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1
Please check this article covering the risks of using daily builds: Daily Builds FAQ
Use daily builds at your own risk and always make backups of important projects before opening them with a daily build installed.

Changes in Corona 10 for Cinema 4D (Daily Build 2022-11-28) (https://drive.google.com/drive/folders/1cMHzUt4QXW_KvapPe6Ar1k5e0SUKE8Ei):

  • Fixed:
    • Fixed IR crashes occuring in some specific cases (usually either complex scenes or some specific combinations with e.g. Xpresso usage)
    • Fixed problem with Corona Lights still showing in viewport even when viewport visibility was off or whole light was disabled
    • Fixed problem with IR not correctly updating when changing materials in Include/Exclude list in material overrides
    • Fixed missing UI button icons in Scanned material UI in older versions of Cinema 4D
    • Scanned material no longer shows requirement for V-Ray in its description in UI
    • Fixed problem with tone mapping from camera not being applied when rendering via Team Render Server

Note: All changes in this and previous build will be released in a v9 Hotfix

2
Please check this article covering the risks of using daily builds: Daily Builds FAQ
Use daily builds at your own risk and always make backups of important projects before opening them with a daily build installed.

Changes in Corona 10 for Cinema 4D (Daily Build 2022-11-03) (https://drive.google.com/drive/folders/1cMHzUt4QXW_KvapPe6Ar1k5e0SUKE8Ei):

  • Fixed:
    • Added 55 materials in material library that were missing in comparison to material library in 3ds Max (Glass, Nature and Plastic categories)
    • Fixed crash on macOS when opening color picker from Corona VFB when Redshift is installed
    • Fixed problem with installer sometimes showing error on macOS even when everything installs correctly

3
Please check this article covering the risks of using daily builds: Daily Builds FAQ
Use daily builds at your own risk and always make backups of important projects before opening them with a daily build installed.


Changes in Corona 9 for Cinema 4D (Release Candidate 3) (https://drive.google.com/drive/folders/1WyXJ0IZZYPxjSFNNNZTBXr6jZK9zrOZR):

  • Fixed/Changed:
    • Fixed material overrides not being applied on rendered splines and geopattern materials in "pattern object" mode
    • Fixed flipped cylindrical camera
    • Fixed "Use external browser" option from preferences having no effect for Cosmos on macOS
    • Fixed problem with tonemapping pipeline resetting to initial state in IR viewport after every change in document
    • Fixed crash in tone mapping UI when tone mapping operator is grabbed by mouse at the left edge
    • Fixed problem with LUT path in tonemapping presets loading as "C:\..." on macOS
    • Out-of-core textures are now disabled by default


4
Please check this article covering the risks of using daily builds: Daily Builds FAQ
Use daily builds at your own risk and always make backups of important projects before opening them with a daily build installed.


Changes in Corona 9 for Cinema 4D (Release Candidate 2) (https://drive.google.com/drive/folders/1WyXJ0IZZYPxjSFNNNZTBXr6jZK9zrOZR):

  • Added/Changed:
    • Added decal mode in UVW randomizer
    • Added "Viewport preview resolution" in clouds section in Corona Sky
    • Corona installer updated to use license server 6.0.0
  • Fixed:
    • Fixed Corona Sky preview in new C4D versions
    • Fixed crash when reordering tonemapping pipeline via Edit dialog while having focus in one of the spin edits
    • Minor UI fixes in tonemapping Edit dialog (tooltips, double click etc)
    • Edge trimming should now work also with Corona Proxy (including Cosmos presets)
    • Fixed problem with Corona proxy with Edge trimming shader not rendering in Scatter when it used relative path
    • Fixed imports of Scatter presets on macOS
    • Fixed problems when rendering Corona Scanned material on a sphere with "Perfect sphere" enabled
    • Fixed crash when removing material attached to rendered spline in IR
    • Fixed rendering of colors of instances scattered using Chaos Scatter when no material is attached (previously such instances rendered black)


5
[C4D] I need help! / Re: Python remove render region in VFB
« on: 2022-10-04, 12:43:56 »
Hi,
setting False into CORONA_SETTINGS_RENDER_REGION_ENABLED parameter of renderer video post should work - and it seems to be working here. I am attaching example that I tested here - running this script for any Corona scene should ensure it will render with render regions disabled.

