Closed Thread
Results 1 to 3 of 3

Thread: store with irradiance map

  1. #1
    Junior Member
    Join Date
    Jul 2013
    Posts
    1

    Name
    jun k
    Forum Username
    junk



    Default store with irradiance map

    it's first time to question here.
    i don't understand store with irradiance map in the light option.
    all i know is it doesn't store the spectular light and it blurs the shadow.
    does any know what the store with irradiance map does?? can you give me some example?? when should i turn it on??
    Last edited by junk; September 18th, 2013 at 08:17 PM.

  2. #2
    Veteran Member
    Join Date
    Dec 2001
    Location
    North Carolina
    Age
    58
    Posts
    1,008

    Name
    Ismael 1-1
    Forum Username
    Ismael

    United States

    Default Re: store with irradiance map

    "Store with irradiance map - when this option is on and GI calculation is set to Irradiance map V-Ray will calculate the effects of the VRayLight and store them in the irradiance map. The result is that the irradiance map is computed more slowly but the rendering takes less time. You can also save the irradiance map and reuse it later."

    From:

    http://help.chaosgroup.com/vray/help...ght_params.htm

  3. #3
    Senior Member Bruce Hart's Avatar
    Join Date
    Sep 2003
    Location
    Brisbane
    Age
    42
    Posts
    253

    Name
    Bruce Hart
    Forum Username
    Bruce Hart

    Australia

    Default Re: store with irradiance map

    If you turn on the diagnostic "show samples" option in the Irradiance Mapping options, your render will show the points on the geometry where IM is sampling from. With Store Irradiance map on, you will notice the show samples option will indicate little white dots in the shadow areas cast by the specific light (where normally they do not). In other words, the shadows are "baked" in to the IM solution. This is why they appear more blurry and less accurate, but will render faster. I while back I thought that this setting made the shadow subdivsions of the light irrelevant, but in actual fact they still affect the shadow quality calculated by the IM (according to what Vlado on Chaos said). I tend to use this setting on large area lights, where shadow quality is not noticeable. That setting can be a real time saver

    HTH

Closed Thread

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Similar Threads

  1. Please help on Irradiance map
    By msanandkumar in forum V-Ray
    Replies: 7
    Last Post: September 16th, 2009, 04:21 AM
  2. irradiance map:how to do it
    By smr_VIZ in forum V-Ray
    Replies: 2
    Last Post: November 20th, 2008, 08:11 AM
  3. Irradiance map problem!
    By ravi_chawda1981 in forum Work in Progress (WIP)
    Replies: 7
    Last Post: June 30th, 2008, 12:38 AM
  4. irradiance map..
    By shikodesign2000 in forum V-Ray
    Replies: 1
    Last Post: December 16th, 2006, 08:31 AM
  5. Irradiance Map Viewer
    By pontius_00 in forum V-Ray
    Replies: 0
    Last Post: June 3rd, 2006, 11:58 PM

Posting Permissions

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