Questions tagged [efficiency]
The efficiency tag has no usage guidance.
7
questions
1
vote
0answers
48 views
"Interleaved rendering" in fragment shader
Intro
I'm trying to render multi-channel images (more than 4 channels, for the purposes of feeding it to a Neural Network). Since OpenGL doesn't support it natively, I have multiple 4-channel render ...
1
vote
1answer
77 views
Is it possible to decode and play e.g. 60fps video as 30fps, if computer is too slow for 60fps?
I am wondering this, as e.g. YouTube offers some videos 60fps, but computer may be too slow to play them.
2
votes
1answer
753 views
Floating Point Operations in Line Drawing Algorithms
When it comes to line drawing, DDA is the simplest and most intuitive algorithm, the core idea being:
compute the slope of the line
for every increment in x, increment y by the slope
However, DDA is ...
5
votes
1answer
703 views
Efficiently rendering sprites
In order to naïvely render sprites, you can send single rectangles with their position, rotation, size, and texture. This is very easy, but given that reducing state changes, draw calls, and data ...
7
votes
1answer
121 views
Cost of parameter passing in webgl pixel shaders?
In a webgl pixel shader, all functions are inlined as i understand it, however you can have parameters that are marked as in versus being inout meaning that their value can change but the value won't ...
6
votes
2answers
889 views
MSI GTX 950 2GD5T triangles per second
A friend got an MSI GTX 950 2GD5T graphics card for xmas.
I said "yeah, graphics cards are super fast now, that thing probably processes 2 billion triangles per second". Then I tried to look it up to ...
6
votes
1answer
595 views
Speeding up convergence: am I reinventing the wheel?
I'm trying to learn about raytracing by implementing things in Python 3. I know this is always going to be slower than something like C++, and I know the speed could also be improved by using GPU ...
