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OBD:AKVA: Difference between revisions
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:The usual volume is a right prism (or an oblique prism if the foor is sloped) but there are a few BNVs that are a bit more complex. There's not limit to the number of faces a volume can have but it's probably better to keep this number low. Most BNVs are convex but concave BNVs work too (level2 has some). | :The usual volume is a right prism (or an oblique prism if the foor is sloped) but there are a few BNVs that are a bit more complex. There's not limit to the number of faces a volume can have but it's probably better to keep this number low. Most BNVs are convex but concave BNVs work too (level2 has some). | ||
:The horizontal BNVs never overlap (that might work but it's probably useless) but a sloped BNV can overlap a horizontal one (for example some stairs that are placed in the middle of a floor, see first stairs in level 2). This means that it is possible to have ghost quads placed inside a BNV instead of on an edge. It is unknown if the engine checks that while moving inside a BNV such a ghost quad is interesected. | :The horizontal BNVs never overlap (that might work but it's probably useless) but a sloped BNV can overlap a horizontal one (for example some stairs that are placed in the middle of a floor, see first stairs in level 2). This means that it is possible to have ghost quads placed inside a BNV instead of on an edge. It is unknown if the engine checks that while moving inside a BNV such a ghost quad is interesected. | ||
:It should be noted that the floor of a BNV doesn't always match the visible geometry. Common examples are sidewalks (sometimes they're included in the street's BNV which has a lower floor), stairs and the power lines in level 10. | |||