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DarkBASIC Professional Discussion / Pick object

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madcaddy
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Posted: 26th Aug 2003 01:04
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I saw this new command in U5 which looked great! Ive had a play with it and achieved great results with cubes, but use it with a humanoid model for example and its no good.. anyone else found this?
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Dreamora
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Posted: 26th Aug 2003 02:34
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what do you mean exactly by "its no good"?
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Codger
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Posted: 26th Aug 2003 04:20
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are you using the default camera (0)? This command only is effective with default camera. I have used it with models and they are fine in my program

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23
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Posted: 26th Aug 2003 12:26
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it`s pixel perfect object selection? how can it be no good?, works perfectly here, maybe a code example rather than some vague "no good" would be in order.

Mentor.
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madcaddy
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Posted: 26th Aug 2003 15:06 Edited at: 26th Aug 2003 15:08
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ok sorry for the vagueness, yep im using the default camera and i tried it with the Colz model that comes with darkbasicpro. he was inside a cube with the cull flag set to 0 if that might have affected it. i just used a line like this:



by no good i mean there wasnt the pixel perfectness that i had with cubes - there were often large areas that didnt return a 2.

thanks
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madcaddy
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Posted: 26th Aug 2003 15:24
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well waddya know i tried the same thing with the ship model and its perfect! could the fact that colz has animation data have affected it?
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spooky
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Posted: 26th Aug 2003 15:59
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I see your problem! Run code in source box below and you will see where problem lies. It's as if the object is in a different place for the pick object command. I also note that pick object is SOOOOO SLOOOOWWWWW with that particular object.

The programmer formerly known as sonic
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spooky
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Posted: 26th Aug 2003 16:26
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Weird - happens with some objects and not others - I will post as a bug!

The programmer formerly known as sonic
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spooky
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Posted: 26th Aug 2003 16:37
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Here is what code produces:



I have now posted in bug forum to see what the mods think.

The programmer formerly known as sonic
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haggisman
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Posted: 26th Aug 2003 18:12
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Im not supprised its slow, you are doing something like 768 pick tests on a 2000 poly object. It could come to figure of 1536000 intersection tests every frame.
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spooky
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Posted: 26th Aug 2003 19:16
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Yes, I know haggisman, it was a stupid statement to make as you would only ever do one pick object command each frame. I had to do that many picks to point out bug. However, replace object with a few simple cubes and pick object is blindingly quick.

The programmer formerly known as sonic
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madcaddy
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Posted: 26th Aug 2003 19:32
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yep that seems to be exactly what i noticed. the miko.x object has the same problem however use the .3ds version and its fine again. i wonder what it is about certain models that gives the bug..
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