Tag Archives: graphics programming

Fixing screen-space deferred decals

Posted on March 12, 2015 by bartwronski

Screen-space deferred decals are a very popular technique. There were so many presentations and blog posts about it that I will just list couple of them (just a first google search results page to be honest…) in no particular order: … Continue reading →

Posted in Code / Graphics | Tagged algorithms, decal, decals, deferred, graphics, graphics programming, rendering bugs, screen-space, the witcher 2: assassins of kings | 5 Comments

Anamorphic lens flares and visual effects

Posted on March 9, 2015 by bartwronski

Introduction There are no visual effects that are more controversial than various lens and sensor effects. Lens flares, bloom, dirty lens, chromatic aberrations… All of those have their lovers and haters. Couple years ago many games used cheap pseudo HDR effect … Continue reading →

Posted in Code / Graphics | Tagged algorithms, anamorphic, bokeh, C#, cinematography, depth of field, film, flares, graphics, graphics programming, history, lens, movies, photography, postprocessing, programming | 16 Comments

Designing a next-generation post-effects pipeline

Posted on December 9, 2014 by bartwronski

Hey, it’s been a while since my last post. Today I will focus on topic of post-effects. Specifically, I wanted to talk about next-gen post process pipeline and redesign I worked on while being a part of Far Cry 4 rendering team. … Continue reading →

Posted in Code / Graphics | Tagged 1080p, algorithms, bokeh, depth of field, far cry 4, graphics, graphics programming, photography, PlayStation 4, postprocessing, programming, tonemapping, Xbox One | 6 Comments

CSharpRenderer Framework update

Posted on October 18, 2014 by bartwronski

In couple days I’m saying goodbye to my big desktop PC for several next weeks (relocation), so time to commit some stuff to my CSharpRenderer GitHub repository that was waiting for it for way too long. 🙂 Startup time optimizations … Continue reading →

Posted in Code / Graphics | Tagged .NET, C#, framework, graphics, graphics programming, postprocessing, programming, tools | 15 Comments

New debugging options in CSharpRenderer framework

Posted on September 14, 2014 by bartwronski

Hi, minor update to my C#/.NET graphics rendering framework / playground got just submitted to GitHub. I implemented following new features: Surface debugging snapshots One of commentators asked me how to easily display for debug SSAO buffer – I had no easy … Continue reading →

Posted in Code / Graphics | Tagged .NET, C#, framework, github, graphics, graphics programming | 4 Comments

Updated Poisson-like generator with GUI and more

Posted on September 5, 2014 by bartwronski

Just a super short note: I updated my simple rendering-oriented Poisson-like pattern generator with: Very simple GUI made in PyQt to make experimenting easier. Option to do rotating disk (with minimizing rotated point distance) for things like Poisson bokeh / … Continue reading →

Posted in Code / Graphics | Tagged algorithms, Anaconda, antialiasing, graphics programming, mathematica, poisson, programming, pyqt, python, stochastic | Leave a comment

Major C#/.NET graphics framework update + volumetric fog code!

Posted on August 20, 2014 by bartwronski

As I already promised too many times, here comes major CSharpRenderer framework update! As always, all code available on GitHub. Note that the goal is still the same – not to write most beautiful or fast code, but to provide a … Continue reading →

Posted in Code / Graphics | Tagged .NET, algorithms, C#, graphics, graphics programming, postprocessing, supersampling, temporal, temporal supersampling | 18 Comments

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 →

Posted in Code / Graphics | Tagged algorithms, antialiasing, graphics, graphics programming, the witcher 2: assassins of kings, witcher 2 | 7 Comments

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 →

Posted in Code / Graphics | Tagged .NET, algorithms, antialiasing, C#, graphics, graphics programming | Leave a comment

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 →

Posted in Code / Graphics | Tagged assassin's creed, graphics, graphics programming, PlayStation 4, postprocessing, programming, Xbox One | 2 Comments

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

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

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

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