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User talk:Neo: Difference between revisions
2x2 cents
(follow-up q. and my $0.02 on dynamic shadows) |
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--[[User:Iritscen|Iritscen]] 16:28, 21 October 2008 (CEST) | --[[User:Iritscen|Iritscen]] 16:28, 21 October 2008 (CEST) | ||
:It seems to me that Iritscen and Neo mean different things when it comes to "those crates" in the Warehouse. The decal mentioned by Neo is just the round shadow texture, projected downwards from the player's position onto all non-vertical quads (even those flagged as walls), which looks weird when the quad is a nearly vertical wall. Iritscen's question, however, seems to be about "shadows cast by objects", in this case, by the crates themselves. As Neo said, environment lighting in Oni starts and ends with baked vertex colors, which were computed from light sources; this is never very accurate for coarse geometry, and the exact algorithm that was used is unknown: we don't even know for sure if the vertex colors were authored in Max/AutoCAD or if they were generated by Oni-specific code. Triangulated meshes have real-time Gouraud shading instead (and env mapping). | |||
:As for the shadows in the 1999 trailer, they were definitely ingame stuff. Like Iritscen says, they're just vertical projections of the character's body. One solution was to draw a round shadow for every one of the 19 bones, but I think what we see is essentially a set of decals based on the dynamic pathfinding grid. I wouldn't be surprised if those shadows used the same code as the pathfinding algorithms: if the body of a character is detected above a certain grid square, that square is flagged as an obstacle ''and'' a shadow decal is drawn on it. As for why those shadows were scrapped: they're not too distractive in the trailer (which is why I hadn't noticed them until now; honest), but since they're based on an axis-aligned grid, they'd look awful in a lot of situations. I'm glad we have a smooth, round shadow now, not some dark tiles flashing in and out as we move. | |||
::[[User:Geyser|geyser]] 17:12, 21 October 2008 (CEST) | |||