Ok.
Если взять нижеприведённый файлик и запускать рендер как "prman test.rib", то оно сразу выдаёт GPF.
Если запускать как "netrender test.rib", то сначала считается, а падает только в конце.
Получено из ShadeTree 1.4:
----------------- test.rib start -------------
Option "limits" "bucketsize" [ 16 16 ]
Option "searchpath" "shader" [".
:C:\Programs\ShadeTree\PRMAN-3.9/include"]
FrameBegin 1
# CAMERA AND IMAGE INFO
Display "brick_plain-6" "framebuffer" "rgba"
Format 256 256 1
Projection "perspective" "fov" [35]
PixelSamples 2 2
ShadingRate 2.0
# TRANSLATE CAMERA BACK FROM WORLD CENTER
Translate 0 0 3.2
# SWITCH RIGHT HANDED TO LEFT HANDED
Scale 1 1 -1
# SCENE DECRIPTION
WorldBegin
# LIGHTS
LightSource "ambientlight" 1 "lightcolor" [1 1 1]
TransformBegin
Rotate 0.0 0 0 1
Rotate 0.0 0 1 0
Rotate 0.0 1 0 0
Translate 0 0 10
LightSource "pointnofalloff" 2
"lightcolor" [0.8 0.8 0.8]
"from" [0 0 10]
TransformEnd
Illuminate 1 1
Identity
# BACKGROUND OBJECT
AttributeBegin
Color [ 0.4 0.4 0.4 ]
Opacity [ 1 1 1 ]
Surface "constant"
# Background 'card'
Patch "bilinear" "P" [ -5 -5 -3
5 -5 -3
-5 5 -3
5 5 -3 ]
AttributeEnd
AttributeBegin
Color [ 1.0 1.0 1.0 ]
Opacity [1 1 1]
# Bound displacement is off
Surface "brick_plain"
Rotate 0.0 1 0 0
Rotate 0.0 0 1 0
Rotate 0.0 0 0 1
Patch "bilinear" "P" [ -1 -1 0 1 -1 0 -1 1 0 1 1 0 ]
AttributeEnd
WorldEnd
FrameEnd
----------------- test.rib end -------------