Results 1 to 11 of 11
  1. #1
    Member
    Join Date
    Aug 2006
    Location
    Holland, PA
    Posts
    50

    Which wine glass looks more realistic?

    As an experiment to create realistic wine glasses, I modeled 3 wine glasses, 3 different ways.

    Models, from left to right:
    (A) modeled with bezier curves. Modifiers: Screw + Solidify + Edge
    (B) copied (A), then converted to mesh & manually tweaked
    (C) modeled by extruding mesh circles. Modifiers: sub-surface

    I noticed on (A) that where the stem meets the glass looks wrong. Also, Bezier curves + the modifiers left the stem hollow, where it should be solid

    So on (B) I added depth to the stem connection, top and bottom. That looked better. then I deleted the inner mesh from inside the stem. I'm happier with this one.

    On (C), I tried to make a white wine glass (narrower) but something feels off about it. Maybe the cup part feels too thick. Where the cup meets the stem doesn't look right either to me and adding more edge loops didn't help. not sure how to solve that.


    What do you think? Any ideas on how to improve this?

    thanks!
    /sb


    Rendered at 32 samples (updated )
    Click image for larger version. 

Name:	wine_glass3_05.png 
Views:	39 
Size:	1.53 MB 
ID:	515321

    Wireframe
    Click image for larger version. 

Name:	wine glass3_04_wire.png 
Views:	6 
Size:	228.4 KB 
ID:	515238

    Setup
    Click image for larger version. 

Name:	wine glass3 setup.png 
Views:	9 
Size:	496.4 KB 
ID:	515240
    Last edited by scatterbrain; 15-Feb-18 at 08:54.



  2. #2
    In your 'Setup' image the middle one has inverted normals.



  3. #3
    Member
    Join Date
    Aug 2006
    Location
    Holland, PA
    Posts
    50
    oops! thanks @organic for noticing that. I had no idea why one of the glasses was blue..maybe I accidentally mashed a keyboard shortcut . I've rendered a new version and glass (C) looks normal now. I'll update the rendered image

    any comments?



  4. #4
    what nodes set up did you use ?

    many ways to do it

    only one thing missing - Caustics !

    happy cl
    Nice 3D models = 25 % K.I.S.S + 25 % common sense + 25 % Inspiration + 25 % Knowledge
    Win 10 64 bits / Thanks and a Happy 2.79 with Cycles



  5. #5
    Member
    Join Date
    Aug 2006
    Location
    Holland, PA
    Posts
    50
    Originally Posted by RickyBlender View Post
    what nodes set up did you use ?

    many ways to do it

    only one thing missing - Caustics !

    happy cl
    here is my node setup
    Click image for larger version. 

Name:	wine_glass3_05_nodes.png 
Views:	5 
Size:	287.5 KB 
ID:	515322

    I found a site, Chocofurs, with really nice renders and used that node setup. I will google caustics and see how it can improve the image.

    Yes, many ways to do it! In my experiment i found that using Bezier curves offered really quick and easy manipulation of the glass type. it only took a click or two to turn it into a margarita glass. Unfortunately I don't think the end result was as convincing.

    thanks for looking!



  6. #6
    if you want high res realist glass C/W caustic then you better go with Lux render or Yafaray
    cycles is not really realist for caustic anyway and very slow!

    good luck
    happy cl
    Nice 3D models = 25 % K.I.S.S + 25 % common sense + 25 % Inspiration + 25 % Knowledge
    Win 10 64 bits / Thanks and a Happy 2.79 with Cycles



  7. #7
    IMO the best is the third one "basis" of this glass is not so dark like other ones and also neck of this looks most realistic



  8. #8
    Member
    Join Date
    Aug 2006
    Location
    Holland, PA
    Posts
    50
    Originally Posted by RickyBlender View Post
    if you want high res realist glass C/W caustic then you better go with Lux render or Yafaray
    cycles is not really realist for caustic anyway and very slow!

    good luck
    happy cl
    OK i'll check them out. i was hoping for 1 rendering engine, but i'm not against layering/compositing if i have to send glass to another renderer. I googled around and found corona and pixar's renderman for blender. i'll see if i can get them all working and installed too.

    you're sure right about the slow part.. those 3 glasses at 32 samples were 20min on my nvidia gforce gtx 950. at 50 samples it took 3hrs. i can only imagine how long it will take one they are inserted into a scene

    edited: wow i just googled caustics and you're very right. that would really add something to the render. first google result is amazing!
    Last edited by scatterbrain; 15-Feb-18 at 12:32.



  9. #9
    Member
    Join Date
    Aug 2006
    Location
    Holland, PA
    Posts
    50
    after re-rendering, i agree with you. it must have something to do with the number and positioning of the loop cuts because the stems of (B) and (C) are both solid
    Last edited by scatterbrain; 15-Feb-18 at 12:34. Reason: how do i delete my accidental double post?



  10. #10
    Member
    Join Date
    Aug 2006
    Location
    Holland, PA
    Posts
    50
    Originally Posted by Pyrol View Post
    IMO the best is the third one "basis" of this glass is not so dark like other ones and also neck of this looks most realistic
    after re-rendering, i agree with you. it must have something to do with the number and positioning of the loop cuts because the stems of (B) and (C) are both solid



  11. #11
    depends how realist you want it !

    there is some little caustic in cycles but not the best one around and never was

    so if you really need strong caustics for more realism then check out Yafray and Lux they are free and do some amazing colored Caustics.

    have fun with glass

    happy cl
    Nice 3D models = 25 % K.I.S.S + 25 % common sense + 25 % Inspiration + 25 % Knowledge
    Win 10 64 bits / Thanks and a Happy 2.79 with Cycles



Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •