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[EDIT] I had to upload a small patch today (Monday) to fix V-Ray RT GPU performance and a specific issue with VRayHairInfoTex; you will recognize it by the V-Ray RT version - 2.20.02
Note: The recent versions of the nVidia drivers will take about 4.5 GB of RAM to compile the GPU code. Make sure you have it free
V-Ray 2.20.01 is now available for download from our site at http://www.chaosgroup.com/ Here is the changelog since the previous release is as follows:
Build 2.20.01 official (4 December 2011)
==============
New features:
(*) VRayHairMtl specifically for fur and hair rendering;
(*) VRayOrnatrixMod modifier for direct rendering of Ornatrix hair;
(*) VRayHairInfoTex texture for additional hair shading effects;
(*) VRayPTex texture provides support for PTex files;
(*) MaxScript functions for access to the V-Ray VFB contents;
(*) V-Ray RT: added "Real zoom" option to the ActiveShade quad menu to modify the rendered region (zoom, pan) directly in the ActiveShade window;
(*) MetaSL support in VRayGLSLMtl and VRayGLSLTex;
Modified features:
(*) V-Ray RT GPU: initial support for VRayBlendMtl materials;
(*) V-Ray RT GPU: rendering of VRayProxy objects;
(*) V-Ray RT GPU: support for affect diffuse/specular/reflection for VRayLights;
(*) V-Ray RT GPU: support for simple skylight portals;
(*) V-Ray RT GPU: support for textured area and mesh lights;
(*) V-Ray RT GPU: limited support for the Falloff map;
(*) V-Ray RT GPU: support for Tiles and other procedural textures (through baking to bitmaps);
(*) V-Ray RT: ability to use the 3ds Max bitmap proxy system for the ActiveShade;
(*) V-Ray RT: support for 32-bit ActiveShade buffer;
(*) V-Ray RT: add a "Reload" button for VRayHDRI that works with V-Ray RT;
(*) Distributed rendering: option to specify a maximum number of render slaves;
(*) Distributed rendering: when a slave completes a DR render, it will automatically try to join other running DR jobs;
(*) ply2vrmesh: added support for .bgeo files in ply2vrmesh;
(*) ply2vrmesh: added -info option to ply2vrmesh to print information about .vrmesh files;
(*) Irradiance map format (*.vrmap) has changed - map files from V-Ray 2.20 cannot be opened by previous V-Ray versions;
(*) imapviewer: added -incremental command-line option and "File > Incremental add" menu item for incremental merge of irradiance maps produced by V-Ray 2.20;
(*) imapviewer: added ability to load and display light cache files;
(*) VRayMtl: added "Affect channels" option for reflections;
(*) VRayGLSL: split into a VRayGLSLTex texture and a VRayGLSLMtl material;
(*) VRayGLSLMtl: support for built-in BRDFs;
(*) VRaySun: added filter color for VRaySun;
(*) VRayMultiSubTex: added option to specify the number of IDs in VRayMultiSubTex;
(*) VRayMultiSubTex: reworked the VRayMultiSubTex texture to use lists of properties, rather than separate parameters;
(*) VRayFastSSS2: ability to save/load illumination maps for VRayFastSSS2 material;
(*) VRayHDRI: add the "time" rollout for controlling IFL files to VRayHDRI;
(*) VRayHDRI: support for tiled mip-mapped TIFF files;
(*) VRayHDRI: optimized VRayHDRI bitmap performance;
(*) VRayIES: expanded the "Use light shape" option for VRayIES to allow the shape to affect light distribution;
(*) VRayBPTracer: support for distributed rendering;
(*) VRayBPTracer: support for the VRayLightSelect render elements;
(*) VRayDisplacementMod: added option to smooth UVs for subdivision displacement;
(*) VRayLensEffects: improved multithreading for VRayLensEffects;
(*) Optimized memory usage and multithreaded performance for dynamic geometry;
(*) Optimized the VRay2SidedMtl material for GI calculations when translucency is greyscale;
(*) Add an option to the VRaySamplerInfo render element and texture to wrap the UVW coordinates in the [0,1] range;
(*) VFB: added ICC color correction to the V-Ray VFB;
(*) VFB: added right-click menu to the items in the V-Ray VFB history;
(*) VFB: right-click menu option to add and edit comments in V-Ray History per image;
(*) VFB: ability to do A/B VFB comparison with a rendered image in the V-Ray VFB;
(*) VFB: the frame stamp is now saved to and loaded from the V-Ray VFB history images;
