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9 Chaos Corona

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Chaos Corona 9

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Realism without the headaches.

Chaos® Corona delivers high-quality, physically-based shading for production rendering. Be an artist, not a technician, and achieve realism with greater ease than other rendering software. Corona is easy-to-use, affordable and the Premium tier includes the Chaos tools Phoenix, Scans and Player.

New in version 9: One license now covers both 3ds Max and Cinema 4D.

Corona also now comes in 2 tiers: Solo and Premium.

Solo is for artists who want to render on a single computer. Premium is ideal for customers who want access to floating licenses so they can move from computer to computer, and also have access to Chaos® companion products such as Phoenix, Player, and Scans.

Easy to use

Usability is Chaos Corona’s most powerful feature. Render setup is as simple as pressing “Render”. Most new users learn Corona in just one day — and fall in love with it in two.

Affordable

We aim to keep Chaos Corona affordable and accessible to as many people as possible, without compromising on its development and features.

Part of an ecosystem

As a Corona user, you are backed by the award-winning Chaos family. Expand your capabilities with Chaos tools guaranteed to integrate smoothly with your favorite render engine.

What’s new in Corona 9

The next level of realism awaits, with animatable procedural clouds and airplane trails, the ability to tile geometry as easily as a texture, neaten up those scatters with Edge Trimming, and much more.

Procedural Clouds

Procedural Clouds let you control and type of cloud cover, and they are easy to animate. They respond to Sun color and position so work at dawn or at noon, and all with minimal effect on render times.

Corona Pattern

Tile real geometry over a surface with the same ease as you’d tile a texture, for the ultimate in realism all while saving memory. Use it to create fabrics, wire fences, jewelry, and much more.

Edge Trimming (Chaos Scatter)

corona edge trimming offcorona edge trimming on

Now you can have control over the edges of your scatters, for keeping those lawns neat and tidy.

Chaos Scans, Player, and Phoenix included in Premium

Included in Premium are three powerful tools from Chaos. Phoenix will let you create realistic simulations of fire, smoke, water and more.

Chaos Scans will give you access to hundreds of realistic materials that are too complex to simulate with regular materials.

While Chaos Player will give you the ability to edit and post-process your image sequences.

Shutter Curve for Motion Blur

Control the amount of blur at the start, middle and end of the motion blur effect, replicating how it looks from a real camera.

Depth of Field for Fisheye Cameras

For artistic purposes (since real world fisheye lenses do not show this effect), you can now add depth of field blurring to scenes rendered from fisheye cameras.

Under the hood improvements

As mentioned when we released Corona 8, we have been working on some changes under the hood to improve the user experience, such as new preservation options for Material Overrides, reduced memory required by Corona Bitmaps, improved material previews in the High Quality viewport, and more.


Chaos Corona 9 Quick Facts

  • Corona Pattern – Tile geometry across a surface as easily as you’d tile a texture.
  • Procedural Clouds – Add detail to your Corona Sky, with animatable procedural clouds and airplane trails. You may never need an HDRI again.
  • Edge Trimming in Chaos Scatter – a much requested feature, implemented in this update to Scatter.
  • Chaos Scans – The ultimate in realism for your materials, these have been cleverly scanned so that each material responds in its own unique way to lighting. Leathers, fabrics, even foils, can now be added to your scene, guaranteed to match the real world in both look and in scale. Included in your Premium subscription.
  • Chaos Player – An easy way to turn your image sequences into a video format. Now you won’t have to use a complex video editor that is overkill for your everyday needs. Included in the Premium subscription.
  • Chaos Phoenix – Corona has supported Phoenix for some years, but only a few users had it added to their toolset due to the significant extra cost. Now the perfect tool for making fire, smoke, water, and more is included in your Premium subscription.
  • Lots of smaller improvements – Depth of Field from the fisheye camera, new Material Override settings to preserve slicers, out-of-core texture rendering to save some memory at render time, and more.

There has also been a lot of work under the hood for code maintenance, laying the groundwork for future features and improvements after the huge update in features added in Corona 8.


Overview

All features are tightly integrated into Autodesk 3ds Max and Maxon Cinema 4D. If you are already familiar with Corona, then check out the ‘what’s new’ link below for a summary of the new things you can achieve with the latest release.

Ease of use

Usability is our most powerful feature. Render setup is really as simple as pressing “Render”. Most new users learn Corona in just one day — and fall in love with it in two.

