My guitar

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My guitar // Work in Progress

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Post by classic12 // Oct 5, 2007, 1:21am

classic12
Total Posts: 243
I modeled my dad's guitar that i spent like 2 weeks learning then left it lol.. took about 2 hours or so because im not very good with all the tools to make things shorter but here it is.


C&C welcome.. couldnt get the materials to stop being so damn shiney tho lol so most of the detail you cant see but its in there.


http://img504.imageshack.us/img504/5435/overviewzq0.jpg


http://img261.imageshack.us/img261/6348/headld1.jpg


http://img261.imageshack.us/img261/3643/guitarbaseoq8.jpg


http://img167.imageshack.us/img167/6682/baseupcloseqj7.jpg


http://img167.imageshack.us/img167/7273/basecloserch1.jpg

Post by Jack Edwards // Oct 5, 2007, 1:29am

Jack Edwards
Total Posts: 4062
pic
Hey classic is that a realtime grab or a vray render?


-Jack.

Post by classic12 // Oct 5, 2007, 1:30am

classic12
Total Posts: 243
v - ray had to type 10 letters so blah lol

Post by Jack Edwards // Oct 5, 2007, 1:37am

Jack Edwards
Total Posts: 4062
pic
Ok. You may want to change the AA settings, because the strings shouldn't show up like that. It's definitely a bug.

If it changing the AA fixes it, then it's an AA bug. If not then it's a VRay bug. I saw this one with my Harp as well. It has something to do with narrow parallel lines.

Also go through and apply some normal smoothing to the knobs so they don't appear so facetted. Unless you want facetted. ;) Another thing that will help is to delete all the lights in the scene except for two spot lights, then use GI to light the guitar. HDRI or an image in the background will also help to give you reflections. What makes things look shiny is really reflections showing in the material -- but they need something to reflect. Also unless your material is giving off light, you probably don't need to go over a 50% value for your color. So bright red would be (R128, G0, B0). Though in real life things are rarely truely just a primary color so it's worth adding a bit of gray in there too -- (R109, 10, 10). ;)

For your metals, use a dark color and let the highlights show from reflections. That will help as well. Keep in mind that objects that we think are white in real life are really some shade of gray. How white they look just depends on the other colors around them and the amount of light.

-Jack.

Post by classic12 // Oct 5, 2007, 1:42am

classic12
Total Posts: 243
thanks jack im rendering with v-ray then saving the image as jpeg i hope its right lol.. ermm how do i do the colour changer as ive just used the v-ray materials or is that the wrong way to go about it?

Post by Jack Edwards // Oct 5, 2007, 2:29am

Jack Edwards
Total Posts: 4062
pic
If you click on the material inspect icon it will open up the Material Editor, click on the material you want to sample. Then you can double click on the 4 balls in the Material Editor and select the shaders you want to use. Then you can change the color and shininess, reflection, all that stuff. :) To apply the changes to the selected object, with the object selected, click on the paint funnel.

To open up the VRay options. Right click on the Vray icon.

Post by classic12 // Oct 5, 2007, 2:50am

classic12
Total Posts: 243
oo okay thanks jack very much . What would you say about the general model tho does it look good bad uggly? i didnt really understand how i was gonna do it so i just tried shape it with a box n smooth it >.>

Post by Jack Edwards // Oct 5, 2007, 2:55am

Jack Edwards
Total Posts: 4062
pic
In the third picture you can see some oddness in the geometry for the upper left of the body.


I could probably help you more if you post a wireframe grab so the geometry construction can be seen.

Post by classic12 // Oct 5, 2007, 2:58am

classic12
Total Posts: 243
oooooooo this is gonna be funny lmao u will see the wireframe lol i made it as a box using free hand draw thing.. drew the shape on the top then deleted everything else around it, then did the add face to the bottom of it im w8ting for a high def screen shot to finish loading and then ill post you the wire frame looks like spagethie (teach me to spell) junction.


http://img210.imageshack.us/img210/4373/guitarvq6.jpg

Post by Jack Edwards // Oct 5, 2007, 4:10am

Jack Edwards
Total Posts: 4062
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First problem is that it's not quads. ;)

Working with SDS is a bit different than modeling out an object as polygons, so you have to think slightly differently when modeling. You can think of the mesh for SDS as a "cage" and the SDS object fits inside it like a circle fits inside a cube or an oval inside a rectangle.

