Category Archives: Code / Graphics

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 →

Posted in Code / Graphics | Tagged algorithms, antialiasing, assassin's creed, graphics, graphics programming, next-gen, PlayStation 4, postprocessing, stochastic, supersampling, temporal, temporal supersampling, Xbox One | 8 Comments

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 →

Posted in Code / Graphics | Tagged .NET, C#, framework, graphics, graphics programming, programming, shaders | 13 Comments

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 →

Posted in Code / Graphics | Tagged bokeh, depth of field, dof, graphics, graphics programming, postprocessing, programming, the witcher 2: assassins of kings, witcher 2 | 25 Comments

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 →

Posted in Code / Graphics | Tagged assembler, GCN, GDC, GDC 2014, graphics, graphics programming, PlayStation 4, programming, Sony, Xbox One | 11 Comments

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 →

Posted in Code / Graphics | Tagged algorithms, antialiasing, assassin's creed, graphics, graphics programming, PlayStation 4, postprocessing, programming, stochastic, supersampling, temporal, temporal supersampling, Xbox One | 22 Comments

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 →

Posted in Code / Graphics | Tagged assassin's creed, GCN, GDC, GDC 2014, graphics, graphics programming, Microsoft, next-gen, PlayStation 4, Sony, Xbox One | Leave a comment

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 →

Posted in Code / Graphics | Tagged 3d software, 3ds max, blender, graphics, maya, photoshop, pipeline, technical art, tools | Leave a comment

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 →

Posted in Code / Graphics | Tagged algorithms, graphics, graphics programming, programming | 2 Comments

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 →

Posted in Code / Graphics | Tagged algorithms, assassin's creed, graphics, postprocessing, programming, raymarching, raytracing | 5 Comments

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 →

Posted in Code / Graphics | Tagged graphics programming, mathematica, mathematics, python, sublime text, winpython | 1 Comment