Mac Pro: OpenCl rendering: max path depth

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tornello
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Mac Pro: OpenCl rendering: max path depth

Post by tornello » Mon Feb 19, 2018 11:45 pm

Hello I have a Mac Pro and I can't understand 2 things :?
I have 2 AMD FirePro D500 3 GB and when I open Indigo render settings I see in the list of OpenCl also the Intel Xeon CPU E5-1650 see screenshot
Schermata 2018-02-19 alle 12.38.14.png
1) When I use OpenCl rendering is it better to use also Xeon CPU?
2) What is the numbers of "max path depth" to use?

Thank you to read my terrible english

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lycium
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Re: Mac Pro: OpenCl rendering: max path depth

Post by lycium » Tue Feb 20, 2018 5:42 am

To answer your questions,

1. It's probably better not to use the CPU, though you are welcome to do a quick test to see if it helps

2. It's the number of bounces of light to compute with the GPU, I think you could use a default value of 8 and maybe try higher if you have very complex glass scene or something.

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tornello
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Re: Mac Pro: OpenCl rendering: max path depth

Post by tornello » Tue Feb 20, 2018 6:14 am

Hello and Thank you very much for your answers :D

I am testing last Indigo for the first time and so 8 is default number, regardless of the power of the PC?

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lycium
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Re: Mac Pro: OpenCl rendering: max path depth

Post by lycium » Tue Feb 20, 2018 11:09 am

Yes, it only affects the number of indirect illumination bounces; 8 is fine for basically all scenes except with complex glass reflections and refractions.


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