Irrlicht Engine

UTF-8? I don't think there is any such thing as 16-bit characters. Maybe you mean UTF-16?

The code seems to be asking:

"Is the camera inside the node bounding sphere?"

I guess the answer is:

"No!"

I don't know Android, but why do you try to create the file with fopen(.., "w+") when fopen(.., "w") is all you need? You could also check the mode the file is created in, it may be write only. I think fopen() has a third parameter for this. You could also check the mode of the '...

Print out fileName.c_str().

You didn't check the return from

AAsset* configFileAsset = AAssetManager_open(assetManager, (char*)fileName.c_str(), AASSET_MODE_BUFFER);

Does your cube have outside and inside surfaces?

It looks as if you draw the floor plane after the object. The bounding box is not written to the depth buffer.

You've got this backwards:

uvCoord = OUT.uvCoord;

The pixel shader does the "baking". The vertex shader just flattens the scene, proportionately to the UV coordinates. In any case, the picture of the UV map is what you asked for!

In the vertex shader you could try setting x = u, y = v, z = far/2.

Have a look at your texture coordinates (vt). They should be 0 and 1 in the ideal case. The range (eg .25 - .33) is 1/12, which is why scaling by 12 works. But it is in the original assignment where the problem is. No need to triangulate quads as the algorithm is really simple. Quads can't be concave!

Check the console output.

Maybe just run a bloom filter.

I don't grok Render Monkey so I don't know if it even uses the projection matrix. Also, you use GLSL so I can't help you there. But I would just stick with the view and object matrices. If your lighting doesn't look right, your tangent matrix may be transposed. I know there is a lot of bad code on t...

You shouldn't be using the projection matrix at all. It collapses the view frustum into the unit cube. The inverse would map the unit cube into the view frustum. Points in the view frustum can be sent anywhere by the inverse. How can that help?