Why are there waves in my rectangle?

BlitzMax Forums/BlitzMax Beginners Area/Why are there waves in my rectangle?

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Then yeah a year ago. But I stoped in the middle of that because I bought Nuclear Fusion(Beta DX9.. 3D Engine for c++) which I messed with it for quite awhile but now I'm waiting for version 3.05 of NF to restart 3D so I came back to BMax and I'm getting the hang of it unlike last time, last time I tried BMax i got frustrated with it.

Demo might expire after 30 days but that doesn't mean you can't just re-install the program amongst other things ;)

But since I'm getting the hang of it, I'm getting interested into buying it :)