thanks , ya i think i figured out the process, here it is from the manual, really Black Magic? all this to create 1 lut
Workflow A:
1. Set your resolution to High Definition within the Config screen.
2. Load the trim_lut0.dpx file located at /Library/Application Support/Blackmagic Design/ DaVinci Resolve/trim_lut0.dpx into the Browse screen’s media pool. Within the Color screen you will now see the Trim LUT file within the thumbnails.
3. Select a normal image clip on the timeline and color grade the desired offset or effect. You can grade this image like any other. Once done, select the Trim LUT clip on the thumbnail timeline with your mouse to make it the current clip.
4. With the Trim LUT file as the current clip, using the center mouse button, click on the clip you just graded with the desired offset grade. This offset grading will now be applied to the Trim LUT file. (This is a standard DaVinci Resolve copy grade operation).
5. Then, within the Config screen LUT tab, assign a name to the new LUT to be generated using the ‘Save LUT as’ window.
6. Clicking on the Generate LUT button will create the new LUT that is an offset grade. It’s the grade you made to the original image. This LUT can now be selected like any other.
7. Update the LUT list that’s at the top of the LUT tab and select as an input, output or display LUT as required. You can also use the LUT on the color page in any node.
The new LUT will appear in the 3D LUT options and can be used in any of the places DaVinci Resolve normally uses 3D LUTs. It is also possible to capture an external Trim LUT or generate one with the Resolve LUT configuration and resolution by placing this Trim LUT Clip into an external device that applies a LUT.
http://www.linkedin.com/pub/gregory-white/13/4a9/336
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