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新功能
Build 1.50.RC4 (12 Jan 2007)
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New features:
New render elements: VRayMatteShadow, VRayTotalLighting, VRayRawTotalLighting.

Modified features:
Updated WIBU-key drivers for 32- and 64-bit Windows* (including Windows* Vista*) are included with the installation;
VRaySun is now compatible with the 3dsmax Daylight system and can be selected as a sun type;
VRayDisplacementMod now supports high-dynamic range textures for displacement in "2d landscape" mode;
VRayPhysicalCamera supports horizon line in the viewports, clipping and environment near and far ranges;
Distributed rendering can now be started as a BackBurner job;
VRayColor texture has an option to apply gamma correction to the displayed color in the UI;
"Don't affect colors" option for color mapping; useful if you only need the sampling adaptation to be performed;
"Cutoff" threshold parameter for VRayLight's allows to reduce render times in scenes with many weak lights;
"Envrionment priority" option added to VRayMtl to control environment override behaviour between different materials;
Options for directly controlling the render mode (region, crop etc) of the V-Ray VFB;
"No GI on other mattes" and "GI surface ID" parameters added to VRayMtlWrapper;
Matte objects with the "Shadows" option checked will now generate VRayRawLighting, VRayRawShadow and VRayMatteShadow elements;
If "Check for missing files" option is checked, DR will now fail on the render slaves if some maps cannot be found, instead or rendering wrong buckets;
If there are several VRaySun nodes in the scene, VRaySky will now pick the first one that is enabled (rather than the first one at all);
V-Ray will now force multithreading when 3dsmax is in slave mode, regardless of the 3dsmax multithreading option;
When rendering to texture (RTT) the 3dsmax VFB is now always generated, regardless of whether the V-Ray VFB is on or off;
VRayFur can now generate motion blur with more than 2 geometry samples;
The irradiance map viewer will print out the progress of merging irradiance maps;
The autosave file names for irradiance/light cache/photon/caustics maps are now updated at each frame, rather than only at the render start;
The irradiance/light cache/photon/caustics maps are auto-saved as soon as they are computed, rather than at the end of the frame/rendering;
The "Save maps per frame" option has been removed from the GI rollout;
VRayProxy will now re-link the .vrmesh file at each frame, rather than only at the render start;

Known issues:
When rendering a 3dsmax Raytrace material applied on VRayProxy objects, V-Ray will crash;

Bug fixes:
"Affect shadows" and "Affect alpha" options did not work for VRayMtls inside a Multi/subobject material (RC3 bug);
Moving VRayPhysicalCamera caused spurious MacroRecorder events about the target distance changing;
Problems with 2D displacement (RC3 bug);
Automatically created VRaySky did not have a name;
Horizontal scrolling problems with the V-Ray messages window;
VRayOverrideMtl could cause 3dsmax to crash;
Multi/subobject material inside a VRayBlendMtl etc. did not render;
64-bit V-Ray could fall into an infinite cycle when rendering 2d displacement;
Some rare raycaster precision errors were fixed;
Starting/finishing rendering could be extremely slow in 3dsmax R9;
VRayHDRI always took at least 10 MB of memory, regardless of actual image size (RC3 bug);
Incorrect irradiance map density and texture sharpness when using camera clipping planes;
Missing files (textures/VRayProxies etc) were not always detected correctly;
Distributed rendering between mixed 32/64-bit V-Ray versions did not work properly;
Standard materials with transparency did not render properly (RC3 bug);
No motion blur for ParticleFlow on 64-bit 3dsmax;
Color corrections from the V-Ray VFB were applied to the alpha channel when splitting the render channels to files;
Crash with the "Show map in viewport" option for VRayMtl when using Direct3D (RC3 bug);
Textures with mapping channels greater than 1 are now correctly shown in the Material Editor;
The "Global light level" options from the Environment dialog now affect the color of VRayLights and standard 3dsmax lights;
VRayBlendMtl did not list the blend textures as sub-anims;
If "Render to raw image file" option for the V-Ray VFB was ON, but the file name is empty, V-Ray would freeze while rendering;
The parameters of VRayMtlWrapper did not have proper names in Track View;
If the primary GI engine was light cache or photon map but GI is turned off, standard materials would render black;
VRayMtl materials with low glossiness inside a VRayBlendMtl could produce polygonal artifacts on shadow/light boundaries;
The pixel aspect ratio from the Render Scene dialog was ignored when rendering with DR to the 3dsmax VFB;
A low-dynamic range 3dsmax frame buffer was used even when saving to a high-dynamic range file format (.exr, .hdr etc);
Problems when rendering animations in DR mode with light cache as both primary and secondary engine;
Small rectangle area lights could produce artifacts for points lying close to the light plane;
Somewhat better memory management for proxies and dynamic meshes;
Crashes with VRayFur on animated objects when using motion blur;
Incorrect environment color with several VRayLights in "dome" mode;
"Crop" render mode with the V-Ray VFB did not work for animations;
Sporadic crashes when using the "Camera Map Per Pixel" texture inside V-Ray materials (VRayMtl, VRayLightMtl etc);
VRayBmpFilter did not always display its bitmap texture successfully;
VRayBmpFilter could produce invalid colors;
Photon mapping could produce wrong GI on transparent surfaces;
Crashes with interpolated glossy reflections/refractions if there is only 1 sample in the interpolation map;
Irradiance map produced incorrect results when used with VRayLight in "Light portal" mode;
Faceting on low-poly geometry when using anisotropic reflections with UV-channel mapping;
Incorrect sampling with gamma color correction when some of the pixel RGB components is zero;