hidden dots in 3d dot landscape
BlitzPlus Forums/BlitzPlus Programming/hidden dots in 3d dot landscape
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| Hi, I have made a 3D dot landscape in blitz2D and would like to have the dots hidden that isn't supposed to be visible. All the dots have a set of co-ordinates x,y,z and is rotated around the different axis's. Is there a way to find out if a dot should be shown or not? |
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| assign each dot a normal I'm assuming you look in the 3d code archive you can rework that one to your needs. Then if the normal is facing don't draw it. I think you use the erm "dot product" of the camera normal and the dot normal can't remember if it is a positive or negative number that faces the camera |
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