Page 7 of 27 FirstFirst 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ... LastLast
Results 79 to 91 of 346

Thread: The Dimensions of Colour - a colour theory discussion thread

  1. #79
    Join Date
    Dec 2003
    Location
    Seattle, WA
    Posts
    4,531
    Thanks
    356
    Thanked 656 Times in 222 Posts
    Hey Briggsy, hope you are well!
    I still have a hard time lighting warm local colors with cool light, if you ever had the time to demonstrate with a sphere or two I'd be in your debt (again). Understandably in many situations the local color of the sphere wouldn't be apparent in the slightest, but I suppose I am looking more for the situations where there is an obvious transition - perhaps multiple lightsource situations? Tricky business...
    Reply With Quote Reply With Quote


  2. Hide this ad by registering as a member
  3. #80
    Join Date
    May 2005
    Location
    Sydney
    Posts
    855
    Thanks
    193
    Thanked 1,397 Times in 338 Posts
    Sure, Tom. Just tell me the colour of the main light, secondary light and local colour that you want, and I'll give it a go! My own personal Peer Project exercise, yay!
    Reply With Quote Reply With Quote

  4. #81
    Join Date
    Dec 2003
    Location
    Seattle, WA
    Posts
    4,531
    Thanks
    356
    Thanked 656 Times in 222 Posts
    Haha, yayyyyy!

    Hmm, let's see. Cyan main light, red secondary and an orange local colour. If that gets too ugly due to the complements maybe the secondary should be white or orange?

    Thank you!
    Reply With Quote Reply With Quote

  5. #82
    Join Date
    May 2005
    Location
    Sydney
    Posts
    855
    Thanks
    193
    Thanked 1,397 Times in 338 Posts
    How's this look? I've left out the complexities of the reflected light since we're mainly looking at the colours. Here's the PSD file so you can see my logic, and tweak the hues to your heart's content:

    http://djcbriggs.googlepages.com/fortom.psd
    Reply With Quote Reply With Quote

  6. The Following 2 Users Say Thank You to briggsy@ashtons For This Useful Post:


  7. #83
    Join Date
    Apr 2005
    Location
    Austria
    Posts
    777
    Thanks
    104
    Thanked 105 Times in 92 Posts
    This is absolutely amazing!!! I wanna thank you so much for this site and your effort and knowledge you've put in.

    I'm also one of that guys who tries to get along with that little bit of color theory knowledge hoarded along the time....wondering why my colored stuff isn't quite working......

    I should be working right now, so I'm not able to get through the whole stuff...but i'm really looking forward to read it!!!.

    Thanks a lot, i guess i will be back with some questions soon.

    Cheers

    Andi
    Reply With Quote Reply With Quote

  8. #84
    Join Date
    Jan 2009
    Location
    Vancouver, BC
    Posts
    4
    Thanks
    0
    Thanked 0 Times in 0 Posts
    You're a big man for trying to help us shmucks along. Thanks briggsy.

    I've recently been hit with the colour bug. It's all I see anymore. Trying to observe light and colour closer than I ever have before, in hopes to apply it to my work. This thread will serve nicely in helping me along. I'll try to follow along.


    -Matt
    Reply With Quote Reply With Quote

  9. #85
    Join Date
    Jan 2009
    Posts
    77
    Thanks
    0
    Thanked 15 Times in 15 Posts
    awesome color works. impressed. love to see more of your work.
    Reply With Quote Reply With Quote

  10. #86
    Join Date
    Dec 2003
    Location
    Seattle, WA
    Posts
    4,531
    Thanks
    356
    Thanked 656 Times in 222 Posts
    Briggsy Sir, thanks so much for that sphere. It's opened my eyes to a lot of things. A bit of a renaissance going over here in my head lately
    Reply With Quote Reply With Quote

  11. #87
    Join Date
    Oct 2008
    Location
    South Africa
    Posts
    1,878
    Thanks
    84
    Thanked 632 Times in 400 Posts
    Thanks MR Briggs.

    Your site is a really good resource that saves alot of time.

