August 08: Neglected and abandoned in the corner

[atomic]

Hey, as i said in the sticky (August 08: cornered) i'm not good at texturing and rendering.
I've been working on this all day now and I still ain't getting what i want

here is a render:
http://img115.imageshack.us/img115/9530/cornered152we7.jpg

As you see i'm having problems with the shadows and i don't know how i can blur the shadows. And i still have to do the texturing of the vehicle, but i don't know how start with it. If someone has a good workflow for doing this stuff please let me know because i'm very new to uv mapping texturing and rendering :p

I also have a ramp on the carpet and i baked it on the fur, but it doesn't show up in renderman, i also don't know why this is happening.

(ps: i'm trying to go for a rusty old worn look for the vehicle)

greetz atomic

[atomic]

hi, i'm still working on shadows and the fur colour but i'm having no luck

here is an update:

http://img92.imageshack.us/img92/3567/cornered153vz6.jpg

any suggestions or comments are stil very welcome :)

greetz atomic

[atomic]

Hi, i have a problem now i was using renderman because mental ray didn't want to render my scene, but now it did want to render.
But when i was ready to render my perhaps final render (because it takes 5 to 15 MINUTES every time i want to render) mental ray renders until one spot and then it says low on memory.

i made a vid to show you better:
Low Quality (http://www.youtube.com/watch?v=_mfTxDPcZmM)

High Quality (http://www.youtube.com/watch?v=_mfTxDPcZmM&fmt=18)

i don't know what to do, if someone know how to fix this please let me know.

[DjVoyager]

That looks really good!

I saw your thread on the issue of low memory, hope some of the replies solved it.

I personally use render layers in such cases, compositing them in Photoshop afterwards.

To answer your above question about texturing, here are some really good tutorials on UV mapping;
http://www.digitaltutors.com/store/home.php?cat=52
For rusty worn look you would need to apply a layered texture, with some parts showing shiny metal while others scrapped off rust. The shiny metal could be a blinn or phong but the rust material would need to have a bump or displacement map on it. I'm assuming your jet bike is separate pieces, which is good for UV mapping.

I'll look into rendering fur with RenderMan.

[atomic]

hi voyager as i said in the mental ray low memory thread mental does render my scene now so i don't have the problem anymor with the fur, but i would still like to know what's causing it if it's not much to ask :)
here one of the last or the last render, I did the texture for the vehicle with an image, i'm even worse at doing this with nodes so i don't think i can do better with nodes. (i would like to know how you do that though, i saw in a topic where someone asked for a rusty metal shader and i don't know who but i thought you aswered with a very nice rusty metal shader :) )

so to get back to the topic, here's the image:

http://img53.imageshack.us/img53/3207/corneredvb1.jpg

when and where should i post the final image?

greetz

[DjVoyager]

Coming along nicely.

Highend3D has some good rust shaders that you can download. DT has some great tutorials on creating shaders similar to rust, though most of it is done through using layered shader.

Btw, is that a painting in the back of the bike or a mirror? Looks like it's showing a ghostly face, dunno if that was intentional :)

You can upload the final image in the DT gallery and send me the link.

[atomic]

ok thanks for the info on the rust shaders.
And lol, it's a painting i didn't do that on purpose. and i don't know where you see that face :)

btw when is the final date i should upload the last image?

[DjVoyager]

Final date is August 31st.

That large golden frame on the back wall is a painting? It's got some white thing, to me it looks like a face, on the top left corner. That's the only thing on it so I thought it might be a reflection of something :)

[atomic]

oh that, no that's a mirror :)
and that white thing is suposed to be a cobweb :p

i don't know why its so blurred, i turned filter off and it still gets blurred i think.

btw: off topic is it possible to commandline render a scene that has spaces in it's name? because i'm making a little tool for me to do commanline rendering easier, and it gives an error when i replace the space with a "%20" wich is normally a space in dos.

[DjVoyager]

Aaaah, now it makes sense, thanks for solving that mystery :D (psst, I really wished it were a ghost, lol)

Yeah, characters like %$&#@ don't sit well with commandline, but you can use _ the under score. It's actually a good habit to replace the space with _ because some machines can't read space. Hope that made sense.

[danlefeb]

btw: off topic is it possible to commandline render a scene that has spaces in it's name?

