SIGGRAPH 2015 - 8th ACM SIGGRAPH Conference and Exhibition on Computer Graphics and Interactive Techniques in Asia

All contributors to SIGGRAPH Asia Annual Conferences are now required to use ACM's rights management system to grant rights to publish accepted content rather than through the online submission system. Essentially, submission tracking, jury review, and acceptance remain the same, but now the rights management is through ACM, the parent organization of SIGGRAPH Asia.
You will be asked to complete an ACM rights management form, which includes permission to record and distribute the audio and video of your recorded presentation through official channels of ACM/SIGGRAPH Asia. For most content types, this will be a Permission and Release form, which allows authors to retain copyright.
More Information on these options (the FAQ is particularly useful)
Samples of the ACM Copyright Form and the ACM Publishing License
As a contributor to an ACM-sponsored event, the following expectations apply to you, should your content be accepted for presentation:
You have the permission to use everything that is in your presentation. This includes securing permission to use third-party material, and providing documentation of that permission to ACM. (More information on the proper use of third-party material in your presentation)
If you are using copyrighted musical compositions in your presentation, you must secure performing rights licenses.
You must have the authority to grant ACM the right to distribute your presentation.
Once your contribution is accepted, you will receive a link via email to the appropriate form for your contribution. Good luck!