/usr/share/meshlab/shaders/shadersrm/ is in meshlab 1.3.2+dfsg1-2+b1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/meshlab/shaders/shadersrm/NormalMapping.rfx
/usr/share/meshlab/shaders/shadersrm/PhongUntextured.rfx
/usr/share/meshlab/shaders/shadersrm/QualityContour.rfx
/usr/share/meshlab/shaders/shadersrm/ZBrush.rfx
/usr/share/meshlab/shaders/shadersrm/cartoon.rfx
/usr/share/meshlab/shaders/shadersrm/old/
/usr/share/meshlab/shaders/shadersrm/old/Depth of Field.rfx
/usr/share/meshlab/shaders/shadersrm/old/GlyphBomb.rfx
/usr/share/meshlab/shaders/shadersrm/old/ImageBasedLighting.rfx
/usr/share/meshlab/shaders/shadersrm/old/Plastic.rfx
/usr/share/meshlab/shaders/shadersrm/old/RenderToTexture.rfx
/usr/share/meshlab/shaders/shadersrm/old/cubeenvmap.rfx
/usr/share/meshlab/shaders/shadersrm/old/fur.rfx
/usr/share/meshlab/shaders/shadersrm/old/hatching.rfx