Lee3dee Posted April 19, 2005 Report Posted April 19, 2005 So this weekend, I took a break from the dragon, and started doing some Normal map experiments. I have this panzer tank i made a while back which was 126,321 polys and I made a low poly version which is 7218, so i model around the tank, so the polys are close to each other. Then render to texture and bam! the normal map is pixelated to hell!. Even when rendering at 2048x2048. The normal map doesn't look like anything i've seen online. Am i doing something horribly wrong , so now its Monday and I'm back to the dragon but I wanted to post my problem for some feedback. 2 models Normal Map with pixelation and craziness low poly with crazy normal map Quote
OL Posted April 19, 2005 Report Posted April 19, 2005 looks muddy but with a skin im sure it will look better models are good tho Quote
kleinluka Posted April 19, 2005 Report Posted April 19, 2005 it would help if you linked to a high res image of the normal map Quote
von*ferret Posted April 19, 2005 Report Posted April 19, 2005 my friend gave this to me today for my assistance also. http://members.shaw.ca/jimht03/normal.html Quote
Lee3dee Posted April 19, 2005 Author Report Posted April 19, 2005 kleinluka :here's a high rez image, rendered from Render to texture http://www.lee3dee.com/redux/panzer/NormalsMap2.dds von*ferret: yeah i got that link, and a ton of others Quote
von*ferret Posted April 19, 2005 Report Posted April 19, 2005 go ahead and post them. Lets get a thread started and stickied with links to modeling, mapping, ect. Help the forums out a little. Quote
mikezilla Posted April 19, 2005 Report Posted April 19, 2005 just looking at it from a glance i can see some odd uvw errors. try remapping a small piece very cleanly and see how well that converts to a normal map. Like one wheel. Quote
sic1 Posted April 19, 2005 Report Posted April 19, 2005 just looking at it from a glance i can see some odd uvw errors. try remapping a small piece very cleanly and see how well that converts to a normal map. Like one wheel. Good advice. I had fun playing with normal maps for doom3. I finally sorted out the issues and found it that it was my uv mapping that was causing weird things to happen. I think at one point I had problems when UVs overlapped. Quote
Lee3dee Posted April 19, 2005 Author Report Posted April 19, 2005 I think at one point I had problems when UVs overlapped. ahh, then i think I know, because the UV's for the other side of the tank are mirrored. I guess u cannot do that with normal maps Quote
Lee3dee Posted April 20, 2005 Author Report Posted April 20, 2005 so....i broke up the model, top and bottom. Figured im compressing so much data into the normal map 2 textures are better than one. Not sure if thats the correct way. LOL anyways, now my normal map is brown....anyone have any thoughts? the discreet guy made it look so easy at GDC. Quote
von*ferret Posted April 20, 2005 Report Posted April 20, 2005 man all your angles look so sharp I dunno if its the Normal map or not. I h ave NO idea why its brown. Never seen a brown normal map before. Quote
von*ferret Posted April 20, 2005 Report Posted April 20, 2005 my friend says your blue channel is invereted, so invert it and see if that works. Quote
von*ferret Posted April 20, 2005 Report Posted April 20, 2005 awesome friend says: if you have a problem with a normal map look at the channels separately Quote
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