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Drawing a Line with T3D (debugDraw.cpp)

by Jacob S. · in Torque 3D Professional · 05/04/2010 (7:14 am) · 6 replies

debugDraw.cpp - Works after commenting out all the #ifdef TORQUE_DEBUG (in debugDraw.h) and uncommenting "#define TORQUE_BYTE_ALIGNMENT 4" & "#define TORQUE_FRAME_SIZE 16 << 20" in torqueConfig.h

ConsoleFunction(createDebugLine, void, 3, 3, "createDebugLine( %start, %end )") {

	Point3F start;
	dSscanf(argv[1], "%g %g %g", &start.x, &start.y, &start.z);
	Point3F end;
	dSscanf(argv[2], "%g %g %g", &end.x, &end.y, &end.z);
	ColorI color;
		color.red    = 255;
		color.green  = 0;
		color.blue   = 0;
		color.alpha  = 255;

	DebugDrawer::get()->drawLine( start, end, color );
	DebugDrawer::get()->setLastTTL(U32_MAX);

	Con::printf("I am being called Wewt!"); 
}
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Torque 3D Owner Jacob S.
ADMCMA
#1
05/04/2010 (7:45 am)
Disregard the prior ranting. The debug version started working after clearing the cache files. :/

Although if someone has a decal/sprite toturial/info that would look loads better than the current primative line.

Rex Hiebert
3Dmotif LLC
#2
05/04/2010 (9:29 am)
Yes, it would be nice to be able to easily draw lines, primitives and maybe even text in the 3D environment. I noticed that the debugDraw class has a few other types that aren't exposed via script. It also seems that the rendering engine has changed- the _drawWireCube declaration differs from what was trying to be called (and is now commented out).

Any chance we can see some tools like this in the next version? I only found one resource that showed how to get this class working to some extent. Still no way to clear the lines you have defined.

Torque 3D Owner Jacob S.
ADMCMA
#3
05/04/2010 (9:36 am)
Easy enough to add.

add this 
static void reset(); //Added
in the public section of debugDraw.h

and these to debugDraw.cpp

void DebugDrawer::reset() {
   if (sgDebugDrawer) {   
      sgDebugDrawer = NULL;
   } else {
      DebugDrawer::init();
   }
}

ConsoleFunction( clearDebugLine, void, 1, 1, "clearDebugLine()") {
	DebugDrawer::reset(); 
}


If you read through the debugDraw.h they mention TSE... which was an early name for TGEA as far as I can tell. So it's natural a few things like _drawWireCube would have changed.

Associate Manoel Neto
Default Studio Name
#4
05/04/2010 (9:50 am)
@Jacob: be aware that You're not really deleting the old debug drawer, causing a memory leak every time you call reset.

The correct way would be:
void DebugDrawer::reset() {
   if (sgDebugDrawer) {
      //DebugDrawer automatically clears sgDebugDrawer when deleted
      sgDebugDrawer->deleteObject(); 
   } else {
      DebugDrawer::init();
   }
}

ConsoleFunction( clearDebugLine, void, 1, 1, "clearDebugLine()") {
	DebugDrawer::reset(); 
}

Torque 3D Owner Jacob S.
ADMCMA
#5
05/04/2010 (9:57 am)
@Manoel - You can't actually delete sgDebugDrawer, if you do it causes Torque to crash instantly.

Rex Hiebert
3Dmotif LLC
#6
05/04/2010 (11:21 am)
Based on the code that was already there for dieTime, I came up with this:

void DebugDrawer::clear()
{
   for(DebugPrim **walk = &mHead; *walk; )
   {
      DebugPrim *p = *walk;

      *walk = p->next;
      mPrimChunker.free(p);
   }
}