zasid Posted April 21, 2008 Share Posted April 21, 2008 Hello everyone , I am having problem in image base lighting my scene. Scenario is I have a sphere on which I m having my HDRI image in that image there is windown very bright so that is my key light portion how do I make that area to illuminate my objects more other than that in Image base lightning I have tried all method of GI lighting from Environment lightning via environment lite and HRDI map placed in that Area light turned into environment lite and the hdri placed on it even vex global illumination shader on lite template but in all I cannot figure out how to rotate my sphere and get it to lite up on my exact location where I want the lite from the window to illuminate my scene . I am posting the test hip file and the hdri for convenience .I will be very thankful for the help. IBL_PROBLEM.hip scene_hdri.zip Quote Link to comment Share on other sites More sharing options...
michael Posted April 21, 2008 Share Posted April 21, 2008 you can use LightGen from here: http://projects.ict.usc.edu/graphics/HDRShop/ it will spit out a file that has actual lights based on your HDR image... that was you can edit them however you want.... HTH Quote Link to comment Share on other sites More sharing options...
zasid Posted April 21, 2008 Author Share Posted April 21, 2008 Hello Micheal, Thanks but there is problem with Lite gen output with H9 cant read it properly. Quote Link to comment Share on other sites More sharing options...
michael Posted April 22, 2008 Share Posted April 22, 2008 it may not have been updated...I haven't used it in years... you might try dolwnloading a version of H8 and trying there... Quote Link to comment Share on other sites More sharing options...
rob Posted April 22, 2008 Share Posted April 22, 2008 (edited) I would be interested in an answer on this also rob Edited April 22, 2008 by rob Quote Link to comment Share on other sites More sharing options...
zasid Posted April 23, 2008 Author Share Posted April 23, 2008 hello Rob , I have figured it out Gallen Helped me wit that . Just apply the map to your enviroment lite and rotate it at an angle of 45 90 180 270 and 360 and u will see the difference . one more tip I would like to add to it is to watch you shadow direction once its going at the opposite way to the britest point than that will be ur key lite point. HTH . Thanks Gallen for helping me out with that Quote Link to comment Share on other sites More sharing options...
dbukovec Posted April 23, 2008 Share Posted April 23, 2008 hi! just a quick note on this: if You place down the env light and hit enter int the viewport, You will get a manipulator (it's a dot with a slice of a sphere). Now imagine that the dot is where the spherical image wraps, so the opposite direction is the center of the HDR image. Hope it would make lighting easier for You. Quote Link to comment Share on other sites More sharing options...
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