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Mapping and Edge Blending Problem

Posted: Wed Apr 06, 2016 22:57
by vineetgaba
Hi,
I am working on the enclosing image (Projection Surface.jpg)
Projection Surface
Projection Surface
facade with 4nos of XGA (1024 X 768) projectors of 10K lumens. It is divided into three layers. First layer is Stair Case Second one is the center three arches and third one is upper portion. Projector Distance form First layer of Projection surface is 15.9m. Distance between First layer and Second Layer is 3m and distance between Second Layer and Third Layer is 8.5m. I had mounted 2nos of projectors on left hand side (LHS) on a plateform one above the other with heights from the ground 3.90m & 4.52m respectively and another 2 nos of projectors on Right Hand Side (RHS) with same arrangement as LHS, for reference enclosing the projector locations.jpg image
Projector Locations
Projector Locations
. I am Using Resolume Arena 4.2.2 for projection mapping with 1850 X 1390 composition size. I had position the camera at the center for rendering the Visual. Could you please let me know is it Correct position for it?
One another problem I am Facing whenever lower projectors project the image on layer 2 of surface some of content would be appear on layer 3 and then it would be distorted. How would I taken care of it with Edge Blending.
Another problem is blackout of some area how would i taken care of it. Please see the Projection Output.jpg image.
Projection Output
Projection Output
For your reference I am enclosing the Input slice information from Resolume, please see image Input slice.jpg
Input Slice
Input Slice
Please help me, how do i resolve these issues. :roll:

Re: Mapping and Edge Blending Problem

Posted: Wed Apr 06, 2016 23:23
by Zoltán
you should project from the rendering view point, center, especially with this building, where you have different depths(distance from projector) in the building surface,
or you need to use more blending slices for each distance.

(you can't correct 3D perspective with 2D mapping.)

Re: Mapping and Edge Blending Problem

Posted: Thu Apr 07, 2016 15:19
by vineetgaba
Hi ravensc.
Thanks for your reply. But I can't change my projectors locations & For multiple slicinging their is problem with triangle shadow on bottom left & bottom right side on projection surface (3rd layer) & whenever I enable edge blending mode it's give me black shadow on overlapping.

Please reply.
Thanks