Forum Moderators: wheatpenny, TheBryster
Vue F.A.Q (Last Updated: 2024 Oct 26 8:50 am)
The evironeent maps Vue used are HDRI files. They are different from a standard image file taken from a camera. They are 32bit images that store accurate informations about lighting. You can save your Vue renders in this format for future use, but you'll need to make them panoramic to get accurate lighting & reflections.
ive tried that but when a pic loads no matter what size, it renders zoomed up and/or stretched vertically is there a vim directory where i can download some or a prog that will make vim for me from my pics
ive got that vim file of the park from renderosity and that works fine its a jpeg thats about 80 megs that works perfect but others ive tried including the sphere types are just zoomed in and look naff
k got that, and does seem to do the effect i need, but still when loading into vue as environment the zoomed up effect, what am i missing or is it not possible at all, ive read that normal pics are not best to use because vue cant tell difference between an actual light source and a piece of paper as theres not enough info in the picture, something like that, so a hdri has to be created from about 3 dif pics of dif exposures, ok ive done that and merged them as hdri but still zoomed weird effect.
heeelp?
Believe it or not, the environmental lighting for just 8-Bit images works REALLY well in Vue5Inf (can't vouch for any of the lower versions).
When importing an image, since it's just a sky, when ckeck the box tomake sure it only applies to the top half of the environment - no stretching! This sounds like your problem described above.
Good luck - hope this helps!
-Lew ;-)
yeah i can do the panaramic version, but when i import the pictore in its zoomed into a small part of the pic, looks all bent and grainy and theres no floor if you know what i mean, i need a prog that will create the same pics or hdri like the park jpg
like this one
http://www.renderosity.com/mod/freestuff/index.php?section_id=51
Zoomed, bent, and grainy - did you take a full panoramic with even high skies, or just a few shots along the horizon?
If you take and put together a full 360 degrees of pictures - including higher skies - it won't be stretched and if you've got a higher res digital camera to work with (5MP or better) than it won't/shouldn't be grainy enough to notice.
If you only took a couple of shots of the horizon, think about it - it has to stretch upwards and to the sides to evenly cover the underside of a perfect shpere - or for just upper hemisphere the underside of 1/2 of the sphere. Either way, if there's not enough info it will stretch all the pixels unevenly and add grain in the process.
Yeah, this requires more than a bit of work in PS.
You can take panoramic shots (multiple images - then stitch them together so it's seemless) or just take a whole bunch of images of sky and clouds and put them together like this one attached where I pretty much made "brushes" out of a number of cloud images, and made my own blue sky for them to be in.
Start taking pics of clouds and skies in general and toy around in PS.
Does this help?
-Lew ;-)
I have read up some on HDRI light probe, HDRI Shop, etc. I understand that you need different exposure images to combine into a single HDRI image. Partly what I want to fo is to make some environment maps or ever light probes for other software (Like my C4D R8)
Okay, I have my old copy Vue 4 DESPrit. I notice i can do 360 degree panoramas. I also notice that there is an exposure setting in the light control panel. THe setting is normal by default, but can go 2 stops under or 2 stops over exposed. There are also some ambient light mixing controls that are a part of this. So... is there anything to gain by making 3 renders (Normal, +2 stops, and -2 stops) and combining them together in HDRI Shop (or PS CS2) to make an HDRI light probe image for use in other applications? If need be I can ever sety up a mirrored sphere and use the virtual camera to make my exposures as well (like what is done with real HDRI light probes.) Not sure if there is any advantage there either.
I know this will not be the exact same as a real world HDRI light probe, but would it be close enough in some way that it is worth doing.
BTW, I have done the panoramic thing with a single normal exposure render and used it as a JPEG (LDRI) envirenment map in C4D and it seem to work pretty good (transparent, reflection,s radiosity, etc.) What might I gain by going with a higher dynamic range image for lighting?
Attached is a sample render in C4D with a "environment" made from a single normal exposure render in Vue 4 DES. BTW, I use a black and whire version of the enviroment for the GI lighting and color version for the raytraced reflections and background. Otherwise the image tends to render blue from the sky color.
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as the titles say how do i use my own pics for the environment mapping, ive serached but not found anything
like the city atmosphere included in vue, is there a way to convert my own camera pics to work same way
please help anyone