GLSCISSORARRAY - Online Linux Manual Page

Section : 3G
Updated : 01/20/2022
Source : [FIXME: source]
Note : [FIXME: manual]

NAMEglScissorArray − define the scissor box for multiple viewports

C SPECIFICATIONvoid glScissorArrayv(GLuint first, GLsizei count, const GLint *v);

PARAMETERSfirst Specifies the index of the first viewport whose scissor box to modify​. count Specifies the number of scissor boxes to modify​. v Specifies the address of an array containing the left, bottom, width and height of each scissor box, in that order​.

DESCRIPTIONglScissorArrayv defines rectangles, called scissor boxes, in window coordinates for each viewport​. first specifies the index of the first scissor box to modify and count specifies the number of scissor boxes to modify​. first must be less than the value of GL_MAX_VIEWPORTS, and first + count must be less than or equal to the value of GL_MAX_VIEWPORTS​. v specifies the address of an array containing integers specifying the lower left corner of the scissor boxes, and the width and height of the scissor boxes, in that order​. To enable and disable the scissor test, call glEnable() and glDisable with argument GL_SCISSOR_TEST​. The test is initially disabled for all viewports​. While the test is enabled, only pixels that lie within the scissor box can be modified by drawing commands​. Window coordinates have integer values at the shared corners of frame buffer pixels​. glScissor(0,0,1,1) allows modification of only the lower left pixel in the window, and glScissor(0,0,0,0) doesn't allow modification of any pixels in the window​. When the scissor test is disabled, it is as though the scissor box includes the entire window​.

ERRORSGL_INVALID_VALUE is generated if first is greater than or equal to the value of GL_MAX_VIEWPORTS​. GL_INVALID_VALUE is generated if first + count is greater than or equal to the value of GL_MAX_VIEWPORTS​. GL_INVALID_VALUE is generated if any width or height specified in the array v is negative​.

ASSOCIATED GETSglGet() with argument GL_SCISSOR_BOX glIsEnabled() with argument GL_SCISSOR_TEST

VERSION SUPPORT
OpenGL Version
Function / Feature Name 2​.0 2​.1 3​.0 3​.1 3​.2 3​.3 4​.0 4​.1 4​.2 4​.3 4​.4 4​.5
glScissorArrayv

SEE ALSOglEnable(), glViewport(), glViewportIndexed(), glViewportArray()

COPYRIGHTCopyright © 2010−2014 Khronos Group​. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1​.0, 8 June 1999​. http://opencontent​.org/openpub/​.

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