2013
Khronos Group
glDispatchCompute
3G
glDispatchCompute
launch one or more compute work groups
C Specification
void glDispatchCompute
GLuint num_groups_x
GLuint num_groups_y
GLuint num_groups_z
Parameters
num_groups_x
The number of work groups to be launched in the X dimension.
num_groups_y
The number of work groups to be launched in the Y dimension.
num_groups_z
The number of work groups to be launched in the Z dimension.
Description
glDispatchCompute launches one or more compute
work groups. Each work group is processed by the active program object for the compute
shader stage. While the individual shader invocations within a work group are
executed as a unit, work groups are executed completely independently and in
unspecified order. num_groups_x, num_groups_y
and num_groups_z specify the number of local
work groups that will be dispatched in the X, Y and Z dimensions, respectively.
Errors
GL_INVALID_OPERATION is generated if there is no active program
for the compute shader stage.
GL_INVALID_VALUE is generated if any of num_groups_x,
num_groups_y, or num_groups_z is greater than or
equal to the maximum work-group count for the corresponding dimension.
Associated Gets
glGet with argument GL_MAX_COMPUTE_WORK_GROUP_COUNT
See Also
glDispatchComputeIndirect.
Copyright
Copyright 2013 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/.