Author Topic: Corona Renderer 7 for 3ds Max - Daily Builds Changelog  (Read 43780 times)

2021-05-10, 17:18:40
Reply #15

rowmanns

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  • CoronaPhysicalMtl
    • Added IOR mode to Physical material. It has two options
      • 1/ IOR - material behaves like before
      • 2/ Specular - all IOR inputs (base, clearcoat) are replaced with Specular inputs
    • Moved CoronaPhysicalMaterial in the material editor to be the first Corona material displayed, for easier access
    • Fixed volumetric scattering controls not becoming active when opacity is lowered
    • Improved hybrid glass - it now looks much closer to real glass (caustics on) and changing roughness from 0 to 0.001 does not result in significant change in a look.
    • Improved thin glass - now it blurs refraction depending on the roughness value. It also correctly simulates bouncing within the thin glass.
    • Changing IOR from 1 to 1.001 no longer results in drastic change of look (previously it did especially for high roughness values).
    • Examples:
  • Converter
    • Conversion from VRayLightMtl to CoronaLightMtl correctly propagates "Two Sided Emission" parameter, Shellac material is converted to CoronaLayeredMtl, the conversion process might be more performant in some cases.
  • General
    • Fixed object list spinners in Corona Scatter to show correct values in case they are animated and time on the timeline changes.
    • Updated Intel Denoiser to the latest version - fixes some bugs, especially the denoiser adding “ghosts” of objects that should not be visible due to lack of lighting
    • Fixed licensing server UI log not showing anything
    • Fixed a “reset to default” button in pop-up window warning users that not all logical cores are used during rendering. Until now it did not work as expected during interactive rendering.
    • Fixed possible NaNs when rendering Skin and Hair materials
    • Fixed problems with NaNs caused by some scenes with degenerated matrix
    • Fixed occasional crashes when rendering Corona Layered material
    • Added warning when a scene previously saved in a stable version gets overwritten in a daily build
      • The problem with this is that a scene saved in a newer version causes all sorts of problems when opened in an older version. The motivation of this is to prevent overwriting production scenes when experimenting with daily builds.
        Unfortunately we can’t cancel the 3ds Max saving process, so we just offer a chance to backup the original save file to another location before it is overwritten.


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2021-05-14, 17:36:00
Reply #16

rowmanns

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  • Corona Converter:
    • Greatly improved accuracy of conversions from VRay2SidedMtl.
    • Resulting shading networks might be simpler in some cases.
    • The conversion process might be more performant in some cases.
    • Improved detection and printing of conversion-related warnings.
  • OptiX (NVIDIA GPU AI denoiser) updated to version 6.5.0
    • All OptiX files are now part of the regular Corona installer, no longer requiring any additional download.
    • Requires NVIDIA GPU driver version 436.02 or later.
    • No change in supported GPUs, it should still work with Maxwell and later.
  • General
    • Added maxscript function to bake lightmix settings into the scene (same as clicking the corresponding button in VFB) - CoronaRenderer.CoronaFp.bakeLightMix
« Last Edit: 2021-05-14, 17:42:01 by rowmanns »
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2021-05-19, 08:21:00
Reply #17

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  • Optimisation
    • CoronaBitmap now loads texture files in background after the scene file has been open, while you are already working with the scene. Reduces scene open times by 20-40% in most cases, up to 70% in some extreme cases.
  • Corona Converter:
    • Added an option to automatically treat all translucent objects as objects with "Thin shell". This improves conversion of scenes where translucency effects are frequently used - e.g. scenes with vegetation.
    • [REGRESSION] Property switchToCoronaRenderer renamed back to switchRenderEngine, to avoid breaking any user scripts which may use it
  • General
    • Fixed Corona Scatter not to cause repetitive restarting of V-Ray GPU IPR when a scatter object gets disabled.
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2021-05-21, 11:24:40
Reply #18