Code: [Select]
# Get Corona renderer video post
PLUGINID_CORONA4D = 1030480
videoPost = c4d.documents.GetActiveDocument().GetActiveRenderData().GetFirstVideoPost()
while videoPost and not videoPost.IsInstanceOf(PLUGINID_CORONA4D):
    videoPost = videoPost.GetNext()

# Disable regions
if videoPost:
    videoPost[c4d.CORONA_SETTINGS_RENDER_REGION_ENABLED] = False

Note that setting this will either disable it immediately in VFB in case the current document is being rendered in VFB at the time you run this script or disable it for following render in case the render is not in progress.

6
Please check this article covering the risks of using daily builds: Daily Builds FAQ
Use daily builds at your own risk and always make backups of important projects before opening them with a daily build installed.


Changes in Corona 9 for Cinema 4D (Release Candidate 1) (https://drive.google.com/drive/folders/1WyXJ0IZZYPxjSFNNNZTBXr6jZK9zrOZR):

  • Added:
    • Added Corona Spline Render tag for rendering splines
    • Added Corona Scanned material for rendering Chaos Scans materials
    • Added support for contrails in Corona Sky
    • Added configurable seed for clouds in Corona Sky
    • Added option to use automatic pattern height in Corona pattern modifier
    • Added support for setting distribution shader in Chaos Scatter
    • Added support for edge trimming in Chaos Scatter using new Scatter Edge Trimming shader
    • Added option to control motion blur shutter speed using curve in render settings
    • Added checkbox to Corona Sun to apply shadows from clouds
  • Changed:
    • Out-of-core textures were moved from Development/Experimental tab and can now be configured in global preferences
    • Removed volumetric settings from Corona Sky shader - this was only accidentally exposed in Sky shader in one of previous daily builds and was not working - use Corona Sky object instead
    • Improved import of some Cosmos materials
    • Minor speed improvements when rendering multiple material previews
      • We measured about 5% improvement in our tests
    • Corona Camera UI is now separated into tabs
  • Fixed:
    • Fixed occasional crashes in QT6 reported in last daily build
    • Fixed crash when Sky ground color is set to colors above 1 (it was possible to set this in C4D 2023)
    • Fixed flipped axes when using Distance shader within Chaos Scatter
    • Fixed crash when VDB file fails to load in VolumeGrid object on macOS
    • Fixed bug with Corona Sun not being correctly affected by turbidity when using Corona Sky
    • Fixed problem with Main clouds and Cirrus moving in different directions in Corona Sky
    • Fixed problem where values values lower than 200m for "Height" cause tiling artifacts in clouds in Corona Sky
    • Fixed crash when resetting all curves in tone mapping


7
Please check this article covering the risks of using daily builds: Daily Builds FAQ
Use daily builds at your own risk and always make backups of important projects before opening them with a daily build installed.


Changes in Corona 9 for Cinema 4D (Daily Build 2022-09-19) (https://drive.google.com/drive/folders/1xoDTlVaxw6ovZ3-KLhUjdn5DowtEuAic):

  • Added:
    • Added support for Cinema 4D 2023
  • Fixed/Changed:
    • Improved rendering speed of Corona clouds
    • Faster IR parsing of Clouds
    • Fixed some more issues with tonemapping pipeline being reset when switching cameras
    • Chaos Scatter is now separate plugin
      • For now this is mostly internal change that will allow us to simplify development of Chaos Scatter
    • Fixed problem with decals not working on Corona pattern using materials from pattern object


8
Please check this article covering the risks of using daily builds: Daily Builds FAQ
Use daily builds at your own risk and always make backups of important projects before opening them with a daily build installed.


