Corona Renderer version 2 Daily Builds Changelog

[Ryuu]

• Corona now respects LUT_xD_INPUT_RANGE when loading *.cube LUTs
• Added support for CoronaColorCorrect in Standalone
• DR server now displays local IP address
• Fixed viewport display of shader trees containing Corona texmaps after opening scene - https://corona-renderer.com/bugs/view.php?id=2988
• Fixed multi-materials being classified as unsupported (and thus preserved if “Preserve unsupported materials” is checked)

[Ryuu]

• UHD cache is no longer reset in IR when only the current camera/viewport has moved or rotated, speeding up IR restarts
• Fixed occasional crash with falloff map
• Fixed falloff map submaps sometimes not being loaded in DR
• “Export + Render” button in devel/experimental rollout is now disabled when a render is running
• Added localization for button tooltips in Error window and VFB history tab

[Ryuu]

• Added subdivision quality (screen/world size) override to displacement modifier
• Maximizing VFB for the first time after IR is launched now works correctly. VFB also stays maximized now when render is stopped and started again (either IR or production render)
• Fixed occasional crashes with Falloff map
• Fixed camera target moving slightly whenever CoronaCamera moves
• Added OpenVDB support (CoronaVolumeGrid)

[Ryuu]

• Fixed slow interactive rendering after “reset scene” is used
• Standalone no longer displays a modal dialog when it fails to open the log file
• CScatter
  • Scattered instances displayed in the viewport as dots, point clouds, or wire boxes now use wire colors of original objects.
  • Fixed spline scattering to correctly respect the Offset (now entered as percentage amount of the Spacing). The change affects only new scenes. For old scenes it can be enabled by disabling Legacy mode checkbox in the Scattering rollout.
  • Improved tooltips related to spline scattering.
  • Scattering density in Surface/Bounding Box scattering is now entered as a number of instances per square/cube of a given size (defined by edge length).
  • Fixed spline scattering to correctly respect maximum number of instances.
• CVolumeGrid
  
  • UI made a bit more compact
  • "grid" in UI renamed to "channel"
  • added checkboxes to quickly disable/enable emission/absorption/scattering
  • grid/channel names are now loaded from all files in the sequence, not just from the first one
  • emission data can now be optionally interpreted as temperature (calculating black body radiation color) + associated temperature scaling - this is automatically detected for Phoenix FD files and for others containing "temperature" channel
  • fixed numeric keys not working when editting input scale in grid/channel mapping dialog

[Ryuu]

• Fixed HDR maps sometimes load loading correctly, this bug was introduced in previous daily build
• Fixed the bug when empty LUT filename was returned in MaxScript from newly created camera
• Fixed the bug when corona camera target was not visible when camera is created from toolbar or maxscript
• Decreased memory consumption of all scenes by 5-15%
• Fixed crash when CoronaLight was assigned as distance object in CoronaDistance map

[Ryuu]

• CVolumeGrid
  • Stats now show volume grid size in scene units
  • Vertical scrollbar is now displayed in stats if the text does not fit in status box
  • Temperature channel of VDB files generated from Phoenix FD is now scaled to roughly 0-1 range to allow easier custom grid mapping
• Interactive no longer starts with temporarily full render resolution for first time. This fixes excessive lag when starting interactive for the first time while having big render resolution set.
• Improved unicode support at few places, such as: cgeo proxy metadata, uninstaller not working for non-ASCII paths, unicode in passwords not supported
• Fixed denoising a region being potentially slower than denoising the whole image
• CoronaColorPicker
  • Fixed ColorPicker not working with substance map (https://forum.corona-renderer.com/index.php/topic,14916.0.html)
  • Fixed ColorPicker not working with Standard 3ds Max lights (https://corona-renderer.com/bugs/view.php?id=2665)
  • Fixed ColorPicker not working with 3ds Max color palette (https://forum.corona-renderer.com/index.php/topic,13913.0.html)
  • Color changes are now properly registered by the undo system (https://corona-renderer.com/bugs/view.php?id=2160)
• Added right-click menu to toolbar buttons with options to delete the button or launch 3ds max “customize user interface” dialog
• Fixed Scatter crashing when scattering unknown objects from missing plugins. Scattering of such objects is not supported.
• Material Library's "Select in scene" feature now also selects objects which have the material applied in Hair & Fur modifier.
• Noise level is now recomputed at the end of the rendering after final results from all DR slaves are gathered
• Fixed animated CoronaBitmap not working correctly in animation preview (https://forum.corona-renderer.com/index.php?topic=15742.0)
• Fixed exposure in VFB post processing tab being incorrectly disabled when rendering from CoronaCam with just tone mapping override enabled

[Ryuu]

RC1

• Added a warning when an image is rendered with disabled denoising and the render is then resumed with denoising turned on. This is an issue similar to resuming the render from EXR (https://coronarenderer.freshdesk.com/support/solutions/articles/12000009087)
• Fixed bug where noise level in VFB stats tab is displayed as 0% after some passes instead of "unknown" when adaptivity is disabled
• Fixed crash when opening some older scenes
• Fixed UI slowdown with complex material shaded in viewport
• New version of material library
  • More than 100 new materials
    • Hair materials
    • Roofing and tiles
    • New carpet materials (Fabrics category)
    • Leather
    • New brick and stone materials
    • New wood materials
    • Road materials
  • Modified materials for real-world scale support - the material library should now be independent of display/system units in 3ds Max scene

[Ryuu]

