hair - infinite trace recursion

[andystopps]

Does anyone know anything about this ?

' ERROR : PHEN 0.4 error 051071: broke suspected infinite trace recursion
' ERROR : PHEN 0.7 error 051071: broke suspected infinite trace recursion

displayed when rendering hair , using Muh hair shader. There's nothing excessive about the number of hairs, etc. The only mention I can find on the net suggests that it's a bug in the shader, but I haven't seen it before with Muh hair.

[CHRIS3D]

read :
http://www.xsibase.com/forum/index.php?board=13;action=display;threadid=12253;s tart=90
and the following page.

chris

[nospitters]

yeah, got also the same error.
but the link above doesn´t help a lot. tried the newest muhhair shader. still the error. its definetely the transparancy option. if you turn it off then no error, its a bug.
but without transparancy muhhair looks awfull.
the strange thing is, that it appears randomly in my sequence that i have to render.
does somebody know the programmer? maybe he can fix that....

[andystopps]

I've just tried using Muhhair again, due to project-killing render times with the standard hair, and had no problems (transparency on). I haven't done a sequence yet, but given the vastly reduced time-per-frame, it would be worth accepting a few dud frames which needed to be rendered seperately.

Sorry, Christian, I didn't get around to replying to your answer at the time.

[nospitters]

as i wrote, it appears randomly. sometimes i can rerender the frames that are missing due to the error.
maybe it also depends on the secondary rays. i had thenm on 2, but on rerender i put it back to 5 (default).