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wmaass

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Posts posted by wmaass

    Old Project Problem

    in Programming

    Posted

    It has been a long while since working with the Leadwerks Engine. I dusted off an old project and I am having some weird rendering going on (see below). I'm on 2.27 and this does not happen with a clean project generated from the wizard. The problem project uses Framework, so I am wondering if something is going on there. Also happens in the 2.40 editor. Anyone seen this?

     

    http://www.maasscreativelabs.com/huh.jpg

    • Upvote 1

    Leadwerks with OpenNi

    in Showcase

    Posted

    The only functional difference I ran into is that at least for now there is no audio support for the Asus, but this is because OpeNni does not yet support it. The biggest thing for me was that the Asus permits commercial use while Kinect does not, but this is soon changing. The fine details of Kinect commercial use is still a question though. The Asus is also much smaller and does not require a special power supply. The USB cable length can be extended quite a bit which is important to me.

     

    I also went the Wiimote route in the beginning, then moved to FaceAPI which was good but not practical for my projects. I have also done some simple color based fast object tracking but it isn't as robust.

     

    I will have to check out jDome, sounds cool. I have access to 3 screen projection systems, this should be wild in that system as well.

    Leadwerks with OpenNi

    in Showcase

    Posted

    Oh my god, it's a holodeck. How does it feel when you are walking around, from your view? Do you get disoriented?

     

     

    It feels like I don't ever want to play a game without it...ever. No disorientation at all, the immersion is incredible. It provides more of an impact than 3D glasses, and without wearing anything. Integration is really easy.

     

    i think this needs to be added as a feature for LE3... i want to use the editor like this... just stand in front of the wallscreen and place objects into the scene with a wave of my hand... :D

     

    That would be cool, the sky is the limit with this. I am using the Asus sensor but the Kinect sensor works with it as well.

    Physics Question

    in Programming

    Posted

    Why is it that dealing with a simple rolling ball is so awkward for these complex physics engines? Anyway, does anyone know if you can remove forces acting on a body or just make it sleep? I ask this so that I can stop my ball from rolling when it's velocity is below a certain thresh.

     

    EDIT: I didn't see SetBodyVelocity right away, looks like I can use that.

    Physics Question

    in Programming

    Posted

    It sounds about right (for the amount of force part).. but you also need to consider direction when adding force to body.. use a normalized vector to specify direction and then multiply it with the force scalar... but don't be surprised if it doesn't look right, game physics often don't look good if based on real world values

     

     

    Thanks for the reply. I concede that I might have to play with it for it to "look" right. No big deal.

    Physics Question

    in Programming

    Posted

    Hi All,

     

    Putting together a little miniputt game for use in a full size golf simulator. The sim has a sensor that measures all of the launch conditions of any shot. I want to take the measured ball velocity and translate it into something that I can use with AddForce. Looking around on the net I found:

     

    "One Newton (N) of force is defined as the amount of force needed to accelerate 1 kilogram (kg) of mass at a rate of 1 meter per second squared (m/s2)."

     

    A golf ball is roughly 0.046 kg, therefore if I have a measured ball speed of say 5 mps then:

     

    force = 0.046 * 5.0^2

     

    So then I can add force like so:

     

    AddBodyForce ballBody, Vec3(0, 0, 1.15), 0

     

    Does this sound right?

    glsl 1.20 not supported ?

    in Programming

    Posted

    Hi all,

     

    Returning to using LE after a long break. I got a new/old PC recently and installed 2.27. I pulled up an old project and tried it out only to get this error:

     

    "'glsl 1.20 not supported etc, etc"

     

    I have a GTX 285, seems to me it should work. Anyone encounter this issue?

    Nvidia 3D Vision

    in Programming

    Posted

    So here I am revisiting the 3D thing. I have some folks interested in it enough to pursue. Maybe someone knows the answer to this but does LE support Quad Buffering? If it does then NVidia 3D vision can be used in theory. I've found a passive 3D solution (which I prefer) that would work as well but it also would require Quad Buffering.

    Nvidia 3D Vision

    in Programming

    Posted

    wmass, this is the approach you're using... right?

