There are different methods for both GI and AO, but they are each very similar: This will create a project folder where the project and all of its assets are self contained and easy for the program and any Team Render Clients to reference them this include the GI and AO cache files, as well as external textures, dynamics or MoGraph caches, etc. These prepass cache files can also be shared by your Team Render Clients if you're using it, so it allows your render farm to reference a prepass that uses data from your workstation instead of having to calculate the effect itself and create a different looking effect (this is what causes flickering or checkering in the render).īefore creating a prepass cache it is recommended that you first do a File > Save Project With Assets.

To remedy these problems, it is recommended that when you are ready to render and have no further edits to make in your project, you create a GI or AO prepass cache so that your machine(s) can quickly reference the cache rather than having to calculate the prepass before each render. the same way as your main workstation, so it may actually be necessary to cache these effects to create a uniform look in the render. If you're using Team Render, it's also important to understand that different machines do not always calculate random seeded effects like MoGraph, Dynamics, GI, AO, etc.

Especially when using Team Render, having an un-cached Global Illumination (GI) or Ambient Occlusion (AO) effect can drastically slow down the preparation time of your render as your machine(s) will have to calculate a 'prepass' to render these effects.

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