Zigster opened this issue on Jul 24, 2002 ยท 7 posts
Zigster posted Wed, 24 July 2002 at 4:17 AM
I have been trying to get a nice DOV for my renders but i just cant seem to get it right. I have little idea at what value to set the lense radius. the default setting (i think its 0.1) is way too blurry, and trying out different possiblities have taken me hours without satisfying results. Can you give me an idea at what range to set lense radius? Thanks in advance Zigster
FWTempest posted Wed, 24 July 2002 at 4:28 AM
Attached Link: http://www.renderosity.com/messages.ez?ForumID=107&Form.ShowMessage=783641
what ended up working best for me when I was trying to figure this out was to use the button to set the focal length to whatever object I had selected to be in focus. Then I would adjust the lens radius slightly lower than default to bring nearer/farther objects into focus, and higher to blur them more. In the image at the link, I had the focal length set to second sphere from the camera, and I think the lens radius is at .07 or .06 It was a while back and I'm not at my computer at the moment, but I think that's right. hope that helps a littlewozzyke posted Wed, 24 July 2002 at 8:19 AM
you couls try the set to current selection option. then the selected models will be fine and the rest of the scene will be blurred. maybe thats what you need
Zigster posted Wed, 24 July 2002 at 8:34 AM
Thanks for the responses.
My biggest problem didnt seem to be in the lense radius but especially in the distance from the cam to the ground (working on a high altitude picture, focussing on a skydiver). Bringing back the camera to a lower level and scaling my groundplane down (because i want to keep the sense of high altitude) seem to have helped. I was working with the radius in the range of 0,2 to 0,6 so i wasnt that far off :-).
Now to find an suit on which i can texture a skydiversuit :/. Browse ahoy!!!
cheers!!
Zigster
Zigster posted Wed, 24 July 2002 at 8:51 AM
edit: for lens radius i meant 0.02 to 0.06 offcourse .. soz :-)
cobalt posted Wed, 24 July 2002 at 1:01 PM
Something that works for me: I tend to regard the DOV setting on the bryce camera as the kind of zoom lens you'd get on a real-world camera. My usual method is to physically place the camera object into the approximate location on the model that I want to "shoot" from, and then ajust the DOV setting until I have my shot "framed" properly. Thinging of the bryce worldspace as a little minature movie set, and anything placed into it as a set or a piece of scenery really helps with the thinking (at least for me) on setting lights and cameras.
Zigster posted Thu, 25 July 2002 at 1:54 AM
My biggest confusion at the beginning of the radius puzzle was that when you increase the radius, all things out of focus get blurred. I misinterpreted lens radius to be the radius from the arc the lens made to the centre of that arc. Logically the bigger the radius, the smoother (? is that the right expression ?) the curve of the lens the less out-of-focus blur. Seems it doent work that way :-), I now interpret the radius to be the thickness of the lens. I don't know if that is correct but it works for me. cobalt: I usually think along those lines as well, its just in the render i was trying o make I wanted to look like i was shooting a landscape from great hight (like 4000-5000 feet, just before the skydiver has to pull his pilotchute) so in that case the movieset gets a little huge and goes off-budget ;-). Cheers, Zigster.