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With plums v1
With plums v1
Comments: 4
slepalex

28.03.2024, 19:18








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Stormy weather
Stormy weather

            

Stormy weather
Description: The image on the left make use of Horo's bluegrey moon hdr and a single radial light. The image on the right uses just radial lights. The skies were captured yesterday during a thunder storm. I've attempted to recreate some dramatic lighting. The scene you have seen before.
Added by: davidbrinnen
Keywords: davidbrinnen, bryce6.1, IBL, hdr, Horo, bluegrey, moon, sea, cliff, shore, storm
Date: 06.16.2007 22:48
Hits: 4785
Downloads: 95
Rating: 5.00 (1 Vote(s))
File size: 292.2 KB
Previous image: Stargate - Underwater Scene



Author: Comment:
tina gazcon
Member

Join Date: 08.07.2006
Comments: 254
*

You have some of the nicest skies I have seen so far. I'm not to sure about the water though. It looks more like mud. Is the sailboat supposed to be a toy? I like your concept. Ok I just read your description. Are the skies a picture you took? I am still not upto speed on all Bryce can do? I still think they are beautiful.
06.17.2007 00:26 Offline tina gazcon pecasg62 at hotmail.com
gat
Member

Join Date: 12.21.2006
Comments: 667
.

Like tina said water needs improvement, take a look at the water material that came with bryce, I think its called something like rocks under water.

The skies are amazing those are some real good photos and are perfect for this setting. The lighting in both is also perfect to match the sky. On the left even if everything is brighter you can see why due to the fact that there is an opening in the clouds, and the opposite for the right side. Did you look at the amount of light around you when you took the photos?
anyways, only water needs improvement, as far as I can tell. soft shadows are a must too on clouded scene, but it looks like you already did that, so nvm.
good job!
06.17.2007 00:43 Offline gat brshkv at yahoo.com
Horo
Admin

Join Date: 05.26.2004
Comments: 4721
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Those photographs are professionally set into the Bryce scene. The light to complement them is superb. The water is really not up to the scene. Particularly for dark water, we expect a lot of transparency. The waves and reflection play funny tricks on it. Also, the material on rocks in the water in the left picture need adjustment. Nevertheless, both scenes are very dramatic.

Now here's something to bring Rashad and gat to speed: there is no such thing a soft shadows in a sunlit environment. However, there are strong or subdued shadows or none at all. The left picture looks very real in this respect.
06.17.2007 06:38 Offline Horo h.-r.h.wernli at bluewin.ch https://www.horo.ch/
davidbrinnen
Admin

Join Date: 01.03.2004
Comments: 2224
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Thanks for the advice about the water. I will experiment further with that. The light when I took the photo's was even grey, but then so were the clouds, I boosted the contrast of the images with fade correction in PSP8. And so modified the lighting accordingly. I'm pleased you think they sky and the lighting match up so well.
06.17.2007 10:06 Offline davidbrinnen mail at davidbrinnen.co.uk http://www.davidbrinnen.com
gat
Member

Join Date: 12.21.2006
Comments: 667
.

Well Horo I have to bring you up to speed as well :P
There is no such thing as hard shadows, unless you are in space and even there due to the fact that sun is not a single point of light there be some soft shadows. On planet Earth the atmosphere with different layers of gases refracts the light all over the place, think sky dome.
So, even on the most clear day take a loot at a telephone pole as it goes out further the shadow becomes more blurry.

