Unfortunately I cannot model the cubes with a 3D editor, since the idea of the android application is to generate dynamically the models  by reading info from XML files. However I think I can use one basic texture and generate the other textures only when and if needed. That would reduce the number of textures and should speed things up a bit.
Cheers

Thank you.
Using coloured textures does indeed solve the colour issue, but the performance hit is massive.  I am trying now to build a 15x15x15 matrix of cubes. If I leave the coloured textures out of the code, all the cubes are drawn and the frame rate is a very happy 60fps. But if I include the textures (one per cube) only about 500 of the cubes are shown and the frame rate drops to about 17-20fps
mmmmm back to the drawing board for me then.
Thanks again!

OK I forgot to mention something that may be important here. I wanted all the cubes to rotate together, so after creating all the cubes i also merged them into a single Object3D with MergeAll()
Could it be that the color is lost when merging? and if so, is there a way to fix this?

Thanks again for your time.
The values returned by getAdditionalColor() are the correct ones for all cubes.
I am using OpenGL ES 1.1
Cheers

Thanks for your reply. This is the code I have and I tried ambient light from (0,0,0) , which made my cubes very dark grey to 250,250,250 which made them almost white
world = new World();
world.setAmbientLight(0, 0, 0);

sun = new Light(world);
sun.setIntensity(250, 250, 250);
the colour I have for the cubes at the moment is red=241 green =90 blue=43

Hi everyone,
first post here with a problem that probably is incredibly daft, but as I have just started out with both JPCT and android coding  I hope I will not get told off too badly for my question 
I want to visualise a model which is made of cubes and cylinders (1000+ cubes usually and cylinders, well I am not sure how many of them yet).
I am using the primitives to do this and I have been able, so far, to visualise the cubes just fine. However, when I try to add a solid colour to the cubes all I get is  grey cubes (the grey shade changes according to the ambient light), but there is no trace of the colour I wanted for my objects. This is what I have done:
public Object3D MakeCube(float size, float posX, float posY, float posZ, int red, int green, int blue) {

Object3D acube = Primitives.getCube(size);
RGBColor cubeColour= new RGBColor(red,green,blue);
acube.setAdditionalColor(cubeColour);
acube.rotateY(-(float) Math.PI/4f);
acube.rotateMesh();
acube.translate(posX, posY, posZ);
acube.translateMesh();
acube.strip();     
acube.build();

return(acube);
}


Where am I going wrong? thanks in advance for the replies.
Cheers.