(*) When writing a raw .exr file, V-Ray will attempt to produce a scanline version of the file instead of tiled one;
(*) Added a glossiness render element, also for texture baking;
(*) Added a Clear option for the Previous render list in the System rollout;
(*) Changed the default image sampler to Adaptive DMC;
(*) Exposed the irradiance map preview mode parameter in the UI;
(*) Reduced flickering of the irradiance map and light cache when "Time independent" DMC option is disabled;
(*) Disable any HSDS modifiers before saving the scene for DR;
(*) SDK: switched to Intel C++ 12.1 compiler;
(*) SDK: shaders can provide their own sampling rays for GI;
(*) SDK: multithreaded expansion of dynamic primitives;
Bug fixes:
(*) Nitrous: VRayHDRI did not show up in Nitrous viewports;
(*) Nitrous: support for the VRaySky environment texture in the Nitrous viewports;
(*) Nitrous: the first time the user selects "Show realistic material in viewports" the objects with this material disappear;
(*) The material texture maps were not shown in the Max2012 shaded viewport;
(*) DR: fixed hanging buckets in specific cases;
(*) DR: slaves with missing files continuously tried to re-join a DR render when "restart slaves on render end" was on and "Check for missing files" was enabled;
(*) DR: if a render slave failed to receive the entire irradiance map from the client it still continued the render producing wrong buckets;
(*) VRayBPTracer: region rendering did not work;
(*) VRayFastSSS2 did not work correctly with light exclusion;
(*) Assigning a texmap to material texmapslot caused a crash when the texmap was disabled;
(*) Exclude from shadow casting did not work for VRayIES lights;
(*) Fixed a crash when rendering with Particle Flow emitted from animated geometry;
(*) Fixed a crash with VRaySun when the scene is rendered with the scanline renderer;
(*) Fixed uneven motion blur for fast moving objects with many geometry samples;
(*) Scrubbing the time slider created keys for the FOV parameter;
(*) The .vrscene exporter script did not export the "cast shadows" property of lights correctly;
(*) The .vrscene exporter script did not detect animated textures properly;
(*) The .vrscene exporter script did not export correctly objects with animated topology;
(*) VFB: Pressing the "set A" or "set B" button when the VFB history is empty lead to a crash;
(*) VFB: Fixed a crash when importing specific .acv file;
(*) Relative path names for raw image files did not work;
(*) Crash with Particle Flow events in specific scene;
(*) VRayFlakesMtl material did not work with the VRayMtlSelect render element;
(*) Pixel Info window showed colors only for one image during A/B compare;
(*) Fixed artifact with light portals;
(*) The height parameter for VRayEnvironmentFog is now greyed out when there are gizmos attached;
(*) VRayEnvironmentFog did not allow to pick multiple gizmos and lights through the "Select by Name" dialog;
(*) Incorrect self-shadowing of hairs by themselves for VRayFur and the 3ds Max Hair & Fur modifier;
(*) Mapped VRayLightMtl does not work as direct light if the color is set to black;
(*) Hanging buckets with VRayBlendMtl material when one of the blend textures returns an invalid color;
(*) VRayStereoscopic shademap files were not closed after reading;
(*) VFB history did not display render times for history images;
(*) Disappearing geometry when VRayVelocity pass is used;
(*) Issues with the MAX.vray preset in 3ds Max 2012;
(*) AA filter type not saved in V-Ray presets;
(*) Loading a V-Ray preset does not respect the selected rollouts;
(*) Scripted materials are not handled properly when assigned as sub-materials;
(*) V-Ray RT: environment override slot in VRayMtl did not work with glossy materials;
(*) V-Ray RT: DOF did not work with animated cameras;
(*) V-Ray RT: gamma issues with the ActiveShade window;
(*) V-Ray RT: IFL sequences did not work with VRayHDRI;
(*) V-Ray RT: initialization error in stage 2 when Mix material is used as normal map;
(*) V-Ray RT: differences in RT with 3dsmax Composite map;
(*) V-Ray RT: environment override slot in VRayMtl materials doesn't work for glossy materials;
(*) V-Rat RT GPU: OpenCL code failed to compile with the latest nVidia drivers;
(*) V-Ray RT GPU: invisible dome lights were rendered as visible;
Best regards,
Vlado