Rendering

Chaos Corona delivers predictable, reliable, and physically plausible results with no compromises in quality. Realistic lighting and materials, including caustics, are yours right out of the box. The Corona Forum and Gallery section provide great examples of this.

Powerful workflow tools

The output quality and speed are not the only things that make a great renderer. That is why Corona comes with many “little” workflow tweaks that will make your life much easier.

Render-ready content

Time is money, so you need to create your scenes quickly and easily. Corona comes with a substantial collection of premade content – from models and assets to skies and materials – which will help you build your world in record-quick time.

Materials

Our design goal for Corona materials is to make them physically based, yet intuitive, flexible, and easy to set up.

Lights

The whole process of creating lights is designed to give artists complete control over their scene while being fast and intuitive.

Speed & interactivity

A usable renderer must always deliver final results as fast as possible and react to the user’s actions in a split second. And that is what we are always looking for.

Affordability

As a relatively young company, we have the luxury of being able to do things differently right from the start. We have taken a different approach not only in development but also when creating our pricing options.

Flexibility

We understand how important it is to be able to “bend” physical laws to deliver the results your clients expect. So Corona supports numerous reality hacks which allow you to get exactly the effect you desire.

Ecosystem

Your Chaos Corona Premium subscription includes several powerful Chaos tools that will expand what you can tackle in your projects and help with your workflow.

The following three Chaos tools are included in your Corona Premium subscription, though they are also still available to purchase separately too.

Chaos Phoenix (3ds Max only)

Add drama and interest to your scenes with realistic simulations of fire, water, oceans, and more. Chaos Phoenix is an artist-friendly tool for creating all types of dynamic effects.

And it’s not just for VFX. In arch-viz, it’s perfect for creating pools, fountains, and fireplaces. For automotive specialists, it can help you burn some rubber in your next car animation. There are a million ways to use the power of the Phoenix!

Chaos Scans

There are some materials that are impossible to recreate with any number of parameters and maps in a generalized material, as they have a unique way of responding to light. This is where Chaos Scans comes in. Each material in the library is meticulously scanned to capture how it interacts with light so that you can drag-and-drop it into your scene for 100% accuracy in both look and scale.

This comes into its own with materials such as leather, clothing fabrics, car paints, and reflective and holographic materials. With just a click you can add these materials to your scene, confident that you are recreating reality without spending hours trying to build the material for yourself.

Chaos Player

Your frames just finished rendering. Now you want a fast and easy way to review your animation. That’s what Chaos Player is built for. Simply load your rendered sequence and hit play.

In addition to its smooth and fast playback, Chaos Player includes tools for quick compositing, color corrections, and collaboration. It’s perfect for reviews and approvals.

Distributed rendering

Rendering with multiple computers at once is essential for any real production. Corona facilitates this in multiple ways – for example, it has its own distributed rendering system, and it is compatible with the Backburner and Thinkbox’s Deadline render farm management systems.

Proudly CPU based

Chaos Corona does not need any special hardware to run. It uses the CPU and you can run it on any processor from Intel or AMD released in the past decade.

Note: See the Details page for more information on the 3ds Max version and the Cinema 4D Version.

Corona – Which tier is right for you?

Corona Solo

Corona on one computer

  • Fixed license on one computer
  • Includes all Corona integrations
  • Includes support
  • Chaos Cosmos content library

Corona Premium

The complete visualization suite

  • Floating license on any computer
  • Includes all Corona integrations
  • Includes support
  • Chaos Cosmos content library
  • Chaos Phoenix
  • Chaos Player
  • Chaos Scans

Corona Renderer 8 for Cinema 4D Feature List

Last update: April 13, 2022 | Version: Chaos Corona 8 | Plugin: Cinema 4D

Render engine

  • Biased and Unbiased solution
  • Path Tracing: unbiased solution
  • UHD and 4K (experimental) cache: two options for faster biased cached solution for interiors
  • Denoising
    • Reduces the number of passes needed to get a noise-free image, with render time reductions of 50 to 70%
    • Easy to use and fast to render
    • Corona High Quality denoiser, best quality, recommended for final renders
    • NVIDIA AI GPU-based denoising can be used for final renders at the user’s discretion (requires a compatible NVIDIA GPU)
    • Intel AI denoising can be used for final renders. CPU-only, and works with any CPU (not just Intel)
    • Interactive amount adjustment
    • Checkbox to enable/disable the result in the VFB
  • Fast Caustics Solver:
    • Easy to use, and fast to render
    • Includes caustics from reflection, refraction, and dispersion (splitting light into separate colors)
    • Enable or disable for specific light sources
    • Works with LightMix
    • Separate render element available for compositing caustics in post processing for even greater control
    • Works correctly with motion blur
    • Include/Exclude list for control over which objects receive caustics
  • Adaptive Image Sampling
    • Balances out the rendering calculations over the image to focus more processing power on tricky areas
  • High Quality Image filtering, gives a more natural and “less CGI” look to noise, making it less noticeable to the eye
  • Progressive rendering
  • Max Sample Intensity (MSI): automatically removes fireflies – accuracy/render speed tradeoff
  • Proudly CPU based

