3D Portrait Rendering Experiment

Telvannia · Post by **Telvannia** » November 11th, 2007, 1:04 pm

Mille wrote:
thespaceinvader wrote:It all sounds great. And like many before have said, if you can come up with a clean, quick way of making mainline quality portraits with a minimum of fuss, more power to you. But these aren't mainline quality yet, as already stated. A little bit of post-processing and some different colour choices, and the dragon would be there IMHO. But i don't think any amount of fiddling with the shading will fix the issue that Boucman mentioned. It needs extra work doing after the render is complete. But even then, working from a 3D render rather than from scratch could speed the process along significantly.
Ok - I have tried some things. Not sure if this is a solution or genrally better.
(Ignore the strange looking nose - iÂ´m working on this)

Besider this i have a little problem in postproessing and i really donÂ´t canÂ´t find out how i can solve it in gimp. So perhaps you can teach me this.
I want to lay the whole image on a black backgorund, but when i do so, i always get white ugly borders, and nothings in the configuration seems to help.
Can you tell me how i can do this smootly with the selection tool?

could you not just render your faces onto a black background? I assume you currently render them to a white one. If you cant change the render background colour, then see if you can remove it all together and just have it rendering it on to alpha, because then that should remove of the white pixels around the edge.
But i have never used DAZ studio so i dont know what it is capable of.

Post by **Kestenvarn** » November 11th, 2007, 2:10 pm

The scrawny neck, large eyes, etc. all add to a rather comical look, similar to a chicken.

Post by **thespaceinvader** » November 11th, 2007, 2:14 pm

My fist inclination would be to render on to alpha if possible, black if not, as for telvannia. There's no real way to avoid the jaggies in the outlines otherwise. Unless you draw over them, but that's another matter...

Post by **Mille** » November 11th, 2007, 3:35 pm

Telvannia wrote:
Mille wrote: Ok - I have tried some things. Not sure if this is a solution or genrally better.
(Ignore the strange looking nose - iÂ´m working on this)

Besider this i have a little problem in postproessing and i really donÂ´t canÂ´t find out how i can solve it in gimp. So perhaps you can teach me this.
I want to lay the whole image on a black backgorund, but when i do so, i always get white ugly borders, and nothings in the configuration seems to help.
Can you tell me how i can do this smootly with the selection tool?
could you not just render your faces onto a black background? I assume you currently render them to a white one. If you cant change the render background colour, then see if you can remove it all together and just have it rendering it on to alpha, because then that should remove of the white pixels around the edge.
But i have never used DAZ studio so i dont know what it is capable of.

Hey cool - I just found out how to render with alpha channel:)

Post by **thespaceinvader** » November 11th, 2007, 3:46 pm

The major way to avoid jagged edges of any colour is to work on a layer ABOVE the background colour. That way the anti aliasing of the lines will be in grades of transparency, rather than grades of the background colour. This means that you can change the colour of the layer beneath, and the anti-aliasing will still work. but that wouldn't work if you were importing a non-layered file with the render already in it.

Don't be too sure that DAZ - PS wouldn't work, though. If DAZ produces a .psd file, you can read and work with that in GIMP just as you can in Photoshop...

Post by **Mille** » November 11th, 2007, 4:13 pm

thespaceinvader wrote:The major way to avoid jagged edges of any colour is to work on a layer ABOVE the background colour. That way the anti aliasing of the lines will be in grades of transparency, rather than grades of the background colour. This means that you can change the colour of the layer beneath, and the anti-aliasing will still work. but that wouldn't work if you were importing a non-layered file with the render already in it.

Don't be too sure that DAZ - PS wouldn't work, though. If DAZ produces a .psd file, you can read and work with that in GIMP just as you can in Photoshop...

Yes you describe exactly my problem i think.

Well - The DAZ bridge seems to work different as far as i understand now. DAZ doesnÂ´t export PSD. The Bridge Plugin is for Photoshop and allows you to work directly on the 3D objects and scenes. Thats why i donÂ´t see a way to work similar in Gimp. Using Photoshop plugins might be a solution, but i havenÂ´t found out yet, how to use the Photoshop plugin extension in Gimp 2.4

Post by **thespaceinvader** » November 11th, 2007, 4:15 pm

Ah, OK, probably won't work then.

Maybe it would be worthwhile investigating whether you can get DAZ to export as .psd with the background and render on different layers.

Telvannia · Post by **Telvannia** » November 11th, 2007, 7:23 pm

Just thought i would share my so far best result in blender. I cant get the lines which is annoying but this is done using the toon shading.

i do know it is only the face and no head ect. i just want to know what people think before i spend time creating a whole head.

Post by **irrevenant** » November 11th, 2007, 8:49 pm

The model looks good but it's a bit hard to judge without textures. Can you post it with a skin texture?

P.S. His lips are awfully red...

longhair · Post by **longhair** » November 11th, 2007, 10:08 pm

Have you checked out Make Human? It's still under development, but very promising. Basically, makes the basic form of a human being, and allows you to easily tweak various parts of the body, and even come up with fairly intricate poses. Once you're done that, you export it and open it up in Blender (or whatever) to polish and light it.

Telvannia · Post by **Telvannia** » November 12th, 2007, 8:24 pm

here a bit more complete, not bothered to go below his chin yet, i know his head shape is a bit odd, i wanted to try out hair so i was done with a little less attention than normal.

longhair i had a look at makehuman but i found it ran really slow and i could not make blender import the files so im leaving it for now.

Post by **thespaceinvader** » November 12th, 2007, 9:21 pm

It's a Klingon!

Telvannia · Post by **Telvannia** » November 12th, 2007, 9:30 pm

not quite the look i was aiming for to be honest.

Here is a different hair style, i decided such a mad face needed extreme hair:

Post by **thespaceinvader** » November 12th, 2007, 9:47 pm

The forehead is a VERY odd shape, in other words. Also, the hair's too sparse - the scalp shouldn't be visible...

Post by **Mille** » November 14th, 2007, 3:37 pm

longhair wrote:Have you checked out Make Human? It's still under development, but very promising. Basically, makes the basic form of a human being, and allows you to easily tweak various parts of the body, and even come up with fairly intricate poses. Once you're done that, you export it and open it up in Blender (or whatever) to polish and light it.

DonÂ´t find it to promising. Even with untextured free figures in DAZ you will get a lot better results. Notto speak of animation possibilites.