Corona Renderer 4 for 3ds Max - Daily Builds Changelog

[sevecek]

• DR server no longer complains about backburner not being installed for 3ds Max 2019+ (these versions don’t need backburner installed for DR)
• Images stored in render history are now always displayed with their original postprocessing parameters instead of using the current VFB parameters, so the render history can be used to compare different versions of tone mapping, denoising etc.
• CoronaColorCorrect map:
  
  • Added an option to use controls of different map, allowing to use the same color correction on multiple input maps.
  • Fixed histogram in the curve editor not updating when input map is added or removed
  • Histogram controls in curve editor are now disabled when no input map is connected
• When resizing the VFB by double clicking the rendered image, the maximum size of the VFB is now limited by the resolution of the monitor which is currently displaying the VFB
• Fixed wrongly evaluated view-dependent maps when plugged into slots in Corona Scatter
• Added a checkbox for turning on memory optimizations of geometry (at a cost of rendering perfomance) to performance rollout; it was previously in development/experimental rollout.

[Ryuu]

• Fixed saturation -1 not resulting in grayscale color (both in VFB and ColorCorrectTex)
• Fixed error when loading LightMix CONF files

[Ryuu]

Build 2019-05-09 (sorry, it took us a bit longer than expected to test this build)

• Fixes and improvements of the fast caustics solver
  
  • Fixed issue when caustics disappear after adding new light sources
  • Fixed issue when caustics disappear after adding large geometry
  • Caustics are now influenced by bump mapping
  • Caustics now work with rayswitch material
• Added fisheye projection type to CoronaCamera

[Ryuu]

• Added option to use multiple environment maps and suns at the same time
  
  • Multiple suns in a single scene are now supported
  • In Scene tab of render settings, you can now choose advanced setup mode of scene environment to set multiple environment maps
  • Environment direct visibility, reflections and refractions overrides were moved to the new advanced setup mode
  • For each LightSelect element you can choose which of the multiple environment maps (if any) will be included
  • The automatic "Setup LightMix" button creates a separate LightSelect element for each sun and for each environment map
• Corona Proxy has lower consumption of memory when keep in RAM is disabled
  
  • Disabling “keep in RAM” option also disables full mesh visualization
• Lowered memory usage during displacement computation (especially when input geometry has high polycount)

[Ryuu]

• New & improved:
  • CoronaCamera fisheye projection in orthographic and stereographic modes now limits FOV angle to 180 and 359 degrees respectively since higher angles are ignored by these modes.
  • Added new spinner allowing to set upscaling factor of image rendered during IR. It is located in the System settings window and might be useful to tweak when using a High-DPI display.
  • Improved refresh rate when running IR in Corona VFB
  • The “Show VFB” button in render settings now opens the Corona VFB with correct resolution and render regions even before first render was started
• Bugfixes:
  • Fixed the button opening environment setup dialog in LightSelect element rollout not being greyed out when disabled.
  • Fixed some rare cases of crash when modifying CoronaCamera FOV or focal length
  • Fixed instances scattered by Corona Scatter not to pop out when rendering them with DR/Backburner while Temporal consistency is enabled.
  • Fixed NANs occuring when using environment which is mostly black (but not completely)
  • Fixed NaNs and crashes when scrubbing timeline while IR is running with the new light solver enabled
  • Fixed Wirebox display mode in Corona Scatter not to be slow and stuck Max's UI anymore.
  • Fixed crash when resolution is changed while doing A/B comparison in VFB with IR running

[Ryuu]

• Fixed bad VCM/bidir renderer memory usage, general slowness, when used in scenes with refraction/media
• Added green-magenta tint to VFB and CoronaCamera
• Fixed denoising being run for other render engines than progressive even though it should be disabled
• Fixed a bug causing VFB to move to the second monitor when double-clicked
• Installer icon reverted back to the classic Corona icon
• Fixed high quality denoiser blurring hair primitives with non-hair material assigned too much
• Fixed random crashes with 3ds Max native lights
• Fixed reaching target noise level taking much longer time when high quality denoising is enabled
• Fixed crash when editing shape map with CoronaTriplanar while running IR

[Ryuu]

Release Candidate 1

• Changed the way CProxy visualization method interacts with the "keep in memory" checkbox - All the visualization methods are now always available and when the method is set to full mesh, the "keep in memory" checkbox is disabled because we need the proxy data in memory to display full mesh
• Fixed caustics solver causing fireflies when glossiness of reflection or refraction is lower than 1
• Fixed CoronaDistance map not working in displace modifier
• Environment overrides have been moved from environment dialog back to render settings.
• Added checkboxes enabling generation of caustics to Sun, Light, LightMtl and Environment (this one is located in the caustics rollout in the render settings)
• Fixed some some scenes rendering much slower when both adaptivity and high quality filtering were enabled at the same time
• Fixed high quality filtering sometimes producing NaNs (producing completely black VFB with bloom & glare enabled)
• High quality filtering is now auto-disabled in IR when the IR preview denoiser is enabled
• Added checkbox to VFB history tab for switching between using the current or the stored postprocessing settings
• Updated Intel AI denoiser to version 0.9.0
  • Up to 38% lower memory consumption
  • The denoiser now displays its progress and can be cancelled
  • Few bugfixes

[Ryuu]

Release Candidate 2

• Fixed caustics not working with subsurface scattering
• Fixed Bloom and Glare progress bar disappearing after closing and reopening the VFB
• Fixed slow closing of curve dialog in CoronaColorCorrect map
• Fixed crash when using distance map with displace modifier on 3ds Max 2016 and older
• Fixed crash when using the “Show VFB” button after stopping IR render in docked VFB
• Small UI tweaks

[Ryuu]

Release Candidate 3

• Fixed crash when editing render regions shortly after render is (re)started
• Fixed Corona Scatter to support maps using Object XYZ mapping.
• Fixed CoronaTriplanar “rotation” being labeled as “offset” in additional parameters in slate material editor
• In Corona Scatter the plus button for Instanced objects can now add CVolumeGrid objects.

[Ryuu]

Release Candidate 4

• VFB history tab - renamed the checkbox switching between current and stored VFB settings being used for comparison to make its functionality more clear
• Fixed VFB “Pick” button not being grayed out when it’s disabled
• Fixed issue, where Volume Grid scattered by Corona Scatter was duplicated when running IR
• Default number of maps in multiple environment maps mode changed to 2
• Added warning when a LightSelect element is set to include non-existing environment map.
• Fixed being able to create a new region while VFB regions are disabled, which resulted in deleting all existing regions
• Added "close button" to environment multimap dialog
• Changed the way environment light select elements are named using the “Setup LightMix” button so that they are usable as filenames when saving the scene
• Minor performance optimizations
• When the VFB history item name is clicked, the whole name text is preselected so that you can easily overwrite it
• Fixed Corona 4 uninstaller not correctly uninstalling some files from previous Corona 3 installation
• Improved performance of Corona Scatter when using Density map and Max limit of instances. Scattering in older scenes is not affected unless the Legacy checkbox gets disabled.
• Fixed Corona Scatter when using maps (foremost animated maps) not to slow down viewport.
• Fixed crash when a network adapter with no address exists in the system
• Fixed crash with newer versions of FumeFX

[maru]

Corona Renderer 4 for 3ds Max has been released: https://corona-renderer.com/blog/corona-renderer-4-for-3ds-max-released/
Closing this!