Interactive rendering

  • 100% the same render engine as for the final frame
  • All final frame rendering features supported, including Interactive LightMix, post-production effects such as bloom & glare, LUTs, etc.
  • NVIDIA AI GPU-based denoising, for denoising during Interactive Rendering (requires a compatible NVIDIA GPU)
  • Pick objects directly in the docked viewport, and use the standard Cinema 4D transform widgets on them
  • Image upscaling factor to allow rendering to a smaller resolution and upscaling (ideal for HighDPI displays)
  • While zooming-in in the IR, rendering is focused on visible area only
  • Subsampling lowers initial resolution at the beginning of rendering, for virtually real-time performance
  • Blue Noise Dithering to give visually pleasing results in the first few passes, for quick assessment of a scene when using Interactive Rendering
  • Results shown in Corona VFB or docked viewport

Chaos Cosmos

  • Instant content for your scenes, including
    • Models
    • Materials
    • HDRI Skies
    • Scatter presets
  • Accessible directly within 3ds Max or Cinema 4D
  • Content is categorized and easily searchable
  • Mark your favorites to find them quickly in other projects
  • Drag and drop anything you have downloaded into your 3D application
  • Content loads as Corona Proxies, with fully editable Corona Materials
  • On-demand downloads, only download what you need, when you need it
  • New content added between Corona releases

Chaos Scatter

  • Ideal for adding grass, trees, rocks, traffic or parked cars, crowds or pedestrians, etc. to your scenes
  • Can be used to scatter Decals
  • Control the distribution of hundreds, thousands, or millions of objects
  • Scatter on geometry, in a volume, or along splines
  • Distribute randomly, or in patterns
  • Limit distribution based on the steepness of a slope, e.g. prevent trees growing on cliffs etc.
  • Use spline include/excludes with controllable near and far parameters, e.g. to carve a path through trees, or limit flowers to a flowerbed
  • Associated texture map that colors scattered objects based on the colors of the object they are scattered on – ideal for creating patterned rugs, variations in color on a lawn, etc.
  • Camera Clipping to limit scattering to within the camera field of view
  • Extend view parameter allows expanding the camera view culling to allow correct shadows or reflections from instances outside of the field of view
  • Random translation/rotation/scaling of instances, with optional discrete stepped values
  • Optionally avoids objects intersections, with tweakable inter–object spacing
  • Supports aligning instances to local normal
  • Control density and scale by maps
  • Different modes for using maps to control scatter scale, including RGB mode to define x, y and z scaling independently in one map
  • Several display modes and limits, to keep viewports responsive
  • Included Scatter Lister plugin to easily access and control all scatters in a scene

