Inverse Normalmaps: Difference between revisions
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{{Original_Reference|ascottk|4244}} | |||
Since this issue has come up a few times while looking at the textures, I thought I may post a way to visually check to see if the normal map has been generated correctly. | Since this issue has come up a few times while looking at the textures, I thought I may post a way to visually check to see if the normal map has been generated correctly. | ||
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The normal map should look like it's been lit up by different colored lights like this: | The normal map should look like it's been lit up by different colored lights like this: | ||
http://img327.imageshack.us/my.php?image=checkingnormalmapsse3.jpg | |||
And another issue that's come up is generating normal maps, via the nvidia normal map plugin, straight from the diffuse texture. Here's a tutorial link to make normal maps from height maps: | And another issue that's come up is generating normal maps, via the nvidia normal map plugin, straight from the diffuse texture. Here's a tutorial link to make normal maps from height maps: | ||
http://www.quake3bits.com/htm/tutorials/ | http://www.quake3bits.com/htm/tutorials/creating_bumpmaps_from_images.htm | ||
You have to be careful with gradients if you want rounded edges. This plugin interprets those as being angular so you have to use a gaussian blur in order to get decent rounded edges. | You have to be careful with gradients if you want rounded edges. This plugin interprets those as being angular so you have to use a gaussian blur in order to get decent rounded edges. | ||
[[Category:Textures]] | |||
Revision as of 15:09, 10 September 2006
Originally written by ascottk on http://forums.thedarkmod.com/topic/4244
Since this issue has come up a few times while looking at the textures, I thought I may post a way to visually check to see if the normal map has been generated correctly.
The normal map should look like it's been lit up by different colored lights like this:
And another issue that's come up is generating normal maps, via the nvidia normal map plugin, straight from the diffuse texture. Here's a tutorial link to make normal maps from height maps:
http://www.quake3bits.com/htm/tutorials/creating_bumpmaps_from_images.htm
You have to be careful with gradients if you want rounded edges. This plugin interprets those as being angular so you have to use a gaussian blur in order to get decent rounded edges.
