[Include] Screen to World vice versa

[Include] Screen to World vice versa - Printable Version

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Screen to World vice versa - Nero_3D - 09.12.2013

[Include] ScreenToWorld (Alpha)

Welcome, to another useless release

Today I present the ScreenToWorld and WorldToScreen Include

Since there is nothing to explain two screens of each

ScreenToWorld(playerid, Float: screenX, Float: screenY, & Float: vX, & Float: vY, & Float: vZ);

I enter in my debug mode screenX and screenY which is marked by the red dot, the basketball should appear behind it

WorldToScreen(playerid, Float: x, Float: y, Float: z, & Float: screenX, & Float: screenY);

Here I enter x, y and z relative to my position to make it easier for me, the first shows 5 to the right, 20 to the front and 5 up in the height

If the coordinates aren't on the screen nothing will happen in ScreenToWorld (return 0)
But in WorldToScreen it always returns the screen x and y even if these are out of the visible grid

Download

https://github.com/Shiska/screentoworld

How to use

http://forum.sa-mp.com/showpost.php?...4&postcount=30

Re: Screen to World vice versa - Patrick - 09.12.2013

I have no idea what I could use this for, but maybe I will need it for something in future, nice release.

Re: Screen to World vice versa - Vinnyy - 10.12.2013

haha, good job )
did you opened matrix mathematics to direct mathematics?

Re: Screen to World vice versa - Kar - 10.12.2013

Quote:

Originally Posted by pds2k12

I have no idea what I could use this for, but maybe I will need it for something in future, nice release.

Are you crazy? This is insane! This can be used to detect if vehicles are on a player's screen and stuff, this is a well needed feature in sa-mp! Holy shit!

Example in a TDM or something, if a playerb is on the screen of playera, they can create a textdraw using getScreenFromWorldPosition to point on playerb on playera's screen from playerb's position!

This is awesome!

Thank you Nero_3D

Re: Screen to World vice versa - Sublime - 10.12.2013

I hope it syncs well

It's not useless tho, but I don't understand the basic function (yes i uber n00b)

Re: Screen to World vice versa - ViruZz - 10.12.2013

This is actually amazing that someone converted it to PAWN. WorldToScreen and ScreenToWorld is what the SA:MP client uses to determines nametag positions. Of course with a reversed address for the WorldToScreen to be completely functional but seeing this in PAWN is really something. We can actually make our own nametags if we wanted to.

+1 mate.

Re: Screen to World vice versa - kristo - 10.12.2013

Aww... This is so great. I already have an use for this.

Re: Screen to World vice versa - iJumbo - 10.12.2013

The object can follow the player screen?

Re: Screen to World vice versa - Slice - 10.12.2013

What about the widescreen setting in display options?

Re: Screen to World vice versa - Vinnyy - 10.12.2013

this is example of world to screen projection:
https://www.youtube.com/watch?v=E7nDgCleeWU

and script: http://pastebin.com/YQjzqD5G
with wide screen settings

Re: Screen to World vice versa - Kyle - 10.12.2013

Nice release, but could you explain how it works and calculates for higher resolutions?

Regards

Re: Screen to World vice versa - Vinnyy - 11.12.2013

Quote:

Originally Posted by KyleSmith

Nice release, but could you explain how it works and calculates for higher resolutions?

Regards

There is no higher resolution...
samp in-game resolution is always constantly 640x480 or smth like that

Re: Screen to World vice versa - SkittlesAreFalling - 11.12.2013

Amazing, will use to detect if players, objects, and vehicles are seen in the player's screen!

Re: Screen to World vice versa - Kaperstone - 11.12.2013

Quote:

Originally Posted by Slice

What about the widescreen setting in display options?

pawn Код:

/// These values were gathered by assumption of the size of the screen

#if 1 // change this to 0 if you use widescreen - or create an player array and let the player decide
    const
        Float: cInGameX = 0.7,
        Float: cInGameY = 0.525,
        Float: cOnScreenX = 640.0,
        Float: cOnScreenY = 447.0
    ;
#else 
    const // Widescreen
        Float: cInGameX = 0.7,
        Float: cInGameY = 0.4,
        Float: cOnScreenX = 640.0,
        Float: cOnScreenY = 447.0
    ;
#endif

OT: Nice release,very interesting ...

Re: Screen to World vice versa - iZN - 11.12.2013

Good release. It might get handy.

Re: Screen to World vice versa - Emmet_ - 11.12.2013

This is a VERY nice release! I'm surely going to run some tests later on and experiment with this.

Quote:

Originally Posted by KyleSmith

Nice release, but could you explain how it works and calculates for higher resolutions?

Regards

It uses the "GetPlayerCameraFrontVector" function, which automatically gets the player's front camera vector according to their resolution, AFAIK (not sure about widescreen).

AW: Re: Screen to World vice versa - Nero_3D - 11.12.2013

Quote:

Originally Posted by Vinnyy

haha, good job )
did you opened matrix mathematics to direct mathematics?

Just basic vector addition, substraction and multiplication, actually nothing special

Quote:

Originally Posted by Vinnyy

this is example of world to screen projection:
https://www.youtube.com/watch?v=E7nDgCleeWU

and script: http://pastebin.com/YQjzqD5G
with wide screen settings

Did you made that script ?, it looks pretty good
First I wanted to let it work over angles but well I got a problem with representing it on the screen

Wordering about

pawn Код:

new Float:fPitch = acos(fCamLookAt[2]) + 270.0; // shouldn't that be asin ?
// five lines after
fPitch = 0.0;

Quote:

Originally Posted by KyleSmith

Nice release, but could you explain how it works and calculates for higher resolutions?

Regards

Like Vinnyy said, resolution doesn't matter because the 680x480 canvas are always the same and the range you see in game doesn't change with it

Re: AW: Re: Screen to World vice versa - Vinnyy - 12.12.2013

Quote:

Originally Posted by Nero_3D

Did you made that script ?, it looks pretty good
First I wanted to let it work over angles but well I got a problem with representing it on the screen

Wordering about

pawn Код:

new Float:fPitch = acos(fCamLookAt[2]) + 270.0; // shouldn't that be asin ?
// five lines after
fPitch = 0.0;

yep, it was me.

Код:

fYaw = 90.0;
    fPitch = 0.0;
       
        fCamPos[0] = -0.1;
        fCamPos[1] = 0.0;
        fCamPos[2] = fHeight;

delete these lines )
it I used for debugging
next, change fZFar to bigger value(for example, 6000.0)

good luck

AW: Screen to World vice versa - LeBoyce - 12.12.2013

This is awesome! Exactly what I needed!

Great include.

Respuesta: Screen to World vice versa - adri1 - 14.06.2014

ScreenToWorld not works!