Show HN: Polarr.co, a WebGL photo editor

Post by jarun » Tue, Oct 28, 2014, 9:56 AM UTC

jawngee wrote: post #41

I hate to shit on your parade because this is pretty dope, but the title is disingenuous at best. But I use Lightroom every day, and you might be faster but you aren't working at the same level of quality. I loaded up a 16-bit TIFF and got an 8-bit JPEG as a result, which leads me to assume that you are downsampling to 8-bit to work. Also, the results in polarr are way harsher then Lightroom, which is pretty common f…

Post by patrick73 » Tue, Oct 28, 2014, 8:42 PM UTC

bitL wrote: post #48

patrick73 wrote: post #42

Earlier quoted context omitted.

with WebGL?

WebGL textures suffer from the same problem as shaders can be used to extract data. WebGL is hence using CORS as well. Do you say the performance penalty in WebGL is non-existing contrary to canvas?

Post by pedrocr » Tue, Oct 28, 2014, 11:12 PM UTC

bwang29 wrote: post #40

twombly wrote: post #21

Earlier quoted context omitted.

Have you thought about compiling dcraw to javascript with emscripten? I'm not sure what the performance would be like, but I've seen this work in the past.

We tried it. It works with modification to emscripten and compiled code. Performance is acceptable and I think there is a much larger space using GPU to do the decoding as well. But I think the user won't just want to edit the thumbnail though I think many of them didn't know that.

Post by patrick73 » Wed, Oct 29, 2014, 1:45 PM UTC

bitL wrote: post #96

patrick73 wrote: post #93

Earlier quoted context omitted.

what data do you want to extract?, all postprocessing effects are made with GLSL shaders, you don't process data with javascript algorithms.

Just the call on getImageData to extract texture and read all pixels from an image can take 15s if CORS is in the play...

Post by ryanmaclean » Thu, Oct 30, 2014, 5:59 PM UTC

bwang29 wrote: post #74

ryanmaclean wrote: post #65

This is an awesome idea. I think what people might be missing is that even with the features you currently have, there's a market for this application already, though maybe not as a stand-alone lightroom replacement. If you think about batching, my brain immediately starts gravitating towards real estate, headshots, HS seniors photos, ENG. In short: drop the filters, put the "basic" controls on the left, focus on wha…

Make sure you signup so that you can receive our mailing list, we're building a basic "editor-less" mode for Polarr right now.