au3Irr2 Function Reference
_IrrGetScreenCoordinatesFrom3DPositionScreen co-ordinates are returned for the position of the specified 3D co-ordinates.
#Include <au3Irrlicht2.au3>
_IrrGetScreenCoordinatesFrom3DPosition(ByRef $i_ScreenX, ByRef $i_ScreenY, $a_3DPositionVector)
Parameters
| $i_ScreenX, $i_ScreenY | Variables which will contain coordinates after call of the function. |
| $a_3DPositionVector | 1D array with three elements for x, y, z values of a position in space. |
Return Value
Success: True and sets passed $i_ScreenX and $i_ScreenYFailure: False and @error = 1
Remarks
Screen co-ordinates are returned for the position of the specified 3D co-ordinates as if an object were drawn at them on the screen, this is ideal for drawing 2D bitmaps or text around or on your 3D object on the screen for example in the HUD of an aircraft.
Related
_IrrGet3DPositionFromScreenCoordinates, _IrrGet2DPositionFromScreenCoordinates
Example
#include "au3Irrlicht2.au3"
_IrrStart()
local $x, $y, $vect[3]
local $BitmapFont = _IrrGetFont ( "./media/bitmapfont.bmp" )
local $SceneNode = _IrrAddMeshToScene( _IrrGetMesh( "./media/zumlin.md2" ) )
_IrrSetNodeMaterialTexture( $SceneNode, _IrrGetTexture( "./media/zumlin.pcx" ), 0 )
_IrrSetNodeMaterialFlag( $SceneNode, $IRR_EMF_LIGHTING, $IRR_OFF )
local $nodeCam = _IrrAddFPSCamera( $IRR_NO_OBJECT, 100.0, 0.1 )
_IrrSetNodePosition( $nodeCam, 80,0,0 )
_IrrSetCameraTarget( $nodeCam, 0,0,0 )
$vect[1] = 35 ; move the vector to just over the nodes head
WHILE _IrrRunning()
_IrrBeginScene(0, 0, 25)
_IrrDrawScene()
; using 3D coordinate get x/y position of this coordinate; it appears on the screen
_IrrGetScreenCoordinatesFrom3DPosition( $x, $y, $vect )
; draw the name of the model over the head of the model
_Irr2DFontDraw ( $BitmapFont, "ZUMLIN", $x-15, $y-8, $x+35, $y )
_IrrEndScene()
WEND
_IrrStop()