Invasion of the ´'`\_(ò_Ó)_/´'`

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Zom-B
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Invasion of the ´'`\_(ò_Ó)_/´'`

Post by Zom-B » Thu Jan 31, 2008 12:16 pm

Hey guys & gals...

I just finished a composition Project where I tried to use the new Indigo features render_foreground_alpha & render_region in my composition chain...

The model is taken from "Half Life 2: Episode 2" no modeling by me here!!!
But based on the normal Map of the model I generated an enhanced Bump Map, using CrazyBump, having the details from Normal Map & Bump Map into one map used here...

A 1080p version can be found on my Gallery :)

The main task in this project was to get a composition done by keeping a DOF Blur, so check out the result...
For the glowing Eyes I took seperated the Mesh and took the texture color information as light source with very very low Effiancy Scale.

Here some details of this Process:

I had to do 3 renderings in Indigo.

1) The main image with my models floating in the env_map Sphere, to have them illuminated also from the Bottom.

Image

2) A render_foreground_alpha pass, that surprisingly needed some time because of the DOF :/

Image


3) For the Shadows The main Scene together with an (totally) white ground plane was rendered, using render_region to keep Focus on the needed parts. I changed the model material to a 100% black diffuse mat to reduce rendertime, and tweaked the Render settings for less accuracy and higher max change.

Image

3.1) Because the most HDR Env Maps you'll find have not enough dynamic light Information even if the main and only light source is the Sun an image rendered using this env_map causes no hard shadow because the rest of the image lights the scene "to much" check the previous attempt on this composition here. To prevent this I used The HDRShop filter AbsHDR in Picternaut to reduce my env_map to the main light(s) and used this hdr_env_map for the shadow pass. Here my HDR env_map source.

Image

Image

4) finally I had to composite the background. Because the env_map gets totally blured by the DOF, I had to do a render of the BG without DOF Blur, what I did in C4D to save the time... Indigo takes way to long on simple light source rendering. then I rendered a Depth Pass in C4D to fit to the Indigo DOF and aplied a DOF Blur on the image using Photosop, based on the Depth pass.
Now the foreground is sharp, just as the Hunter model standing there.

Image

Image


5) Finaly for the composition in Photoshop I worked as long as possible in 32bit to be as accurate as possible regarding the blurred mask.
Some Post Produktion and tweaking still was necessary, because my final BG (an 8000x4000 LDR env_map) had another coloration than my camera tonemapped Indigo output...
Attachments
hunter_invasion_small.jpg
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Last edited by Zom-B on Wed Feb 13, 2008 10:00 pm, edited 5 times in total.
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jeffr
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Post by jeffr » Thu Jan 31, 2008 1:12 pm

Fantastic!!!!!
:shock: :D

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Post by Lord of the Rings Junkie » Thu Jan 31, 2008 4:14 pm

Since this is a composite, how did you do the shadows?

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Post by BbB » Thu Jan 31, 2008 8:47 pm

This one is looking very good. Much better than the last one.
- are the shadows taken into account when calculating the alpha mask?
- How did you manage to get rid of the outline around your models?

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wow

Post by EC20 » Thu Jan 31, 2008 9:33 pm

wow cool I hope you'll release the tutorial soon

thanks so much for the tutorial ! (it didn't load before so I couldn't see it)
Last edited by EC20 on Thu Jan 31, 2008 10:17 pm, edited 1 time in total.

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Post by Vanessa07 » Thu Jan 31, 2008 10:03 pm

Thx for the tut :D :D :D

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Zom-B
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Post by Zom-B » Thu Jan 31, 2008 10:17 pm

I just updated the first post with a description of the workflow...
A tutorial is in the Pipeline, but I don't want it to be quick & dirty ;-)

Now I'll upload the 1920x1080 image to the gallery...
BbB wrote:This one is looking very good. Much better than the last one.
- are the shadows taken into account when calculating the alpha mask?
- How did you manage to get rid of the outline around your models?
Thanks BbB...

- No, as you can see on the updated first post, shadows were done in a single pass, simply multiplied on the image in PS.

- Indigos alpha_region rendering is quite precise (except in DOF Blur situations). You have to use the same SS for the mask & the main image for the best result!
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OnoSendai
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Post by OnoSendai » Thu Jan 31, 2008 10:18 pm

Thanks for the very intersting tut ZomB, and great image.

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Post by BbB » Thu Jan 31, 2008 10:29 pm

Thanks for that - and for the great HDR resource!

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Post by pixie » Fri Feb 01, 2008 12:07 am

You're tha men! :-D

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Zom-B
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Post by Zom-B » Fri Feb 01, 2008 1:48 am

Thanks Guys...

Finally I managed it to upload the 1080p version to my Gallery.
Poorly on the big version you can see the Problem of the masked dof color transition... :/
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OnoSendai
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Post by OnoSendai » Fri Feb 01, 2008 2:05 am

The full image looks amazing :)

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Zom-B
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Post by Zom-B » Fri Feb 01, 2008 2:20 am

Thank you Ono... wouldn't be possible without your great work on Indigo :D

BTW: how can I "coss-link" my images from the gallery to be displayed in other categories without having 2 separate images for each rendering?

Is there something I can do, or is this possible by you Ono only?
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OnoSendai
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Post by OnoSendai » Fri Feb 01, 2008 2:25 am

I don't think it's possible at all.
Do you have an example of it?

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Post by Kram1032 » Fri Feb 01, 2008 2:48 am

Well done :D
Now, you can't see errors around the blending zones!
Highly realistic :D

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