Materials

  • Corona Decal
    • Easily add surface details or imperfections, which can include displacement
    • Control scaling, positioning, and rotation using a 3D object in the viewport – no need to fiddle with complex UV mapping and placement
    • Stack Decals on top of each other, intuitively controlled by positioning in the 3D space
    • Decals apply to all objects they overlap, with an include/exclude list for fine control
    • Can take a mask from the input material, or a dedicated Shader
    • Option to replace base displacement and base bump
    • “Fit to Bitmap” and “Fit to assigned mtl” to get correct aspect ratio for the Decal object
    • “Max angle limit” lets you avoid the decal being applied to backfaces, etc.
    • “Max angle blur” softens the transition from the “Max angle limit” control
    • Option to display the material as a preview in the 3D viewport
  • Corona Slicer Material
    • Used to cut away sections of geometry at render time
    • Cut with any shape that has the Slicer material applied
    • Cuts through all objects overlapped by the slicer, customizable via exclude/include lists
    • Option to cap resulting exposed surfaces
    • Caps can have their own material, or take the material from the object being sliced
    • Can preserve interior lighting of a house with cutaway by combining with the RaySwitch Material
  • Corona Physical Material
    • Default material since Corona 7
    • Base Layer for diffuse, reflection, bump, and translucency controls
    • Base layer uses Oren-Nayar shading model
    • Clearcoat Layer for adding a layer of varnish, lacquer, etc., featuring separate bump from the Base Layer
    • Sheen for creating realistic fabrics
    • Choice of Roughness or Glossiness workflow, both per-material and as scene default
    • Choice of IOR or Disney Specular workflow, both per-material and as scene default
    • Metalness workflow, where Metalness can be mapped
    • Metals can be controlled by simple Edge Color, or by Complex IOR
    • UI interactively enables or disables parameters based on whether a material is Metal or Non-Metal
    • 35 presets built-in to the material, as starting points, or to ‘reverse engineer’ to learn in creating your own materials
    • Refraction, including dispersion, caustics, and thin absorption (for Thin Mode)
    • Anisotropy correctly affects both Refractions and Reflection (both correctly affect caustics)
    • Thin mode for glass correctly blurs reflections and refractions
    • Opacity
    • Adaptive displacement with low memory requirements
    • Vector displacement
    • SSS mode for wax, marble, and other materials that do not use Thin Mode or full Refraction
    • Volumetric scattering and absorption mode for fog, mist, and for colored glass, liquids and other materials that use Refraction without Thin Mode
    • Self-illumination
    • Adjustable PBR reflection tail
  • Corona Legacy Material
    • Uses Lambertian shading model
    • Legacy material, to preserve identical results from scenes created in earlier versions of Chaos Corona
  • Corona Select Material
    • Store multiple materials for one object, and select between them via radio buttons
    • Current Index parameter can be keyframed
  • Corona Skin Material
    • Dedicated material for skin
    • Three independent Subsurface Scattering layers
    • Two independent Reflection layers
  • Corona Hair Material
    • Dedicated material for hair and fur
    • Colored and Colorless reflection layers
    • Color controls via melanin amounts, or directly
    • Adjustable random Glints
    • Usable alone or in combination with Cinema 4D Hair Material for Cinema 4D’s native control over the hair growth properties
  • Corona Layered Material
    • Alternative to Cinema 4D Texture Tags layering
    • Combines multiple materials
    • Individual layers can be toggled on/off
    • Displacement from the individual materials can be combined via blend or additive modes, or taken only from the base layer
  • Corona Light Material
    • Identical performance to Corona Light
    • Various non-physical settings
    • Textured emission (useful for backplates)
  • Corona Ray Switcher Material
    • Uses different material for different ray types: direct, GI, reflections, refractions
  • Corona Shadow Catcher Material
    • Use custom backplate texture or show the environment map behind
    • Supports glossy surfaces
    • Bump mapping
    • Lights work additively (illuminators) or subtractively
  • Corona Volume Material
    • Simplified material for volumetric scattering and absorption
    • “Inside Mode” allows for true 3D volumetric materials
  • Cinema 4D Materials
    • Cinema 4D Material
    • Cinema 4D PBR Material

Material Library

  • Over 520 ready-to-use high quality materials
  • Drag-and-drop from the Library to an object in the Object Manager, viewport, Corona Node Material Editor, and Material Manager
  • Triplanar mapping used where possible, to reduce tiling and give expected scaling
  • Materials organized by category
  • Set favorites, with display favorites only option
  • Sort by name, favorites, or most used
  • Select all objects in the scene that use a particular material
  • Resizable material previews
  • Open standalone large preview windows for materials

Corona Node Material Editor

  • Global/World view of shaders and materials and how they are connected
  • Use views to organize materials and shaders by type, category, etc.
  • Handles all Corona and most Cinema 4D shaders and materials; also works with Substance shaders
  • Connect one shader to any number of channels, or materials
  • Works with native Cinema 4D Layer shader
  • Switch at any time between the Corona Node Material Editor, or the native Cinema 4D editor
  • Supports drag and drop from the Cinema 4D Asset Browser
  • Select by selection box
  • CTRL + Drag to copy selected nodes
  • Option to turn Corona Shared Shaders into regular shaders on saving the scene
  • Independent of Cinema 4D version – works in all versions of Cinema 4D supported by Chaos Corona (R14-R25)

