링크강좌
2007.09.18 10:46

사람만들기-Z브러쉬연동.

조회 수 1838 추천 수 1 댓글 14
?

단축키

Prev이전 문서

Next다음 문서

크게 작게 위로 아래로 게시글 수정 내역 댓글로 가기 인쇄
?

단축키

Prev이전 문서

Next다음 문서

크게 작게 위로 아래로 게시글 수정 내역 댓글로 가기 인쇄
http://www.patrickeischen.com/




About the image


There are many rendered portraits in a lot of galleries. I was always impressed by the high quality of the MentalRay FastSkin shader and how easy it was to set it up once you understood the basic concept of how skin works. But as I 'only' have Cinema 4D, MentalRay is not an option for me. But isn't it possible to render realistic skin in Cinema 4D? I wanted to find out with this project.




The modeling


I usually start my 3d models with a simple cube (box modeling). I know that many prefer point-by-point modeling (or poly-by-poly) but I like using a cube and 'cutting' the detail in, step-by-step. Box modeling allows me to quickly block out the basic shape of the figure and thus to have a better feeling for the proportions of the model. But because I am using good references, any modeling technique would have worked.


The face finished, I began laying out the UVs (maybe the most annoying part of this job). Fortunately I found UVLayout (by Headus), a free program that flattens 3D geometry automatically. [link]




The textures


I took the model into ZBrush to add a texture to the face. Every inch of the texture comes from high-resolution photos which where projected onto the model with the ZBrush tools. Wesclei Barbosa has written a tutorial about how to do that. All my reference photos as well as the texture references are from www.3d.sk. [link]


This is how the final head texture looks:


I used this same texture to create the skin details. I turned it into a black & white image and created a mask of it in ZBrush. Now I was able to use the Inflate brush and sculpt all the little skin details. This technique is explained in this video tutorial. I also included some volume for the hair with a custom brush. Finally I created and extracted a displacement map of the head.




The skin shader


Now comes the hardest part: setting up the skin shader. For this image I used the Vreel Skin Shader, a plug-in shader for Cinema 4D that allows you to set up different layers of skin and which also includes a SSS effect. It is possible to setup parameters for secularity, surface and translucent. The shader is loaded in the Luminance channel.


As you can see on the left picture, most of the texture has been 'overwritten' by the shader. That's because I only loaded a color map in this test render. In the right picture I used an epidermal map and a subdermal map mixed together with a weight map. All maps are modified versions of the original color map.


This is how the luminance channel looked like after loading the different maps. The default color map is loaded into the standard Cinema Color channel.


I think the default c4d color channel is much easier to set up, so that's why I left 'Calculate Surface Shading' blank. I used 'Calculate Specularity' to create an even amount of overall brilliance in the skin (see picture below). The standard C4D specularity channel has been used to create nice sharp specs on the edges (e.g. the lips and on the nose). Both specularity channels have been restricted to a map.


The final skin shader is made up of 6 different channels: Color, Diffusion, Luminance (with the Vreel shader), Bump, Displacement, Specular and Specular Color.




The scene


I quickly modeled a simple shirt, took it into ZBrush, divided it a couple of times and sculpted some cloth wrinkles with the Inflate brush. I also modeled the arms and shoulders and composed everything together in Cinema. There was no need to use displacements on the shirt; I simply exported the high-resolution mesh from ZBrush. I have a lot of memory, so I don't have to worry that my computer might crash. There is almost no difference in render times between the low- and high-resolution shirt.


The texture for the shirt has been created by playing around with some filters and by using the 'dodge' and 'burn' tools.



The lighting


For this image I couldn't use the Global Illumination system because Vreel Skin doesn't work with GI, so I had to use standard Cinema lights. I created a 3-point-lighting with:



1) Main Spot @ 115 %
2) Fill Area @ 95 %
3) Rim Spot @ 190 %


I also include an area light (4) with very low intensity, placed below the model to simulate bouncing light from the bottom. All lights use soft shadows and 'Falloff' is set to 'Inverse Square'.



The hair


Now comes the funny part: the hairstyle and the beard. I used Cinema's hair module for this job. I created two additional maps: an alpha map for the beard and one for the hair. Both maps were loaded into the 'Density' channel of the hair objects. Unfortunately the density map will not take effect in the editor view. It will only be visible in the final render. So I would suggest setting 'Display' in the 'Editor' tab to 'Hair Lines' if you have enough memory in your computer.


I created eyelashes and a wet layer for the eyes. For the eyelashes I selected an edge loop around the eye, created a spline from it and pressed the 'Add hair' button.



The rendering and post production


The render with Vreel skin shader and displacement took about 4-5 hours (1h30min without displacement). I rendered the hair and beard in a separate pass and composed both in Photoshop. Further more I rendered an Ambient Occlusion pass and multiplied it over the picture. I wasn't happy with the way the eyes looked, so I copied parts of an eye photograph over the image. I finally did some color correction, applied Gaussian Blur to simulate DOF and added a grain layer. Here is the final image.



Thank you for reading my 'Making of'. I hope it was any help for you. For further questions you can contact me any time.Keep on rendering!

Who's 길동

profile
우울함의 원천은 역시 통장잔고!

