I see...you can derive the euler angles from the matrix and create a new matrix with only a sub-set, but i'm not sure if the results will be satisfying. The basic problem is that an unlimited number of cascaded transformations result in the same output. The derived angles are just one way to do it...anyway, here's some code: http://www.jpct.net/forum2/index.php/topic,1191.0.html

Thanks, that helped :-)

Also, I've noticed that if there is solid objects behind transparent objects, it will render the solid objects behind as transparent as well.
We had the same issue in the iPhone version, which was solved by setting a glColorMask after drawing transparent stuff (http://stackoverflow.com/questions/10450680/isgl3d-transparency-issues)
Is it possible to somehow implement this in your engine?

A totally different question: I use a rotation matrix to set the position of the car in 3D.
Is it possible to set the rotation around a specific axis to 0?
Lets say I only wanted the rotation matrix to rotate pitch and roll, not yaw, of the car.

EDIT: I was thinking it might be possible to pull just the two vectors out of three from the matrix, and applying them to the model, not completely sure how to do that though.

Another thing. When loading via: model = Loader.loadSerializedObjectArray(getAssets().open("model.ser"));
Is it possible to somehow check when the loading is done? I need to load the car in the background, as it takes a lot of time.
but the .loadSerializedObjectArray() function starts a new thread in the background when run, which means I can't just wait for the function to finish.

EDIT: Looks like from the logs that its not loading the model itself thats the problem. But its adding it to the scene.
If I load it before entering the activity, it still takes a while to show up, a while after the onSurfaceChanged have run.

I'm not sure what you mean. Maybe you can highlight it in the screen shot somehow.

Try looking at the right side door. Its full of small white lines/cracks

Thanks! I really appreciate your help.

Although, there seems to be a problem with alpha in the shader. I've checked all the vec4's, and none of them has an alpha that would explain this :-/

The equivalent of gl_NormalMatrix is modelViewMatrix...well, not really but as long as you are only using uniform scaling (which you do, because jPCT doesn't allow for aynthing else), you can simply replace something like

Code: [Select]

vec3 n = normalize(gl_NormalMatrix * gl_Normal);

by

Code: [Select]

vec3 n = normalize(modelViewMatrix * vec4(normal,0.0)).xyz;


Thanks. Im 100% new to shaders. Theres a few more functions and variables It can't seem to find:

05-18 11:32:05.278: I/jPCT-AE(27583): ERROR: 0:9: 'ftransform' : no matching overloaded function found

If you have the former shader available, you should be able to port it to be used by jPCT-AE. After all, it's all standard GLSL code. You will most likely have to make it use jPCT-AE's naming conventions for uniforms and attributes that can be found here: http://www.jpct.net/jpct-ae/doc/com/threed/jpct/GLSLShader.html

Thanks. I used a default shader in JME, which I've tried porting already using jPCT naming conventions for shaders, but there's a lot of stuff that simply won't compile in it.

I just need a simple reflection shader for this project though.

Have you the newest version?

http://www.jpct.net/forum2/index.php/topic,2708.msg20009.html#msg20009

I certainly have ;-)