(PECL openal >= 0.1.0)
openal_source_set — Set source property
sourceAn Open AL(Source) resource (previously created by openal_source_create()).
property
Property to set, one of:
AL_BUFFER (OpenAL(Source)),
AL_LOOPING (bool),
AL_SOURCE_RELATIVE (int),
AL_SOURCE_STATE (int),
AL_PITCH (float),
AL_GAIN (float),
AL_MIN_GAIN (float),
AL_MAX_GAIN (float),
AL_MAX_DISTANCE (float),
AL_ROLLOFF_FACTOR (float),
AL_CONE_OUTER_GAIN (float),
AL_CONE_INNER_ANGLE (float),
AL_CONE_OUTER_ANGLE (float),
AL_REFERENCE_DISTANCE (float),
AL_POSITION (array(float,float,float)),
AL_VELOCITY (array(float,float,float)),
AL_DIRECTION (array(float,float,float)).
setting
Value to assign to specified property.
Refer to the description of property
for a description of the value(s) expected.
成功时返回 true， 或者在失败时返回 false。