 

 

 

  • profile
    이단비 2007.09.18 10:46
    텍스쳐링은 차치하더라도... 모델링은 참 간단하게 하는것 같이 보이긴 하는데...ㅎㅎㅎ
  • ?
    수옥 2007.09.18 10:46
    좋은 자료 감사합니다.^^
  • ?
    P. 2007.09.18 10:46
    호~
  • profile
    전우열 2007.09.18 10:46
    헐..- _-;;;;; 완전히..ㅡ.ㅡ;; 사람이군요;;
  • ?
    수옥 2007.09.18 10:46
    쉐이더가 따로있는 건가요?
  • ?
    늦깍이 2007.09.18 10:46
    최소 한달은 설명해 줘야 할 것을 단 한장으로 해버렸네요
  • profile
    Geol Choi 2007.09.18 10:46
    저거 모델링 아무나 할 수 있는건가요? 왠지 자신이 없어집니다..
  • ?
    건영 2007.09.18 10:46
    잘받아 갑니다..아직 멀었다는..
  • ?
    감미루 2007.09.18 10:46
    좋은자료 감사합니다~!
  • ?
    케라스트 2007.09.18 10:46
    직접 만드면 어렵겠네요;; 시간 오래걸릴뜻?
  • ?
    검정로모 2008.08.11 13:58
    윌스미스 짝퉁 잘봤습니다^^; 리얼리티 장난 아니네요...
  • ?
    terryko 2008.08.13 05:54

    오.. 찐하다... 제대루다.

  • ?
    종자 2010.07.18 17:30
    와우~~~ 쩔어요~!
  • ?
    갸르르륵 2010.11.23 15:43
    항상 감사합니다!~

List of Articles
번호 분류 제목 글쓴이 날짜 조회 수
공지 팁 / 노하우 P2P Hidden Coin Miner 멀웨어 관련 증상 및 치료방법 (아이원스튜디오 배포) 2 file 염귤 2023.09.28 802
공지 릴레이 튜토리얼 [공지] '릴레이 튜토리얼 시즌2'를 시작합니다! 1 십사 2021.11.10 4728
공지 릴레이 튜토리얼 [공지]유저들과 함께하는 Relay Tutotial 연재 스타트! 12 그래바 2019.10.07 5788
공지 기초 이제 입문하시는 초보분들 필독.....!! 644 길동 2005.07.12 58423
774 기초 옥테인 렌더 설치 방법, Octane Render 설치(데모, 구독자 버전) 씨지토리닷컴 2020.12.04 3449
773 팁 / 노하우 [프겔 3탄]세계대전 하면 역시 땡크! 37 file 훈공 2009.08.28 3438
772 릴레이 튜토리얼 [릴레이튜토리얼] 박태훈 - C4D Hard surface modeling with Boole. 7 file 박태훈 2020.08.17 3415
771 기초 CINEMA 4D History 81 길동 2006.10.16 3394
770 팁 / 노하우 시네마 4D와 에펙연동(3D+animation) 25 file .피. 2010.01.18 3393
769 팁 / 노하우 모그라프 - 클로너에서 클론들을 랜덤하게~ 12 file 꺼니 2011.07.29 3377
768 팁 / 노하우 2013, Maya,3ds Max,Houdini, C4D 리뷰 1편 13 엘라스틱마인드 2012.11.15 3358
767 기초 Season3 Lesson01. Move와 Rotation 제어하는 Xpresso강의 23 김그륜 2015.05.03 3340
766 팁 / 노하우 [프로젝트겔러리 1탄] 수박... 37 file 희빠 2009.07.20 3320
765 팁 / 노하우 C4D R15 랜더링 비교 및 간단한 팁 file 하늘나무 2014.09.16 3299
764 동영상 강좌 [버뮤다 픽쳐스]안녕하세요 튜토리얼 제작하고 있는 버뮤다 픽쳐스입니다! 7 file 버뮤다픽쳐스 2019.09.20 3295
763 동영상 강좌 옥테인 세미나 복습용 영상입니다. (*비밀번호걸려있습니다) 9 김그륜 2016.08.03 3248
762 팁 / 노하우 초보님들을 위한 초간단 Net Render 사용 메뉴얼 ^^ 61 file 유재남 2008.11.13 3226
761 동영상 강좌 500ml 콜라피티병 만들기 130 file 정석 2008.06.30 3220
760 팁 / 노하우 사랑을 전하세요.2~.^^;; 길동이표 하트(Heart)만들기.. 45 file ▦▦길동 2009.06.10 3220
759 기초 모델링 도구 익히기 Part.01 10 브이에스랩 2016.06.07 3215
758 링크강좌 시포디 공부중인대 한곳 추천해볼게용 4 file 스퀄레온하르트 2012.07.08 3185
757 팁 / 노하우 <시네마4디> 튜토리얼 002 82 file 궁금이 2004.11.23 3182
756 팁 / 노하우 물방울 맺히기 튜토리얼입니다. 46 file 존재와당위 2009.03.23 3157
755 동영상 강좌 토마토 만들기~ 137 file 돌아온 길동 2008.11.22 3153
목록
Board Pagination Prev 1 ... 2 3 4 5 6 7 8 9 10 11 ... 45 Next
/ 45
메뉴닫기
닫기

마이페이지

로그인을 해주세요