Also, on a sunny day a shadow from some distance will look sharp, but be lit by the sky, which will create a soft shadow inside the hard shadow (not the best way to say it, but it makes a point).
06.17.2007 20:24 Offline gat brshkv at yahoo.com
Horo
Admin

Join Date: 05.26.2004
Comments: 4721
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Gat - what you say is - of course - physically sound. The light scattering from the atmosphere does soften the transition between light and shadow, but not much, it more brightens up the shadow itself, that's what I meant with "subdued shadows". The sun takes about half a degree in the sky and this is not a point light source, we agree on that. However, compare 0.2 square degrees to 64'800 square degrees of the skydome, it is just a 3 millionth and for a simple chap like me that's peanuts. The nearer a light source (not a point source) to an object and the farther the object to a projection screen, the softer the transition between shadow and full light. Therefore, speaking Bryce, soft shadows make sense in a still life but much less in a sunlit outdoor scene. Again, speaking strictly physics, you're absolutely right - even in space, because a light source that is so far away that it can savely be considered a point light sources does not cast a shadow because the light reaching the object is too faint (excluding super novae).
06.17.2007 21:24 Offline Horo h.-r.h.wernli at bluewin.ch https://www.horo.ch/
davidbrinnen
Admin

Join Date: 01.03.2004
Comments: 2224
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If I can chip in my two pennorth. My argument against soft shadows stems from the purely practical consieration that they are too "expensive" in terms of render time compaired with using other approaches. In almost every instance where I've used soft shadows to being with I've abandoned them before the final render and resorted to using more light sources instead. I'm sorry I didn't mention this sooner, I intended too but often my comments get deactivated for reasons I don't know, and when I rewrite I forget things. And yes, I should copy the text first... but I forget to do that too!
06.17.2007 21:40 Offline davidbrinnen mail at davidbrinnen.co.uk http://www.davidbrinnen.com
gat
Member

Join Date: 12.21.2006
Comments: 667
.

I think we are all right at the same time, just in different situations.
06.17.2007 22:26 Offline gat brshkv at yahoo.com
davidbrinnen
Admin

Join Date: 01.03.2004
Comments: 2224
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Yes, each of your arguments is technically valid depending on which aspect of the problem you assign the greatest significance. For myself, as I said, time is the critical factor - more so now than ever since I am using IBL in many of my images. And finding ways around the limitations of the renderer often induce even greater overheads!
06.17.2007 22:48 Offline davidbrinnen mail at davidbrinnen.co.uk http://www.davidbrinnen.com
spektyr
Member

Join Date: 07.02.2005
Comments: 1010
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Rather than parrot comments already made I'll just say I love thos skies. You may think me weird but I just love a good storm. Fireworks of the Gods and all that. ;-)
06.18.2007 01:37 Offline spektyr spektyr at aol.com http://www.spektyr.com
GWYDION16
Member

Join Date: 04.06.2004
Comments: 99
david i like the pic

david i like the pic but i agreen with everyone including you please repost this pic with a diffrent water like you said ( will experment with the water ) about the water and i am hoping to see what you pic looks like after that i mean i do not have now a single pic that compare to yours manter infact i am suprosed i am even able to post pic here because everyone else dose such a great job and then coms me lol but i have to say i still want to see a repost of this work nice idea
06.18.2007 02:06 Offline GWYDION16 JohnParker16 at hotmail.com
rashadcarter1
Admin

Join Date: 06.04.2006
Comments: 2610
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What a great eye you have, in that you know when to photograph the sky. The integration of the sky is a tutorial you must prepare for me. Awesome. The ibl does a great job, and yes, the lighting matches up very well.

Since my name was mentioned I must say that I agree with gat that soft shadows a part of nature. In reality, there is no such thing as a point light source, therfore no such thing as a hard shadow. Light bulbs have filaments, shadped like strings. The sun itself has dimension and width, meaning that it is not a point light source, because a point has no dimensions. I agree with Horo that there are situations where the soft shadows are hardly noticable, but that does not mean that they are not there at all. Shadows decay based upon the length of the shadow itself, and on the dimensions of the eminating light source. Evening shadows are softer that noon shadows because they travel further before hitting the ground and therefore the edges soften more.
06.18.2007 11:34 Offline rashadcarter1 rashadcarter1 at aol.com
icecreamman
Member

Join Date: 05.18.2007
Comments: 130
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The sailboat looks a bit like a toy, but otherwise good work, glad you're still working on this image.
06.19.2007 22:14 Offline icecreamman jtemple032 at yahoo.com


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