Omnimaga

Calculator Community => TI Calculators => General Calculator Help => Topic started by: titane666 on May 14, 2010, 05:55:46 pm

Title: seems like grey asm grey sucks on nspire
Post by: titane666 on May 14, 2010, 05:55:46 pm

Is it me or does the grey sucks on the ti nspire 84 keypad.
I tried djtunnel on a nspire and a 83 and the nspire grey in the menu didn't gave a good illusion.

i don't think it's because 83+ is more powerful than ti nspire so: what causes this ?

Title: Re: seems like grey asm grey sucks on nspire
Post by: bwang on May 14, 2010, 06:04:56 pm

Could be a timing issue. Grayscale is very sensitive to hardware details.

Title: Re: seems like grey asm grey sucks on nspire
Post by: DJ Omnimaga on May 14, 2010, 06:45:44 pm

For some reasons the tunnel looks pretty fine on my Nspire. Reuben Quest looked good too (by Omnicalc grayscale standards)

Title: Re: seems like grey asm grey sucks on nspire
Post by: Silver Shadow on May 15, 2010, 03:09:12 am

I think it's because the emu on the Nspire doesn't correctly emulate the speed of a real 84+. All asm programs run way too slowly, including any grayscale routines.
Also note that the emu from the 2.0 OS is slightly faster than the previous versions, giving better asm and grayscale results.

Title: Re: seems like grey asm grey sucks on nspire
Post by: Lionel Debroux on May 15, 2010, 12:32:55 pm

While emulation may worsen the problem (if screen writes are not synchronized in any way with the screen refresh), I'd first and foremost blame the low-quality screen of Nspires. It's slow and it generates blurry ghosts behind moving objects, so it's probably a passive matrix. Passive matrices are cheaper than active matrices - and they accompany TI's goal of selling a locked-down model that does not (well, did not, but it took three years in the making) play games.

Title: Re: seems like grey asm grey sucks on nspire
Post by: DJ Omnimaga on May 15, 2010, 04:29:27 pm

Also some 84+ ASM games are incredibly blurry on the Nspire. With my tunnel, when playing in lowest speed, it's near impossible to distinguish the beginning/end of curves

Title: Re: seems like grey asm grey sucks on nspire
Post by: Builderboy on May 15, 2010, 04:36:28 pm

Thats because of the LCD though right?  It sucks that one of the most powerfull calculator out there has such a crappy LCD :/

Title: Re: seems like grey asm grey sucks on nspire
Post by: DJ Omnimaga on May 15, 2010, 04:54:00 pm

It's definitively the LCD (or its driver)

Title: Re: seems like grey asm grey sucks on nspire
Post by: Ancient Power on May 15, 2010, 06:24:11 pm

The LCD is pretty shitty, but 84 greyscale works pretty good for me, surprisingly.