Author : polygoo


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FAT_CAP's Avatar
Old (#1)
Woohoo!!! Finally the boards are back up...hopefully now I can get some advice on the next steps with this little critter [img]/images/graemlins/laugh.gif[/img]

So - heres the concept



and heres the mesh so far



What I need to know is - can the low res (or even the high-res) model have open edges and/or overlapping geometry if it is to be normal-mapped. I looked for this information all-over when the boards were down, but couldnt find anything that dealt with the subject. Thats part of the reason why theres not much of an update at the moment.

Anyway - hope I can get a quick reply to this question as Im ready to start optimizing and uv-ing after I get these quandries solved.

Thanks in advance guys [img]/images/graemlins/laugh.gif[/img]
Offline , polygon, 712 Posts, Join Date Oct 2004,  
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FAT_CAP's Avatar
Old (#2)
By the way - the intersecting geometry would be where the teeth join the head mesh - and the "uncapped" holes in the geometry would be the very bottom of the character - just incase anybody was wondering!!!
Offline , polygon, 712 Posts, Join Date Oct 2004,  
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snemmy's Avatar
Old (#3)
looking great FAT_CAP! [img]/images/graemlins/laugh.gif[/img]

i don't think open edges are a problem.

but i believe if you have overlapping geometry it can get a bit weird.
at least on the internal parts that you wont see anyway. but like the petals at the bottom and flowers on top of the head, i think you will need to seperate those to their own objecs and render them seperately to get a good normal render.

at least when i was using Orb to generate mine i noticed that over lapping pieces would write normal information, say a leaf on the top of the head, not only on the correct leaf bit but the leaf normal info would also appear on the head portion undeneath it.

you should do a test normal map with seperated geometry and non-seperated just to make sure.
=^.^=
Offline , dedicated polycounter, 1,432 Posts, Join Date Oct 2004, Location KY Send a message via Yahoo to snemmy  
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Jerome's Avatar
Old (#4)
its pretty gross looking [img]/images/graemlins/smile.gif[/img]

Can you show me how to do arms like that?
Offline , spline, 210 Posts, Join Date Oct 2004,  
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FAT_CAP's Avatar
Old (#5)
Ah cheers SNEMMY - I think that I've got it all sorted now... I dont think that overlapping geometry is a problem - although I am "high-polying" and normal-map generating all of the objects "seperately" - i.e laid apart from each other - just so I can get to them easier when Im adding details in. I'll fit all the pieces together and pose them all up once I've got all the high-res geometry where I want it and the normal map generated.

Heheh I hope that "gross-looking" is a good thing Jerome!!! I'll posty a wire of my model up here tommorrow so you can see how I have constructed the arms on this guy - its nothing special though mind you. Looking at anatomy books is really good to get a good understanding of the forms that go into making up areas like the arm etc. - or body-building mags are very good to see very defined musculature, sinews and veins etc....and theres also everybodies frined - www.3d.sk [img]/images/graemlins/laugh.gif[/img]

Anyway - on with the updates...still alot of work to do on this high-poly mesh but heres where I am at the minute

Offline , polygon, 712 Posts, Join Date Oct 2004,  
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Kayamate's Avatar
Old (#6)
dont forget the staf!
Offline , vertex, 43 Posts, Join Date Oct 2004,  
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FAT_CAP's Avatar
Old (#7)
Heheh - the "staf" isn't forgotten...maybe lost to the golden buddha of polycounts for the minute - but definately not forgotten. I might just add it in to the mix after the comp is finishedas a seperate object eith its own textres sheets etc.

Or - I might find a couple-o-hundred polies laying about that I can sink into the staff... hmmm... :S ...maybe not [img]/images/graemlins/frown.gif[/img]
Offline , polygon, 712 Posts, Join Date Oct 2004,  
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FAT_CAP's Avatar
Old (#8)
Hmmm...ok - I've got a question for you guys.

Im using MAX7 to generate and display my normal maps. Now - using the DirectX display of material in MAX7's material editor - when the normal map is applied (tangent space) - the map looks inverted - or rather - it makes the object look as if the normals are inverted. However - when I render the image out - it looks ok.

Does anybody know what is going on here. Its not a TOTAL block in my normal mapping process - but it's sure infuriating to have to render an image out each time I want to view my normal map!!!! I can rectify the viewport thing by flipping the normals of the object - but thats not the point!!!

