How to make a object with a texture and a env map?
One Material has eight texture channels. I guess the first channel is filled by your texture now. Just click on the second channel, add a new texture and make it the env map.
The channel buttons are the long ones on top right.
Actually, the EnvMap must be in the first texture slot. You can add whatever you want in the others.
All should be fine if you do that.
BgDM
Actually, the EnvMap must be in the first texture slot. You can add whatever you want in the others.
All should be fine if you do that.[/quote]
that is only true if you do not have a bump map. Otherwise, you’ll probably want the bump map to influence the envmap, so you have to put the envmap AFTER the bumpmap.
Martin
theeth has spoken and I guess he spoke the pure truth…
I have already noticed that bump / env thing, but what now is THE rule for the texture channels? What is “to influence” really? Where should the spec map be then?
THEETH I BEG FOR YOUR COMMANDMENT
Textures are influenced by the one assigned in channels before.
Depending on the mapping used, this will not have any effect. For example, a bump map, which changes the heading of the normals will not affect a color texture mapped with ORCO, since the ORCO mapping does not depend on the normals. That is why you should put bump textures before env maps, since the mapping used by env maps (Refl) is based on the heading of the normal.
The only two mappings that are affected by the normals (ie: the ones affected by bump maps) are REFL and NOR.
The order of the texture is also important when using stencil textures.
The usual order is bump map first, than whatever color maps you have. Spec maps can be anywhere in that order, but I, for myself, usually puts them after color maps.
Martin
OK theeth. That explains some things for me. However, I have used bump maps with env maps previously and not noticed any difference in the render whether the bump is first or not.
Maybe it is different, but subtle enough that I don’t notice it.
BgDM
When the bumpmap (try it with a stucci) comes after the env map, you will see the bumps, but they don’t really bend the surface. The env map will remain plain.
It is a huge difference when you put the bump before the env.