     

    http://www.youtube.com/watch?v=BduSDvUU6MY&feature=related

     

    --Mike

     

    Yes, exactly. You can get a free version of the API that has enough in it to do this. But to actually sell anything using it you have to pay. I needed to get something going in order to provide a convincing demo for people I work with to devote some resources to something similar (but better). If you want to try it and run into any problems let me know, I might be able to help you get it running. You will need a decent web cam. I used an xbox cam at first but then switched to a security camera connected to an analog to digital video converter.

    Nvidia 3D Vision

    in Programming

    Posted

    another interesting bit of vr insight... not quite totally vr, but really impressive... i think this is along the lines of, but better than stereoscopic...

     

     

    --Mike

     

    Yeah, that's the stuff I've got going in LE with FaceAPI - this is pretty straight forward to get going if anyone else wants to try. Using a Wiimote, as creative as it is, isn't very practical.

    Nvidia 3D Vision

    in Programming

    Posted

    After playing around for several hours I became tired of the glasses. The effect was cool for a little while but this stuff messes with my head way too much. I concur on head tracking, it is far more compelling than active/passive 3D. I've managed to get some very good head tracking going with LE via FaceAPI and am currently working on a proprietary head tracking setup. I am lucky in that I work with some of the best machine vision guys on the planet. It's exciting stuff. I really wanted to see what my current head tracking setup would look like WITH the active glasses, hence my question about NVidia 3D vision relative to LE. I got a chance to see something like this recently and wanted to replicate it.

    Nvidia 3D Vision

    in Programming

    Posted

    It looks like unless you have a Quadro card you won't be able to flip a switch in the nVidia Control panel. I purchased the bundle which comes with a Samsung monitor that can do 120hz, the glasses and emitter. It is a nice package though it is a shame it does not support Windows XP.

    Nvidia 3D Vision

    in Programming

    Posted

    So my Nvidia 3D Vision bundle arrived today, pretty cool. Now the question is, how can I make Leadwerks engine take advantage of it. I'm looking around for info but if anyone has any ideas, awesome.

    DOF Settings

    in Programming

    Posted

    Here is simplified version using c++. Thanks for your help by the way.

     

    #include "framewerk.h"
#include "ProcessScene.h"

using namespace leadwerks;

int main( int argn, char* argv[] )
{

Initialize() ;
TMesh		mesh;
TLight		light;
TMaterial	material;

RegisterAbstractPath("C:/Program Files/Leadwerks Engine SDK");

Graphics(800,600);

Framewerk fw;

if( !fw.Create() )
{
	MessageBoxA(0,"Failed to initialize engine.",NULL,0);
	//return 1;
}

fw.GetRenderer().SetSkybox( LoadMaterial("abstract::FullskiesBlueClear0016_2_L.mat") );
fw.GetRenderer().SetSSAO( true );
fw.GetRenderer().SetGodRays(true);
fw.GetRenderer().SetBloom(true);
fw.GetRenderer().SetHDR(true);
fw.GetRenderer().SetAntialias(false);
fw.GetRenderer().SetWater(true);
fw.GetRenderer().SetWaterHeight(1.0);
fw.GetRenderer().SetWaterSoftness(0.8);
fw.GetRenderer().SetWaterAmplitude(2.1);
fw.GetRenderer().SetDistanceFog(true);
fw.GetRenderer().SetDistanceFogColor(Vec4(1,1,1,0.7));
fw.GetRenderer().SetDistanceFogRange(Vec2(10,75));

fw.GetRenderer().SetFarDOF(true);
fw.GetRenderer().SetFarDOFRange(Vec2(5,8));
fw.GetRenderer().SetFarDOFStrength(1.0);

material = LoadMaterial("abstract::cobblestones.mat");

mesh = CreateCube();
PaintEntity( mesh, material );
PositionEntity(mesh,Vec3(0.0f,2.0f,0.0f));

light = CreateDirectionalLight();
RotateEntity( light, Vec3(45) );

PositionEntity( fw.GetMain().GetCamera(), Vec3(0,2,-1.5) );


// Game loop
while( !KeyHit() && !AppTerminate() )
{
	if( !AppSuspended() ) // We are not in focus!
	{

	TurnEntity( mesh, Vec3(AppSpeed()*0.5f) );

	fw.Update();
	fw.Render();

	// Send to screen
		Flip(0) ;
	}
}

// Done
return Terminate() ;
}

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