How to use draw3DLine()

[jox]

Just a little tip:

If you wanna draw 3D lines with draw3DLine like this:

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driver->draw3DLine(vector3df(0,0,0), vector3df(0,10,0), SColor(0,0,0,0));

then it might not give you the expected result or even draw nothing.

to fix this you can set the transform and material of the driver before drawing lines, for example:

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driver->setTransform(video::ETS_WORLD, core::matrix4());
video::SMaterial m;
m.Lighting = false;
driver->setMaterial(m);

driver->draw3DLine(vector3df(0,0,0), vector3df(0,10,0), SColor(0,0,0,0));

(This tip is especially helpful if you forgot to look at the API docs where it says: "Note that the line is drawed using the current transformation matrix and material." )

[Tyn]

Doesn't work for me, does the function even work?

[Electron]

It's funny, I believe that function works in Mercior's Newton Tutorial (or at least the updated version, which is available on the Newton site http://www.physicsengine.com). I have tried to use thta function myself for debugging Newton, but I can't get the function to draw anything, even if I seem to be doing it exactly the same way as in Mercior's tutorial.

[jox]

Hmm...

DX8/9? Or OpenGL?

Where are you using the function? e.g. in which part of the run() loop.

If you see bounding boxes and skeleton bones with debugDataVisible, then you actually see draw3DLine() in action.

[Tyn]

Using DX9 inside the drawing loop. I've not tried using debugDataVisible so I can't say whether that works either. I'll try it and come back.