In the example above, I would set the Transmission amount higher than others as it is the most noticeable when reduced. Set the Min to 0 and Max to a low setting. Experiment with the setting till you find a value that achieves a good amount of realism, but without sacrificing too much in rendertimes.įor even more fine tuning, you can adjust the amount of bounces for individual light path types like diffuse, transmission and glossy. To change the number of bounces, go to the render panel and under Light Paths, you'll find Bounces ( screenshot). I use Cycles a lot, and I rarely need more than 4 bounces for adequate realism. However, this realism comes at the price of render times.īy default the maximum amount of Light Bounces is set to 8. It's what makes the scene look so good in comparison to the Internal renderer. What are light bounces you ask? Light bounces are indirect light that bounces off walls and other objects. One of the biggest reasons that Cycles takes so long to render is because it calculates light bounces. This may sound like an obvious tip to some of you, but a lot of users aren't aware just how much faster GPU rendering is.
So without further ado, here's a list of 4 Easy Ways You Can Speed Up Cycles. It's built for realism, and if you want it fast you have to turn stuff OFF." (said during a conversation at the 2012 Blender Conference). In the words of Thomas Dinges (developer), "The Internal rendering engine was built for speed, but if you wanted realism you had to turn stuff on. I posted this news recently on the Blender Guru Facebook Page and besides the initial shock, the overwhelming response was "Noooo! Cycles is too slow!"īut here's the thing: Cycles can be fast. If you haven't made the switch already, then you may want to consider it. What does this mean? It means that the future of Blender will likely be Cycles only. Apparently the decision was made 2 years ago that the Internal Render Engine development would cease, and be focused on Cycles instead.įor some reason this news was never broadcast to the community, so I'm doing it right now. Did you know that the Blender Internal render engine has been discontinued? *gasp!*
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