Fix rotation and MPI for multiple IBs #788
Merged
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Description
Fixes issue #787
This PR fixes two bugs:
Why not working?
(a) The normal vector of the triangular facets are not rotated with the vertices. The ray-tracing become erroneous when
the unrotated normal vectors are used.
(b) The rotation did not consider the original center of the geometry is not at the origin of the coordinate.
What's the fix?
(a) Include the normal vector in the process of the model transformation, but skip the scale and translation parts.
(b) Shift the geometry to the origin before rotation and shift it back to its original position after the rotation.
Type of change
Please delete options that are not relevant.
Scope
How Has This Been Tested?
Please describe the tests that you ran to verify your changes.
Provide instructions so we can reproduce.
Please also list any relevant details for your test configuration
Test Configuration:
Without rotation and translation:
With rotation and translation:
Checklist
./mfc.sh format
before committing my codeIf your code changes any code source files (anything in
src/simulation
)To make sure the code is performing as expected on GPU devices, I have: