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Newcomers DBPro Corner / Wow! The dot command is incredibly slow!

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NeilF
18
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Joined: 2nd Aug 2006
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Posted: 20th Aug 2006 00:22
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If I place a 1000 cube objects on the screen and move them around that's not a problem. 30fps with any trouble at all!

However, if I place 1000 dots on the screen each frame, instead the software is lucky to get a couple of frames a second.

A single pixel is obviously far simpler to render than a cube, so what gives? I assume the dot command then is just very slow and I need to look at direct memory access methods to do dot/lines super quick?
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Daemon
18
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Joined: 16th Dec 2005
Location: Everywhere
Posted: 20th Aug 2006 00:25 Edited at: 20th Aug 2006 00:26
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This person had the same problem. Here.

Basically you can use boxes or lock and unlock pixels

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Sixty Squares
18
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Joined: 7th Jun 2006
Location: Somewhere in the world
Posted: 20th Aug 2006 00:30
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yes, dot is very slow when you don't lock/unlock pixels

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Slayer93
20
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Joined: 5th Aug 2004
Location: I wish I knew
Posted: 20th Aug 2006 00:53
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You could also make an image memblock the size of the screen and fill up whatever pixels you wanted and paste it on the screen. That would probably be much faster

Naruto is the ninja...not really

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BatVink
Moderator
21
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Joined: 4th Apr 2003
Location: Gods own County, UK
Posted: 20th Aug 2006 00:54
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My tutorial on memblock images and screen manipulation here might be what you are looking for...

http://www.thegamecreators.com/data/newsletter/newsletter_issue_32.html#9

I wouldn't normlly recommend it for newcomers to DB Pro, but given your past experience it shouldn't be too strenuous on the brain cells!



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NeilF
18
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Joined: 2nd Aug 2006
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Posted: 20th Aug 2006 18:48
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BatVink - I downloaded that tutorial and it won't run

I gets errors with "commands out of place"

Difficult to learn from a tutorial that won't run
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