_glCopyTexSubImage2D

The _glCopyTexSubImage2D statement copies a sub-image of a two-dimensional texture image from the framebuffer.

Syntax

_glCopyTexSubImage2D GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height

Parameters

• OpenGL is using its own set of variable types to describe its command parameters.
• Use the following table to find the respective QB64 Variable Types.

OpenGL | C/C++ | QB64 ------------+------------------+---------------------- GLenum | unsigned int | _UNSIGNED LONG GLboolean | unsigned char | _UNSIGNED _BYTE GLbitfield | unsigned int | _UNSIGNED LONG GLbyte | signed char | _BYTE GLshort | short | INTEGER GLint | int | LONG GLsizei | int | LONG GLubyte | unsigned char | _UNSIGNED _BYTE GLushort | unsigned short | _UNSIGNED INTEGER GLuint | unsigned int | _UNSIGNED LONG GLfloat | float | SINGLE GLclampf | float | SINGLE GLdouble | double | DOUBLE GLclampd | double | DOUBLE GLvoid | void | no parameters used

Description

• OpenGL's documentation is available in several places, so we won't reproduce it here for another time.
• The full description for this command can be found at Microsoft Docs and is also valid for QB64 usage.

See also

• SUB _GL
• _glBegin, _glCopyPixels, _glCopyTexSubImage1D, _glDrawPixels
• _glEnd, _glFog, _glPixelStore, _glPixelTransfer
• _glTexEnv, _glTexGen, _glTexImage2D, _glTexSubImage2D
• _glTexParameter

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