Here's an example of how you could better use the edge loops to create your guitar shape:
8801

Post by classic12 // Oct 5, 2007, 4:28am

classic12
Total Posts: 243
ooo you see thats why your kewl and im not lol thanks so is that just adding loops to the box then moving them around accordingly? thanks again jack

Post by Jack Edwards // Oct 5, 2007, 4:47am

Jack Edwards
Total Posts: 4062
pic
Well I used extrusions for the two parts sticking out...;) But other than that yeah, just a cube and the add loops tool, then moving stuff around a bit.


Seriously Classic, I'm not all that. :o There are others on this forum that can model circles around me. It's just a matter of practice and learning the tools. Learning how to best use selections is one of the most important parts.

Post by classic12 // Oct 5, 2007, 5:01am

classic12
Total Posts: 243
hey if you stood still i could model a circle around you im not that usless ahahahhahahaha

Post by Nez // Oct 8, 2007, 4:34am

Nez
Total Posts: 1102
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Jack's too modest!

He does make SDS look very easy - his meshes, edge loop positioning etc are always very neat and well thought out. I'm only just starting out with SDS really, but I've seen a number of his wireframes and the all look very tidy! I'm trying to learn from them...


Classic - it would help me a great deal if you were able to upload some real photos of the guitar as a reference (either reduced so that you can upload them to the forum, or posted somewhere like imagshack, or even just emailed to me). I'm a guitarist and own several instruments and can see a few things that look slightly odd, but I guess some of them may just be specific to this instrument, which is obviously quite unusual as gutars go. In terms of specifics, the tuning 'keys' on the headstock look too small to grip, the actual tuning posts (where the strings wrap round) don't appear to be properly alinged with the headstock surface, it looks like something strange is happening to the string close to the bridge (appears to be a kink in the strings) and near the tail-piece, toggle switch looked a bit 'chunky' (may just need to be smoothed?), end of neck (at body end) looks a bit thin/flat. Some close up renders would also help for looking at areas in detail - e.g. where the neck joins the body (front and back), the pickups, etc. As I type, can't remember whether there were any strap 'buttons'... I don't know how familiar you are with the terminology of guitar parts - can be a bit alien to non-guitarists, so if any of the above doesn't make sense, please let me know and I'll try to clarify.


Anyway, some more pictures - both photos and more model shots would help. NB and in case it helps in any way, here's alink to the Musical Instruments SMC - near the bottom of the first page is a guitar I modeeled for that challenge - it's by no means perfect but might help a little.

http://forums1.caligari.com/truespace/showthread.php?t=3709

Post by classic12 // Oct 8, 2007, 4:39am

classic12
Total Posts: 243
i would but i dont have any way of transfering pics from my phone to the pc as my cable is at home... and the strings are weird because its a cylinder made then extended / moved till it got alllllllll the way to the other side lmao i didnt no any other way to do it.

Post by Nez // Oct 8, 2007, 4:48am

Nez
Total Posts: 1102
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Well there's no specific hurry from my point of view - just upload some pictures when you get home and I can look at them tomorrow!


With regards to the strings, well there's seveal things you could try. One is to draw a cicle and a 'path' for the string (including any changes of direction over the bridge, etc) and then loft the circle along the path (or sweep it following the path. Or you could start with a cylinder, select the end face and sweep that in several stages...


Oh, and note that the strings should be different diameters which I think they don't seem to be at the moment. Thickest string is typically 4-5 times thicker than thinnest - if you want specific measurements, let me know and I'll get you some typical sizes.

Post by classic12 // Oct 8, 2007, 4:52am

classic12
Total Posts: 243
yeah i know all that stuff about the string (not the exact sizes) this was just a quick project that i wanted to do to test my modeling skills i dont quite understand all that stuff about sweeps and things but ill upload some pics tomorrow andthen hopefully fix this thing ha ha
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