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Re: Product Renders

Postby bepster » April 12th, 2018, 2:39 am

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Yeah, I have noticed that to but I am not really a fan of doing this on the whole render like a filter.
It just looks to stylized for my taste but it depends on the purpose, object and story and there are definitely instances when it can be effective.
There are for sure lots of render cliches out there now but I guess these are just trends and they come and go.

What I have done a bit is to add noise to specific parts of the object to give it a bit more life.
Sometimes on fabrics for example to give them some more depth.
What I on the other hand use almost always is just a little bit of the high pass filter in PS.

But in the end no amount of post will save a crappy design so in the end, it all comes down to that :wink:

Re: Product Renders

Postby AVClub » April 12th, 2018, 7:43 am


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bepster wrote:Yeah, I have noticed that to but I am not really a fan of doing this on the whole render like a filter.
It just looks to stylized for my taste but it depends on the purpose, object and story and there are definitely instances when it can be effective.
There are for sure lots of render cliches out there now but I guess these are just trends and they come and go.

What I have done a bit is to add noise to specific parts of the object to give it a bit more life.
Sometimes on fabrics for example to give them some more depth.
What I on the other hand use almost always is just a little bit of the high pass filter in PS.

But in the end no amount of post will save a crappy design so in the end, it all comes down to that :wink:


Agreed, it can be helpful on certain aspects, but I don't really like the look of it on the whole image. Utilizing clown paths and noise however can be a great tool.

Re: Product Renders

Postby yo » April 12th, 2018, 10:23 pm

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Funny. I did an in screen render real quick of something for a client today and it was grainy just like that. I wonder if it is a case of it becoming a style to look like quick renders? I’ll try to render up an old file tomorrow so you can see what I mean.

Re: Product Renders

Postby ralphzoontjens » April 13th, 2018, 4:45 am

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When used solely as an attempt to elevate what would otherwise be a mediocre rendering, though, it becomes a crutch just like using an Instagram filter to elevate a mediocre photo. Really dig into your materials, lighting, and geometry, and you'll eventually find that a noisy rendering will generally look inferior to something more polished.


Exactly. Also a great point on photorealism vs realism, Louis.

The comparison of noise vs. no noise is a good example, you can see it adds a more realistic and warmer touch.
For a better effect, use slightly less (-0.25/0.5%) noise and whiten the background more so it becomes cleaner.

The best thing to do instead of noise is making materials more realistic with a slight bump and specular texture especially on wood and an added opacity texture for fabrics. Then what I do sometimes, a little Spielbergian, is adding a warm light panel on the side where light hits from the top, and a blue/purple one where the drop shadow is. See an example of my recent project here: http://designsoul.nl/comodo.shtml
I find these colored side fill lights very effective. You can also spot the 1% noise here!

However for quick and dirty concept renders that have to be done in a few hours, including the CAD work, only adding that bit of noise is a way to improve workflow.
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IDZone - Product Design || Visualisation || 3D Printing

Re: Product Renders

Postby yo » April 13th, 2018, 11:59 am

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I see that photoshop added a grain slider in the camera raw filter BTW
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Re: Product Renders

Postby yo » April 13th, 2018, 12:47 pm

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I still think it might be a result of the rendering tools. Check this out. I used some old CAD I had from a phone I worked on with Brian Cutter that sold on the Chinese market about 6 years ago. If I do an in canvas render and set the resolution lower it comes out grainy. Let it bake a little longer, a little less grainy... then 20 mins of photoshop.

MD
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Screen Shot 2018-04-13 at 10.28.49 AM.jpg
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Re: Product Renders

Postby louis leblanc » April 13th, 2018, 2:23 pm

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Some of it is certainly short render times. But it is also quite often a deliberate stylistic choice.

A lot of CG tutorial will mention adding grain at some point in their process. And that trend seems to have made its way to ID.

Here's an example from Lumion.
https://lumion.com/blog.html?post=156444714445

I think some of the images on this project use this technique to good effect. Yes the black plastic has a texture but it feels like grain is added everywhere as well.:
https://www.behance.net/gallery/5997984 ... er-curtain

Re: Product Renders

Postby hectorsilvajr » April 13th, 2018, 4:27 pm


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Stop the hate.

#NoiseLife
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Re: Product Renders

Postby nickbaker » April 15th, 2018, 11:54 pm

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Hey guys,

Just for original reference here's the unfiltered vs filtered version of the OP.

I modeled this in gravity sketch (exports crude .obj files), rendered in keyshot, added noise and chromatic aberration in Ps, and finally a instagram filter and adjustments.

The main reason I add the post-processing is for realism. Google "how to make a render look realistic" and you'll get all kinds of tips and tricks on how to add imperfections to achieve a more photorealistic render.

-Nick
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Re: Product Renders

Postby yo » April 16th, 2018, 7:07 pm

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I still prefer things a bit less noisy.

Here you can see another one with the times spent.

not enough time in the oven:

Screen Shot 2018-04-16 at 4.30.20 PM.jpg


A bit more time in the oven:
Screen Shot 2018-04-16 at 4.58.21 PM.jpg


Went for a walk with the dog and came back:
_2016_12_26_asm v4.png


5 minutes of photoshop on top
_2016_12_26_asm v4ps.png

Re: Product Renders

Postby holtag » April 16th, 2018, 9:18 pm

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Those 5 minutes on top make such a big difference. Don't get lazy folks! (Also, reminding myself...)

Re: Product Renders

Postby yo » April 16th, 2018, 10:50 pm

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just a little bit of levels, camera raw filter, and making the LEDs glow.

Re: Product Renders

Postby MK19 » April 18th, 2018, 7:36 am


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You use F360 for all modelling?

Re: Product Renders

Postby yo » April 18th, 2018, 9:07 am

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We have been using it pretty extensively here. 2 of our clients have been trying it as well.

Re: Product Renders

Postby Dan Lewis » April 18th, 2018, 9:46 am

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yo wrote:I still prefer things a bit less noisy.

Here you can see another one with the times spent.

not enough time in the oven:

Screen Shot 2018-04-16 at 4.30.20 PM.jpg


A bit more time in the oven:
Screen Shot 2018-04-16 at 4.58.21 PM.jpg


Went for a walk with the dog and came back:
_2016_12_26_asm v4.png


5 minutes of photoshop on top


_2016_12_26_asm v4ps.png


Weird mapping of fabric texture on the top.

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