neba77 Posted March 28, 2006 Share Posted March 28, 2006 Ok, it`s like this. I`ve been using linear workflow for some time now, and the question that i have is this: Since there are two methods of implementig it, i`ve sticked with the gamma correction color mapping method, and it has produced fine results, although with considerably longer rendertimes. I`ve tried the exr, post production method several times since it is been hailed as the quicker one. But. I have MAJOR glosiness noise issues with it. And it seems that the only way to minimize it is to crank up the subd. of the materials. The only problem is that with such high sudb. the rendertimes are longer than the gamma correction color mapping one. Now am i doing something wrong or are the qmc, and mat. subd. setting the only thing that eliminates noise in linerar, open exr method. Thanks! Link to comment Share on other sites More sharing options...
Christopher Nichols Posted March 28, 2006 Share Posted March 28, 2006 Nope.. this is all natural. A way to balance it is through the QMC settings. Increase the adaptivness to 1.0 and slowly reduce the noise threashold... .004, .003, etc... Also, if you are using lightcache, try and use the option to include the glossy rays in the lightcache. Link to comment Share on other sites More sharing options...
neba77 Posted March 29, 2006 Author Share Posted March 29, 2006 Ok, got it. But why cant i edit the anything but the exposure settings in photoshop later. Must i use combustion or after effects. What is the difference? Link to comment Share on other sites More sharing options...
BrianKitts Posted March 29, 2006 Share Posted March 29, 2006 if you're referring to the other photoshop properties such as other adjustments and filters, it is becuase your image is a 32bit floating point image from bringing it in as and HDR, or EXR. To do other stuff you have to convert it to an 8 bit image file menu--> (image>mode>8 Bits/channel) As far as I know there's no way to run the other adjustments on a floating point image. Link to comment Share on other sites More sharing options...
neba77 Posted March 30, 2006 Author Share Posted March 30, 2006 Yup, i know about no editing options for 32 bits in photoshop. I was thinking that i was doing something wrong. I am trying to find out is editing a 32 bit image possible in after effects, because Chris mentioned it in one of his compositing tutorials on chaosgroup forums that he was using after effects for it. Maybe i just misunderstood the whole deal... Thanks guys... Link to comment Share on other sites More sharing options...
Christopher Nichols Posted March 30, 2006 Share Posted March 30, 2006 Yeah... generally compositing packages are better at editing float images. Programs like AE, Nuke, combustion, etc... Image editors such as photoshop will be forced to change, since people will demand it more and more. Floating point HDRI will be the format of choice soon. As far as AE, the new one (version 7) advertises that it has full HDRI support., based on the demos (have not tried it myself), it looks pretty cool. Link to comment Share on other sites More sharing options...
neba77 Posted April 3, 2006 Author Share Posted April 3, 2006 Ok guys, thanks. I will have to go through some tutorials about AE comping then.... Link to comment Share on other sites More sharing options...
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