vertex. The weights for these joints are specified by FdSkinWeights0. If you have less than 4 "most important" joints, just specify any (but valid) joint index and give it a zero weight using FdSkinWeights0.

Internal wrapper for property Attrib. This wrapper API may change, we advise to access simpler Attrib instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

Internal wrapper for property Color. This wrapper API may change, we advise to access simpler Color instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

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Internal wrapper for property Coord. This wrapper API may change, we advise to access simpler Coord instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

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Internal wrapper for property FogCoord. This wrapper API may change, we advise to access simpler FogCoord instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

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Internal wrapper for property Normal. This wrapper API may change, we advise to access simpler Normal instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

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Internal wrapper for property Tangent. This wrapper API may change, we advise to access simpler Tangent instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

Tangent vectors determine the tangent coordinate-space, used by the bump mapping algorithms.

If the materials applied on this geometry may use normal maps (by providing TAbstractOneSidedMaterialNode.NormalTexture), we recommend to provide tangent vectors calculated in the same manner as the software you used to bake the normal maps. If you don't provide tangent vectors, we will automatically calculate them.

If specified, the ordering of tangents should be the same as normals, e.g. they should follow the NormalPerVertex property.

The XYZ component of each tangent vector should be a normalized tangent direction.

The W component is a sign value (-1 or +1) indicating handedness of the tangent basis. See the X3D 4.1 and glTF specifications for details.

Internal wrapper for property TexCoord. This wrapper API may change, we advise to access simpler TexCoord instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

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Internal wrapper for property Ccw. This wrapper API may change, we advise to access simpler Ccw instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

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Internal wrapper for property ColorPerVertex. This wrapper API may change, we advise to access simpler ColorPerVertex instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

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Internal wrapper for property NormalPerVertex. This wrapper API may change, we advise to access simpler NormalPerVertex instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

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Internal wrapper for property Solid. This wrapper API may change, we advise to access simpler Solid instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

Internal wrapper for property RadianceTransfer. This wrapper API may change, we advise to access simpler RadianceTransfer instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

Internal wrapper for property SkinWeights0. This wrapper API may change, we advise to access simpler SkinWeights0 instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).

Internal wrapper for property SkinJoints0. This wrapper API may change, we advise to access simpler SkinJoints0 instead, if it is defined (TODO: for now, some field types do not have a simpler counterpart).