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--- render [2015/06/01 22:33]
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-[[{arrowp.png|border:0;background:none;width:0;display:inline-block;position:absolute;top:0;left:0;}qtractor|]]
-[[{arrown.png|border:0;background:none;width:0;display:inline-block;position:absolute;top:0;margin-left:2.5em;}rosegarden|]]
-====== Render Farming ======
-Rendering in Blender can take a long time, depending on resolution and complexity. With the rise in popularity of homebrewed and small studio 3d art, there are countless Internet-based render services available, and depending on your requirements, that might make sense for you. As always, it makes sense to support services that support open source, and one of the best supporters of open source rendering is [[http://render.st|Render Street]], with Blender Cycles, LuxRender, and Yafaray services available. They are sponsors of Blender, and also help fund various open movie projects.
-Render Street operates on a sliding scale, so pricing is relative to your needs.
-There is an entirely no-cost option at [[https://www.sheepit-renderfarm.com/]], although in order to "pay" for your renders, you must also contribute computer time to other people's renders.
-You do not have to submit your renders to the Internet just to speed up your export. Building your own render farm is easy as long as you have a few computers to spare.
-==== CGRU ====
-Afanasy is part of the [[http://cgru.info|CGRU Cg Toolkit]], and it includes software to drive the render farm, to manage the render queue, scripts to produce dailies, and more.
-Set up is fairly simple; install the server on a "master" machine, install the clients on subordinate machines, and finally install the Blender plugin so that jobs can be submitted.
-==== No Farm ====
-If any kind of render management system is overkill, you can create an ad-hoc render farm in Blender itself. This is the duct-tape version of a render farm, but if you just need two or three computers working on a render to speed things along a bit, this could be a good solution for you.
-In order for there to be multiple machines working on the same render, you //must// render to an image sequence rather than to a movie file. The reason for this is simple: each computer (node) will take one image to render.
-Before you render, go to the **Properties** panel and click the **Render** tab. In the **Output** section:
-  *Overwrite: Turn this **off** so that no node in your ad hoc farm overwrites the work of another.
-  *Placeholder: Turn **on** so that each node create an image file immediately upon claiming the frame to render. This prevents two nodes from working on the same frame.
-  *File Format: Render to image files, not to movie files.
-With these options activated, you can point each Blender instance on each computer to the same network filesystem, (you can use **fish** or **samba** in KDE) and open the scene you need to render. Each computer will render frames until there are no frames left to render.
-    blender /network/drive/foo.blend -o /network/drive/out -t 0 -a
-Be sure to have -f # or -a last since rendering will run and evaluate the other args later.
-[[{arrown.png|border:0;background:none;width:0;display:inline-block;float:right;}rosegarden|]][[{arrowp.png|border:0;background:none;width:0;float:right;}qtractor|]]