Tag Archives: photography

Separable disk-like depth of field

Posted on August 6, 2017 by bartwronski

This is a short note accompanying shadertoy: https://www.shadertoy.com/view/lsBBWy . It is direct implementation of “Circularly symmetric convolution and lens blur” by Olli Niemitalo (no innovation on my side, just a toy implementation) and got inspired by Kleber Garcia’s Siggraph 2017 presentation “Circular … Continue reading →

Posted in Code / Graphics | Tagged bokeh, depth of field, dof, far cry 4, Gaussian, maths, photography, poisson, postprocessing, separable, witcher 2 | 2 Comments

Localized tonemapping – is global exposure and global tonemapping operator enough for video games?

Posted on August 29, 2016 by bartwronski

In this blog post, I wanted to address something that I was thinking about for many years – since starting working on rendering in video games and with HDR workflows and having experience with various photographic techniques. For the title … Continue reading →

Posted in Code / Graphics, Travel / Photography | Tagged exposure, film, God of War, graphics, graphics programming, photography, photos, postprocessing, tonemapping | 19 Comments

White balance and physically based rendering pipelines. Part 2 – practical problems.

Posted on October 14, 2015 by bartwronski

White balance and lighting conditions After this long introduction (be sure to check part one if you haven’t!), we can finally go to the problem that started whole idea for this post (as in my opinion it is unsolved problem – … Continue reading →

Posted in Code / Graphics, Travel / Photography | Tagged assassin's creed, color management, graphics, graphics programming, IBL, ideas, image based lighting, panoramas, PBR, photogrammetry, photography, physically-based shading, srgb, the witcher 2: assassins of kings, white balance, witcher 2 | 7 Comments

White balance and physically based rendering pipelines. Part 1 – introduction.

Posted on October 14, 2015 by bartwronski

This is part one of the whole article. Part two is here. In this two posts (started as one, but I had to split it to make it more… digestible) I’m going to talk a bit about the white balance. First … Continue reading →

Posted in Code / Graphics, Travel / Photography | Tagged color management, digital cameras, film, graphics, graphics programming, PBR, photography, physically-based shading, rendering, srgb, white balance | 3 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

Processing scanned/DSLR photos of film negatives in Lightroom

Posted on February 19, 2015 by bartwronski

The topic I wanted to cover in this post is non-destructive workflow for “developing” photographed or scanned negatives – in this case B&W film. Why even bother about film? Because I still love analog photos as a hobby. 🙂 I wrote … Continue reading →

Posted in Travel / Photography | Tagged 35mm, adobe, analog, film, graphics, Lightroom, medium format, photography, photoshop, scanning, Voigtlander | 5 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

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 →

Posted in Travel / Photography | Tagged 40mm, A7, Alpha 7, f/1.4, Lightroom, Nokton, optics, photography, photos, Sony, travel, Voigtlander | 15 Comments

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 →

Posted in Travel / Photography | Tagged A7, Alpha 7, DSLR, Fuji, mirrorless, Nikon, photography, photos, review, Sony, travel, Voigtlander | 2 Comments

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 →

Posted in Travel / Photography | Tagged 645, B&W, black & white, film, fuji x100, mamiya, photography | 1 Comment