Programmer Humor

34811 readers

284 users here now

Post funny things about programming here! (Or just rant about your favourite programming language.)

Rules:

Posts must be relevant to programming, programmers, or computer science.
No NSFW content.
Jokes must be in good taste. No hate speech, bigotry, etc.

founded 5 years ago

MODERATORS

[email protected]

223

Why indeed (lemmy.ml)

submitted 2 weeks ago by [email protected] to c/[email protected]

65 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 2 points 2 weeks ago (1 children)

In practice, that cost of rendering the vectors vs images is negligible because rendering a raster image isn't free either. Especially, if you're going to package large images in your app.

[–] [email protected] 1 points 2 weeks ago (1 children)

Raster images do not need to be rendered - see Rendering:

Rendering is the process of generating a photorealistic or non-photorealistic image from input data such as 3D models...Today, to "render" commonly means to generate an image or video from a precise description (often created by an artist) using a computer program.

Note that "render" is a fairly generic term, and it is sometimes used like "render to the screen," to just mean to display something. Rasterisation may be a better term to use here, since it only applies to vector graphics, and is the part of the process I am referring to.

In any case, except for possibly reading fewer bytes from disk, the vector case includes all the same compute and memory cost as the raster image - it just has added overhead to compute the bitmap. On modern hardware, this doesn't take terribly long, but it does mean we're using more compute just to launch/load things.

[–] [email protected] -1 points 2 weeks ago

I meant render in a sense of displaying the encoded data as pixels on the screen. I understand how different kinds of rendering work. My point is that reading and displaying image data isn't free. It can be cheaper than drawing vectors, but there is still a cost and it grows with the size of the image. Images also end up eating up more memory as a rule.