Method
CoglPipelineset_uniform_float
Declaration [src]
void
cogl_pipeline_set_uniform_float (
CoglPipeline* pipeline,
int uniform_location,
int n_components,
int count,
const float* value
)
Description [src]
Sets new values for the uniform at uniform_location. If this
pipeline has a user program attached and is later used as a source
for drawing, the given values will be assigned to the uniform which
can be accessed from the shader’s source. The value for
uniform_location should be retrieved from the string name of the
uniform by calling cogl_pipeline_get_uniform_location().
This function can be used to set any floating point type uniform,
including float arrays and float vectors. For example, to set a
single vec4 uniform you would use 4 for n_components and 1 for
count. To set an array of 8 float values, you could use 1 for
n_components and 8 for count.
Parameters
uniform_location-
Type:
intThe uniform’s location identifier.
n_components-
Type:
intThe number of components in the corresponding uniform’s type.
count-
Type:
intThe number of values to set.
value-
Type:
const float*Pointer to the new values to set.
The data is owned by the caller of the method.