Name

cgSetParameter4d - set the value of scalar and vector parameters

Synopsis

#include <Cg/cg.h>

void cgSetParameter4d( CGparameter param,
                       double x,
                       double y,
                       double z,
                       double w );

Parameters

param

The parameter that will be set.

x, y, z, w

The values used to set param.

Return Values

None.

Description

cgSetParameter4d sets the value of a given scalar or vector parameter.

If more values are passed in than param requires, the extra values will be ignored.

Once cgSetParameter4d has been used to set a parameter, the values may be retrieved from the parameter using the CG_CURRENT enumerant with cgGetParameterValues.

If an API-dependant layer of the Cg runtime (e.g. cgGL) is used, these entry points may end up making API (e.g. OpenGL) calls.

Examples

to-be-written

Errors

CG_INVALID_PARAM_HANDLE_ERROR is generated if param is not a valid parameter.

CG_INVALID_PARAMETER_ERROR is generated if param is a varying input to a fragment program.

History

cgSetParameter4d was introduced in Cg 1.2.

See Also

cgGetParameterValue, cgGetParameterValues