[EDIT] I had to upload a small patch today (Monday) to fix V-Ray RT GPU performance and a specific issue with VRayHairInfoTex; you will recognize it by the V-Ray RT version - 2.20.02
Note: The recent versions of the nVidia drivers will take about 4.5 GB of RAM to compile the GPU code. Make sure you have it free
V-Ray 2.20.01 is now available for download from our site at http://www.chaosgroup.com/ Here is the changelog since the previous release is as follows:
Build 2.20.01 official (4 December 2011)
==============
New features:
(*) VRayHairMtl specifically for fur and hair rendering;
(*) VRayOrnatrixMod modifier for direct rendering of Ornatrix hair;
(*) VRayHairInfoTex texture for additional hair shading effects;
(*) VRayPTex texture provides support for PTex files;
(*) MaxScript functions for access to the V-Ray VFB contents;
(*) V-Ray RT: added "Real zoom" option to the ActiveShade quad menu to modify the rendered region (zoom, pan) directly in the ActiveShade window;
(*) MetaSL support in VRayGLSLMtl and VRayGLSLTex;
Modified features:
(*) V-Ray RT GPU: initial support for VRayBlendMtl materials;
(*) V-Ray RT GPU: rendering of VRayProxy objects;
(*) V-Ray RT GPU: support for affect diffuse/specular/reflection for VRayLights;
(*) V-Ray RT GPU: support for simple skylight portals;
(*) V-Ray RT GPU: support for textured area and mesh lights;
(*) V-Ray RT GPU: limited support for the Falloff map;
(*) V-Ray RT GPU: support for Tiles and other procedural textures (through baking to bitmaps);
(*) V-Ray RT: ability to use the 3ds Max bitmap proxy system for the ActiveShade;
(*) V-Ray RT: support for 32-bit ActiveShade buffer;
(*) V-Ray RT: add a "Reload" button for VRayHDRI that works with V-Ray RT;
(*) Distributed rendering: option to specify a maximum number of render slaves;
(*) Distributed rendering: when a slave completes a DR render, it will automatically try to join other running DR jobs;
(*) ply2vrmesh: added support for .bgeo files in ply2vrmesh;
(*) ply2vrmesh: added -info option to ply2vrmesh to print information about .vrmesh files;
(*) Irradiance map format (*.vrmap) has changed - map files from V-Ray 2.20 cannot be opened by previous V-Ray versions;
(*) imapviewer: added -incremental command-line option and "File > Incremental add" menu item for incremental merge of irradiance maps produced by V-Ray 2.20;
(*) imapviewer: added ability to load and display light cache files;
(*) VRayMtl: added "Affect channels" option for reflections;
(*) VRayGLSL: split into a VRayGLSLTex texture and a VRayGLSLMtl material;
(*) VRayGLSLMtl: support for built-in BRDFs;
(*) VRaySun: added filter color for VRaySun;
(*) VRayMultiSubTex: added option to specify the number of IDs in VRayMultiSubTex;
(*) VRayMultiSubTex: reworked the VRayMultiSubTex texture to use lists of properties, rather than separate parameters;
(*) VRayFastSSS2: ability to save/load illumination maps for VRayFastSSS2 material;
(*) VRayHDRI: add the "time" rollout for controlling IFL files to VRayHDRI;
(*) VRayHDRI: support for tiled mip-mapped TIFF files;
(*) VRayHDRI: optimized VRayHDRI bitmap performance;
(*) VRayIES: expanded the "Use light shape" option for VRayIES to allow the shape to affect light distribution;
(*) VRayBPTracer: support for distributed rendering;
(*) VRayBPTracer: support for the VRayLightSelect render elements;
(*) VRayDisplacementMod: added option to smooth UVs for subdivision displacement;
(*) VRayLensEffects: improved multithreading for VRayLensEffects;
(*) Optimized memory usage and multithreaded performance for dynamic geometry;
(*) Optimized the VRay2SidedMtl material for GI calculations when translucency is greyscale;
(*) Add an option to the VRaySamplerInfo render element and texture to wrap the UVW coordinates in the [0,1] range;
(*) VFB: added ICC color correction to the V-Ray VFB;
(*) VFB: added right-click menu to the items in the V-Ray VFB history;
(*) VFB: right-click menu option to add and edit comments in V-Ray History per image;
(*) VFB: ability to do A/B VFB comparison with a rendered image in the V-Ray VFB;
(*) VFB: the frame stamp is now saved to and loaded from the V-Ray VFB history images;
(*) When writing a raw .exr file, V-Ray will attempt to produce a scanline version of the file instead of tiled one;