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    • Corona Converter
      • Fixed a problem which sometimes occurred during conversion of V-Ray lights to Corona lights.
    • General
      • Updated embree to version 3.13.0 - various small bugfixes and optimizations
      • [REGRESSION] Lowered the amount of noise generated by optimization of multiple transparent hits
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    2021-06-01, 15:40:07
    Reply #19

    rowmanns

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    • Optimizations
      • Added asynchronous Corona proxy loading
        • On average between 10% and 30% speedup loading scenes which contain Corona Proxies
    • Corona Converter
      • Show selected objects maps in viewport now works with CoronaPhysicalMaterial and CoronaLegacyMaterial
      • Reset Material editor materials now resets materials to CoronaPhysicalMaterial
      • Fix bitmaps using “Mono Channel Output” now works with CoronaPhysicalMaterial
      • Removed legacy options and buttons
    • General
      • Open Image Denoise (Intel AI denoiser) updated to version 1.4.0 - various bugfixes and optimizations
      • Fixed possible crashes in Corona Scatter when some scattered instances get scaled to zero while using collision avoidance.
      • Improved warning message when setting presets in CoronaPhysicalMaterial
      • Fixed crash caused by memory overflow when rendering media
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    2021-06-03, 19:32:15
    Reply #20

    rowmanns

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    corona-7-3dsmax-daily-2021-06-03.exe
    • Improved Sky model
      • Added final version of the improved sky model. Unlike the previous version this one contains additional parameters: altitude and turbidity.
        • Note: This may change the look of scenes which use the Improved Sky model
    • Displacement
      • Fixed bug where displacement was removed even if override material was off, added preservation of displacement from layered material
      • Fixed displacement map being clamped to [0,1] range
      • Fixed displacement being wrongly applied in cases where it shouldn’t be
    • PhysicalMtl
      • Added switch to system settings determining whether IOR or specular mode is used as a default
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    2021-06-10, 16:35:50
    Reply #21

    rowmanns

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    • Corona Converter
      • Simplified the shading networks generated by the conversion
      • VRayMtl is now converted to CoronaPhysicalMtl directly instead of using CoronaLegacyMtl as an intermediate step
      • Made the error log more readable by adding additional indentation and newlines
      • Added better warning when V-Ray is not installed
    • General
      • Fixed crashes in some cases when bump map is evaluated to NaNs
      • CoronaNormal - improved tooltip for the “Add gamma to input” checkbox
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    2021-06-18, 13:31:58
    Reply #22

    rowmanns

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    • Improved sky model
      • Added atmospheric shader
        • Current known limitation: This does not function well with multiple suns/skies.
      • Corona no longer needs improved sky model data to properly load. If the data is not found we automatically switch to Hosek&Wilkie model and show an error message.
    • Corona Converter
      • Fixed errors during conversion with V-Ray 4
      • Fixed errors when converting Mental Ray and V-Ray portals
      • Fixed duplicate CoronaColor nodes being generated in some cases
      • Removed "Fix Bitmaps using "Mono Channel Output" used as opacity maps" button from Corona Converter - this functionality already works without the need for fix
    • General
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    2021-06-23, 13:15:10
    Reply #23

    rowmanns

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    • Improved sky model
      • Fixed green haze
    • General
      • Optimized scene parsing in some rare cases (e.g. displaced light sources)
      • Fixed DrServer in command line mode ignoring output being redirected to a file.
      • Fixed V6 regression of LightMix render element not shown by default when starting render
      • Fixed crash during scene parsing when using Pro Optimizer modifier
      • Fixed some rendering artefacts caused by infinite values in textures (e.g. EXR)
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    2021-06-29, 16:56:44
    Reply #24

