Hey, Bézier Curves (SLYT)
August 21, 2021 2:45 AM Subscribe
The Beauty of Bézier Curves - YouTube. Earlier this year, 3blue1brown put out a video Why arent you making math videos? (Also, a 3b1b podcast) - YouTube encouraging mathy people to take the plunge and make videos. This is one of the results.
That was great, thanks for posting!
LERPs all the way down!
posted by Mister_Sleight_of_Hand at 9:04 AM on August 21, 2021
LERPs all the way down!
posted by Mister_Sleight_of_Hand at 9:04 AM on August 21, 2021
Neat video, though it's strange to see splines described purely in the abstract. I just remember physical steel strip splines in drawing class, bending and weighting them to fit the points on the hull of a vehicle.
The bounding box calculation is clever, but misses a trick from Old Computer days that we've got far too much processing power to care about these days: put control points at your local extrema when creating the curve. That way, you can calculate the bounding box just by walking the control points rather than running a cubic. That mattered a lot when you had an 8 MHz 68000 in a LaserWriter calculating all the spline positions while rendering PostScript fonts. With modern processors, that's too much work.
posted by scruss at 2:42 PM on August 21, 2021 [2 favorites]
The bounding box calculation is clever, but misses a trick from Old Computer days that we've got far too much processing power to care about these days: put control points at your local extrema when creating the curve. That way, you can calculate the bounding box just by walking the control points rather than running a cubic. That mattered a lot when you had an 8 MHz 68000 in a LaserWriter calculating all the spline positions while rendering PostScript fonts. With modern processors, that's too much work.
posted by scruss at 2:42 PM on August 21, 2021 [2 favorites]
« Older So Long, Tom T! | #bus24 Newer »
This thread has been archived and is closed to new comments
posted by kliuless at 3:34 AM on August 21, 2021 [1 favorite]