Originally posted by GecT Because the software renderer doesn't support the smooth preview. Mental Ray however, does. Thanks. Looked into that and 1) didn't have the plugin activated BTW thanks for your FAQs as that is where I found this little nugget. Now I have tried to render with Mental Ray and I have a new problem. Nothing renders except the complete eyeball. I have looked around and made sure that all of the layers are selected as being rendered but it still is rendering just the eyeball. Also found a couple of warnings in the script editor and have included them below. Thanks again. d renderWindowRender redoPreviousRender renderView; import maya.app.stereo.stereoCameraRig as stereoCameraRig stereoCameraRig.isRigRoot('persp') # Result: False # editRenderLayerGlobals -currentRenderLayer "defaultRenderLayer"; about -p; // Result: Maya Unlimited 2010 // mentalrayUI ""; workspace -q -rte images; // Result: images // file -q -exn; // Result: /Users/Roontoon/Documents/maya/projects/default/scenes/BigBadWolf-test-5.0.2.mb // import maya.app.mentalray.textureFileConversionUtils mrProgress -e -bp -pd 0 -l "analyzing"; miPmCreate; miPmSetCancelMode 0; miPmSetMessage "analyzing"; miPmSetPercent 0; miPmSetVisible 1; mrProgress -e -ep; miPmClose; mrProgress -e -bp -pd 0 -l "translating"; miPmCreate; miPmSetCancelMode 0; miPmSetMessage "translating"; miPmSetPercent 0; miPmSetVisible 1; format -stringArg "2" "number of render thread(s): ^1s"; // Result: number of render thread(s): 2 // mrProgress -e -l "translating frame 23" -pd 0; miPmSetMessage "translating frame 23"; // Warning: (Mayatomr.Nodes) : mentalrayIblShape1: IBL ignored. File texture not found, or constant black input color. // // Warning: (Mayatomr.Nodes) : mentalrayIblShape1: IBL ignored. File texture not found, or constant black input color. // // Warning: (Mayatomr.Nodes) : mentalrayIblShape1: IBL ignored. File texture not found, or constant black input color. // untitledFileName; // Result: untitled // mrProgress -e -ep; miPmClose; mrProgress -e -bp -pd 0 -l "mental ray"; miPmCreate; miPmSetCancelMode 0; miPmSetMessage "mental ray"; miPmSetPercent 0; miPmSetVisible 1; mrProgress -e -l "mental ray rendering image" -pd 40; miPmSetMessage "mental ray rendering image"; miPmSetPercent 40; mrProgress -e -l "mental ray rendering image" -pd 85; miPmSetMessage "mental ray rendering image"; miPmSetPercent 85; mrProgress -e -l "mental ray rendering image" -pd 95; miPmSetMessage "mental ray rendering image"; miPmSetPercent 95; mrProgress -e -ep; miPmClose; untitledFileName; // Result: untitled // mrProgress -e -ep; updateMayaSoftwareTargetFilePreview; updateEditorFeedbackRenderLayer RenderLayerTab defaultRenderLayer;