Changes in Corona 9 for Cinema 4D (Daily Build 2022-08-30) (https://drive.google.com/drive/folders/1xoDTlVaxw6ovZ3-KLhUjdn5DowtEuAic):

  • Added:
    • Added support for clouds in Corona Sky
    • Experimental implementation of out-of-core textures for Corona Bitmap
      • For now this can be enabled in Development/Experimental stuff by setting non-zero cache size and clicking "Update cache"
      • The UI is not final and will be changed in future versions
    • DOF is now also supported in fisheye camera
  • Fixed:
    • Fixed occasional crash in Corona Pattern when changing values in IR
      • this was reproducible on macOS, but could also happen on Windows
    • Corona Pattern now works on objects with other modifiers
    • Corona Light now works with modifiers
    • Fixed a bug when Corona pattern placed before other objects on the same hierarchy level prevented pattern from being applied on these objects
    • Corona Pattern can now be instanced, instance will work the same as if copy of referenced pattern would be placed in its place
      • Note that pattern must be referenced by instance directly, not as a part of hierarchy as in such case the hierarchy itself is instanced

9
Please check this article covering the risks of using daily builds: Daily Builds FAQ
Use daily builds at your own risk and always make backups of important projects before opening them with a daily build installed.


Changes in Corona 9 for Cinema 4D (Daily Build 2022-08-19) (https://drive.google.com/drive/folders/1xoDTlVaxw6ovZ3-KLhUjdn5DowtEuAic):

  • Added:
    • Added Corona Pattern modifier
      • Create a surface, apply the modifier by placing it under the object (just as with any other Cinema 4D modifier), place pattern-geometry under the Corona Pattern modifier and everything is set up
    • Decals can now be imported from Cosmos
    • Added option to preserve Slicer material when using material override
    • Added option to preserve opacity and bump when using material override
  • Changed:
    • Improved Corona Error window - improves performance when lot of errors is shown and fixes UI problems on macOS
    • ACES OT tonemapping operator is now used by default in new scenes
    • Cosmos browser on Windows now opens in its own window instead of external web browser
    • Removed support for Cinema 4D R14, R15 and R16
      • These versions are really old and required lot of maintenance time that we can now focus on improving new and existing features
  • Fixed:
    • Corona lights can now be instanced using both render instances and multi-instances (previously this only worked in IR)
    • Corona lights now also work with Chaos Scatter
    • Corona lights now support included/excluded objects also in viewport preview
    • Improved viewport performance when lot of Corona lights is present
    • Fixed issue when spherical Corona light would disappear when it was non-uniformly scaled in IR
    • Fixed rendering of Cinema 4D area light - Note that there is still only basic support for C4D lights
    • Fixed crash when loading corrupted Proxy file with full mesh preview enabled
    • Fixed problem when hidden object was rendered in IR when it was instanced by render instance or multi-instance
    • Fixed occasional crashes when changing instanced object render visibility in IR
    • Fixed occasional crashes when running Cinema 4D with low memory and low memory error was triggered
    • Fixed minor (few KB) memory leak when rendering
    • Fixed crash in decals caused by some objects with corrupted geometry
    • Fixed some cases when Layered material preview was not updated after changing its submaterials
    • Fixed minimum value for step in UVW randomizer
    • Fixed Corona using only E-cores of modern Intel CPUs on Windows 11 when in background

Note: during our testing we found some potential problems with Pattern on macOS when used in interactive rendering in scenes containing hair. We will examine these for the next daily build.

10
Hi,

the data container storing all Corona preferences can be retrieved from main C4D settings container under ID 1030480 - this ID is currently not visible in the .h files in plugin folders, but we'll try adding it in the future so that you wouldn't need to hardcode its value.

An example for reading PREF_CORONA_CORE_VERSION you mentioned would be:

Code: [Select]
coronaPreferences = c4d.GetWorldContainerInstance()[1030480]
coronaPreferences[c4d.PREF_CORONA_CORE_VERSION]

11
Please check this article covering the risks of using daily builds: Daily Builds FAQ
Use daily builds at your own risk and always make backups of important projects before opening them with a daily build installed.


