how can i render realistic people?

Graphics and GPU Programming Programming OpenGL

Started by kaervek21 July 06, 2004 02:09 PM

21 comments, last by thedevdan 19 years, 9 months ago

548

July 06, 2004 07:17 PM

I think another important thing (though not as important as important) is skin tone. There's a certain translucent nature to human skin, which gives skin tone that fleshy color. Of course you shouldn't mimick this accurately, but I've seen some models look amazing simply by adding some special shader effects to mimick skin tone and the blending with veins and the blood flow beneath the skin.

Promit

13,404

July 06, 2004 08:06 PM

Quote:Original post by okonomiyaki
I think another important thing (though not as important as important) is skin tone. There's a certain translucent nature to human skin, which gives skin tone that fleshy color. Of course you shouldn't mimick this accurately, but I've seen some models look amazing simply by adding some special shader effects to mimick skin tone and the blending with veins and the blood flow beneath the skin.

Ah yeah, subsurface scattering it's called. Effective texturing can get you through, especially when you're not using facial animation and especially when you don't have too much dynamic lighting.

I think he was looking for skeletal animation though, not lighting effects :P

SlimDX | Ventspace Blog | Twitter | Diverse teams make better games. I am currently hiring capable C++ engine developers in Baltimore, MD.

okonomiyaki

548

July 06, 2004 08:18 PM

Quote:Original post by Promit
Quote:Original post by okonomiyaki
I think another important thing (though not as important as important) is skin tone. There's a certain translucent nature to human skin, which gives skin tone that fleshy color. Of course you shouldn't mimick this accurately, but I've seen some models look amazing simply by adding some special shader effects to mimick skin tone and the blending with veins and the blood flow beneath the skin.

Ah yeah, subsurface scattering it's called. Effective texturing can get you through, especially when you're not using facial animation and especially when you don't have too much dynamic lighting.

I think he was looking for skeletal animation though, not lighting effects :P

True, he talked about movement in the original post, but I just wanted to bring it up :p I wish I saw more implementations of it (you're right, sub-surface scattering. I'm bad with formal definitions.) Definitely focus on movement first (with the earlier good suggestions) but don't forget about making the character glow!

kaervek21

122

Author

July 07, 2004 02:52 PM

wow alot of this stuff goes right over my head. is there some system or standard that people use for making characters move? like am i wasting my time defining a class that stores body angles and different motion sequences? or is that what everyone does?

regards to poser... Right now all i know is how to hardcode GL primatives and transformations and all that jazz, and i know how to read in and display a 3ds file. how would i import poser models... hmm well i know you said you convert your poser models to 3dsmax but that doesn't really solve my problem... maybe i'll just go look up skeletal animation now that i have time and see what that brings up...

thanks again

kaervek21

122

Author

July 07, 2004 03:02 PM

ok so my idea for drawing people IS skeletal animation... just not quite as organized... maybe i'll implement actual skeletal animation instead... but that does not solve my problem of having the skin blend well at the joints... the "Normal" vectors are off at the joints and my characters look like virtua fighter 1.

any ideas anyone?