RC2

• Fixed LightMix not working properly with lights set as ShadowCatcher illuminators
• Fixed bug where text was getting truncated when Corona Error window was resized
• Martin Geupel’s (DeadClown here on Corona forum) Corona Converter script updated to version 1.42
  • fixed errors in VraySSS2 material conversion with old vray versions
  • added support for VRayColor2Bump
  • added simple VrayBumpMtl conversion
  • fixed displacement checkbox in VraySSS2 Mtl
• Fixed CoronaSun created from maxscript having no target
• Fixed crash when rounded edges in fast mode + displacement + water level was used together
• Fixed 3ds Max not responding when multiscatter parameters are modified in IR - https://corona-renderer.com/bugs/view.php?id=3030
• Toolbar button “create camera from active perspective view” now automatically selects the newly created camera
• Material library data files (both new and for older versions) moved to servers with greater bandwidth, allowing for much faster downloads
• Fixed bug where CIE did not remain maximized after loading a new image
• Buttons in all Corona materials, maps and objects are now correctly grayed out when they are disabled
• Map buttons in LayeredMtl are no longer disabled/grayed out when the map usage is disabled by checkbox, to make it consistent with other Corona materials and maps
• Fixed bug when showing hidden object did not restart interactive rendering
• Fixed occasional freezes during render when Vector Map is used
• Fixed noise level sometimes rising when rendering with DR
• Fixed Proxy Exporter script altering normals of the original object (https://forum.corona-renderer.com/index.php?topic=20291)
• Fixed CoronaColor not working correctly when “input values are in linear color space” was used together with negative HDR values (yes, it is possible to use negative HDR values to specify very saturated colors)
• Fixed pixel probe having unreadable text when user uses specific Windows skin

[Ryuu]

RC3

• Fixed seam created by BumpConverter on objects with symmetry modifier.
• Fixed pixel probe in CIE having unreadable text when user uses specific Windows skin.
• Fixed occasional IR restarts caused by (auto)saving the 3ds Max scene.
• All materials in Material Library now have the "Show Shaded Material in Viewport" option enabled by default. Does not affect rendering.
• Fixed occasional crash when moving animated Corona Camera.
• Fixed material library search box losing focus when typing.
• Fixed displacement sometimes unnecessarily subdividing triangles in flat heightmap patches.
• Fixed bounding box scattering mode to correctly respect non-default densities of distribution objects. The fix affects only newly created scenes. For old scenes the fix can be enabled by disabling Legacy mode checkbox in the Scattering rollout.
• Postprocessing, denoising, LightMix, and all other settings are now correctly merged while merging CXR images in CIE, both in GUI and command-line version.
• CVolumeGrid
  • Inverted meaning of frame offset parameter to be consistent with CProxy
  • Inverted meaning of absorption tint and color mapping. Setting absorption tint to some color will now actually tint the volume in the scene to the set color
  • Emission in blackbody mode can now be additionally modified by curves in the color mapping dialog.
  • “?” help button from grid mapping dialog replaced with general “Online help” button in CVolumeGrid itself launching a help page in browser
• Error Window no longer shows up on warnings if “Error only” option is set.
• Fixed CoronaBitmap blur parameter not working when used as environment background
• Material previews in Material Library now open resized to maximum (native) size. If any of them gets resized during current Max session, size of the last resized one will be used instead.
• Fixed problems in DR when camera with non-ASCII name was used
• Fixed inverted mapping on backside when using Triplanar texture
• Fixed occasional crash when moving VFB render regions during rendering
• Fixed UvwRandomizer map not displaying preview in slate material editor correctly
• Fixed occasional crashes when CoronaDistance map is used in VolumeGrid

[Ryuu]

RC4

• LightMtl no longer allows negative intensity
• Right-click menu in include/exclude lists (e.g. CoronaLight include/exclude) expanded with “select objects in scene” and “add objects to scene selection” options
• CVolumeGrid
  • Fixed rendering artifacts when step size was set too low
  • Fixed step size being incorrectly internally interpreted to be specified in voxels instead of scene units
  • Absorption map now tints the volume color instead of selecting which color will be absorbed, to be consistent with other absorption controls
  • Cell counts in status window now contain thousands separators and are shortened for large values for better readability
  • Fixed crash when rendering CVolumeGrid with no grid files loaded
  • Fixed OpenVDB files not being sent to slaves when using Backburner
  • Emission/absorption/scattering tint color is now disabled and not taken into account when a map is set
  • Stats box moved to a separate rollout
  • Fixed absorption to really represent basically a color tint of the volume
  • Fixed channels being reset to their autodetected values when reloading VDB file
  • Grid mapping dialog “reset” button now resets to defaults, not to the state before the dialog was open
  • Fixed size of an empty grid being displayed as “xx”
  • Fixed changing animation frames generating key frames with autokey on
  • Emission is now disabled when a file is loaded and no emission channel is auto-detected
• Fixed issue with rotated CoronaBitmap and enviro mapping
• CCamera - fixed automatic tilt not working correctly in animations
• Material library
  • Renamed some of the new materials to have more descriptive names.
  • Previews are now rendered in bigger resolution.
  • Category Foliage has been renamed to Nature. Favorite Foliage materials will be reset due this change.
• CScatter
  • Fixed  bug causing different scattering (moved/missing instances in some  cases) on Intel CPUs vs. on AMD Threadripper/Ryzen CPUs. In rare cases  some instances may be scattered a bit differently.
  • Fixed the Scatter Lister to avoid Maxscript errors with the new Corona Scatter parameters
  • Improved tooltips.
• Slightly reworked mtl override excludes UI
• Added bokeh anisotropy factor to CoronaCamera

[Ryuu]

Final Release

• Fixed CoronaCam anisotropy parameter being sometimes set to non-zero value when loading older scenes (this will also unfortunately reset the anisotropy parameter to 0 for all existing cameras)
• Fixed CVolumeGrid animation start parameter not working correctly in 3ds Max 2015
• Fixed slow viewport rendering when CoronaCam was selected