(*) Added a glossiness render element, also for texture baking;
(*) Added a Clear option for the Previous render list in the System rollout;
(*) Changed the default image sampler to Adaptive DMC;
(*) Exposed the irradiance map preview mode parameter in the UI;
(*) Reduced flickering of the irradiance map and light cache when "Time independent" DMC option is disabled;
(*) Disable any HSDS modifiers before saving the scene for DR;
(*) SDK: switched to Intel C++ 12.1 compiler;
(*) SDK: shaders can provide their own sampling rays for GI;
(*) SDK: multithreaded expansion of dynamic primitives;
Bug fixes:
(*) Nitrous: VRayHDRI did not show up in Nitrous viewports;
(*) Nitrous: support for the VRaySky environment texture in the Nitrous viewports;
(*) Nitrous: the first time the user selects "Show realistic material in viewports" the objects with this material disappear;
(*) The material texture maps were not shown in the Max2012 shaded viewport;
(*) DR: fixed hanging buckets in specific cases;
(*) DR: slaves with missing files continuously tried to re-join a DR render when "restart slaves on render end" was on and "Check for missing files" was enabled;
(*) DR: if a render slave failed to receive the entire irradiance map from the client it still continued the render producing wrong buckets;
(*) VRayBPTracer: region rendering did not work;
(*) VRayFastSSS2 did not work correctly with light exclusion;
(*) Assigning a texmap to material texmapslot caused a crash when the texmap was disabled;
(*) Exclude from shadow casting did not work for VRayIES lights;
(*) Fixed a crash when rendering with Particle Flow emitted from animated geometry;
(*) Fixed a crash with VRaySun when the scene is rendered with the scanline renderer;
(*) Fixed uneven motion blur for fast moving objects with many geometry samples;
(*) Scrubbing the time slider created keys for the FOV parameter;
(*) The .vrscene exporter script did not export the "cast shadows" property of lights correctly;
(*) The .vrscene exporter script did not detect animated textures properly;
(*) The .vrscene exporter script did not export correctly objects with animated topology;
(*) VFB: Pressing the "set A" or "set B" button when the VFB history is empty lead to a crash;
(*) VFB: Fixed a crash when importing specific .acv file;
(*) Relative path names for raw image files did not work;
(*) Crash with Particle Flow events in specific scene;
(*) VRayFlakesMtl material did not work with the VRayMtlSelect render element;
(*) Pixel Info window showed colors only for one image during A/B compare;
(*) Fixed artifact with light portals;
(*) The height parameter for VRayEnvironmentFog is now greyed out when there are gizmos attached;
(*) VRayEnvironmentFog did not allow to pick multiple gizmos and lights through the "Select by Name" dialog;
(*) Incorrect self-shadowing of hairs by themselves for VRayFur and the 3ds Max Hair & Fur modifier;
(*) Mapped VRayLightMtl does not work as direct light if the color is set to black;
(*) Hanging buckets with VRayBlendMtl material when one of the blend textures returns an invalid color;
(*) VRayStereoscopic shademap files were not closed after reading;
(*) VFB history did not display render times for history images;
(*) Disappearing geometry when VRayVelocity pass is used;
(*) Issues with the MAX.vray preset in 3ds Max 2012;
(*) AA filter type not saved in V-Ray presets;
(*) Loading a V-Ray preset does not respect the selected rollouts;
(*) Scripted materials are not handled properly when assigned as sub-materials;
(*) V-Ray RT: environment override slot in VRayMtl did not work with glossy materials;
(*) V-Ray RT: DOF did not work with animated cameras;
(*) V-Ray RT: gamma issues with the ActiveShade window;
(*) V-Ray RT: IFL sequences did not work with VRayHDRI;
(*) V-Ray RT: initialization error in stage 2 when Mix material is used as normal map;
(*) V-Ray RT: differences in RT with 3dsmax Composite map;
(*) V-Ray RT: environment override slot in VRayMtl materials doesn't work for glossy materials;
(*) V-Rat RT GPU: OpenCL code failed to compile with the latest nVidia drivers;
(*) V-Ray RT GPU: invisible dome lights were rendered as visible;
Best regards,
Vlado
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