lighmap help

juguefre

HI, well I finally learned how to do the lightmap and the model looks way better but I still need to know what to do with the actual image I created? does that image have to be "plug" or "connected" to the material in UDK? because I haven't done such thing I just imported the model and put the difusse, spec and normal map in the material and with only those is looking much better, any help will be REALLY apreciated. thanks for your time polycounters.

cptSwing

are you sure you aren't mixing up the terms "ambient occlusion" and "lightmap"? the latter is baked by the engine and you never really handle it yourself. ambient occlusion, on the other hand, is usually multiplied over your diffuse texture in photoshop. don't make it too strong since shadows will be baked into the aforementioned lightmap

Wonkey

Try this for basic materials

http://www.youtube.com/embed/TZQILq7oxNg

juguefre

cptSwing wrote: »

are you sure you aren't mixing up the terms "ambient occlusion" and "lightmap"? the latter is baked by the engine and you never really handle it yourself. ambient occlusion, on the other hand, is usually multiplied over your diffuse texture in photoshop. don't make it too strong since shadows will be baked into the aforementioned lightmap

Ok thank you so much that clear all up, so the image I generate when I do the "lightmap" is mostly useless and can be erased from my PC.

cptSwing

read this entry .. : http://wiki.polycount.com/AmbientOcclusionMap


it can really define the smaller details of your mesh, especially if you're working off a highpoly source.

lightmaps: http://www.polycount.com/forum/showthread.php?p=1098043#post1098043 (also grabbed from the PC wiki)