glinterleavedarrays(3g) [centos man page]
GLINTERLEAVEDARRAYS(3G) OpenGL Manual GLINTERLEAVEDARRAYS(3G) NAME
glInterleavedArrays - simultaneously specify and enable several interleaved arrays C SPECIFICATION
void glInterleavedArrays(GLenum format, GLsizei stride, const GLvoid * pointer); PARAMETERS
format Specifies the type of array to enable. Symbolic constants GL_V2F, GL_V3F, GL_C4UB_V2F, GL_C4UB_V3F, GL_C3F_V3F, GL_N3F_V3F, GL_C4F_N3F_V3F, GL_T2F_V3F, GL_T4F_V4F, GL_T2F_C4UB_V3F, GL_T2F_C3F_V3F, GL_T2F_N3F_V3F, GL_T2F_C4F_N3F_V3F, and GL_T4F_C4F_N3F_V4F are accepted. stride Specifies the offset in bytes between each aggregate array element. DESCRIPTION
glInterleavedArrays lets you specify and enable individual color, normal, texture and vertex arrays whose elements are part of a larger aggregate array element. For some implementations, this is more efficient than specifying the arrays separately. If stride is 0, the aggregate elements are stored consecutively. Otherwise, stride bytes occur between the beginning of one aggregate array element and the beginning of the next aggregate array element. format serves as a ``key'' describing the extraction of individual arrays from the aggregate array. If format contains a T, then texture coordinates are extracted from the interleaved array. If C is present, color values are extracted. If N is present, normal coordinates are extracted. Vertex coordinates are always extracted. The digits 2, 3, and 4 denote how many values are extracted. F indicates that values are extracted as floating-point values. Colors may also be extracted as 4 unsigned bytes if 4UB follows the C. If a color is extracted as 4 unsigned bytes, the vertex array element which follows is located at the first possible floating-point aligned address. NOTES
glInterleavedArrays is available only if the GL version is 1.1 or greater. If glInterleavedArrays is called while compiling a display list, it is not compiled into the list, and it is executed immediately. Execution of glInterleavedArrays is not allowed between the execution of glBegin() and the corresponding execution of glEnd(), but an error may or may not be generated. If no error is generated, the operation is undefined. glInterleavedArrays is typically implemented on the client side. Vertex array parameters are client-side state and are therefore not saved or restored by glPushAttrib() and glPopAttrib(). Use glPushClientAttrib() and glPopClientAttrib() instead. For OpenGL versions 1.3 and greater, or when the ARB_multitexture extension is supported, glInterleavedArrays only updates the texture coordinate array for the client active texture unit. The texture coordinate state for other client texture units is not updated, regardless of whether the client texture unit is enabled or not. Secondary color values are not supported in interleaved vertex array formats. ERRORS
GL_INVALID_ENUM is generated if format is not an accepted value. GL_INVALID_VALUE is generated if stride is negative. SEE ALSO
glArrayElement(), glClientActiveTexture(), glColorPointer(), glDrawArrays(), glDrawElements(), glEdgeFlagPointer(), glEnableClientState(), glGetPointerv(), glIndexPointer(), glNormalPointer(), glSecondaryColorPointer(), glTexCoordPointer(), glVertexPointer() COPYRIGHT
Copyright (C) 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/. AUTHORS
opengl.org opengl.org 06/10/2014 GLINTERLEAVEDARRAYS(3G)
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GLTEXCOORDPOINTER(3G) GLTEXCOORDPOINTER(3G) NAME
glTexCoordPointer - define an array of texture coordinates C SPECIFICATION
void glTexCoordPointer( GLint size, GLenum type, GLsizei stride, const GLvoid *pointer ) PARAMETERS
size Specifies the number of coordinates per array element. Must be 1, 2, 3 or 4. The initial value is 4. type Specifies the data type of each texture coordinate. Symbolic constants GL_SHORT, GL_INT, GL_FLOAT, or GL_DOUBLE are accepted. The initial value is GL_FLOAT. stride Specifies the byte offset between consecutive array elements. If stride is 0, the array elements are understood to be tightly packed. The initial value is 0. pointer Specifies a pointer to the first coordinate of the first element in the array. The initial value is 0. DESCRIPTION
glTexCoordPointer specifies the location and data of an array of texture coordinates to use when rendering. size specifies the number of coordinates per element, and must be 1, 2, 3, or 4. type specifies the data type of each texture coordinate and stride specifies the byte stride from one array element to the next allowing vertices and attributes to be packed into a single array or stored in separate arrays. (Single-array storage may be more efficient on some implementations; see glInterleavedArrays.) When a texture coordinate array is specified, size, type, stride, and pointer are saved client-side state. To enable and disable the texture coordinate array, call glEnableClientState and glDisableClientState with the argument GL_TEXTURE_COORD_ARRAY. If enabled, the texture coordinate array is used when glDrawArrays, glDrawElements, glDrawRangeElements or glArrayElement is called. Use glDrawArrays to construct a sequence of primitives (all of the same type) from prespecified vertex and vertex attribute arrays. Use glArrayElement to specify primitives by indexing vertices and vertex attributes and glDrawElements to construct a sequence of primitives by indexing vertices and vertex attributes. NOTES
glTexCoordPointer is available only if the GL version is 1.1 or greater. The texture coordinate array is initially disabled and it won't be accessed when glArrayElement, glDrawElements, glDrawRangeElements, or glDrawArrays is called. Execution of glTexCoordPointer is not allowed between the execution of glBegin and the corresponding execution of glEnd, but an error may or may not be generated. If no error is generated, the operation is undefined. glTexCoordPointer is typically implemented on the client side with no protocol. The texture coordinate array parameters are client-side state and are therefore not saved or restored by glPushAttrib and glPopAttrib. Use glPushClientAttrib and glPopClientAttrib instead. When the GL_ARB_imaging extension is supported, glTexCoordPointer updates the texture coordinate array state of the active client texture unit, specified with glClientActiveTextureARB. ERRORS
GL_INVALID_VALUE is generated if size is not 1, 2, 3, or 4. GL_INVALID_ENUM is generated if type is not an accepted value. GL_INVALID_VALUE is generated if stride is negative. ASSOCIATED GETS
glIsEnabled with argument GL_TEXTURE_COORD_ARRAY glGet with argument GL_TEXTURE_COORD_ARRAY_SIZE glGet with argument GL_TEXTURE_COORD_ARRAY_TYPE glGetPointerv with argument GL_TEXTURE_COORD_ARRAY_POINTER SEE ALSO
glArrayElement, glClientActiveTextureARB, glColorPointer, glDrawArrays, glDrawElements, glDrawRangeElements, glEdgeFlagPointer, glEnable, glGetPointerv, glIndexPointer, glNormalPointer, glPopClientAttrib, glPushClientAttrib, glTexCoord, glVertexPointer GLTEXCOORDPOINTER(3G)