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1. Re: bump map vs normal map?

   

   Reply by Eric Chadwick · Mar 2005 · Home› Technical Talk

   Yeah a slope like that would be a problem, good point. Frankie's example seems like an extreme one, but I'll grant that 256 grays can be limiting. I guess my point is that both have their advantages and their disadvantages. I think it doesn't help to classify heightmaps as being strictly old school. We're working on some…

2. Re: bump map vs normal map?

   

   Reply by Frankie · Mar 2005 · Home› Technical Talk

   A good example of what can be done with displacement mapping. http://www.taron.de/ and http://www.taron.de/Neckling.htm

3. Re: bump map vs normal map?

   

   Reply by Frankie · Jan 2007 · Home› Technical Talk

   What was the immaturity that made you particually sad eric? Are some kinds of immaturity ok, for example do you mind wheelies?

4. Re: bump map vs normal map?

   

   Reply by Frankie · Mar 2005 · Home› Technical Talk

   Hi eric, I don't think what you have said is true. The length of a normal is irrelavant, normalizeing a normal map is probably only nessasary if you attempt to hand edit one. Normal data is extracted from a hightmap to be calcuated on the video card so a normal map cannot be less accurate than a hightmap. Changing the…

5. Re: bump map vs normal map?

   

   Reply by Whargoul · Mar 2005 · Home› Technical Talk

   Here's an example of where they both suck. Yes, it's a bit contrived, but now you can see why all the techy panels in the Doom 3 world or kind of soft, or they slightly bevelled everything on the first place: (these are sized down, so some of it's lost I guess) [img]http://www.members.shaw.ca/whargoul/bad normals…

6. Re: bump map vs normal map?

   

   Reply by Eric Chadwick · Mar 2005 · Home› Technical Talk

   Yeah, same here. I post so I can learn. Please do correct me when I'm wrong. As I understand it, a normal map is what we use on current hardware for bumpage, so a height map has to be converted into one to give you the effect you want. But the height map stores more data, you're just throwing away the extra info when you…

7. bump map vs normal map?

   

   Topic by malcolm · Mar 2005 · Home› Technical Talk

   Can someone explain the advantages of a normal map over a bump map? I did some quick tests in Maya today and the only difference I can see between the two is that normal maps can be generated from hi res geo right out of the box. You will see in my examples that there are a few artifacts on the bump map but this is due to…