Author Archives: bartwronski

Voigtlander Nokton Classic 40mm f1.4 M on Sony A7 Review

Posted on August 8, 2014 by bartwronski

As I promised, my delayed review of Voigtlander Nokton Classic 40mm f1.4 M used on Sony Alpha A7. First I’m going to explain some “mysterious” (lots of questions in the internet!) aspects of this lens. Why 40mm? So, first of all … Continue reading →

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Poisson disk/square sampling generator for rendering

Posted on August 8, 2014 by bartwronski

I have just submitted onto GitHub small new script – Poisson-like distribution sampling generator suited for various typical rendering scenarios. Unlike other small generators available it supports many sampling patterns – disk, disk with a central tap, square, repeating grid. It … Continue reading →

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Sony A7 review

Posted on July 31, 2014 by bartwronski

Introduction This is a new post for one of my favourite “off-topic” subjects – photography. I just recently (under 2 weeks ago) bought Sony A7 and wanted to share some my first impressions and write a mini review. Why did I … Continue reading →

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Hair rendering trick(s)

Posted on July 20, 2014 by bartwronski

I didn’t really plan to write this post as I’m quite busy preparing for Siggraph and enjoying awesome Montreal summer, but after 3 similar discussion with friends developers I realized that the simple hair rendering trick I used during the … Continue reading →

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C#/.NET graphics framework on GitHub + updates

Posted on June 8, 2014 by bartwronski

As I promised I posted my C#/.NET graphics framework (more about it and motivation behind it here) on GitHub:  This is my first GitHub submit ever and my first experience with Git, so there is possibility I didn’t do something properly … Continue reading →

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Coming back to film photography

Posted on June 8, 2014 by bartwronski

Yeah, finally I managed to go back to my past-time favourite hobby – film/analog photography that I started when I was 10 years old with following camera: Now I’m a bit older and my photo gear has changed as well … Continue reading →

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Runtime editor-console connection in The Witcher 2

Posted on May 13, 2014 by bartwronski

During Digital Dragons and tons of inspiring talks and discussions I’ve been asked by one Polish game developer (he and his team are doing quite cool early-access Steam economy/strategy game about space exploration programmes that you can check out here) to … Continue reading →

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Digital Dragons 2014 slides

Posted on May 9, 2014 by bartwronski

This Friday I gave a talk on Digital Dragons 2014. It was a presentation with tons of new, unpublished content and details about our: Global Illumination solution – full description of baking process, storing data in 2D textures and runtime application Temporal … Continue reading →

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Temporal supersampling pt. 2 – SSAO demonstration

Posted on April 27, 2014 by bartwronski

This weekend I’ve been working on my Digital Dragons 2014 presentation (a great Polish game developers conference I was invited to – if you will be somewhere around central Europe early May be sure to check it out) and finally got … Continue reading →

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C#/.NET graphics framework

Posted on April 10, 2014 by bartwronski

In my previous post about bokeh I promised that I will write a bit more about my simple C# graphics framework I use at home for prototyping various DX11 graphics effects. You can download its early version with demonstration of bokeh … Continue reading →

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Bokeh depth of field – going insane! part 1

Posted on April 7, 2014 by bartwronski

Recently I was working on console version depth of field suitable for gameplay – so simple, high quality effect, running with a decent performance on all target platforms and not eating big percent of budget. There are tons of publications about … Continue reading →

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GCN – two ways of latency hiding and wave occupancy

Posted on March 27, 2014 by bartwronski

I wanted to do another follow-up post to my GDC presentation, you can grab its slides here. I talked for quite long about shader occupancy concept, which is extremely important and allows to do some memory latency hiding. The question … Continue reading →

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GDC follow-up: Screenspace reflections filtering and up-sampling

Posted on March 23, 2014 by bartwronski

After GDC I’ve had some great questions and discussions about techniques we’ve used to filter and upsample the screenspace reflections to avoid flickering and edge artifacts. Special thanks here go to Angelo Pesce, who convinced me that our variation of … Continue reading →

Posted in Code / Graphics | 2 Comments

Temporal supersampling and antialiasing

Posted on March 15, 2014 by bartwronski

Aliasing problem Before I address temporal supersampling, just a quick reminder on what aliasing is. Aliasing is a problem that is very well defined in signal theory. According to the general sampling theorem we need to have our signal spectrum … Continue reading →

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My upcoming GDC 2014 presentation

Posted on March 9, 2014 by bartwronski

Ok, so GDC 2014 is coming up next week, are you excited? Because I am. 🙂  Thanks to the GDC Committee I will be giving a talk this year http://schedule.gdconf.com/session-id/826051 named “Assassin’s Creed IV – Road to Next-Gen Graphics”. As … Continue reading →

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Why big game studios (usually) use single main 3d software environment?

Posted on February 25, 2014 by bartwronski

Couple days ago a friend from smaller gamedev company asked me very interesting question – why while smaller companies allow freelancers some freedom choosing 3d software, big and AAA companies usually force people to learn and use one 3d environment? … Continue reading →

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Compare it!

Posted on February 5, 2014 by bartwronski

Cpt. Obvious I have some mixed feelings about the blog post I’m about to write. On the one hand, it is something obvious and rudimentary in graphics workflows, lots of graphics blogs use such techniques, but on the other hand, … Continue reading →

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The future of screenspace reflections

Posted on January 25, 2014 by bartwronski

Introduction The technique was first mentioned by Crytek among some of their improvements (like screenspace raytraced shadows) in their DirectX 11 game update for Crysis 2 [1] and then was mentioned in couple of their presentations, articles and talks. In … Continue reading →

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On pursuit of (good) free mathematics toolbox

Posted on January 19, 2014 by bartwronski

Introduction Mathematics are essential part of (almost?) any game programmers work. It was always especially important in work of graphics programmers – all this lovely linear algebra and analytic geometry! – but with more powerful hardware and more advanced GPU … Continue reading →

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My first visit to Cuba

Posted on January 5, 2014 by bartwronski

Welcome My first post is going to be more of a post just for myself – my practice with the wordpress and its layouts. To be honest I never did have a blog of any kind (well, except for a … Continue reading →

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