Matrix Vector [position of object into screen]

[Nevitro]

 

Ped killme = Player.GetTargetedPed();Matrix lol = GTA.Matrix.Translation(Game.CurrentCamera.Position.X, Game.CurrentCamera.Position.Y, Game.CurrentCamera.Position.Z);                                  Vector3 YOU = GTA.Vector3.Project(killme.Position, 100, 100, Game.Resolution.Width, Game.Resolution.Height, 0.7F, 1.0F, lol);

 

 

I do this wrong ... because the screen cordinates are bigger than 85 K...

 

What i should do with "matrix lol" to get position of screen?

Edited February 21, 2013 by Nevitro

[pedro2555]

No replies on this, that's sad.

 

What exactly do you mean by 'screen coordinates are bigger than 85 K' ?

85 K what ?

 

This sounds very promising, I just don't get the problem your getting.

[Nevitro]

I want to get position of ped to the screen. It is called "project".

 

Only one problem - i don't know what exactly is MATRIX. I found i should put there "world-view-project". Matrix of world, matrix of view and project. Only problem - how to do that?

If i will fix that, many modders will use this [3D position to corditnation to 2D? how many new mods can be created! new huds! Messages on peds head!].

 

My older friends, IT teachers also don't know how to put there one matrix from three...

 

 

[edit]Pedro, write, i see You are online i must sleep, but i really want to know how to do that...

Edited February 28, 2013 by Nevitro

[pedro2555]

I want to get position of ped to the screen. It is called "project".

 

Only one problem - i don't know what exactly is MATRIX. I found i should put there "world-view-project". Matrix of world, matrix of view and project. Only problem - how to do that?

If i will fix that, many modders will use this [3D position to corditnation to 2D? how many new mods can be created! new huds! Messages on peds head!].

 

My older friends, IT teachers also don't know how to put there one matrix from three...

Ok then, I have pretty much the same problem. I'm not very familiar with 3D drawing.

 

And yeah, it will open quite a few doors.

[Nevitro]

Ech...

Only way to find really professional programmer ... Somebody must know how to make matrix. Now i just do 'fake' hud for peds body part

[pedro2555]

Ech...

Only way to find really professional programmer ... Somebody must know how to make matrix. Now i just do 'fake' hud for peds body part

Look it yourself. I am actually a professional programmer, but I don't really need to know about 3d, like matrices, projections and what not, for my job. And actually I have very low formation levels, all my knowledge comes from experience. (I mostly work on web-based solutions btw).

 

So yeah, pretty much anyone can get anywhere with programming. I do have a good book on 2d/3d drawing in C# lying around, but that was back in 1.0 or so, and scripthook uses code from SlimDx source, so it might not be very helpful for this case. So search around SlimDx, I know for sure, the Matrix and Vector classes on scripthook are an exact copy of the SlimDx code.

[nixolas1]

You can check out the source in the Javelin Mod, http://www.gta4-mods.com/script/javelinsti...lock-v11-f19468

has some drawing on locked peds,

 

this is what i found, you figure out what it is :

 

This is the main stuff:

 

