| SoTextureUnit Class |
Node that specifies the current texture unit and the associated mapping method.
Inheritance HierarchyOIV.InventorSoNetBase
OIV.InventorSoDisposable
OIV.Inventor.MiscSoBase
OIV.Inventor.FieldsSoFieldContainer
OIV.Inventor.NodesSoNode
OIV.Inventor.NodesSoTextureUnit
Namespace: OIV.Inventor.Nodes
Assembly: OIV.Inventor (in OIV.Inventor.dll) Version: 2024.2.2.0 (10.16.2.0)
SyntaxThe SoTextureUnit type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | SoTextureUnit | Constructor. |
Methods| Name | Description | |
|---|---|---|
| AffectsState | Returns true if a node has an effect on the state during traversal. |
| Callback | (Overrides SoNodeCallback(SoCallbackAction).) |
| Copy | Calls Copy(false). (Inherited from SoNode.) |
| Copy(Boolean) | Creates and returns an exact copy of the node. |
| CopyFieldValues(SoFieldContainer) | Calls CopyFieldValues(fc, false). (Inherited from SoFieldContainer.) |
| CopyFieldValues(SoFieldContainer, Boolean) | Copies the contents of fc's fields into this object's fields. |
| Dispose |
Releases all resources used by SoDisposable.
(Inherited from SoDisposable.) |
| Distribute | (Inherited from SoNode.) |
| DoAction | (Overrides SoNodeDoAction(SoAction).) |
| EnableNotify | Notification at this Field Container is enabled (if flag == true) or disabled (if flag == false). |
| Equals | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
| FieldsAreEqual | Returns true if this object's fields are exactly equal to fc's fields. |
| Get | Returns the values of the fields of this object in the Open Inventor ASCII file format in the given string. |
| GetAllFields | Returns a list of fields, including the eventIn's and eventOut's. |
| GetAlternateRep | This method is called by actions to allow the node to provide an "alternate representation" when appropriate (typically depending on the action type). |
| GetBoundingBox | (Inherited from SoNode.) |
| GetEventIn | Returns a the eventIn with the given name. |
| GetEventOut | Returns the eventOut with the given name. |
| GetField | Returns a the field of this object whose name is fieldName. |
| GetFieldName | Returns the name of the given field in the fieldName argument. |
| GetFields | Appends references to all of this object's fields to resultList, and returns the number of fields appended. |
| GetHashCode |
Overrides GetHashCode().
(Inherited from SoNetBase.) |
| GetMatrix | (Inherited from SoNode.) |
 | GetMaxTextureUnit | Calls GetMaxTextureUnit((OIV.Inventor.Misc.SoState ^)nullptr). |
| GetMaxTextureUnit(SoState) | Returns the maximum number of texture units. |
| GetName | Returns the name of an instance. |
| GetPrimitiveCount | (Inherited from SoNode.) |
| GetRenderEngineMode | Returns the supported Render engine mode. |
| GetRenderUnitID | (Inherited from SoNode.) |
| GetStringName | (Inherited from SoBase.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| GLRender | (Overrides SoNodeGLRender(SoGLRenderAction).) |
| GLRenderBelowPath | (Inherited from SoNode.) |
| GLRenderInPath | (Inherited from SoNode.) |
| GLRenderOffPath | (Inherited from SoNode.) |
| GrabEventsCleanup | (Inherited from SoNode.) |
| GrabEventsSetup | (Inherited from SoNode.) |
| HandleEvent | (Inherited from SoNode.) |
| HasDefaultValues | Returns true if all of the object's fields have their default values. |
| IsBoundingBoxIgnoring | This method is used by getBoundingBox action traversal to know if the current node must be traversed or not, ie the bounding should be ignored. |
| IsNotifyEnabled | Notification is the process of telling interested objects that this object has changed. |
| IsOverride | Returns the state of the override flag. |
| IsSynchronizable | Gets the ScaleViz synchronizable state of this object. |
| Pick | (Inherited from SoNode.) |
| RayPick | (Inherited from SoNode.) |
| Search | (Inherited from SoNode.) |
| Set | Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format. |
| SetName | (Inherited from SoBase.) |
| SetOverride | Turns the override flag on or off. |
| SetSynchronizable | Sets this to be a ScaleViz synchronizable object. |
| SetToDefaults | Sets all fields in this object to their default values. |
| ToString |
Converts this SoBase structure to a human readable string.
(Inherited from SoBase.) |
| Touch | Marks an instance as modified, simulating a change to it. |
| Write | (Inherited from SoNode.) |
Properties| Name | Description | |
|---|---|---|
 | IsDisposable | ISafeDisposable interface implementation.
(Inherited from SoDisposable.) |
| unit | Specifies the texture unit identifier. |
| UserData |
Gets or sets the user data to be contained by the field container.
(Inherited from SoFieldContainer.) |
RemarksThis node specifies the current texture unit for all subsequent 2D and 3D texture nodes (for example, OIV.Inventor.Nodes.SoTexture2, OIV.Inventor.Nodes.SoTexture2Transform, OIV.Inventor.Nodes.SoTextureCoordinate2, OIV.Inventor.Nodes.SoTextureCoordinateBinding, and OIV.Inventor.Nodes.SoTextureCoordinateFunction).
If the graphics board supports multitexturing (OpenGL 1.5 or GL_ARB_multitexture extension), then multiple textures, each defined by a texture unit, can be applied to the same shape. The maximum number of texture units depends on the board and can be queried using OIV.Inventor.Nodes.SoTextureUnit.GetMaxTextureUnit(OIV.Inventor.Misc.SoState).
Multitexturing is supported by the following shapes:
Each texture unit is defined by the following texture properties:
image of the texture (derived from OIV.Inventor.Nodes.SoTexture)
texture coordinates (OIV.Inventor.Nodes.SoTextureCoordinate2, OIV.Inventor.Nodes.SoTextureCoordinate3, OIV.Inventor.Nodes.SoTextureCoordinateBinding, etc.)
automatic texture coordinates generation (derived from OIV.Inventor.Nodes.SoTextureCoordinateFunction)
stack of matrix transforms (OIV.Inventor.Nodes.SoTexture2Transform, OIV.Inventor.Nodes.SoTexture3Transform, OIV.Inventor.Nodes.SoMatrixTransform, etc.)
mapping method: image mapping or bump mapping.
Limitations:
Multitexturing is not supported for non convex shapes (OIV.Inventor.Nodes.SoShapeHints.FaceTypes.UNKNOWN_FACE_TYPE).
Automatic texture coordinate generation (OIV.Inventor.Nodes.SoTextureCoordinateFunction) is not possible for the bump mapping method.
When not using shaders, only units 0 to 3 can be used.
When using shaders, texture unit properties (listed above) can be defined for units 0 to 7. When shaders are used, it is also possible to use OIV.Inventor.Nodes.SoVertexShaderParameter to specify texture coordinates to be used by the shader(s). OIV.Inventor.Nodes.SoVertexShaderParameter parameter sets are limited to 32 on OpenGL3 hardware.
FILE FORMAT/DEFAULT
TextureUnit {
| unit | 0 |
ACTION BEHAVIOR
OIV.Inventor.Actions.SoGLRenderAction, OIV.Inventor.Actions.SoCallbackAction Sets the current texture unit and the associated mapping method. Sets: OIV.Inventor.Elements.SoTextureUnitElement
See Also