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Feb 29th, 2004, 10:38 AM
Electroman

yeah thats along the thoughts I had but but the thing is when you fire you aren't gonna press it really fast so the time you have it pressed maybe a few frames long so for PC it should work but also as far as TV goes it can figure out where your pointing because it will see black untill the screen "painting" gets to the place your pointing then it changes to another color, at this point it finds out where the painting was upto and presto you found out where it is.

For PC monitors I don't know if he was thining of TFT because thats what were in the lab we were in (and it'll need to work with all kinds if thats the case). I'll need to ask him on monday in my next lecture with him :D. i'l tell him I know a pupet thats uite interested in it ;).

But I think it needs to be white becuase if you pointed it at a black bit it wouldn't know when it changed :confused:.
Feb 29th, 2004, 10:44 AM
NoteMe

Yeah ofcourse. I don't know much about TVs but PAL has a refreshrate of 50 and NTSC have 60Hz so I guess it's more or less the same. But I also think that they use RGB as a PC mointor, so that will meen that they combine all the colors to get white, and using no colors to get black so I guess he is right about the white color.

And yes say hello to him from me..:D
Feb 29th, 2004, 10:46 AM
Electroman

Ow, not fair I was drawing a nice little animation to help explain :D, u were meant to understand yet;)
Feb 29th, 2004, 10:49 AM
NoteMe

Hehe...I was actually thinking about asking you to do that...so if you havn't deleted it yet, please post it. So I am 100% sure that I got it right. I have been wondering about this since I was 7 years old..:
Feb 29th, 2004, 10:52 AM
Electroman

k, just making it still....
Feb 29th, 2004, 11:17 AM
Electroman

1 Attachment(s)

Hope this helps:
http://www.vbforums.com/attachment.p...postid=1637527
Feb 29th, 2004, 11:24 AM
NoteMe

Hehe...thats pretty nice...:D...can't belive you didn't use more time then that to make it. I see your point here. Pretty clever. I have always thought it calculated some reflections or something....feel dumb..:D :blush:
Feb 29th, 2004, 11:28 AM
Electroman

Not as bad as some of the things I thought, like it had a camera that actually looked at the screen to see what was there, kind of similar but also totaly different :). I didn't realise that the consoles have some much control over the TV, to know where on the screen is being drawn, much easier on PC, just let the GPU do it downside being can't request where its drawing :(.
Feb 29th, 2004, 11:38 AM
NoteMe

Quote:

Originally posted by Electroman
...downside being can't request where its drawing :(.

:confused: What do you mean?
Feb 29th, 2004, 11:40 AM
Electroman

Using a PC we can't find out where on the screen is being drawn (can we?). In Dx you'll just say Flip and then as far as we know it drew the whole thing in one go.
Feb 29th, 2004, 11:47 AM
NoteMe

Yeah, but the refresh of the screen does the same as your picture....if oyu had a really really slow PC, you would see the flip beeing drawn the same way as your drawing. You can more or less see it if you have diffrent refresh rate of on your monitor then your TV system over there. If you have a digital viedo camera, try to tape your PC monitor and you can see how it is beein refreshed...;9
Feb 29th, 2004, 11:57 AM
Electroman

Ow sorry, I mean like in the program code if the light gun told your program "I'm Pressed" it wouldn't be able to say "ow well the monitor is currently drawing at pixel blaa blah".

hehe aint it great when you do that with the vidio carmera, mind new ones refresh faster or better and you can't tell ;).
Feb 29th, 2004, 12:18 PM
NoteMe

The reson you can see that when you tape it with a videocamera is becuase it has not the same refresh rate as the screen...;)...has nothing to do if it is a good one or a bad one.

Quote:

Ow sorry, I mean like in the program code if the light gun told your program "I'm Pressed" it wouldn't be able to say "ow well the monitor is currently drawing at pixel blaa blah".

