Hope everyone is well? I have a question around ground plane reflection with Arnold and C4D. No matter what options I try I cannot seem to get the correct perspective around ground plane projection reflection. I have looked high and low and so far only found Maya workarounds.
So far I have tried setting up a Ray-Switch network identical to the Maya 2020 solution. Turned on and off shadows in the Tag parameter options for the Shadow-Matte (with and without Ray-Switch Network) which resulted in weird anomalies (pic 2 and 3), despite that often mentioned in posts/tutorials as the go to solution. It appears the only way I can get close is with the Ray-Switch which Arnold for C4D appears to be missing a 'perspective type' option in the projection node? (See Ray-Switch Shader below).
Any help would be appreciated!
Close but no cigar!
Incorrect perspective reflection? (Using Ray-Switch with Spherical type) No 'Perspective type' option available?
Tag Parameter shadow option set to 'on', Correct ground plane reflection but black area shows.
Tag parameter shadow option set to 'off' HDRI and ground-plan competing against each other.
Ray-Switch Shader Tree:
I designed 2 test options with 1x being an RGBA Projection, The second a Camera Projection shader. Both identical render results in (top pic).