What is a z-buffer?

Blitz3D Forums/Blitz3D Beginners Area/What is a z-buffer?

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Drekinn

I'm new to the 3D realm of Blitz, and know these must be embarrassingly basic questions, but I'd like to know the following:

1) What is a z-buffer (and z-buffering)?

2) What is meant by the term 'normal'?

I tried scouring the forums for answers but only found obscure references. Any guidance would be most appreciated.