I have queries #440

Hello!

I am a reviewer from open source organisation publiclab's project image-sequencer. This is an image manipulation lib which works in browser as well as node and CLI. This lib has different modules which are essentially image manipulation steps. Some of them are contrast, brightness etc. Then there are some complex ones like convolution, edge detect.

Heavy Processing

These modules have a pixel manipulation method which runs the same function on every pixel of an image(in serial on the cpu with pure js). This func is used for simple functions like brightness, contrast and channel manipulation. Then there is convolution which is a lot of processing and of course canny edge detection which times out the script. So I had some questions relating to these things:

1. Have I come to the right place? Can this lib help accelerate processing in the scenarios listed above?
2. Compatibility: I was playing around with this library on codepen and found that it was showing an error "cannot compile shaders" on an old ~3yrs win8 laptop with a radeon GPU. The same pen was compiling on my phone and working. The kernel is just a nerfed version of the 512by512 matrix mult demo on the website (it multiplies two 20by20 matrices). I can link the pen if needed. If there is an error like this, shouldn't it fallback to cpu mode? The cpu mode worked fine but in gpu mode, the shaders didn't compile.
3. Nodejs Support: When do you think a stable version of v2 will be available? Will this version be compatible with nodejs? Can the convolution be accelerated in nodejs?
4. PC slowing down: When I ran the texture mode benchmark on the website, it made the graphics driver on my old win7 pc(~5yrs old) unresponsive "The graphics driver was unresponsive and then recovered". This also made everything but the mouse cursor unresponsive on my new PC which is not even 1yr old and runs ubuntu 18.04(GT 1030, i5 7th gen, 8gb ram). Why does this happen? Is there a way to reduce load on the GPU? The saveOutputToTexture disabled mode did not make the browser/pc unresponsive but texture mode was 459 times faster than the cpu. The GPU only has 2gb graphics memory, is that the reason behind this ?

Thank You!