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Jason

Random link of interest

609 posts in this topic

Why use a external renderer? Why use Mantra? If you can do pathtracing inside Houdini's viewport...

http://vimeo.com/21436831

http://vimeo.com/22438117

I did a quick GI-style light test based on a similar algorithm to screen-space ambient occlusion in the Houdini viewport, which gets around 20fps along with SSAO, shadows & lighting on a Quadro 4000. It only does a single bounce, which is why the shadows aren't lit at all, and has a very limited radius of effect to avoid performance-killing texture oversampling. As it's a screen space algorithm, the backfaces of objects do not contribute either, making it a quick approximation.

In the image below, the first image is a viewport flip with this GI light, the second a viewport flip without it, and the third a default mantra render of the same scene (at a slightly different angle, unfortunately).

post-641-130672146205_thumb.png

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What is this Radiance gallery mean ?

Radiance was a renderer back in the 90's, and some of the scenes rendered in the first post in this thread can also be seen below.

http://www.3dzine.org/forum/forum_posts.asp?TID=208

http://radsite.lbl.gov/radiance/gallery/gallery.html

http://radsite.lbl.gov/radiance/

It was mainly used for architectural visualization with great lighting analysis capabilities.

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some nice info on the different types of fluid sim methods

http://www.fxguide.com/featured/the-science-of-fluid-sims/

I read it yesterday, I found it very useful, though it wasn't shocking I always tend to find new bits and pieces in these kind of articles, that I prior to reading it didn't know or didn't fully understand.

In general I find fxguide and fxphd very useful, they post interesting articles and feature awesome podcasts (I always have a selection on my iPhone on queue, in case I hit a traffic jam or something ;-), not to mention fxguide tv.

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I read it yesterday, I found it very useful, though it wasn't shocking I always tend to find new bits and pieces in these kind of articles, that I prior to reading it didn't know or didn't fully understand.

In general I find fxguide and fxphd very useful, they post interesting articles and feature awesome podcasts (I always have a selection on my iPhone on queue, in case I hit a traffic jam or something ;-), not to mention fxguide tv.

yes fxguide is a great site, i also always read/listen to their articles!

i'm actually pretty pleased that one of my videos is linked on the fluids article!

j

Edited by jason_slab

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After reading Eetu's experiments with his point based cluster procedural I went digging for those course notes.

( )

You can find the coursenotes here - I found the Production Volume Rendering Systems 2011 quite interesting. Might give that point procedural a go too :).

http://magnuswrenninge.com/productionvolumerendering

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VI and VIM is used a lot for code and shader writing, how about an interactive VIM tutorial?

http://www.openvim.com/tutorial.html

Priceless! I always found vim a bit scary, I had no idea of the command mode (=awesome). I find it rather techy, how ever I can imagine if your used to this you can code very fast and efficiently. Very useful link, thanks!

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Priceless! I always found vim a bit scary...

I have tried it a few times, but I can't get my artsy head to work with it...

I really like this interactive method for teaching, just like Code Academy.

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