[Bf-compositor] GSoC: vector blur

[Ton Roosendaal]

Hi,

Gosh isn't that nice! The paper describes precisely the approach I used for Elephants Dream - one or two years earlier. I published that too. Probably a reason why the paper author makes no claims about having invented it. ;)

The approach I used is just not easy tileable - but that is not impossible either. Matter of good coding practices, experience and perseverance. Not a good GSoC project for a beginner.

The Blender vector blur approach could be also improved a lot (linear color, sampling, adaptive steps, filters, etc etc). But for that I rather see a student who knows what he/she talks about.

-Ton-

--------------------------------------------------------
Ton Roosendaal  -  ton at blender.org   -   www.blender.org
Chairman Blender Foundation - Producer Blender Institute
Entrepotdok 57A  -  1018AD Amsterdam  -  The Netherlands



On 26 Mar, 2014, at 21:53, Sean Kennedy wrote:

> R&H's tool had many options, and many of those options, when enabled, would break the blur. Blender's does seem to work quite as well, and not having options is kind of refreshing, hahaha... If it wasn't working and there were still no options, it'd be a different story.
> 
> Date: Wed, 26 Mar 2014 21:50:05 +0100
> From: j.bakker at atmind.nl
> To: bf-compositor at blender.org
> Subject: Re: [Bf-compositor] GSoC: vector blur
> 
> Hi!
> 
> I have read the whitepaper, but could not find the real difference with blender's vector blur. But should study it a bit more. We can really use the GSoC to get some dust of the Vector blur, as this node currently slows down the system the most.
> 
> I also think that the vector nodes are a bit scarce in Blender, but that is a different topic :) I really think the current Vector input node is not a Vector input node as you can only input vectors with the size of 1.
> 
> Jeroen.
> 
> On 03/26/2014 07:55 PM, Sean Kennedy wrote:
> Great! I used R&H's Pixmotor tool for years, and I was there on Garfield 2 when they first implemented it. I only know the compositing end of it, but it worked very well.
> 
> Always good to have compositing improvements!
> 
> I'm wondering if the ability to add motion blur to things animated in the compositor (using Transform, Translate, Scale, Rotation, etc) would be possible to bundle in with this. Perhaps being able to generate vectors from those nodes? Some kind of solution for 2D motion blur.
> 
> Just curious. :)
> 
> Sean
> 
> Date: Wed, 26 Mar 2014 19:51:15 +0100
> From: j.bakker at atmind.nl
> To: bf-compositor at blender.org
> Subject: [Bf-compositor] GSoC: vector blur
> 
> Hi All!
> 
> Just want to inform that there is a GSoC project for reimplementing the Vector Blur node. The project has been added by Elijah Caine McDade Voigt and is based on the next whitepaper http://www.neulander.org/work/sketch2007.pdf (site is currently down)
> 
> The whitepaper is based on the Vector blur node that has been used as internal tool by R&H (Garfield).
> 
> This project has not been accepted yet (process), but should be ok to be accepted.
> 
> Best regards, 
> Jeroen & Monique
> 
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