Hello people, So here I am with a whole new issue. Last week I was working as usual on my scene and wanted to batch render it. It didn't worked out. Status goes from "Rendering with..." to "Render complete" without rendering anything. Since my settings for the render are very basic I thought there was a problem with my objects or shaders. SO I tried with another scene. Same problem. So I tried alot of solutions : stopping firewall/antivirus (as suggested on other forums), importing my scene in a new one, changing my settings, setting new shaders, etc. Finally I created the simplest scene ever : A cube in the middle of nowhere with the native shader on it 'lambert1) and the default settings for the render : still do not work ... SO this is a huge problem to me and I hope some have good tips to solve it because i am a bit desperate actually. I have straight deadlines to respect and I am blocked with this issue. As I said my scene is very simple : only polygons with bones and curves rigged, all the materials are lamberts or phongs, sometimes surface shader but for the scene with only the cube there is just poly with lambert and nothing else so I guess it do not depends of my scene and what is in it. Also, third party software seems not to have any influence on my problem as far as I know, but I maybe wrong. Here is what my render log says (I had to use MentalRay to increase verbosity level but usually for this project I use maya software to render my scenes) : 6/10/2013 Starting "C:\Program Files\Autodesk\Maya2013\bin\mayabatch.exe" Qt: Untested Windows version 6.2 detected! mental ray for Maya 2013 mental ray: version 3.10.1.4, Jan 31 2012, revision 165283 File read in 0 seconds. Result: D:/.../scenes/Cube__10096.mb Prog: (Mayatomr.Scene) : optimize animation detection: done 3 animated nodes MEM 0.0 6 MB info : virtual memory limit set to 6329 MB API 0.0 6 MB debug: begin options miDefaultOptions LIB 0.0 6 MB debug: {_MI_REG_FBVIRTUAL}: registry entry {_MI_REG_FBVIRTUAL} not found LIB 0.0 6 MB debug: {_MI_REG_FBVIRTUAL}: registry entry {_MI_REG_FBVIRTUAL} has no value LIB 0.0 6 MB debug: registry lookup: "{_MI_REG_FBVIRTUAL}" -> "" Info: (mental ray) : number of render thread(s): 8 LINK 0.0 6 MB debug: searching for symbol mi_surf_sds_create Info: (Mayatomr.Nodes) : custom string options found Info: (Mayatomr.Nodes) : derive mental ray global approximation settings from Maya Info: (Mayatomr.Nodes) : derive mental ray global displacement settings from Maya API 0.0 6 MB debug: begin options miDefaultOptions LIB 0.0 6 MB debug: registry lookup: "maya_state" -> "maya_state" Info: (Mayatomr.Scene) : update lights and related shaders PHEN 0.0 6 MB debug: add shader 0x6d3 with decl 0x5bf LIB 0.0 6 MB debug: registry lookup: "adskFrameBufferState" -> "adskFrameBufferState" PHEN 0.0 6 MB debug: add shader 0x6d4 with decl 0x658 PHEN 0.0 6 MB debug: delete shader 0x6d3 Info: (Mayatomr.Scene) : update cameras and related shaders PHEN 0.0 6 MB debug: add shader 0x6d3 with decl 0x5bf PHEN 0.0 6 MB debug: delete shader 0x6d4 PHEN 0.0 6 MB debug: add shader 0x6d4 with decl 0x658 LIB 0.0 6 MB debug: registry lookup: "maya_shaderglow" -> "maya_shaderglow" PHEN 0.0 6 MB debug: add shader 0x6d5 with decl 0x631 API 0.0 6 MB debug: shader shaderGlow1:perspShape LIB 0.0 6 MB debug: registry lookup: "adskMayaVolumeEngine" -> "adskMayaVolumeEngine" PHEN 0.0 6 MB debug: add shader 0x6d6 with decl 0x68e API 0.0 6 MB debug: shader volumeEngine1 LIB 0.0 6 