Using the metal bump viewer shows the mapping OK but when I add a light to the scene - the object is lit from the opposite side to the light is on - i.e if the light is infront of the object - theback is lit and vice versa.

Im using an NVIDIA Geforce FX2500 by the way if that makes any difference.

*sob sob* ...any help here? [img]/images/graemlins/frown.gif[/img]
Offline , polygon, 712 Posts, Join Date Oct 2004,  
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LtEthe's Avatar
Old (#9)
*hands Fat_Cap normal map frustration gun.* Put in mouth, till you feel the muzzle tickle your uvula. Pull trigger. Pull trigger until desired result happens or the taste of cold steel irritates your tongue.

Sorry if it tastes a little funny, I've been using it myself throughout this challenge.
He has died a thousand thousand deaths,
And I have yet to fall.
Offline , vertex, 31 Posts, Join Date Oct 2004, Location OC, CA  
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FAT_CAP's Avatar
Old (#10)
Hahah - yeah I know what you mean LtEthe. [img]/images/graemlins/wink.gif[/img] Looks like you have been using the same [3DApp] --> [ZBRUSH] ---> [3dApp] pipeline as me aswell - definately a learning curve if there ever was one...so many options and checkboxes to choose from and get right at every stage!!!

I've managed to find the problem though - it appears that I hadn't applied a RESET XFORM to my lowpoly object in MAX and upon doing so, inverting the normals of the resultant mesh, and then re-normal mapping everything - I've gotten much better results.

Will post up some current shots tonight. [img]/images/graemlins/laugh.gif[/img]
Offline , polygon, 712 Posts, Join Date Oct 2004,  
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JBoskma's Avatar
Old (#11)
Kickass! update please [img]/images/graemlins/smile.gif[/img]
Boskma.org Jelmer @ VFS weblog
Offline , triangle, 275 Posts, Join Date Oct 2004, Location Vancouver, B.C  
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FAT_CAP's Avatar
Old (#12)
OK - well here's the current WIP shots. Still working on the diffuse map and the spec map is temp for the moment...also, obviously its till urigged [img]/images/graemlins/frown.gif[/img] Hopefully get all this done by the deadline [img]/images/graemlins/smile.gif[/img]





Still LOTS to do...and its crunch-time at work for out current game...that means lots of late-overtimes, followed by lots of lateer nights trying to get this finished. Hmmmmmmm - premature male pattern baldness and chronic, stress induced heart problems here we come!!!
Offline , polygon, 712 Posts, Join Date Oct 2004,  
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FAT_CAP's Avatar
Old (#13)
Hmmm - actually I wonder if anyone can help me out with some specular map questions I have (thats the next on my list to move onto).

How do I control the strength of the shine on different parts of the model? not just the brightness of the spec but the actual "glossiness".

i.e - the eyes should have small, "tight" highlights on them as they are very shiny and wet. However the skin should by less shiny and therefore the highlights would be larger and more diffuse. The teeth would have a specular somewhere inbetween the two.

How would I go about doing this in the constraints of this competition? I know that you paint a spec map much like a bump mamp - with white areas being more shiny and black areas being less-so... but this will only let me control the sttregth of the spec wont it? Not the actual "diffuse-ness" or "tightness" of the shine itself?

Reading this back - Im not sure if Im getting my point across very well!!! I dont really know the technical terms for what Im trying to achieve - or even if it is possible at all.

Anyway - I hope someone can help me out on this one - not long till deadline time now! [img]/images/graemlins/laugh.gif[/img]
Offline , polygon, 712 Posts, Join Date Oct 2004,  
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FAT_CAP's Avatar
Old (#14)
Hmm - well I come on here on the deadline day to submit my pictures which I had to rush to get finished ...and find that the deadline has been extended even further!!!

Bah - oh well. I thikn I'll just call this done for the minute. I will post in the submissions thread a bit later on.

Here's a posed beauty render of the "finished" character. MMMMmmmm - how I love 3DSMAX's bones system :/

Offline , polygon, 712 Posts, Join Date Oct 2004,  
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FAT_CAP's Avatar
Old (#15)
Right - well I posted my "finished" entry up tonight...mostly because I've got as far as I can in the timeframe - and the next weeks will be spent on overtime at work.

Sorry for not posting more crits during the competition but deadlines have been looming and free-time has been sparse.

Good luck everybody [img]/images/graemlins/smile.gif[/img]
Offline , polygon, 712 Posts, Join Date Oct 2004,  
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