If you want to render some text in 3d, you can use openscad like:
echo 'linear_extrude(height = 1) text("Debian", font = "Kode Mono Semibold", halign = "center");' | openscad -o debian.stl -
3d-ascii-viewer -z 200 debian.stl

Convert the STL to OBJ:
assimp export debian.stl debian.obj # also generates you an MTL
3d-ascii-viewer --color -z 200 debian.obj

Render some SVG:
echo 'linear_extrude(height = 1) import("openlogo-nd.svg");' | openscad -o debian-nd.stl -