Game Development Community

Getting the View Matrix

by Rapid Fire · in Torque 3D Professional · 11/19/2009 (5:35 pm) · 2 replies

I'm trying to create a script function to convert the world space coordinate to a screenspace coordinate, but I'm running into issues.

I wrote:

Point3F worldSpace;
dSscanf(argv[1], "%f %f %f", &worldSpace.x, &worldSpace.y, &worldSpace.z);

GFX->getViewMatrix().mulV( worldSpace );
GFX->getProjectionMatrix().mulV( worldSpace );

//Point3F screenSpace = worldSpace * RatioToConvertToGuiUnits

char* buff = Con::getReturnBuffer(64);
dSprintf(buff,63,"%g %g",
screenSpace.x, screenSpace.y );

I've not yet gotten to the conversion from -1 to 1 to the Torque scale of GUI units, but the issue I'm running into is that calling getViewmatrix() seems to return the Identity matrix, regardless of where my camera's location is. Is there any way I can get the viewMatrix without having to recreate it by grabbing the current camera object?
NextNext Thread
PrevPrevious Thread
More from Torque 3D Professional


Associate Manoel Neto
Default Studio Name
#1
11/19/2009 (6:35 pm)
I'm pretty sure T3D 1.0 already has script functions for doing that, in the GuiTSCtrl (aka: the PlayGui). It's called project(), you pass a 3D world position and it returns the 2D position.

Torque 3D Owner Rapid Fire
Rapid Fire Studios
#2
11/20/2009 (1:13 am)
Well that would make things much simpler, I'm a little embarassed I didn't spot that before (first time with Torque).