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silver_shadow

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Reply with quote  #1 

I wonder if this is possible if one can make a slider, maybe call it focal blur, yo ucan slide it and the amound of background gets blurred, like the fog slider, but only blur. Would be awesome and unique tool for close ups ect.

TBD

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Reply with quote  #2 
I think this is most a post processing feature that works better in 2D space than in 3D.
also how to determine what is background and what is central focus ?

silver_shadow

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Reply with quote  #3 

yea i know. But i would be cool if one could use the fog tool, and use that as a blur mask in, so you can control how much foregrounf and background gets affected. The pees here are utmost JUST for podium, those who cannot work photoshop, hates it, so why cant we try to incorporate fine tune features in podium lol. Have a thought, maybe its something reallly cool.

solo75080

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Reply with quote  #4 
Fog is possible....I was gonna do a tutorial then life got in the way, if there is not an easier way on the next release I will try figure out my process again and post tutorial.


By solo75080 at 2007-03-31

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JChapinCP

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Reply with quote  #5 
sounds like someone is looking for a depth of field control like adjusting the f-stop on a camera. I think that would be fantastic.

Granted I am not a programmer and admittedly know nothing of the dynamics behind the podium engine. But perhaps a standard could be set up given that  from any camera point distances to a subject can be obtained assuming you built the model to some scale. Perhaps at f2.8 everything beyond say X distance starts to blur. Or on the contrary at f22 everything in the camera's viewfinder is sharp.

If not there is always the post process method

Cheers
Joel


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Jakerlund

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Reply with quote  #6 
Bringing this old thread up again
Any chance of DOF control going to happen in Podium?
It is often that extra that makes the wow in a picture.

bigstick

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Reply with quote  #7 
Not any time soon I'm afraid.
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michaliszissiou

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Reply with quote  #8 
http://supodiumforum.websitetoolbox.com/post?id=4052743
Here's your "extra".
A wish for v2? A depth mask is the best because you can handle it in PP. Its better for animation too, most video editors can handle these depth masks. 
Jakerlund

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Reply with quote  #9 
michaliszissiou, i tested the DOF mask yesterday on a scene which was diagonal in depth and got a little weird result.
Blur in PS/Lensblur with that DOF mask as channel occurred on details closer to the camera.
Since the Lens blur in PS use white to black from the DOF mask to mask what should/shouldn't be blurred it can make objects closer but has shadows to be blurred while other object further back which are brighter to have less blur.

I'll try to duplicate such a scene and attach it here, maybe i'm just doing it all wrong

I have Cheetah 3D and you can set camera DOF before render there, it's very handy instead of having to go the whole mask/PS route each time.
On the other hand, i'm useless modeling in Cheetah or any traditional 3D program.
michaliszissiou

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Reply with quote  #10 
Quote:
Blur in PS/Lensblur with that DOF mask as channel occurred on details closer to the camera.

There is a slider in this Ps filter, "blur focal distance" 
The trick is to play with the fog effect.
You may want to use two fog masks, thats more complicated but easier to customize DOF. 
Jakerlund

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Reply with quote  #11 
Thanks for the tips

I got the result i was aiming for with a diagonal DOF scene and your tutorial for creating a DOF mask.
I only used one fog mask on this one but it looks right.







michaliszissiou

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Reply with quote  #12 
Try something more dramatic, its a test after all. Play with fog sliders. 
I also used one DOF mask here:
musliadiadnan

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Reply with quote  #13 
orait1!!

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rdefranco

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Reply with quote  #14 
To re-oped the depth of field discussion again-  Post processing is too tedious- As an architect I can't redo an hour of processing each time I re-render a scene to show design changes. A scene does not look realistic when the edges of a back ground object are as crisp as the edges of objects in the main part of the scene.  That's not the way the eye (or a camera works). Sometimes its easyto blur a few areas of the backgrouns to help but in many of my scenes there are too many foreground edjes to cut around and the processing is obvious.  Some kind of depth blur would be really nice. May you could use the antialiasing phase to do this.  "points farther from the eye  are softened with a greather aperture"?


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bigstick

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Reply with quote  #15 
Actually I don't think you are quite right here. Post-processing shouldn't take an hour at all. If that's how long you are spending, you haven't set up your render well enough, or you are just being meticulous about the effect you want to achieve.

I suspect that focal blur in Podium would actually take longer. It wouldn't be interactive, and you would have to keep rendering if you didn't get the right results first time. Also if you get it wrong, your image is potentially wasted.

I'm an architect not a professional visualised, and I understand your point about time. However if you compare the render time for a high quality image (maybe up to a couple of hours) with just 5 minutes in an image editor where you can interactively play with the effect and I think it's a simple decision overall.

We could possibly implement support for depth maps though...

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