tokenherbz wrote:
[int] works with drawfills
Well you can't exactly fill 0.25 of a pixel, now can you?
Computer Science Canada Real vs. Int |
| Author: | TokenHerbz [ Fri Oct 07, 2005 11:42 am ] |
| Post subject: | Real vs. Int |
yeah i have a question about reals and int... I personally use int because it works with drawfills, and reals dont, but reals look better, especially when trying to get a ball to gradually go faster... Im aware that you can *round* the real to use it as n int, but wont it round it to the whole? making it usless as a decimal?? I just need some info on how this works... |
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| Author: | Tony [ Fri Oct 07, 2005 12:13 pm ] |
| Post subject: | Re: Real vs. Int |
tokenherbz wrote: [int] works with drawfills
Well you can't exactly fill 0.25 of a pixel, now can you? |
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| Author: | codemage [ Fri Oct 07, 2005 12:15 pm ] |
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Some functions/procs don't work with reals. You have to live with that. You can store variables as reals in some cases, and then round them before you actually use them in their respective function. ie: functionthattakesanint ( round ( realnumbervariable) ) |
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| Author: | TokenHerbz [ Fri Oct 07, 2005 2:42 pm ] |
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ok well to fill the oval on a real variable... shall i make a for statment?? for i: 1 .. 10 drawoval(x,y,size+i,size+i,7) %%Where z,y,and size are reals end for Will that work?? etc:: i dont want to test it atm, i gotta go to work |
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| Author: | md [ Fri Oct 07, 2005 2:48 pm ] |
| Post subject: | Re: Real vs. Int |
Tony wrote: tokenherbz wrote: [int] works with drawfills
Well you can't exactly fill 0.25 of a pixel, now can you? I disagree; if you fill a quarter of a blue (RGB[0,0,255]) with red then the pixel would become blue + red/4 = RGB[255/4,0,255]. This goes a surprisingly long way to reducing jaggies when you are rendering polygons. |
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| Author: | Cervantes [ Fri Oct 07, 2005 2:53 pm ] |
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Tokenherbz: No, that will not work. Did you even read codemage's post? Round it! |
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| Author: | [Gandalf] [ Fri Oct 07, 2005 2:53 pm ] | ||
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No, they need to be ints... The advantage of using real numbers in this case is that you can use decimal numbers for calculations, which makes a rounded number more accurate, ie:
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| Author: | Tony [ Fri Oct 07, 2005 3:10 pm ] |
| Post subject: | Re: Real vs. Int |
Cornflake wrote: if you fill a quarter of a blue (RGB[0,0,255]) with red then the pixel would become blue + red/4 = RGB[255/4,0,255].
You're absolutly right. Though that's not how Turing's draw functions work  |
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