Why would you know that there? The gun tells you where it hits to the USB port or what ever. If it is like you said, the gun can tell it for you so you don't have to write code for it...;)
Feb 29th, 2004, 12:23 PM
Electroman

Quote:

Originally posted by NoteMe
Why would you know that there? The gun tells you where it hits to the USB port or what ever. If it is like you said, the gun can tell it for you so you don't have to write code for it...;)

Because all the gun can tell you through the USB would be "I See White" then the program would say "Ow thats nice, I'm currently half way through drawing ot the monitor so I guess your pointing at the center". I think thats how it is, thats how I understood it anyway :confused:.
Feb 29th, 2004, 12:35 PM
Electroman

Editing Animation to explain better......
Feb 29th, 2004, 12:40 PM
NoteMe

So is Duck Hunt On Nintendo drawing a white screen every other frame or so then...hmmm...weird...
Feb 29th, 2004, 12:43 PM
Electroman

The way he said it it was as if using a TV you dont need it to be using a white screen because its something to do with how it displays pictures.
Feb 29th, 2004, 12:46 PM
NoteMe

Hmmm...I thought it was the same way....ask him if he knows the diffrence becuase I can't see any. They both have the same things, and are using magnetic fields and electric fields to get the light on the right spot....
Feb 29th, 2004, 01:18 PM
Electroman

1 Attachment(s)

Here we go, a bit crude I know but for anyone not reading my twisted explinations it might help:
http://www.vbforums.com/attachment.p...postid=1637593
Feb 29th, 2004, 01:21 PM
Electroman

Quote:

Originally posted by NoteMe
Hmmm...I thought it was the same way....ask him if he knows the diffrence becuase I can't see any. They both have the same things, and are using magnetic fields and electric fields to get the light on the right spot....

Will do, bet he ends up saying something like consoles do use a white frame (just to confuse things again). Agree with you tho I thort it was the same.
Feb 29th, 2004, 01:59 PM
NoteMe

Quote:

Originally posted by Electroman
Here we go, a bit crude I know but for anyone not reading my twisted explinations it might help:
http://www.vbforums.com/attachment.p...postid=1637593

Wow....you are great with this...maybe you sould be the ultimate drawing artist on this forum...:D
Feb 29th, 2004, 02:00 PM
NoteMe

Quote:

Originally posted by Electroman
Will do, bet he ends up saying something like consoles do use a white frame (just to confuse things again). Agree with you tho I thort it was the same.

Yeah..but if you do it to ofte, you will end up seeing it...at least I would think so. Looking forward to hear what he say.
Feb 29th, 2004, 03:41 PM
Electroman

Quote:

Originally posted by NoteMe
Wow....you are great with this...maybe you sould be the ultimate drawing artist on this forum...:D

:confused: Just using Paint Shop Pro 5, with Animation Shop Pro, really cool tools :D. I downloaded PSP8 the other week and wasn't very inpressed, version 5 is better. I didn't think the pic was that good, I wouldn't say I can draw that well, espeacially when it comes to realisim ;). Thanx anyhow though :)
Feb 29th, 2004, 03:44 PM
NoteMe

I am sooo glad to hear that...I liked version 5 better too.Have 7 now, and I actually don't like it at all.....
Feb 29th, 2004, 03:49 PM
Electroman

Didn't you find it wierd how Animation Shop Pro had no real painting features to speak of? I always make a Paint SHop File that uses layers then turn layers on and off to make each frame then save each frame as a bmp and open it in Animation Shop to add to the animation. Find it a bit of a fuss considering their sister apps.
Feb 29th, 2004, 04:00 PM
NoteMe

I think they are using all their effort on PSP so it is probably the way it is going to be. Thats why they are distributing the two apps togheter...so they don't have to make twice as many lines of code...:D
Feb 29th, 2004, 04:11 PM
Electroman

Think I'm gonna make a nice new logo now I have this new support for my Drawing skills :D. Do you know if the Limit is still 20000 bytes even if you choose to have the image from a URL instead of hosted?
Feb 29th, 2004, 04:17 PM
NoteMe

Have no idea...but I guess so. So it should not take that much time to load a page.....but hey, we are getting off topic here....;)...better stop before this thread are closed...;)
Feb 29th, 2004, 04:20 PM
Electroman

Yeah good point, might be an idea to open a new thread for the FAQ discussion because not many people are going to read through all these posts just to give a comment, and they wont know if its already been raised ;).

Woohoo, I'm now on 1000 posts :).
Feb 29th, 2004, 04:24 PM
NoteMe

I am soon at 3k...:D...Yeah maybe that...good idea. I will look at that...but I don't think we need that many new ideas at the moment, probably need more guys to work on the ideas we all ready have...;)

PS: Kasracer got banned...:D
Feb 29th, 2004, 04:27 PM
Electroman

That would be a good way to start the new thread with a list of what needs doing and that could be edited and names added next to what people are doing when people come forward.

