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Vue F.A.Q (Last Updated: 2024 Dec 30 8:14 pm)





 


Subject: L.D.R. Experiments----Maybe The Best Lighting For Vue 5 Beginners?

Veritas777 opened this issue on Nov 13, 2004 · 13 posts
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Veritas777 ( ) posted Sat, 13 November 2004 at 2:58 AM · edited Wed, 08 January 2025 at 7:05 PM

LDR (Low Dynamic Range)- the counterpart to HDR (High Dynamic Range). For Vue beginners using IBL- (Image Based Lighting)- this just might be the EASIEST form of lighting in Vue 5 to get quick and fast results!

Veritas777 ( ) posted Sat, 13 November 2004 at 3:01 AM

file_141065.jpg

Here is an LDR scene lit TOTALLY by just a single white square!- You can load this square by looking in the Vue 5 Bitmaps folder--- it's called "TileBump" (240 x 240).

Veritas777 ( ) posted Sat, 13 November 2004 at 3:05 AM

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Here's a Poser figure added to the scene- (the background is just a square mapped with a previously rendered scene- so YES, you can include your favorite skies, terrains, etc in an Image Based Lighting scene. And it will render VERY FAST!)

Veritas777 ( ) posted Sat, 13 November 2004 at 3:12 AM

Content Advisory! This message contains nudity

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Here's the problem that got me started with trying LDR instead of HDR for Poser figures (I also noticed that other people were posting overly BRIGHT or washed-out Poser figures...)

HDR is great for cars, buildings, etc.- BUT, for specifically Poser figures it can be TOO bright to work with and difficult to adjust. The white box on the bottom right is empty- but the HDR file I used was "SKIES"- the one found in your Vue 5 HDRI folder...

Veritas777 ( ) posted Sat, 13 November 2004 at 3:16 AM

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One of the things I tried was loading the background sky picture (which is a regular 24 bit Jpeg) and using that to light the image as an LDR file experiment...

Not bad, but still some overly bright high-lites to adjust...

Veritas777 ( ) posted Sat, 13 November 2004 at 3:22 AM

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So I went back and tried the initial LDR experiement of loading the white "TileBump" to see how it would look...

==A somewhat SOFTER and better looking Poser skintone- with less high-lite adjustment needed- but still some problems!

Veritas777 ( ) posted Sat, 13 November 2004 at 3:25 AM

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So I created my own 3" x 4" Medium-Gray tile and loaded that up as the source of LDR lighting.

Much better! A skintone that looks pretty nice with gray-scale values that aren't washed-out.

almck1@hotmail.com ( ) posted Sat, 13 November 2004 at 3:31 AM

Thats a great explanation Veritas. I'll try it out on my next render. Alex

Veritas777 ( ) posted Sat, 13 November 2004 at 3:33 AM

Content Advisory! This message contains nudity

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One FINAL experiment- I loaded up a tile that is normally used to create an underwater lighting effect- it has nice soft gray-scale tones, but with a bit of softer high-lites as well.

So- nice skin tone and nice natural high-lites too!

LDR gray-scale tiles are something to consider if you are creating Image Based Lighting scenes with Poser figures.
They are a FAST and EASY way to light your scenes with quick results even for a total beginner using Vue 5's new rendering options...

Ms_Outlaw ( ) posted Sat, 13 November 2004 at 4:17 AM

I tried this and see it's something I'll most likely use a lot. Thanks.

war2 ( ) posted Sat, 13 November 2004 at 4:20 AM

that last one is by far the best one and i totally agree ldr is sometimes quite preferable over hdri,anyhow ibl is great fun :)

StealthWorks ( ) posted Sat, 13 November 2004 at 7:47 AM

thanks for the tips - this open up a whole new range of possibilities for me. Just one question - how did you manage to keep the background in sharp focus - mine always is blurred. I know I have asked this question in a separate thread but you seem by far the most knowledgeable on HDRI in this group Veritas so I thought I'd ask you directly Thanks

Veritas777 ( ) posted Sat, 13 November 2004 at 2:30 PM

Attached Link: http://www.renderosity.com/messages.ez?ForumID=12368&Form.ShowMessage=2003211

See this thread for answer- and the advantages of using simple LDR lighting with a back plane prop...

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