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Vaibhav Thakur avatar image
Vaibhav Thakur asked ·

cant render particle effect in arnold can any one help me?

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Michiel Van Gasse answered ·

As Lee Griggs says, up the Transparency depth number.


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Vaibhav Thakur avatar image
Vaibhav Thakur answered ·

ok that helped a lot... any more settings I shoud look into?

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Lee Griggs avatar image
Lee Griggs answered ·

I converted it to a 32-bit exr and got better results.

Looking at the image in Photoshop, the smoke seems to be clipped at the edges.


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Vaibhav Thakur avatar image
Vaibhav Thakur answered ·

here is the scene

scenes.zip


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Michiel Van Gasse avatar image
Michiel Van Gasse answered ·

I cannot reproduce it, works fine in my setups.

Maybe upload a sample scene?

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Vaibhav Thakur avatar image
Vaibhav Thakur answered ·

yes I already did, and it didn't work... thats why I am not using it as transparency map but as opacity map(see first pic, material options).

every thing related to transparency, opacity has the same problem...

same things happening with physical material...

its arnold render issue

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Lee Griggs avatar image
Lee Griggs answered ·

Have you tried increasing the Transparency Depth?

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Vaibhav Thakur avatar image
Vaibhav Thakur answered ·

its a simple smoke scene which includes a particle system(PF source), a plane and arnold distance light.

the opacity is not working correctly... if I use less particles it works but if I use a lot, the opacity doesn't work like it should be

particle amount 200+ settings and material I am using

particle amount 100

particle amount 70

particle amount 50{finally its gone(but its not what I want)}

render is set to arnold(obviously)

exposure control set to physical camera

let me know if I miss something...

P.S. Its only happening in arnold only... Others renders are fine... Everything is update to latest


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amount70.jpg (150.0 KiB)
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Lee Griggs avatar image
Lee Griggs answered ·

Which particles are you using? Are they sprites? Can you provide more information about the scene, please?

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