After your simulation is ready you can render the agents using renderman, arnold, vray (maya only or stand alone). For each of these render engines we provide procedurals that can be executed inside Maya/Houdini or with the stand alone renderer.
All the procedurals need an atoms cache and a variation json file (if you don't specify one the one from your scene will be used).
Please check again the rendering section to know more about what you can do with each renderer.
Maya
From the Atoms menu create a proxy node: Atoms → Rendering → Create AtomsProxy Node
From the AtomsProxy node set the cache file (the yourCacheName.atoms file). If you want offset the frame use the offsetFrame attribute. If you want use a specific variation json file instead of the one from the scene, please set the json file path inside the variation attribute.
Launch the render and you should see your agents appearing in your final image.
Houdini
In houdini you can use the atoms proxy node only to visualize a cache. To render the agents you must use an arnold or renderman procedural node. From the Atoms menu use the Create Renderman/Arnold procedural commands. They will create the right procedural nodes and set up all the parameters to render your cache.
Building variations
Please have look to the next section to know more about how you can use variations.
Using Lod
You might also setup geos and materials for different LOD levels.
The render procedural use the agent "lod" string metadata to render the correct lod geos and materials. To setup the lod on the agents you can use the lod behaviour module or you can just add a lod string metadata with a custom module. The "lod" and "variation" metadata will be saved inside your cache and used at render time.