MB debug: registry lookup: "adskFrameBufferData" -> "adskFrameBufferData" PHEN 0.0 6 MB debug: add shader 0x6d7 with decl 0x65b API 0.0 6 MB debug: begin userdata perspShape:fbdata PHEN 0.0 6 MB debug: delete shader 0x6d7 PHEN 0.0 6 MB debug: delete shader 0x6d7 API 0.0 6 MB debug: begin camera perspShape PHEN 0.0 6 MB debug: delete shader 0x6d5 PHEN 0.0 6 MB debug: add shader 0x6d5 with decl 0x631 API 0.0 6 MB debug: begin instance persp Info: (Mayatomr.Scene) : update geometry and materials Debg: (Mayatomr.Scene) : DAG path: groundPlane_transform Debg: (Mayatomr.Scene) : ... transform Debg: (Mayatomr.Scene) : DAG path: groundPlane Debg: (Mayatomr.Scene) : DAG path: persp Debg: (Mayatomr.Scene) : ... pruned Debg: (Mayatomr.Scene) : DAG path: top Debg: (Mayatomr.Scene) : ... pruned Debg: (Mayatomr.Scene) : DAG path: front Debg: (Mayatomr.Scene) : ... pruned Debg: (Mayatomr.Scene) : DAG path: side Debg: (Mayatomr.Scene) : ... pruned Debg: (Mayatomr.Scene) : DAG path: pCube1 Debg: (Mayatomr.Scene) : ... transform Debg: (Mayatomr.Scene) : DAG path: pCubeShape1 LIB 0.0 6 MB debug: registry lookup: "maya_vertexdata" -> "maya_vertexdata" PHEN 0.0 6 MB debug: add shader 0x6dc with decl 0x656 API 0.0 6 MB debug: begin userdata pCubeShape1:vxdata PHEN 0.0 6 MB debug: delete shader 0x6dc PHEN 0.0 6 MB debug: delete shader 0x6dc Debg: (Mayatomr.Scene) : ... polygon mesh Prog: (Mayatomr.Scene) : DAG node: pCube1 Debg: (Mayatomr.Scene) : shading group: initialShadingGroup LIB 0.0 6 MB debug: registry lookup: "adskMayaLambert" -> "adskMayaLambert" PHEN 0.0 6 MB debug: add shader 0x6dc with decl 0x67a API 0.0 6 MB debug: shader lambert1 LIB 0.0 6 MB debug: registry lookup: "adskMayaFastShadow" -> "adskMayaFastShadow" PHEN 0.0 6 MB debug: add shader 0x6de with decl 0x65d API 0.0 6 MB debug: shader lambert1:shadow API 0.0 6 MB debug: begin material initialShadingGroup LIB 0.0 6 MB debug: registry lookup: "adskMayaShadingEngine" -> "adskMayaShadingEngine" PHEN 0.0 6 MB debug: add shader 0x6e0 with decl 0x667 PHEN 0.0 6 MB debug: delete shader 0x6de PHEN 0.0 6 MB debug: delete shader 0x6de PHEN 0.0 6 MB debug: add shader 0x6de with decl 0x65d LIB 0.0 6 MB debug: {_MI_REG_METASL_SUPPRESS_COMPILATION}: registry entry {_MI_REG_METASL_SUPPRESS_COMPILATION} not found LIB 0.0 6 MB debug: {_MI_REG_METASL_SUPPRESS_COMPILATION}: registry entry {_MI_REG_METASL_SUPPRESS_COMPILATION} has no value LIB 0.0 6 MB debug: registry lookup: "{_MI_REG_METASL_SUPPRESS_COMPILATION}" -> "" LIB 0.0 6 MB debug: {_MI_REG_METASL_FLATTEN}: registry entry {_MI_REG_METASL_FLATTEN} not found LIB 0.0 6 MB debug: {_MI_REG_METASL_FLATTEN}: registry entry {_MI_REG_METASL_FLATTEN} has no value LIB 0.0 6 MB debug: registry lookup: "{_MI_REG_METASL_FLATTEN}" -> "" API 0.0 6 MB debug: begin object pCubeShape1 API 0.0 6 MB debug: begin instance pCube1 API 0.0 6 MB debug: begin instgroup :MayaTranslatedWorld Info: (Mayatomr.Scene) : render camera: persp LIB 0.0 6 MB debug: registry lookup: "adskMayaVolumeEngine" -> "adskMayaVolumeEngine" PHEN 0.0 6 MB debug: add shader 0x6e6 with decl 0x68e API 0.0 6 MB debug: shader volumeEngine1 PHEN 0.0 6 MB debug: delete shader 0x6d6 PHEN 0.0 6 MB debug: delete shader 0x6d6 PHEN 0.0 6 MB debug: add shader 0x6d6 with decl 0x68e PHEN 0.0 6 MB debug: delete shader 0x6e6 Result: D:/.../scenes/Cube__10096.ma Fatal Error. Attempting to save in C:/Users/.../20130610.1004.ma Maya exited with status 255 Originally Posted by Render Diagnostic says : 0 Warning.