Render Book(Stromberg)

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Stromberg
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Re: Render Book(Stromberg)

Post by Stromberg » Sat Jul 18, 2009 11:16 am

Thanks for the comments, working on all the comments now.
A special thanks to WytRaven for the great suggestions :)

Stromberg
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Re: Render Book(Stromberg)

Post by Stromberg » Sat Jul 18, 2009 11:22 am

Here is a new render, going to setup a exr map soon so it has something to reflect, it's looking to dull now.
And i will tone down the scratches :wink:
Mp3_Player_Real.jpg
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Stromberg
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Re: Render Book(Stromberg)

Post by Stromberg » Sat Jul 18, 2009 1:44 pm

It has a exr map now, but the chrome still dont look right :P
Using the chrome nk data, atleast i think i do(Cr.nk?)
Mp3_Player_Real.jpg
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WytRaven
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Re: Render Book(Stromberg)

Post by WytRaven » Sat Jul 18, 2009 2:29 pm

screen looks much better now :)

Yeah the scratches were perhaps a wee bit on the extreme side :lol: assuming your scratch map is using the full black to white range available set your B value (or high level exporter equivalent) on the bump texture down to something like 0.0001. This of course assumes you are modeling to correct scale.

At the moment you have the scratches at uniform depth right up to the top edge of the chrome casing whereas you are much more likely to get scratching around the curved edge and the underside from general use so tone down scratching as you come up from the rounded edge. If you look at the last 2 pages of my rings WIP thread there is some discussion there on scratch mapping and an example of the map I used for the final rings render. But to summarize I built a uniform scratch map with various layers of scratching. Basically as the frequency of scratching increases I have reduced the scratch intensity (made whiter) and around the inside of the ring where the rubbing of the skin naturally polishes I used a large soft white brush to really shallow out the scratches.

As for the chrome the only reason it looks "flat" is that you aren't picking up any reflections. So you need more detail in the surface the chrome is sitting on or position lights/camera to better grab reflections.

Hope that helps...the few changes you've made thus far have already made a world of difference :)
:idea: "A foolish consistency is the hobgoblin of little minds..." - Emerson 1841

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WytRaven
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Re: Render Book(Stromberg)

Post by WytRaven » Sat Jul 18, 2009 3:00 pm

Here try this. I just cropped and modified my rings scratch map for you and attached it below but if you look at this image you can see how I would use it from a UV mapping perspective. Red is the edge of the chrome casing (where it meets the plastic front bezel), yellow area should be where the sides go, and green is the underside. The edge of yellow/green would be centered on the bevel between sides and underside....make sense? ...Think of it like turning your player upside down and then hitting it with a sledge hammer to pancake the chrome backing flat :lol:

Anyway this might give you something to start working from anyway :)
MP3PlayerBaseScratchZones.jpg
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MP3PlayerBaseScratch.png.zip
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:idea: "A foolish consistency is the hobgoblin of little minds..." - Emerson 1841

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Zom-B
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Re: Render Book(Stromberg)

Post by Zom-B » Sat Jul 18, 2009 10:51 pm

using such a scratch map as Exponent Map results sometimes in a better and softer image, just give it a try :)
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Stromberg
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Re: Render Book(Stromberg)

Post by Stromberg » Sun Jul 19, 2009 12:10 am

Thanks again WytRaven :)
Going to work on the suggestions now, and til nex time i do know what a uv map is, i was just going to test to see if i could get some chrome going without starting with the scratches. But nice way of explaining it tough :)
ZomB.
I did use exponent but it was looking to soft. I may try that again soon :)

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Re: Render Book(Stromberg)

Post by Stromberg » Sun Jul 19, 2009 10:33 am

Here is a update, hope it looks better to you :)
And this is a real wip, cause now you all get the chance to influence to picture.
Mp3_Player_Real.jpg
Mp3_Player_Real.jpg (97.03 KiB) Viewed 1255 times
Here is the scratch map i did for the player.
Chrome_Scratches.jpg
Chrome_Scratches.jpg (158.83 KiB) Viewed 1253 times

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suvakas
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Re: Render Book(Stromberg)

Post by suvakas » Sun Jul 19, 2009 10:51 am

Bump map is too strong, has too low res and scratches are too fat. :P
Try with exponent map instead.

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Re: Render Book(Stromberg)

Post by Stromberg » Sun Jul 19, 2009 11:07 am

This scene is going to make me mad :?
I have never had so much problem with a single scene.
Well still working on it, trying to use it as a exponent map now, without the bump this time.

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Re: Render Book(Stromberg)

Post by Stromberg » Sun Jul 19, 2009 11:17 am

Using exponent map dosnt work at all, since it only reflects the floor. You wont see any diffrence.
Hopefully i can work something out :)

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Re: Render Book(Stromberg)

Post by Stromberg » Sun Jul 19, 2009 4:00 pm

Feels like i am heading the right way now :)
Mp3_Player_All_Lights.jpg
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Mp3_Player_One_Light.jpg
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Re: Render Book(Stromberg)

Post by Stromberg » Wed Jul 22, 2009 3:22 am

Mp3_Player_Real.jpg
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suvakas
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Re: Render Book(Stromberg)

Post by suvakas » Wed Jul 22, 2009 6:59 am

Here you go. I saved your mp3 player. It started to get lost into all that pink. :wink:
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PureSpider
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Re: Render Book(Stromberg)

Post by PureSpider » Wed Jul 22, 2009 7:29 am

Why is it floating, anyway? :mrgreen:

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