Private Sub GraphicsEventHandler(ByVal sender As Object, ByVal e As GTA.GraphicsEventArgs) Handles mybase.PerFrameDrawing if bNormalMode then exit sub  if game.iskeypressed(hkAimKey) andalso camAim.isactive andalso player.character.isalive then 	if exists(tmpTargetVeh) orelse exists(targetVeh) orelse (targetGround <> vector3.zero) orelse (tmpTargetGround <> vector3.zero) then   dim pos as vector3   dim tmpColor as color      if timeLocked >= 300 then   	if bJavelin andalso bNVOn then     tmpColor = color.fromargb(150, 0, 255, 0)   	else           tmpColor = color.fromargb(100, 255, 0, 0)   	end if   else   	tmpColor = color.fromargb(100, 255, 255, 255)   end if      if exists(targetVeh) then   	pos = targetVeh.position    	   elseif exists(tmpTargetVeh) then   	pos = tmpTargetVeh.position    	   elseif targetGround <> vector3.zero then   	pos = targetGround   else   	pos = tmpTargetGround   end if      dim float_temp_1 as double   dim TO_RADIAN = 0.017453292519943295   float_temp_1 = Math.Atan2((pos.Y - Player.Character.Position.Y) , (pos.X - Player.Character.Position.X))   float_temp_1 = float_temp_1 - Game.CurrentCamera.Rotation.Z * TO_RADIAN   float_temp_1 += 1.570796   float_temp_1 = (0.51 + 0.9f * (Math.Sin(float_temp_1))) * myWidth      dim cam as camera = game.currentcamera   dim dist as double = pos.distanceto(camAim.position)   dim compPos as vector3 = (camAim.position + camAim.direction * dist)   dim y as double = (((((compPos - pos).z)) / dist) + 0.47) * myHeight      if bJavelin then   	drawLineAux(e, 0, y, 1680, y, 2, tmpColor)   	drawLineAux(e, float_temp_1, 0, float_temp_1, 1050, 2, tmpColor)   else   	drawLineAux(e, float_temp_1 - 40, y, float_temp_1 + 40, y, 2, tmpColor)   	drawLineAux(e, float_temp_1, y - 40, float_temp_1, y + 40, 2, tmpColor)   end if 	end if 	

 

 

 

for drawing of lights on ped:

 

tmpLightPos = l.v.GetOffsetPosition(li.offSet) + vector3.worldup * l.VOff * 1.5 - game.currentcamera.direction * (l.VOff / 2)       if tmpLightPos.z - tmpLightPos.toground.z < 3 then tmpLightPos.z = tmpLightPos.toground.z + 3

 

 

 

'cpTarget.position = tmpTargetVeh.position + vector3.worldup * (tmpTargetVeh.model.getdimensions.z / 2)     	'cpTarget.diameter = tmpTargetVeh.position.distanceto(player.character.position) / 100

 

 

 

private sub drawSpriteAux(byval e As GTA.GraphicsEventArgs, tex as texture, x as double, y as double, w as double, h as double, _   rot as double, col as color, optional square as boolean = false) if square then 	e.graphics.drawsprite(tex, x * width_Coef, y * height_Coef, w * width_Coef, h * width_Coef, rot, col) else 	e.graphics.drawsprite(tex, x * width_Coef, y * height_Coef, w * width_Coef, h * height_Coef, rot, col) end ifend subprivate sub drawLineAux(byval e As GTA.GraphicsEventArgs, xIni as double, yIni as double, xFin as double, yFin as double, _   w as double, col as color) e.graphics.drawline(xIni * width_Coef, yIni * height_Coef, xFin * width_Coef, yFin * height_Coef, w * width_Coef, col)end subprivate sub drawTextAux(byval e As GTA.GraphicsEventArgs, text as string, x as double, y as double, col as color) e.graphics.drawtext(text, x * width_Coef, y * height_Coef, col)end subprivate sub drawFrameAux(byval e As GTA.GraphicsEventArgs, x as double, y as double, w as double, h as double, lw as double, col as color) drawLineAux(e, x - (w / 2), y - (h / 2), x + (w / 2), y - (h / 2), 2, color.fromargb(150, 255, 255, 255)) drawLineAux(e, x - (w / 2), y + (h / 2), x + (w / 2), y + (h / 2), 2, color.fromargb(150, 255, 255, 255)) drawLineAux(e, x - (w / 2), y - (h / 2), x - (w / 2), y + (h / 2), 2, color.fromargb(150, 255, 255, 255)) drawLineAux(e, x + (w / 2), y - (h / 2), x + (w / 2), y + (h / 2), 2, color.fromargb(150, 255, 255, 255))end sub

 

 

 

nice stuff

will have to convert to c++ or some if you use that though... math should be the same.

[pedro2555]

Good job.

[Nevitro]

EDIT:

I have this, JulioNIB send me this in private message along time ago. It is good, but i didn't have time to convert this to c#...

Edited March 4, 2013 by Nevitro