Method

CoglPipelineset_per_vertex_point_size

Declaration [src]

gboolean
cogl_pipeline_set_per_vertex_point_size (
  CoglPipeline* pipeline,
  gboolean enable,
  GError** error
)

Description [src]

Sets whether to use a per-vertex point size or to use the value set by cogl_pipeline_set_point_size(). If per-vertex point size is enabled then the point size can be set for an individual point either by drawing with a CoglAttribute with the name ‘cogl_point_size_in’ or by writing to the GLSL builtin ‘cogl_point_size_out’ from a vertex shader snippet.

If per-vertex point size is enabled and this attribute is not used and cogl_point_size_out is not written to then the results are undefined.

Parameters

enable

Type: gboolean

Whether to enable per-vertex point size.

error

Type: GError **

The return location for a recoverable error.

The argument can be NULL.
If the return location is not NULL, then you must initialize it to a NULL GError*.
The argument will be left initialized to NULL by the method if there are no errors.
In case of error, the argument will be set to a newly allocated GError; the caller will take ownership of the data, and be responsible for freeing it.

Return value

Type: gboolean

TRUE if the change succeeded or FALSE otherwise.