Dear chimera hackers, In the old Chimera (not X), if I put two transparent spheres in a .bild file: one sphere can completely hide the other (e.g. a small one inside of a bigger one). While, if there was true transparency, no sphere should completely hide another. Is this better handled in ChimeraX? I _love_ .bild files, because it is so easy to generate them in order to annotate a 3D molecular system then view all of it (molecules + annotations) in Chimera. https://www.cgl.ucsf.edu/chimera/docs/UsersGuide/bild.html Thanks a lot, F. PS: here is an example problematic .bild file for the old chimera --- .color green .transparency 0.750000 .sphere -0.542700 0.122500 -0.047867 1.500000 .sphere 1.060560 -1.270600 -0.236620 1.500000 .color orange .transparency 0.750000 .sphere 0.611100 -2.324200 -0.346200 1.250000 .sphere 1.108100 2.092000 0.140700 1.250000 .sphere -3.097400 0.651000 0.062700 1.250000 .color grey .transparency 0.750000 .sphere -0.542700 0.122500 -0.047867 1.500000 .sphere 1.060560 -1.270600 -0.236620 1.500000 .sphere -1.453700 2.784800 0.269900 1.500000 .sphere 3.272900 0.026100 -0.134900 1.500000 .sphere -2.354000 -1.959600 -0.245900 1.500000 ---