Open Inventor Reference
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Texture mapping node. More...
#include <Inventor/nodes/SoTexture2.h>
Public Types | |
enum | Model { MODULATE = GL_MODULATE, DECAL = GL_DECAL, BLEND = GL_BLEND } |
Texture model. More... | |
enum | Wrap { REPEAT = GL_REPEAT, CLAMP = GL_CLAMP } |
Texture wrap type. More... | |
Public Member Functions | |
SoTexture2 () | |
Creates a texture node with default settings. | |
virtual void | doAction (SoAction *action) |
This method performs the "typical" operation of a node for any action. | |
virtual void | GLRender (SoGLRenderAction *action) |
These virtual functions implement all of the actions for nodes, Most of the default implementations do nothing. | |
virtual void | callback (SoCallbackAction *action) |
Static Public Member Functions | |
static void | initClass () |
Initializes base node class. | |
static SbBool | readImage (const SbString &fname, int &w, int &h, int &nc, unsigned char *&bytes) |
Read libimage-format file. | |
Public Attributes | |
SoSFString | filename |
Fields. | |
SoSFImage | image |
The texture. | |
SoSFEnum | wrapS |
SoSFEnum | wrapT |
SoSFEnum | model |
SoSFColor | blendColor |
Protected Member Functions | |
virtual SbBool | readInstance (SoInput *in, unsigned short flags) |
Reads stuff into instance. Returns FALSE on error. | |
virtual | ~SoTexture2 () |
int | getReadStatus () |
void | setReadStatus (int s) |
This property node defines a texture map and parameters for that map. This map is used to apply texture to subsequent shapes as they are rendered.
The texture can be read from the file specified by the filename field. Once the texture has been read, the image field contains the texture data. However, this field is marked so the image is not written out when the texture node is written to a file. To turn off texturing, set the filename field to an empty string ("").
Textures can also be specified in memory by setting the image field to contain the texture data. Doing so resets the filename to the empty string.
If the texture image's width or height is not a power of 2, or the image's width or height is greater than the maximum supported by OpenGL, then the image will be automatically scaled up or down to the next power of 2 or the maximum texture size. For maximum speed, point-sampling is used to do the scale; if you want more accurate resampling, pre-filter images to a power of 2 smaller than the maximum texture size (use the OpenGL glGetIntegerv(GL_MAX_TEXTURE_SIZE...) call to determine maximum texture for a specific OpenGL implementation).
The quality of the texturing is affected by the textureQuality field of the SoComplexity node. The textureQuality field affects what kind of filtering is done to the texture when it must be minified or magnified. The mapping of a particular texture quality value to a particular OpenGL filtering technique is implementation dependent, and varies based on the texturing performance. If mipmap filtering is required, mipmaps are automatically created using the simple box filter.
Definition at line 143 of file SoTexture2.h.
enum SoTexture2::Model |
Definition at line 149 of file SoTexture2.h.
enum SoTexture2::Wrap |
Definition at line 156 of file SoTexture2.h.
SoTexture2::SoTexture2 | ( | ) |
virtual SoTexture2::~SoTexture2 | ( | ) | [protected, virtual] |
virtual void SoTexture2::callback | ( | SoCallbackAction * | action | ) | [virtual] |
Reimplemented from SoNode.
virtual void SoTexture2::doAction | ( | SoAction * | action | ) | [virtual] |
The default implementation does nothing.
Reimplemented from SoNode.
int SoTexture2::getReadStatus | ( | ) | [inline, protected] |
Definition at line 190 of file SoTexture2.h.
virtual void SoTexture2::GLRender | ( | SoGLRenderAction * | action | ) | [virtual] |
Reimplemented from SoNode.
static void SoTexture2::initClass | ( | ) | [static] |
Reimplemented from SoNode.
static SbBool SoTexture2::readImage | ( | const SbString & | fname, |
int & | w, | ||
int & | h, | ||
int & | nc, | ||
unsigned char *& | bytes | ||
) | [static] |
Reimplemented from SoFieldContainer.
void SoTexture2::setReadStatus | ( | int | s | ) | [inline, protected] |
Definition at line 191 of file SoTexture2.h.
Definition at line 167 of file SoTexture2.h.
file to read texture from
Definition at line 162 of file SoTexture2.h.
Definition at line 163 of file SoTexture2.h.
Definition at line 166 of file SoTexture2.h.
Definition at line 164 of file SoTexture2.h.
Definition at line 165 of file SoTexture2.h.