Hi, I have recently been attempting to create a plugin similar to the DisplaceGeo node. It would need to manipulate 3d geometry based on the pixels of the in input image. When working with 2D IOPs getting the pixels is pretty strait forward, just request the channels and bbox you want, then loop over the rows and read the pixels. I don't know how to do this with a GeoOP. I looked through all the examples and docs but I didn't see anything. Obviously it can be done as the DisplaceGeo and Postion2Points nodes make heavy use of it.
I was just wondering if anybody could point me in the right direction? Are there any docs I missed that cover this? Is there any example code out there that could help me? Any pointers? Thanks -scott-
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