New to 3D and boards =)

soulstice

Hey guys, I'm an art student who is going to be learning 3D in my upcoming term. So recently I've been reading some tutorials online and decided to take a dive into creating my first model. So here it is.

As you can see the model looks a bit weird in the render, I'm not really sure why there is weird shading around the eye sockets and mouth. Hopefully someone can point out my ignorance on this subject, as I'm still trying to absorb everything. Thanks!

DarthRevanII

you have those wierds edges because of the smoothing, i dont have a lot of time to explain that but maybe someone else can, but you have to change smoothing groups in different areas

Also, you have a lot of horrid edges. The bridge of the nose between the eyes for example, what you have made there is two faces that do not resemble a square or rectangle. You can't have faces like that, it helps in causing awkward shadings. Every face is actually divided into two triangles, and in your case, it just so happens the line dividing the two "triangles" goes intobetween the bottom right and top left vertice
However, if thta wasn't the case, there would be an edge going from the bottom left to the top right vertice, causing it to break the surface of the mesh, causing an ugly shade. Along with this, *****NEVER**** everrrrrrrr, have a 5 sided face/poly. They are bad! >:O, and that's what you've created :P. It's ok just fix it (cut another edge from the bottom right to the top left vertice's), and for the other side of the face, vice-versa

So with that said (if you understand it), you can see that the edges around the mouth and everything are stretched extremely and maybe even a few of those errors there. Basically, the mesh you've constructed won't animate well (like the diamonds at the corners of the mouth)
Your lighting/rendering scene might also be causing the shadows, not sure how you have it setup


Besides those issues, not too bad...it's a bit too skinny though

soulstice

Hey Darth, thanks for taking the time to explain that to me. So basically if I understand correctly, I should always keep to quads and the quads have to be actually shaped as a square or rectangle otherwise this can cause distortion? I kept that head all on smoothing group1. I'll play around with smoothing groups and see if I can get better results. I seem to have a hard time understanding how to keep everything in quad especially the transition between tight poly areas to areas like the side of the face where polys might not necessarily be as high. I probably sound like a big noob.

While waiting for some answers I actually took it into Zbrush and tried to play around with it. What a fun program !


***Theres a gap o the side of the face I think I forgot to weld some verts there.


I'll go back and try to build another face now and see if I can avoid those things you've advised me!

DarthRevanII

no no no, you can have "distorted" faces, but when they are extremely small, and in areas that a lot of movement would occur, there is a high risk for bad shading

Stick with Quads and Tri's, never anything passed a 4 corner poly

With your update, things look a little blocky and chunky ...and I think that may have happened from my innability to say what I was trying to get at

Your chin protrudes out too far, your lips are extremely swollen, and something wrong in the eye/nose area, but not sure what

Hope this helps a bit more ...maybe someone on this board who isn't tired can help out a bit more

soulstice

Ahh ok I think I get it. Thanks again Darth!

Ya the face is a bit blocky, I kinda exaggerated some of the features.. not really a great sculpter still learning.

Asthane

[ QUOTE ]
Along with this, *****NEVER**** everrrrrrrr, have a 5 sided face/poly. They are bad! >:O

[/ QUOTE ]

I'm curious as to what brings this extreme reaction? In my experience. Five-sided polygons are smoothed the same as tris-- they're best avoided because they can create irregularity in your surface the same as tris and poles, but it's just that, the same as tris and poles. Some quick googling shows zbrush handles them same as any other app and other than some beta versions of mudbox, I'm pretty sure it's the same there, so what's the big deal?

As for avoiding them, circular formations of loops will help this a lot and help get rid of the gridded-ness that's commonly seen when you have more loops than you strictly need to define a shape. Do some experimentation-- it's quite easy to turn a loop 90 or 180 degrees if necessary.