Skip to main content
gamedev.net
🔒 Locked

one pixel readback

Started by edwinnie 1 reply 700+ views
Original Post
edwinnie
edwinnie
hey guys! jus wondering if anyone tried to do a one pixel readback every frame, and note that performance changes. juz wondering how did it went? thx! edwinz
nihilisticod
nihilisticod
I readback several pixels every frame, to check if certain things are visible for post-rendering effects. So i guess im reading a single byte back, not 3. I have not noted any framerate drop, but I also have not tested for it exclusively. I read 10-15 and its not a problem.
edwinnie
edwinnie
ok i see
thx!

Topic Locked

This topic has been locked by a moderator. New replies are not allowed.

Sign in to reply to this topic.