I'd temporarily store/clone the RotationMatrix of the camera on the moment you enable the freecam. This means you'll have the last known camera rotation matrix which was used when the camera used #lookAt(...). Then instead of doing #lookAt(distantDummy), you do #setRotationMatrix(temporaryMatrix)

Essentially I have a camera looking at and following a vehicle as it moves around in 3d space and sometimes I'd like to disable the lookat and start a freecam.
i.e turn of the cameraLookAt temporarily to be able to move around by translating the cameras position, maintaining its rotation.

I've so far tried to create a distant point to replace cameraLookAt(vehicle) with cameraLookAt(distantDummy) but im not quite satisfied with the solution.

Has anyone done anthing similar?

Thanks

Yes, sure...the software renderer will work just as it is on a Pie.

what about the software renderer of jpct? although slow, it is useful in some cases.

Afaik, you can even run Android on a Raspberry Pi which has proper OpenGLES support. In that case jPCT-AE could be used.
But then again, I would argue that you can make jPCT work on a Linux distro too (Raspbian or such). I would believe that there should be some sort of OpenGL support available as for how popular the Raspberry Pi is. It might not work as seamlessly as on Windows but I wouldn't know for sure until someone tried

No, not as it is. While you can run a JVM on these devices, I don't think (correct me, if I'm wrong please) that there is an OpenGL (ES) binding for Java available on these devices. Without that, it can't be ported.

does jpct work on these devices?
there devices are marketed as computers for students. if jpct works on them, more students would get to know jpct. 

Order matters here. jPCT culls away back faces (unless you disable this with setCullling(), but the lighting will be wrong in this case). What is a back face and what isn't is defined by the order of the vertices in a triangle. In this case, reverse the order of the vertices for the faces that aren't visible and they should show up.

Hello friends. How does JPCT-AE Vertex works on Object3D.addTriangle(...)?

public static Object3D createCube(float scale) {
Object3D o = new Object3D(12);
float size = scale / 2;

// FRONT
o.addTriangle(new SimpleVector(-size, size, size), new SimpleVector(-size, -size, size), new SimpleVector(size, size, size));
o.addTriangle(new SimpleVector(size, size, size), new SimpleVector(size, -size, size), new SimpleVector(-size, -size, size));

// BACK
o.addTriangle(new SimpleVector(-size, size, -size), new SimpleVector(-size, -size, -size), new SimpleVector(size, size, -size));
o.addTriangle(new SimpleVector(size, size, -size), new SimpleVector(size, -size, -size), new SimpleVector(-size, -size, -size));

// LEFT
o.addTriangle(new SimpleVector(-size, size, size), new SimpleVector(-size, -size, size), new SimpleVector(-size, size, -size));
o.addTriangle(new SimpleVector(-size, size, -size), new SimpleVector(-size, -size, -size), new SimpleVector(-size, -size, size));

// RIGHT
o.addTriangle(new SimpleVector(size, size, size), new SimpleVector(size, -size, size), new SimpleVector(size, size, -size));
o.addTriangle(new SimpleVector(size, size, -size), new SimpleVector(size, -size, -size), new SimpleVector(size, -size, size));

// UPPER
o.addTriangle(new SimpleVector(size, size, size), new SimpleVector(-size, size, size), new SimpleVector(size, size, -size));
o.addTriangle(new SimpleVector(size, size, -size), new SimpleVector(-size, size, -size), new SimpleVector(-size, size, size));

// LOWER
o.addTriangle(new SimpleVector(size, -size, size), new SimpleVector(-size, -size, size), new SimpleVector(size, -size, -size));
o.addTriangle(new SimpleVector(size, -size, -size), new SimpleVector(-size, -size, -size), new SimpleVector(-size, -size, size));
return o;
}

Result:

Quote from: Hellfire on November 22, 2022, 12:39:50 PM
Thank you, its working, i didn't have the perfect texture though 

Glad to hear!

For a joystick, I'd recommend a PNG file as texture (where the outside is transparent), otherwise a JPG texture (where the outside is black).
Make sure to use the constructors in Texture that have 'useAlpha' (which you should then set to true): https://www.jpct.net/jpct-ae/doc/com/threed/jpct/Texture.html#Texture-Bitmap-boolean-