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cody

lib3ds animation

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cody    199
hi guys i have a problem with loading animations from a .3ds-file using lib3ds. i load a file with animation with the lib3ds_open() function, but when i look at the returned structure i cant see any animation data! somewhere i have read that it is possible to load animations with lib3ds... someone who can tell me how? is there a special function for that? and how do i use the animation data? my second question: how does lighting in computergames work? i have used the d3d-lighting in a spaceshooter, but there are only 8 light sources allowed?! in some games there are more lights used i think... 8 lights arent enough for many laserbeams and explosions! thanks for any help!

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dmounty    122
no-one in real life has every object illuminated by every light source.... in general you have all the static lights precalculated with a light map... then you add to that the dynamic lights in the scene. And in general, you only illuminate objects with light sources, that are near enough to have a large impact on that object... so 8 light sources, means 8 dynamic light sources, calculated per polygon... so they don''t have to be the same eight as are used to illuminate another polygon, or object. ie you can pick the 8 nearest light sources to each object, or choose a fixed radius, and only consider light sources, within that radius of the object you with to illuminate.... in reality, you may find that many games use far less that 8 light sources per object, as this could be slow, as it requires a dot product, per vertex, per light source.

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cody    199
thanks for your help

so all i need is a smart and fast function to find the important lights...ok!
i know about lightmaps but in a space game theres no use for this.(i think...)

nice... i only need one more person to solve the 3ds-anim-problem!

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