Sorry, this is probably another noob question, but having looking through the javadocs, I cannot seem to find an explanation.

I created a new object (a rectangular plane) by:
Object rectangle = new Object(2);
rectangle.addTriangle(blah); rectangle.addTriangle(blah);

This works fine and I've been able to create a simple rectangle and colour it or apply to a texture to it.

I wanted to use billboarding so that the rectangle would always appear as a rectangle, regardless of the camera angle. However, when I try rectangle.setBillboarding(Object3D.BILLBOARDING_ENABLED) the model disappears.

Ideas?

Howdy,

I've been experiencing a weird effect when I do:
camera.align(someObject3D);

In one particular case, it seems to cause the light level of my world to dramatically fall. Objects don't appear unless the camera is pointed directly at them and is close up. For example, the following screenshot occurs by carrying out the camera alignment (above):



If I manually reset and rotate the camera in this way:
camera.getBack().setIdentity();
camera.rotateCameraY(someObject3D.yRotationAngle);
camera.rotateCameraX(someObject3D.xRotationAngle);

The shot appears (correctly) like this:



Obviously I've resolved my problem by finding another way to do what I wanted to achieve, so it's not urgent.
But I thought someone here might like to know on the off chance that it's a bug in jpct. I cannot understand how aligning the camera would affect the light levels. But since that's the only line of code I'm changing, I can't see what else it would be.

Agh!

I've come across a problem, and I cannot figure out if it's a bug in JPCT or a bug in my code. I've double and triple checked everything and I cannot seem to find the cause of the problem.

I have reproduced the problem by modifying the fps demo. My aim is to store independent camera settings in a set of object array variables. Note that in this example, there is only one setting in the arrays:

private SimpleVector[] storedPosition = {new SimpleVector(STARTING_POS)};
private SimpleVector[] storedDirection = {new SimpleVector()};
private Matrix[] storedPlayerDirection = {new Matrix()};

A new function swaps the camera object with one of the values in the settings. Again, for the purposes of this demo, the value which is swapped in is arbitrarily fixed at index 0.

protected void swapCameraWithStoredVariables()
{
SimpleVector swap;
SimpleVector swap2;
Matrix otherSwap;

swap = storedPosition[0];
storedPosition[0] = camera.getPosition();
camera.setPosition(swap);

swap2 = storedDirection[0];
storedDirection[0] = camera.getDirection();
camera.setBack(swap2.getRotationMatrix().invert3x3());

otherSwap = storedPlayerDirection[0];
storedPlayerDirection[0] = playerDirection;
playerDirection = otherSwap;
}

This function (swapCameraWithStoredVariables ) gets called at the top and bottom of the doMovement() function.

Finally, in gameLoop, I added two lines to set the camera to use the stored values. This occurs immediately before the poll() function:

camera.setPosition(storedPosition[0]);
camera.setBack(storedDirection[0].getRotationMatrix().invert3x3());

Once more, in this example, the camera is set to display a single camera.

To my knowledge, adding this code should have no effect to the operation of the fps demo. All it does is copy the stored variables in to the current camera to carry out any movement. When the movement is calculated, the values are copied back to the stored variables. When the scene is displayed, the variables are loaded in to the camera object.
Therefore, it should behave as the original fps does.

However, in practice, the forward/backward controls move at right angles to the camera direction. For example, if the camera is pointing straight ahead, the forward/backward controls move the camera left and right (strafing).

I cannot for the life of me, determine why this is happening. Is it a bug in my code, or a bug in jpct?

I can supply the modified fps demo code if required.

Hello,

After many months of failing to find good MD2 models for humanoid animation, I started looking in to MD5s.
Has anyone manager to product a JPCT importer for MD5 models? Or are there any plans to include one in JPCT in the near future?

I had a go at porting the jMonkey MD5Importer. By removing all the jMonkey references, and using a couple of classes from Cyberkilla's skeletal API, I've managed to make most of the classes compile. But I just don't know enough about JPCT to complete it.

Okay!

I have a 3DS model of a hollowed out area.

I've imported it at scale 1 and exported it to XML (file1).
I've then taken the same model, imported it at scale 17 and exported it to XML (file 2).

If I open file2, everything behaves as it should. I can move my camera around and checkCameraCollisionEllipsoid produces something sensible when I collide with things.
I can produce exactly the same appearance/view if I import file1 and use .setScale(17) on the resulting model. However, if I set the camera to exactly the same location, checkCameraCollisionEllipsoid continually detects collisions. Even when there's nothing visibly colliding with the camera.

I'm not quite sure why this should happen, am I doing something wrong with setScale? Do I need to do something else after calling it? The only thing that I can think of that might cause this problem is that the original model of file1 is still present, even after calling setScale(17) and only the resulting modification of the model after calling .setScale is visible.

Any clues? It's really hurting my brain

Hello,

Is there any way to determine, in the texture manager, which textures are dummies and which textures have already been loaded? I notice that I can get the current dummy texture, but how can I tell which references in the texture manager were created when I loaded some structure and which point to some actual texture in memory?

I assume it's not sufficient to do an equlity test with the current dummy texture, as they each have different names. I also notice an "isEnabled" function for Textures, but I'm not exactly sure what this represents and when it's set.

Specifically, I'm trying to load a structure from XML and then load the textures that are referenced by the XML document. I don't want to load the textures in advance.

Hello,

I'm trying to find a quick way of making the insides of some caves in JPCT.

Might anyone have a good idea of any tool which might be available to make this fast and relatively pain free? I've seen various terrain editors, but they usually only operate on a single plane. I've also considered building one, but I'm not entirely confident of my algorithmic polygon skills

Any ideas?

Cheers!