Comment 12 for bug 1731788

Not in shadow, just not rendered without a valid shader.
I cannot replicate it on my systems. (Maybe somebody can prepare a VM image for Qemu or VirtualBox with emulated old Intel GPU?) Does it even occur without 3D planets and self-shadowing (which the error message points at), and without nomenclature (where the bug allegedly first appeared)?

I wonder why this problem was not already in V0.16.0 which introduced the current shader.
The error message complains about a non-constant index. I only see

sum += offset_lookup(sTex, coord, poissonDisk[index], zbias);

as possible candidate. This code should not be compiled when shadows are not active.