Hello,
I went through example 3-3 in the book, and expected an output similar to the one of figure 3-3, and as explained by the section.

However, the lighting is not hitting Momo, and there is no lighting effect on the model as it is rotating.

Instead, my Momo is all green, blue, and black, and the colors cover the complete model instead of hitting it from a lighting angle.

Any clue?

Thanks.

I have run the code on a HTC Android and it worked as expected:

1. Momo is white
2. As Momo rotated, the model in the location of viewer is more intense (hit by the light)

It seems there is something with the supported colors on the other android device I am using, or needs some more tweaking.

I am new to game programming, so if anyone has a clue or some guidance, please let me know.

I shall also keep investigating.

Thanks.