You have to put quotes around the entire path. For example
"C:\Documents and Settings\Login\My Maya File.mb" will work whereas
C:\Documents and Settings\Login\My Maya File.mb will not.

[atomic]

thanks danlefeb i will try that right now :)

EDIT: yea that works great danlefleb, thanks man :)

greetz atomic

[atomic]

Like this Djvoyager :)

http://img530.imageshack.us/img530/9020/cornered1ao5.jpg

[DjVoyager]

LOL, it's definitely an intriguing addition, but don't add a smiling ghost on my account :D

[atomic]

lol he isn't actually smiling on the model, but now you say it it kinda looks like that yea :p. i'll see what i can do :D

greetz

[atomic]

Like this then :p

http://img169.imageshack.us/img169/3076/cornered1jx3.jpg

[DjVoyager]

Interesting :)

Just a suggestion; you don't a lamp there. It seems a bit out of place.

Did you find out how to do UV mapping? I was thinking if it would be easier to extract some of the faces on the bike and apply a rust map on them, separately from the other parts which will have other material.

[atomic]

What should i do with the lamp you say?
and yea i got the basics of uv mapping i think. :)
tomorrow is the final date, right? but in which category of the gallery should i post my image?

greetz atomic

[atomic]

I'm trying that rusty metal look, and this is what i get:

http://img522.imageshack.us/img522/3934/rusttestce0.jpg

but i don't really want rust all over the place but just on some places, does anyone know how i would go about this?
(the rust shader is done with nodes so it's not an image)

[shamoii]

Have you a link to the shader?

[atomic]

wait just a minute please shamoii

EDIT:
here is the shader network:
http://img172.imageshack.us/img172/966/rustshaderhh2.jpg

and here is the link to the shader itself (i use maya 2008 so you might need to adjust the file if you use another version)
Rusty metal shader (http://rapidshare.com/files/141260343/rusty_metal_Shader.mb.html)

and lol yea very important call :)

greetz

[shamoii]

Ha ha. "Your call is important to us. Please hold the line" Will do;)

[shamoii]

OK first reduce the vein width.
Plug another node (I used crater) on top of the existing marble using the same inputs of that granite.
You'll need to do that for both bump & colour.
This will break up the repetitive nature of the marble.
Also I would plug the same single texture placement nodes into both bump & colour in each instance so you can change 1 thing to effect both.

I have saved a file though am having trouble uploading it & my brother wont be quiet on the xbox so i am afraid thats all the help I can give till tomorow.

Hope I've been of some help:(

[atomic]

thanks for the reply shamoii, but i can't completly follow your actions.
an image of your shader network would be helpfull, if you have time before tomorrow when the deadline expires :)

greetz atomic

[DjVoyager]

You don't need the lamp because from a composition point of view it's throwing off the focus from the bike. Secondly, the question rises, what's it doing on the ground? The other objects are boxes and wood beam which do work with the whole cabin storage concept. The other thing is that it seems like it's hovering, maybe because of the shadow. It's too further away.

Of course, this is just a suggestion. It's up to you to decide whether to keep the lamp or remove it or position it to make it work :)

[shamoii]

No wonder you couldn't follow my instructions. I've re-read them even I have no idea what I'm going on about.

I've tweaked the shader a bit so is shows less rust. I hope you can download it cause it's giving me troubles. Right click
Save as (http://www.whispersmith.com/misc/atom/atom.rar) unpack all files completely then open.

There are 2 phongs in there. doubleRust has half the rust of your original shader, & tripleRust has about a quarter.

This still doesn't give you much control though. You've just got to play around with the 3d texture placement nodes to see if you can get the kind of result you want. ( turn on high quality rendering, it gives a much better indication)

If you really want to put the rust in specific places you are going to h
ave to UV it & paint it somehow in something like Zbrush. The kind of procedural shader you are using is always going to be quite random.

Good luck. hope this has been of more help?



Cat's cradle anyone?
http://www.whispersmith.com/images/misc/hygraph.gif

[atomic]

thanks for the reply shamoii, i tweaked your edited network and it looks better.
i'm still not happy with it though but it takes like forever each time i want to render (10 - 20 min) so i'm just gonna post my last render in the gallery.

THANKS EVERYONE WHO HELPED ME IN MY FIRST PROJECT, it's been fun and i gained some experience. :)

greetings Atomic, may the best win :p