Quote:

Originally posted by NoteMe
PS: Kasracer got banned...:D

What for? The PHP thing?
Feb 29th, 2004, 04:44 PM
NoteMe

Yeah maybe we should do that....but maybe we should waith some days so we can finish the tutorials that we have started? Or just do as you want. I don't care....:D

No idea about Kasracer....
Mar 1st, 2004, 10:08 AM
Electroman

Light Gun

I was told I should check the Net just to make sure this is right but its something to do with on a PC monitor: The dots are more persistant, So like when a frame is being drawn the frame before is still fading away. With a white frame there is a burst of higher intensity which will show where the monitor is drawing. :D
Mar 1st, 2004, 10:18 AM
Electroman

GetTickCount() Vs QuerryFrequencyCounter()

As far as the GetTickCount discussion goes I asked him the question as if I preferred GetTickCount and he was really adiment that the acuraccy is very important. It sounded like he was saying its best to have a loop how I mentioned I used to do, where you calculate the time the frame took and calculate movement on that. Instead of having every frame Syncronised. In which case the accuracy is esspeacially important :D.

:)
Mar 1st, 2004, 12:20 PM
NoteMe

Re: Light Gun

Quote:

Originally posted by Electroman
I was told I should check the Net just to make sure this is right but its something to do with on a PC monitor: The dots are more persistant, So like when a frame is being drawn the frame before is still fading away. With a white frame there is a burst of higher intensity which will show where the monitor is drawing. :D

Hmmm....so we have bad PC monitors...:(....thats not good.....OK....but it still needs to draw the white frame every other frame or soo...and That have too look weird on the screen. I can't understand anything else....And you have to make sure that the white frame is actually updated on the screen. So you have to have a high refreshrate on the monitor too. If not it might skip it....
Mar 1st, 2004, 12:23 PM
NoteMe

Re: GetTickCount() Vs QuerryFrequencyCounter()

Quote:

Originally posted by Electroman
As far as the GetTickCount discussion goes I asked him the question as if I preferred GetTickCount and he was really adiment that the acuraccy is very important. It sounded like he was saying its best to have a loop how I mentioned I used to do, where you calculate the time the frame took and calculate movement on that. Instead of having every frame Syncronised. In which case the accuracy is esspeacially important :D.

:)

Of course accuracy is importent. But as I said the reason it is not accurat is the same as for every counter in a interupt based OS like Windows. You will have context swtitches....;)....so you can't eliminate them at all. You can set the priority of the prosess higher, but there will still be context switching in your OS...;)
Mar 1st, 2004, 02:13 PM
NoteMe

OK...I have some more ideas here. At least for good commented code....

How to get the height and width of a file. The best way is always to read the header if you don't allready have the picture loaded in an image box, so the tutorial/example should read the heder og at least JPG/BMP and maybe GIF and PNG...

Anyone have source code for GIF and PNG. I have the rest....
Mar 1st, 2004, 02:46 PM
Electroman

Should make a link to www.wotsit.org in that case :).

You saying you already done BMP cos if not I'm up for it. As for GIFs they are a bit dodgy and even the docs at wotsit I couldn't make sense of.
Mar 1st, 2004, 02:47 PM
NoteMe

Yeah used BMP for a DX game once...and JPG for a web site application....but PNG and GIF should probably be there too...maybe Sastraxi know about the PNG..:D
Mar 1st, 2004, 02:56 PM
NoteMe

Look what I found....

Code:

/* ** The GIF header format. ** ** This structure actually contains the header, logical screen ** descriptor, and the global color table for the GIF image. */ typedef struct _GifHeader /* Offset Description */ { BYTE Signature[3]; /* 00h ID Signature */ BYTE Version[3]; /* 03h Version Number */ WORD ScreenWidth; /* 06h Logical Screen Width */ WORD ScreenHeight; /* 08h Logical Screen Height */ BYTE PackedField; /* 0Ah Color Information */ BYTE ColorIndex; /* 0Bh Background Color Index */ BYTE AspectRatio; /* 0Ch Pixel Aspect Ratio */ GIFGLOBALCT GlobalCT; /* 0Dh Global Color Table */ } GIFHEAD;

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