Hardware Render Command Line Script Does Not Override Program Settings

[mattiasa]

Hi. I render particles, command line rendering with a .bat script, and I use the Maya hardware render (not hardware render buffer). It works, but I can not get the renderer to read the flag -b (by frame) from the script. This flag is always read from the Render Settings in the Maya program - very annoying cuz then I have to update here all the time instead of only updating the script...

My script is called mbr.bat. The line in my script that renders the particles looks like this:

render -r hw -of tif -fnc 6 -s 1 -e 1400 -b 100 -rfs 1 -rfb 1 -cam shotCam1 -rl rl00part1 -im l00part1 -rd C:\Projects\images\20070130 C:\Projects\scenes\mysceneabc.mb

I use Maya 7.0.1

The rest of the images I render with mentalray. And mentalray reads the -b flag from the script just fine.

Am I doing anything wrong, or is this a bug in the software?

[joojaa]

Not all flags are defined for all renderers. So flags that work in mentalray dont need to work on hardware render.

To chek out what flags each individual renderer supports run render -r rednderername -?

For example half of the flags supported by mr aren't supported as such by the other rendreers. They are all separate programs and have their own flags.

[mattiasa]

Yes, I know. I did run the help-command:
render -r hw -h
or as you write,
render -r hw -?

where hw = maya hardware render. And it says that -b is supported:

Specific options for renderer "hw": Maya hardware renderer
..
-b float By frame (or step) for an animation sequence

The hw-renderer does support by-frame rendering in the sense that it does not have to render every frame, it can render with an interval. But it does not use the -b setting from the script - instead it uses the by-frame setting from the Render Settings in the software.
Its not a big deal, its just annoying.

[joojaa]

themn its a bug set it with mel, probebly not realted to the script at all but even if you typed the line it would happen UNLESS, you have some escaping problem of somekind wich is a syntax error

One other thibng chek taht your batch files environment is the same as you normal priviligies.