I believe mental ray has a limit of 64 textures per triangle, not per object. However, since XSI only allows one material per triangle (not to be confused with material shader), the limit is effectively 64 textures per material. That is described in the mental ray manual in the early sections, but I'm too lazy to look it up right now. I wouldn't be surprised if other renderers have the same limit as it's a common choice.
A good test would be to apply a default material to the object (without textures). Next, create two polygon clusters and apply unique materials to each cluster, each with 64 textures. None of the textures used by the first cluster material should be used any the second cluster material, and vice versa. If it renders successfully, it means the texture limit is per triangle (per material). If it fails, it means there's likely a bug in the XSI to mental ray translator and you should file a bug report to supp...@softimage.com. Matt Date: Thu, 29 Aug 2019 23:17:40 -0400 From: Kris Rivel <krisri...@gmail.com> Subject: render tree mixer/texture limit To: softimage@listproc.autodesk.com Hey all…been ages but still here! Weird question but anyone know if the render tree has a max limit on the number of nodes, 8mixers or textures it can load beyond any memory issue…just physical “number” limit? I have about 65+ texture nodes plugged into a stack of mixers and all was working fantastic but I noticed some are missing and only show up in render if I unplug a few. So I'm thinking that I've hit some sort of ceiling. I have no memory issues at all, they're just not there and mysteriously show up if I cut some out. If there is a limit, anyway to bypass it? Kris ------ Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm.
