BradLarson/GPUImage — pull request #484 by gavrix (2012-09-18 18:31:40+00:00)
Title: Tone curve filter initializing suggestion

Currently, `GPUImageToneCurveFilter` is initialized with acv file name, and filter itself construct filepath from it assuming acv file is located in root of Documents directory. In case this file is stored somewhere else — there is absolutely no way to init this filter form it. My suggestion is to provide API for the user to be able to create filter from explicit fileURL.