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DarkBASIC Professional Discussion / long camera range

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qwe
22
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Joined: 3rd Sep 2003
Location: place
Posted: 13th Nov 2003 03:28
my character height is 40. my levels are outdoor and huge. my camera range is 18000. if i were to make my character height 4, thereby also ebing able to have the camera range much less (also having everything else smaller tho tahts irrelevent) would it go faster because the camera range is lower? or does the only thing that affects the speed with camera range is how much stuff is in vision/range(if i scale everything down 10 or 100 then the same amount of stuff will be in vision so it wouldnt matter)
thanks
Genesis Rage
22
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Joined: 5th Oct 2003
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Posted: 13th Nov 2003 04:57
i "believe" it runs on how much is in the screen... if you have 2000 polys when running at 180000... it would still run the same if there was 2000 polys at a range of 1800...

its just when you set the camera range really far... there can be more polys that it has to render

LammaDog
22
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Joined: 8th Nov 2003
Location: California
Posted: 13th Nov 2003 05:29
I think your video card would play apart in that too.
I know in the game BF1942, I can see way farther with a better video card.
las6
23
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Joined: 2nd Sep 2002
Location: Finland
Posted: 13th Nov 2003 09:27
I'm not sure about the Speed differences, but there are other things to be considered. Scaling things down does change the looks. Using the default FOV there is a certain amount of "perspective". When you scale down, this changes. Bigger things just tend to look bigger even though the world would be scaled proportionally. It's all in the perspective.

Other thing you should remember is z-depth. Now you are really using the camera range of min_value - 18000. That means the zdepth range is quite big. using a smaller camera range results in smaller z ranges. I just don't know which one is easier on the card as it has to sort the polygon z-order to know what parts should be drawn over others.

I do know that if your close camera range is too close and you are using long range, you might get some nasty z-tearing. (jaggedness in water that overlaps land for example) You can fix this quickly by setting a slightly larger close camera range.

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qwe
22
Years of Service
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Joined: 3rd Sep 2003
Location: place
Posted: 13th Nov 2003 17:17
my level is made in MS, the ocean is right below the level there is no intersecting of the ocean plain and the land, so thats not a problem

i gues i will find out by scaling evrything down and comparing the speed and how it looks and hten deciding

thanks

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