    rowmanns

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    • Improved sky model
      • Fixed the improved sky volume effect having incorrect color (usually a magenta tint) when viewed through refractive or transparent surface
      • Remapped Improved sky model turbidity, so its default value is now the same as for the other models (2.5)
        • Note that this will unfortunately change a look of scenes created in the recent daily builds
    • Corona converter
      • Improved propagation of reflection parameters from original materials to CoronaPhysicalMtl.
      • Fixed incorrect conversion when PhysicalMtl is set to use specular instead of IOR by default
      • Fixed asserts during conversions of some scenes
    • General
      • Open Image Denoise (Intel AI denoiser) updated to version 1.4.1 - fixes some crashes when denoising certain resolutions
      • Fixed rare crash caused by rounding errors when evaluating texture map for a given pixel
      • Fixed crash when the Corona improved color picker is launched from maxscript colorPickerDlg function
      • Fixed crash when a Falloff map in Fresnel mode is connected to an IOR slot of any material through another map
        • Note that Falloff map in Fresnel mode is not supported in the IOR slot by Corona and doing this will trigger a warning and the material will be rendered as if nothing was connected to the IOR slot.
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    2021-07-02, 16:34:03
    Reply #25

    rowmanns

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    • Improved sky model
      • Fixed new sky model being black below horizon in orthographic cameras
    • Corona converter
      • Fixed more problems when converting with having V-Ray 4 installed
      • When reporting problematic materials to maxscript listener, each material is now printed on a separate line, to improve readability
    • General
      • Added support for rendering newer Ornatrix objects
      • Fixed artifacts in the bloom & glare effect in some cases with very bright lights
      • Fixed some entries in viewport right click menu being disabled the first time this menu is open in a 3ds Max session
      • Fixed crash during 3ds Max startup when a Corona licensing log file cannot be opened for some reason
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    2021-07-14, 15:08:31
    Reply #26

    rowmanns

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    • Improved sky model
      • Fixed green/magenta tint in the new improved sky model volumetric effect when computed for short distances (under 200 meters)
      • Reintroduced fake horizon blur for Improved sky model. Default horizon blur is now 0, since the blurring should be controlled by the physically correct altitude parameter.
    • Corona converter
      • Fixed an issue with reflection parameters not being computed correctly when reflection map, IoR map or both were plugged to the original material.
      • Fixed asserts during conversion of some scenes in certain 3ds Max versions
      • Fixed “convert by class” not working for 3ds Max physical material
      • Fixed conversion not preserving the “show background in preview” option
      • Conversion now preserves material ID channel
      • Conversion from VRay2SidedMtl to CoronaPhysicalMtl now produces simpler shading networks
      • Polished the UI
    • General
      • Bucket rendering disabled for IR, because in some cases it is still too visually distracting.
        • Buckets are still enabled in production rendering after 5 passes, and in DR/Backburner/command line render from the render start, to get better performance. We'll experiment with IR buckets more in v8 to get some better solution.
      • Fixed render to texture not working
      • Fixed crash when using Forest Pack version 6
      • Fixed excessive rendering times and RAM usage in some corner cases caused by refraction
      • Fixed some checkbox labels being clipped in the render settings dialog
      • Added tooltip to randomization mode of MultiMap and UvwRandomizer mode, explaining that the "Instance" randomization is based on a node name and will change when the node is renamed
      • Added warning when proxy contains corrupted normals which cause it to render differently depending on whether the “keep in RAM” checkbox is checked.
    EDIT:
    • Material Library
      • Added 13 new metal materials
      • Added 13 new masonry materials
      • Added 9 new wood materials
        • All new materials are built upon the new physical material
      • Converted existing carpets, ceramic tiles, concrete and flooring materials to the new physical material
        • Note that this might result in a slightly different visual result, however existing scenes based on the previous versions of material library will be unaffected
    « Last Edit: 2021-07-14, 17:14:01 by rowmanns »
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    2021-07-16, 13:38:50
    Reply #27

    rowmanns

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    • General
      • Fixed objects with displacement disappearing in IR if you immediately resize the VFB during parsing
      • Fixed possible crashes occurring when VRayBitmap is plugged as density map in Corona Scatter.
    • Corona converter
      • Fixed environment mapping type being changed when converting from CoronaBitmap to 3ds Max Bitmap
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