Texture question

polygonfreak

I want to really understand how normals work. I have seen this effect with the dark outlines before but never knew what it was. The model just has a diffuse and normal map applied and I am using a real time shader. I would love to know what I am missing. By the way, when you look at the model from straight on, it looks perfect.

ZacD

your normals are way too strong. And probably inverted.

tristamus

Is this in Maya?

Something's wacky about your normals. Are you using Viewport 2.0? Are you making sure you are using "Tangent Space Normals" and not leaving it on "Bump" under your material's bump mapping expression??

Also, looks like you took a photo and made ONE pass through crazybump, nDo, etc, and are trying to use it on something...that's generally no good.

Search the forums and internets on how to make a normal map properly! All the information is out there.

polygonfreak

Its in 3ds max and I used 3 point shader. and you are right, I made it with xnormal in photoshop. I have spent so much time on baking high poly, so time to move onto making good normal maps out of photos. Do you recommend and good tuts on normal maps?

BradleyWascher

normals are to strong, turn it down a little, another thing to think about is that you have to much high frequency detail in the nrm right now, aka ( every single crack imperfection). You need the nrms to support the larger shape first( the actual planks) then add in very little nrm detail like the cracks.

LateWhiteRabbit

polygonfreak wrote: »

Its in 3ds max and I used 3 point shader. and you are right, I made it with xnormal in photoshop. I have spent so much time on baking high poly, so time to move onto making good normal maps out of photos. Do you recommend and good tuts on normal maps?

If you made the normals in an external program like XNormal, you need to flip the green channel to view it correctly in 3DS Max.

Likewise, if you bake out normals in Max, you need to flip the green channel in Marmoset or whatever other engine you are using.

SpeCter

You can actually change the green channel in xnormal to the behaviour you want...(same goes for 3dsmax)

jeremiah_bigley

On that flipping the green channel thing (because when I first heard that I thought people were smoking something) all you have to do is load the normal map in photoshop, under channels, invert the green channel.

SpeCter

Why not change it before baking/calculating it...