SoTexture2(3IV)NAMESoTexture2 (SoTex2) - texture mapping node
INHERITS FROM
SoBase > SoFieldContainer > SoNode > SoTexture2SYNOPSIS
#include <Inventor_c/nodes/SoTexture2.h>
typedef SoTexture2 SoTex2
enum SoTexture2Model {
SO_TEX2_MODULATE The texture color is multiplied by the surface
color
SO_TEX2_DECAL The texture color replaces the surface color
SO_TEX2_BLEND Blends between the surface color and a specified
blend color
}
enum SoTexture2Wrap {
SO_TEX2_REPEAT Repeats texture outside 0-1 texture coordinate
range
SO_TEX2_CLAMP Clamps texture coordinates to lie within 0-1
range
}
Fields from class SoTexture2:
SoSFString filename
SoSFImage image
SoSFEnum wrapS
SoSFEnum wrapT
SoSFEnum model
SoSFColor blendColor
Functions from class SoTexture2:
SoTexture2 * SoTex2Create()
SoType SoTex2GetClassTypeId()
Functions from class SoNode:
void SoTex2SetOverride(SoTex2 *this, SbBool state)
SbBool SoTex2IsOverride(const SoTex2 *this)
SoNode * SoTex2Copy(const SoTex2 *this, SbBool copyConnections
= FALSE)
SbBool SoTex2AffectsState(const SoTex2 *this)
SoNode * SoTex2GetByName(const char *name)
int SoTex2GetByNameList(const char *name, SoNodeList
*list)
Functions from class SoFieldContainer:
Page 1SoTexture2(3IV)
void SoTex2SetToDflts(SoTex2 *this)
SbBool SoTex2HasDfltVals(const SoTex2 *this)
SbBool SoTex2FldsAreEq(const SoTex2 *this, const
SoFieldContainer *fc)
void SoTex2CopyFieldVals(SoTex2 *this, const
SoFieldContainer *fc, SbBool copyConnections =
FALSE)
SbBool SoTex2Set(SoTex2 *this, const char *fieldDataString)
void SoTex2Get(SoTex2 *this, SbString *fieldDataString)
int SoTex2GetFields(const SoTex2 *this, SoFieldList
*resultList)
SoField * SoTex2GetField(const SoTex2 *this, const char
*fieldName)
SbBool SoTex2GetFieldName(const SoTex2 *this, const SoField
*field, SbName *fieldName)
SbBool SoTex2IsNotifyEnabled(const SoTex2 *this)
SbBool SoTex2EnableNotify(SoTex2 *this, SbBool flag)
Functions from class SoBase:
void SoTex2Ref(SoTex2 *this)
void SoTex2Unref(const SoTex2 *this)
void SoTex2UnrefNoDelete(const SoTex2 *this)
void SoTex2Touch(SoTex2 *this)
SoType SoTex2GetTypeId(const SoTex2 *this)
SbBool SoTex2IsOfType(const SoTex2 *this, SoType type)
void SoTex2SetName(SoTex2 *this, const char *name)
SbName SoTex2GetName(const SoTex2 *this)
DESCRIPTION
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
Page 2SoTexture2(3IV)
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.
FIELDS
SoSFString filename
Names file from which to read texture image. Currently only SGI .rgb
files are supported. If the filename is not an absolute path name,
the list of directories maintained by SoInput is searched. If the
texture is not found in any of those directories, then the file is
searched for relative to the directory from which the SoTexture2
node was read. For example, if an SoTexture2 node with a filename of
"../tofu.rgb" is read from /usr/people/bob/models/food.iv, then
/usr/people/bob/tofu.rgb will be read (assuming tofu.rgb isn't found
in the directories maintained by SoInput).
SoSFImage image
Contains an in-memory representation of the texture map. It is
either the contents of the file read from filename, an image read
directly from an Inventor file, or an image set programmatically
using the methods provided by SoSFImage.
SoSFEnum wrapS
SoSFEnum wrapT
Indicates what to do when texture coordinates in the S (horizontal)
or T (vertical) direction lie outside the range 0-1.
SoSFEnum model
Specifies how to map texture onto surface.
SoSFColor blendColor
Color used for BLEND model.
FUNCTIONSSoTexture2 * SoTex2Create()
Creates a texture node with default settings.
SoType SoTex2GetClassTypeId()
Returns type identifier for this class.
ACTION BEHAVIOR
SoGLRenderAction, SoCallbackAction
Sets current texture in state.
Page 3SoTexture2(3IV)FILE FORMAT/DEFAULTS
Texture2 {
filename ""
image 0 0 0
wrapS REPEAT
wrapT REPEAT
model MODULATE
blendColor 0 0 0
}
SEE ALSO
SoComplexity, SoMaterial, SoTexture2Transform, SoTextureCoordinate2,
SoTextureCoordinateBinding, SoTextureCoordinateFunction
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