IdentifiantMot de passe
Mot de passe oublié ?Je m'inscris ! (gratuit)
Page OpenGL 2.X --- Revenir au moteur de recherche

Name

glMultiTexCoord — set the current texture coordinates

C Specification

void glMultiTexCoord1s(GLenum  target,
 GLshort  s);
void glMultiTexCoord1i(GLenum  target,
 GLint  s);
void glMultiTexCoord1f(GLenum  target,
 GLfloat  s);
void glMultiTexCoord1d(GLenum  target,
 GLdouble  s);
void glMultiTexCoord2s(GLenum  target,
 GLshort  s,
 GLshort  t);
void glMultiTexCoord2i(GLenum  target,
 GLint  s,
 GLint  t);
void glMultiTexCoord2f(GLenum  target,
 GLfloat  s,
 GLfloat  t);
void glMultiTexCoord2d(GLenum  target,
 GLdouble  s,
 GLdouble  t);
void glMultiTexCoord3s(GLenum  target,
 GLshort  s,
 GLshort  t,
 GLshort  r);
void glMultiTexCoord3i(GLenum  target,
 GLint  s,
 GLint  t,
 GLint  r);
void glMultiTexCoord3f(GLenum  target,
 GLfloat  s,
 GLfloat  t,
 GLfloat  r);
void glMultiTexCoord3d(GLenum  target,
 GLdouble  s,
 GLdouble  t,
 GLdouble  r);
void glMultiTexCoord4s(GLenum  target,
 GLshort  s,
 GLshort  t,
 GLshort  r,
 GLshort  q);
void glMultiTexCoord4i(GLenum  target,
 GLint  s,
 GLint  t,
 GLint  r,
 GLint  q);
void glMultiTexCoord4f(GLenum  target,
 GLfloat  s,
 GLfloat  t,
 GLfloat  r,
 GLfloat  q);
void glMultiTexCoord4d(GLenum  target,
 GLdouble  s,
 GLdouble  t,
 GLdouble  r,
 GLdouble  q);

Parameters

target

Specifies the texture unit whose coordinates should be modified. The number of texture units is implementation dependent, but must be at least two. Symbolic constant must be one of GL_TEXTUREi, where i ranges from 0 to GL_MAX_TEXTURE_COORDS - 1, which is an implementation-dependent value.

s, t, r, q

Specify s, t, r, and q texture coordinates for target texture unit. Not all parameters are present in all forms of the command.

C Specification

void glMultiTexCoord1sv(GLenum  target,
 const GLshort *  v);
void glMultiTexCoord1iv(GLenum  target,
 const GLint *  v);
void glMultiTexCoord1fv(GLenum  target,
 const GLfloat *  v);
void glMultiTexCoord1dv(GLenum  target,
 const GLdouble *  v);
void glMultiTexCoord2sv(GLenum  target,
 const GLshort *  v);
void glMultiTexCoord2iv(GLenum  target,
 const GLint *  v);
void glMultiTexCoord2fv(GLenum  target,
 const GLfloat *  v);
void glMultiTexCoord2dv(GLenum  target,
 const GLdouble *  v);
void glMultiTexCoord3sv(GLenum  target,
 const GLshort *  v);
void glMultiTexCoord3iv(GLenum  target,
 const GLint *  v);
void glMultiTexCoord3fv(GLenum  target,
 const GLfloat *  v);
void glMultiTexCoord3dv(GLenum  target,
 const GLdouble *  v);
void glMultiTexCoord4sv(GLenum  target,
 const GLshort *  v);
void glMultiTexCoord4iv(GLenum  target,
 const GLint *  v);
void glMultiTexCoord4fv(GLenum  target,
 const GLfloat *  v);
void glMultiTexCoord4dv(GLenum  target,
 const GLdouble *  v);

Parameters

target

Specifies the texture unit whose coordinates should be modified. The number of texture units is implementation dependent, but must be at least two. Symbolic constant must be one of GL_TEXTUREi, where i ranges from 0 to GL_MAX_TEXTURE_COORDS - 1, which is an implementation-dependent value.

v

Specifies a pointer to an array of one, two, three, or four elements, which in turn specify the s, t, r, and q texture coordinates.

Description

glMultiTexCoord specifies texture coordinates in one, two, three, or four dimensions. glMultiTexCoord1 sets the current texture coordinates to s 0 0 1 ; a call to glMultiTexCoord2 sets them to s t 0 1 . Similarly, glMultiTexCoord3 specifies the texture coordinates as s t r 1 , and glMultiTexCoord4 defines all four components explicitly as s t r q .

The current texture coordinates are part of the data that is associated with each vertex and with the current raster position. Initially, the values for s t r q are 0 0 0 1 .

Notes

glMultiTexCoord is only supported if the GL version is 1.3 or greater, or if ARB_multitexture is included in the string returned by glGetString when called with the argument GL_EXTENSIONS.

The current texture coordinates can be updated at any time. In particular, glMultiTexCoord can be called between a call to glBegin and the corresponding call to glEnd.

It is always the case that GL_TEXTURE i = GL_TEXTURE0 + i.

Associated Gets

glGet with argument GL_CURRENT_TEXTURE_COORDS with appropriate texture unit selected.

glGet with argument GL_MAX_TEXTURE_COORDS

See Also

glActiveTexture, glClientActiveTexture, glTexCoord, glTexCoordPointer, glVertex

Copyright

Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.