Cycles Render Settings Explained: Sampling and Light Paths


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All of Blender Cycles’ sampling and light path settings explained in one video. Aimed at beginners, but helpful for anyone.

Topics include: sampling, clamp values, path and branched path tracing, volume step size and max steps, min and max bounces, transparency, and much more!

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29 responses to “Cycles Render Settings Explained: Sampling and Light Paths”

  1. Hi, i cannot find the settings in the sampling tab. I only have the path tracing settings, and not branched path tracing settings. I can still use branched tracing, but there is no glossy/transmission/diffuse etc settings.

    Please help me

  2. Wait a minute. Are you saying that by typing '#frame' into the samples seed, your seed will be synced with the current frame number? Say I want a car wheel to spin forever without me having to animate it… Can I just use '#frame' for a rotation or position value to create drivers? Off topic, I know, but this little nugget made my day… Subbed.

  3. I do have a little question. Lately I've been using mys etting with the minimum and maximum boinces set to 0 and 4 respectively. The rest of the bounces (diffuse, glossy, etc) set to 128. Now, I got confused becasue the way soy said it it sounded to me like that 128 numer is never going to get hit asi the max bounce is set to 4; so even that i have allt he bounces at 128 I am only getting four? Also, i didnt got why the minimum should he lower, as I understood it is best to have it match with the max value…

  4. Great tutorial; thanks.  If you set the Preview samples to 0 in the Scene -> Sampling properties (with the simpler Path Tracing selected) it never stops sampling and keeps going forever, which can be nice sometimes.

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