Changes in Corona 9 for Cinema 4D (Daily Build 2022-05-24) (https://drive.google.com/drive/folders/1xoDTlVaxw6ovZ3-KLhUjdn5DowtEuAic):

  • Fixed:
    • Cosmos materials are now imported with correct scale when using triplanar mapping
    • Fixed crash when using Cosmos on macOS when both Corona and V-Ray are installed
    • Fixed crash when using search in Cosmos browser on macOS
      • this was changed on server side, so the problem should be also resolved for version 8 and previous version 9 daily builds
    • Fixed problems with importing Cosmos objects when path to assets download directory contains localized characters

12
Please check this article covering the risks of using daily builds: Daily Builds FAQ
Use daily builds at your own risk and always make backups of important projects before opening them with a daily build installed.


Changes in Corona 9 for Cinema 4D (Daily Build 2022-05-11) (https://drive.google.com/drive/folders/1xoDTlVaxw6ovZ3-KLhUjdn5DowtEuAic):

  • Fixed:
    • Fixed errors reported in command line version of Cinema 4D when loading Corona
    • Fixed import of some Cosmos materials on macOS
    • Fixed issues when using ColorPicker in Corona VFB with linear percent value types
    • Fixed issues (Non-Standard Format error) when loading different types of LUTs
    • Fixed problem with missing close button in About dialog in S22 on macOS

13
Hi,
the tone mapping operators are now stored as a separate nodes under Corona camera tag and Corona video post in render settings. This is because it is now possible to e.g. re-order these operators, add duplicate ones etc.

These operators are stored as standard C4D BaseList2D nodes, first operator node can be retrieved by something like following:

Code: [Select]
CORONA_TONEMAPPING_BRANCH_ID = 1057356
PLUGINID_CORONA_CAMERA_TAG   = 1032177
PLUGINID_CORONA              = 1030480

def GetFirstTonemappingOperator(node):
    filtered = [b["head"] for b in node.GetBranchInfo() if b["id"] == CORONA_TONEMAPPING_BRANCH_ID]
    if filtered:
        return filtered[0].GetFirst()

For camera this would be used as
Code: [Select]
cameraTag = camera.GetTag(PLUGINID_CORONA_CAMERA_TAG)
firstOperator = GetFirstTonemappingOperator(cameraTag)

For render settings it could be used as:
Code: [Select]
vp = doc.GetActiveRenderData().GetFirstVideoPost()
while vp:
    if vp.IsInstanceOf(PLUGINID_CORONA):
        break
    vp = vp.GetNext()
firstOperator = GetFirstTonemappingOperator(vp)

Each operator can then be examined using IDs you can find in plugin folder in res/description/postprocess_operator.h.

For example setting all exposure operators to 4.2 could be done using:
Code: [Select]
operator = firstOperator
while operator:
    if operator[c4d.CORONA_POSTPROCESS_OPERATOR_TYPE_NAME] == "Chaos.SimpleExposureOperator.Data":
        operator[c4d.CORONA_POSTPROCESS_OPERATOR_SIMPLE_EXPOSURE_VALUE] = 4.2
    operator = operator.GetNext()

Now, is a little bit more complicated, but it is simply because tone mapping now does not have any predefined ordering and can be arbitrary modified. For all other parameters in camera tag and render settings the things should be as before, e.g setting ISO can be done as before using
Code: [Select]
cameraTag[c4d.CORONA_CAMERA_ISO] = 300
Unfortunatelly we currently don't have any unified documentation for this, but we will try to add it in the near future as there seems to be quite a need for it. We will also try to introduce some utilities for Python scripting that would simplify things... I'll write in this topic once we have some more information.

Finally, regarding CORONA_LIGHTMTL_EMISSION_COLOR_LEVEL/CORONA_LIGHT_MATERIAL_EMISSION_COLOR_LEVEL, we renamed few such parameters in v8 internally to make it more consistent with other parameters. We will add aliases for these in v8 hotfix.

15
Please check this article covering the risks of using daily builds: Daily Builds FAQ
Use daily builds at your own risk and always make backups of important projects before opening them with a daily build installed.


Changes in Corona 9 for Cinema 4D (Daily Build 2022-04-21) (https://drive.google.com/drive/folders/1xoDTlVaxw6ovZ3-KLhUjdn5DowtEuAic):

  • Added:
    • Added support for Cinema 4D S26
  • Fixed:
    • Fixed problem with Avoid collisions in Chaos Scatter not working with Decals

Note: All these changes will be released as a version 8 hotfix later.

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