    I had some raytracing stuff I did yonks ago and played around with words that didn't make sense to me at the time. Now they do.

    Just one question. On a dull ball without a specular hilight but with a diffuse effect of saturation change(Closer to the color of the light source).
    Does the degree of change have to match the half light and full light direction of the sphere or does it follow the direction of reflecton the specular would have had? In otherwords to simply see the effect as a large dull specular?

    [EDIT]
    I looked at my hand and the answer came to me. Because the texture is distributed (little bums on the back of the hand's skin texture) each bump has it's own specular almost like a bazillion little spheres stacked together, distributed across the surface of the hand. So the direction of the specular on each bump would confirm to reflection or specular rule but because they are distributed each of them would give a little specular over a wide area but thus only the planes with texture (little balls) in range will display the mixed or combined effect of saturation change:A little bit of light color blended with the object color and illumination of that color resulting in saturation change. Depending on the texture of the surface then the effect would be limited only to certain planes that has it's texture in range and that might not be the fully lit plane, and this effect could diminish down the length of a flat or constant plane as the relationship to the light and eye changes. Therefore the saturation painted on a lit side of a ball and the brightness change would not share the same relationship of degree into the same direction.
    Last edited by George Abraham; February 5th, 2009 at 10:00 AM.
    ----------------------------------
    Scetchbook: View the exhibitionist's stuff.
    Reply With Quote Reply With Quote

  12. #88
    Join Date
    May 2005
    Location
    Sydney
    Posts
    855
    Thanks
    193
    Thanked 1,397 Times in 338 Posts
    Very glad if the site has been of help, everyone - just keep the questions/discussion/crits coming!

    zaorr I not sure if I quite follow all of that but it sounds to me like you're on the right track. I'd expect to see an additive combination of the fuzzy specular reflection (the colour of the light source, and centred on the point where the specular on a polished sphere would be) and the diffuse reflection (the colour of the object, and reaching its maximum at the full light plane).
    Reply With Quote Reply With Quote

  13. The Following User Says Thank You to briggsy@ashtons For This Useful Post:


  14. #89
    Join Date
    Oct 2008
    Location
    South Africa
    Posts
    1,878
    Thanks
    84
    Thanked 632 Times in 400 Posts
    Thanx.
    ----------------------------------
    Scetchbook: View the exhibitionist's stuff.
    Reply With Quote Reply With Quote

  15. #90
    Join Date
    Mar 2006
    Location
    sweden
    Posts
    7,474
    Thanks
    1,696
    Thanked 1,221 Times in 625 Posts
very cool thread.. i had no clue that you could translate so much to the digital medium... very cool , thank you so much!
Reply With Quote Reply With Quote

  • #91
    Join Date
    Oct 2008
    Location
    South Africa
    Posts
    1,878
    Thanks
    84
    Thanked 632 Times in 400 Posts
    The Dimensions of Colour - a colour theory discussion thread


    Couldn't resist.
    It's the real deal.
    Good ref though.
    ----------------------------------
    Scetchbook: View the exhibitionist's stuff.
    Reply With Quote Reply With Quote

  • Page 7 of 27 FirstFirst 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ... LastLast

    Similar Threads

    1. Colour theory and lighting?
      By Gesturing Stream in forum ART DlSCUSSION
      Replies: 8
      Last Post: October 6th, 2011, 02:50 PM
    2. Colour theory?
      By StylesArt in forum Artist Lounge
      Replies: 5
      Last Post: January 2nd, 2011, 03:20 PM
    3. help, colour theory.
      By wilko2112 in forum ART DlSCUSSION
      Replies: 2
      Last Post: December 3rd, 2007, 03:00 PM
    4. colour theory
      By MerQueen69 in forum ART CRITIQUE CENTER
      Replies: 2
      Last Post: July 3rd, 2007, 05:11 PM

    Members who have read this thread: 101

    Tags for this Thread

    Bookmarks

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •  
    Art Workshop Discount Inside

    Developed Actively by vBSocial.com
    SpringOfSea's Sketchbook