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This is an archived, read-only copy of the United-TI subforum , including posts and topic from May 2003 to April 2012. If you would like to discuss any of the topics in this forum, you can visit Cemetech's TI-BASIC subforum. Some of these topics may also be directly-linked to active Cemetech topics. If you are a Cemetech member with a linked United-TI account, you can link United-TI topics here with your current Cemetech topics.

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Advanced Member

Joined: 09 Aug 2006
Posts: 428

Posted: 18 May 2008 03:57:02 pm    Post subject:

while I was looking at one of my old programs, I suddenly had an I idea for pure basic 3 level grayscale. by putting dual layer ascii grafix on the graphscreen and one layer on the homescreen, you can switch the screens to see the second layer in grayscale.

however, when testing it on the calc, it seems that the grayscale of every character is a bit darker then the char before is, and thus creating 128 different levels of grayscale.

to bad that the grayscale isn't consistend and that the upper rows are a bit to light to see good, or else this could be used in a game.

here is a program to test it out:


if anyone has any ideas or practical uses for this, please post them.
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Joined: 22 Jan 2007
Posts: 770

Posted: 18 May 2008 04:28:27 pm    Post subject:

This is (most likely) because TI's graph screen displaying is so slow. It displays each of the 64 rows from the top to the bottom, slowly (as compared).
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Advanced Member

Joined: 24 May 2006
Posts: 265

Posted: 18 May 2008 04:44:55 pm    Post subject:

I'm fairly sure this is what HarrierFalcon did in the intro for Metroid Pi.
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ceci n'est pas une |

Super Elite (Last Title)

Joined: 04 Nov 2003
Posts: 8328

Posted: 18 May 2008 06:17:29 pm    Post subject:

My own attempt at basic grayscale in a topic a while ago: http://www.unitedti.org/index.php?showtopic=3586
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title goes here

Bandwidth Hog

Joined: 01 Nov 2005
Posts: 2007

Posted: 19 May 2008 05:00:49 pm    Post subject:

interesting, I'm guessing you didn't try to count the different numbers of gray right ^^ jk

@Darkerline: Love that picture about grays being equal 0x5
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Advanced Member

Joined: 09 Aug 2006
Posts: 428

Posted: 21 May 2008 06:24:16 pm    Post subject:

somehow, nobudy notised that I uploaded the wrong program...


@ darkerline, I tried your program, but it somehow crashed my calc (must have been some asm programs I have installed). I didn't try it after that, tho.
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