Sand Castles

Started by moodflow, November 24, 2008, 01:08:23 pm

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mr-miley

For those too young to remember, a 386sx was the first PC I used. I think it had a huge 100mb HDD, but no floating maths co-processor  >:( Ahh, those were the days
I love the smell of caffine in the morning

Marcos Silveira

WOW!!!! :o I love your sand formations!!!! About the "castles", they seem to be very tall/high (what is the exact word?). I'm really "into" your story and like to think it's 15.000.000 years in the future in the place where we can find now the Amazon Forest!!!! heheheh :D OK, TUTORIAL!!!! TUTORIAL!!!! TUTORIAL!!!! TUTORIAL!!!! TUTORIAL!!!! TUTORIAL!!!!

moodflow

I may whip up a tutorial on this one of these days.  I've been testing the image projection horizon matching, and it works well in some cases, and horrible in others...
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Marcos Silveira

I'm soooo waiting for it!!! ;D

Volker Harun

A very pleasing scene. I like the contrast of wild clouds and calm sands.

Love it! Good work ,-)

Volker

crisady

Very good work.
I like the mood of it, and the sand look amazing.  :o
Maybe a little bit contrast would help the image.

fferro

Quote from: moodflow on November 24, 2008, 01:08:23 pm...image projected "sand" for the flats...


Could you please tell me how to project an imagen (taken from the same point of view of the virtual camera) over a heightfield?
I don`t know where to connect it and with which projection .
Thanks
Fernando

moodflow

You'll need an image or photo with the horizon visible.  Then setup a TG2 scene with a similar camera angle.  Use the image map shader with image projection selected and use the image with the horizon visible and manually match the horizon to the TG2 scene's horizon.

It works best if the image you use doesn't have much (or any) atmospheric effects like haze or fog, since this will be applied by TG2.

Hopefully that explains it enough.  I'll see if I can attach an image explaining the process better.
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moodflow

March 14, 2009, 07:46:01 pm #38 Last Edit: March 14, 2009, 07:48:01 pm by moodflow
OK, was able to whip up a quick and low resolution test to show whats going on.  Its just a trick of perspective really.

See the images below and the attached .tgd

The "base image" is a photograph I took.  Notice how I aligned the horizon in TG2 to the horizon in the photo by simply moving the camera around.  As stated, the results in this example are low resolution...simply use a high resolution photo to increase detail.  You can even add displacements with different textures, etc, which is what I did on Sand Castles.

8)
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rcallicotte

How did I miss this?  Sand castles image is awesome.  I love those sand castles.  That's what I want to know - how did you make the castles?
So this is Disney World.  Can we live here?

moodflow

Quote from: calico on March 14, 2009, 10:30:46 pm
How did I miss this?  Sand castles image is awesome.  I love those sand castles.  That's what I want to know - how did you make the castles?


Inverted crater shader displaced with a warp shader.  ;-)
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fuzzyEuclid

That's really a fantastic image! I believe I understand the projection technique, but displacing an inverted crater is confusing this humble newbie. I can't seem to get the inverted crater to do any #&#$* thing. Falling flat on my face after figuring out how to get those grass clump objects to flourish (in green!) across my landscapes.... So if you were to do a tutorial, or simply feel like exercising your typing skills for a few sentences, I would be greatly interested in the engineering of this magical act. Just thinking out loud ;D

Sen

Wonderful sandcastles. Cool texture and structure of course. But. LOVE the clouds - did you postwork them?

moodflow

Quote from: Sen on March 26, 2009, 09:04:33 pm
Wonderful sandcastles. Cool texture and structure of course. But. LOVE the clouds - did you postwork them?


No post work on the clouds.   :)
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