Using CRT-Royale in Dolphin Emulator

[PhysicBerry]

CRT-Royale is generally considered one of the best CRT filters around, and is regularly used in RetroArch and other emulation programs. However, when trying to use it in Dolphin (the .glsl version, since it seems to be the only kind of shader Dolphin supports) I run into errors/difficulty. Does Dolphin not support multi-pass shaders, or is there a better way to use this shader with standalone Dolphin? Ideas are appreciated.