light is allowed to pass through transparent objects?
8507
Why is glass transparent?
9777
Black artifacts when looking through many transparent objects?
24764
Why can't light pass through walls but sound can?
91709
Examples in which the light maximizes the optical path length
70725
Material Opacity in viewport?
111730
transparency in image used for texture?
48802
Can blender use the Alpha channel of an image as transparency on a plane?
130412
Combining transparency
15084
Make transparent object not layer up itself
22385
Why is the atmosphere transparent in the visible spectrum?
26074
Seeing strange things in light
61988
Why do two beams of light pass through one another without interacting?
131765
Make light paths only pass through non-emitted areas?
9643
Black holes are transparent?
91520
Transparent render layers
125686
graphics with \setbeamercovered{transparent}
94568
make an image that appears transparent (but has a background) actually transparent