You won't see a difference between using an RGB color vs a greyscale color. For glass you normally use an IOR around 1.5, and both reflection and transmission set to 1.0. You have to make sure normals are pointing in the correct direction.
--
Roeland
Glasses at PMC - caustics smooth - fail!?
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How do I enable normal map
Normal map?
But ~64k-sample is good for almost true glasses.
Ok but I set reflection 0.5.roeland wrote:You won't see a difference between using an RGB color vs a greyscale color. For glass you normally use an IOR around 1.5, and both reflection and transmission set to 1.0. You have to make sure normals are pointing in the correct direction.
--
Roeland

But ~64k-sample is good for almost true glasses.

NOTE: I'm sorry for bad english due to mute 
i7-12700KF
2x16GB RAM@DDR4-3600
MSI PRO Z690-A DDR4
Zotac GF RTX 4090 <3
SSDs OCZ RD400 0.5TB and Crucial 2TB SATA3
HDD 1TB SATA2
LG BD-RE BH16NS40
PSU 1kW
CRT 19" Samtron 19"

i7-12700KF
2x16GB RAM@DDR4-3600
MSI PRO Z690-A DDR4
Zotac GF RTX 4090 <3

SSDs OCZ RD400 0.5TB and Crucial 2TB SATA3
HDD 1TB SATA2
LG BD-RE BH16NS40
PSU 1kW
CRT 19" Samtron 19"
