I am working with an HTML canvas blown up 32x its pixel width and height. When I draw lines on it, however, I notice that the edge pixels of lines are drawn semi-transparently (exactly half transparent). Is there a way to stop this?  In this picture,...
I'm trying to use blur.js to create a blur effect on my site so you can see the site background behind the content. However, it appears to be trying to access an image called "none."  Here is the output from the chrome javascript log:  $(...
I'm new to threejs and I'm trying to make a simple 3d model. Nevertheless, I've got some transparency / disparition issue since I've started to play with opacity.  the important part of my code, is here:      var cylJaun = new THREE.M...
In html5, when you draw to a canvas using putImageData(), if some of the pixels you are drawing are transparent (or semi-transparent), how do you keep old pixels in the canvas unaffected?  example:  var imgData = context.createImageData(30,30); for(v...
Is there a way to read transparent pixels from a picture using javascript?   I think, that it could be something similar to what PNG fixes does for IE (reading transparent pixels and applying some stuff, lol). But yes, for every browser..  Ah, would...
What is the best way to make something like a mask with rounded corners for an image using CSS/JS/HTML? So, I need to add rounded corners to a rectangle image. I thought about adding 4 graphic elements like this one  above the image at its corners to...
I got this situation which is hard for me to search on Google and explain.  Our company prints photos on aluminium and we give our customers two choices.   The first choice is to print their pictures on aluminium just like they gave the picture to us...
I have a Pardot (Salesforce) form displayed in an iframe and control over the markup and scripts on both domains.  The form has a transparent background and sometimes the parent page's background photo or color does not have enough contrast with...
Is it possible to create partially transparent elements on the fly in canvas? Currently I'm setting the whole canvas element's opacity in CSS, but I want to some elements to be more visible then others.  Nothing I've found so far indicate...
Is it possible in javascript to superimpose a transparent-background image upon another image? Let's say you have a website with a bunch of product pictures, gizmos and widgets and thingamajigs, and some of these products have been recalled by th...

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