Bundle that allows shapes to deal with texture coordinates more easily. More...
#include <Inventor/bundles/SoTextureCoordinateBundle.h>
Public Member Functions | |
| SoTextureCoordinateBundle (SoAction *action, bool forRendering, bool setUpDefault=TRUE) | |
| Constructor - takes the action the bundle is used for and a flag to indicate whether the bundle is being used for rendering. More... | |
| ~SoTextureCoordinateBundle () | |
| Destructor. More... | |
| bool | needCoordinates () const |
| Returns TRUE if texture coordinates are needed at all. More... | |
| bool | isFunction () const |
| return value to determine which get() to use. More... | |
| SbVec4f | get (const SbVec3f &point, const SbVec3f &normal) const |
| Returns texture coordinate computed by function during primitive generation or rendering. More... | |
| SbVec4f | get (int index) const |
| Returns indexed texture coordinate during primitive generation or rendering. More... | |
| void | send (int index) const |
| Sends indexed texture coordinate to GL during rendering. More... | |
Additional Inherited Members | |
 Protected Member Functions inherited from SoBundle | |
| SoBundle (SoAction *action) | |
| Constructor takes action from whose state bundle is to access elements. More... | |
| ~SoBundle () | |
| Destructor. More... | |
| Protected Attributes inherited from SoBundle | |
| SoState * | state |
| Stores state for any bundle. More... | |
Detailed Description
This class provides a fairly simple interface to texture coordinate handling, including default texture coordinate generation. This can be used during either rendering or primitive generation.
This class can be used during either rendering or primitive generation. For primitive generation, there are two cases, distinguished by the flag returned by isFunction(). If this flag is TRUE, the texture coordinates are to be generated using the get(point, normal) method, which uses a software texture coordinate function. (This process is also used for texture coordinates that are generated by default when necessary - in this case, the function does a linear map across two sides of the bounding box of the shape.) If the isFunction() flag is FALSE, the coordinates are accessed directly from the element using the get(index) method.
For GL rendering, there is an additional case. If needCoordinates() returns FALSE, no texture coordinates need to be sent at all, and the bundle does not have to be used for anything else. Otherwise, send(index) should be used.
Definition at line 91 of file SoTextureCoordinateBundle.h.
Constructor & Destructor Documentation
◆ SoTextureCoordinateBundle()
| SoTextureCoordinateBundle::SoTextureCoordinateBundle | ( | SoAction * | action, |
| bool | forRendering, | ||
| bool | setUpDefault = TRUE |
||
| ) |
If this is TRUE, the bundle can be used to send texture coordinates to GL. If it is FALSE, the setUpDefault flag (default TRUE) indicates whether to set up a texture coordinate function if the binding is DEFAULT. Shapes can pass FALSE here if they are picking and want to delay computation of the texture coordinates until an intersection is found.
◆ ~SoTextureCoordinateBundle()
| SoTextureCoordinateBundle::~SoTextureCoordinateBundle | ( | ) |
Member Function Documentation
◆ get() [1/2]
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inline |
Definition at line 116 of file SoTextureCoordinateBundle.h.
◆ get() [2/2]
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inline |
Definition at line 121 of file SoTextureCoordinateBundle.h.
◆ isFunction()
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inline |
Definition at line 112 of file SoTextureCoordinateBundle.h.
◆ needCoordinates()
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inline |
Definition at line 109 of file SoTextureCoordinateBundle.h.
◆ send()
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inline |
Definition at line 127 of file SoTextureCoordinateBundle.h.
The documentation for this class was generated from the following file:
- /home/jenkins/workspaces/mevislab/3.7.2_1/build/MeVis/ThirdParty/Sources/Inventor/include/Inventor/bundles/SoTextureCoordinateBundle.h
