Messages

1

Graphics / Re: Most efficient way of rendering pixel by pixel?

« on: November 01, 2018, 01:50:20 pm »

It was a caching issue apparently. Storing the pixels in the array row wise instead of line wise seems to have fixed it.

2

Graphics / Re: Most efficient way of rendering pixel by pixel?

« on: October 31, 2018, 06:24:41 pm »

Thanks! with Texture.update() i get about 10-15 more fps.

3

Graphics / Most efficient way of rendering pixel by pixel?

« on: October 31, 2018, 05:44:26 pm »

Hi,
I'm making a simple raycasting engine and I'd like to change the color of each pixel individually but the problem is that I haven't been able to find a method of doing it efficiently. I've tried using an Uint8 array:

 sf::Uint8 *canvas= new sf::Uint8[SCREEN_H*SCREEN_W*4];  

that I pass to an sf::Image after it's ready to be displayed. The problem is that accessing arrays this big seems to be quite slow which results in about 40 fps at 1280*720. Are there any better methods of drawing a pixel by pixel image to the window?
Thanks!