Shaders

  • Corona Curvature
    • Add wear-and-tear or dirt to an object, based on the curves of the surface
    • Identify concave areas, convex areas, or both at once
    • Ray directionality to control how “focused” the effect is
    • Distance to control how far the effect extends
    • Color spread to control smoothness of blending between colors
  • Corona Distance
    • Gradient based on distance to other objects, including Cameras
    • Supports textures
    • List of objects to calculate distance from
    • Can be used with Cinema 4D Effectors to control placement of scattered objects
    • Wide range of other creative uses, e.g. ripples on water around objects, controlling light intensity and color, etc.
    • Supports splines
    • Works as an input to bump mapping, displacement, etc.
  • Corona Mixture
    • Advanced mix shader
    • Texture or color inputs, different blending modes
    • Works as an input to bump mapping
  • Corona Multi Shader
    • Randomly assigns colors/shaders to instances, mesh elements, or decals, which can be enabled separately or via checkboxes which allow multiple randomization modes at once
    • Frequency spinners
    • Hue and Gamma randomization
    • Features advanced blending modes
    • Global blur multiplier to affect all multi shader elements
    • Supports up to 100 inputs
    • Can be used with just one input, applying gamma and hue randomization
  • Corona UVW Randomizer
    • Apply random offset / rotation / scale to shaders by instance, material id, mesh element, etc., which can be enabled separately or via checkboxes which allow multiple randomization modes at once
    • Options to allow randomization of seamless textures, e.g. to avoid visibly obvious tiling
  • Corona Select Shader
    • Store multiple shaders, and select between them via radio buttons
    • Current Index parameter can be keyframed
  • CoronaSky
    • Duplicates the functionality of the Corona Sky object (see the Lights section), except for the Volume Effect.
  • Corona AO
    • Ambient occlusion shader
    • Supports textures
    • Includes/Excludes
    • Additional controls: spread, directionality, inverted mode, etc.
  • Cinema 4D Normal Direction
    • This supported native Cinema 4D shader fully replaces the CoronaFrontBack texmap from the 3ds Max version
  • Corona Color Correct
    • Adjust brightness, saturation etc. of a texture map (and still have it affected by VFB post-processing)
    • Unique tone mapping capabilities (not present on other output nodes), including LUTs, gamma, green-magenta tint, etc.
    • Cinema 4D Filter Shader is supported and can be used as an equivalent for other tone mapping capabilities such as gamma, curves, etc.
  • Corona Tonemap Control
    • Specify whether a texture map should be affected by VFB Exposure, Tone Mapping, etc.
  • Corona Color Mix
    • Adds the Cinema 4D native color mixing settings to the shaders which normally don’t have them
  • Corona Ray Switch
    • Same as RaySwitch material, but on shader instead of material level
  • Cinema 4D Color
    • This supported native Cinema 4D shader fully replaces the 3ds Max version’s CoronaColor texmap
  • Corona Wire
    • Wire shader
    • Allows to set edge/vertex size in world or screen coordinates
    • Includes Falloff option
    • Can be used as an input to bump mapping
  • Corona Bitmap
    • UV Tiling, Crop / Placement, Channel outputs
    • Can load .tx files
  • Corona RoundEdges
    • Rounded corners shader
    • Works as an input to bump mapping and other material slots
  • Cinema 4D Variation
    • This supported native Cinema 4D shader fully replaces the CoronaMultiMap known from the 3ds Max version
  • Corona Triplanar
    • Apply textures without explicit UV mapping, with no stretching or seams thanks to the in-built blending
  • Corona Normal
    • Automatic detection of incorrect input gamma

Lights

  • Corona Sky Object
    • New PRG Clear Sky model based on atmospheric data
    • “Aerial Perspective” via Volume Effect
    • Altitude sets the height of the observer
    • Turbidity controls whether sky is clear or overcast
    • Artistic control over Horizon Blur
    • Can be linked to a Corona Sun, allowing different times of day
    • Supports dawn/twilight with the Corona Sun as low as -2.85 degrees (approximately 5.4 sun diameters) below the horizon
    • Allows changing of the ground color
    • Also offers Hošek & Wilkie, Preetham et al., and Rawa-fake sky models
    • Alternatively can be set to use an HDRI, with Spherical and Dome mapping modes for use as an Environment
    • Multiple skies are supported, and each one can be paired with specific Corona Suns, for use in LightMix
    • In-built controls for Visible directly, in reflections, etc.
  • Corona Sun
    • Standalone object that can be combined with the Corona Sky Object for complete realistic outdoor lighting
    • Multiple Suns are supported, and each one can be paired with specific Corona Skies, for use in LightMix
    • Allows non-physical properties (changing size, color, disabling visibility in reflections, …)
  • Corona Light
    • Shapes: sphere, rectangle, disk, cylinder
    • IES profiles
    • Directionality
    • Physical units
    • Color (RGB input, Kelvin temperature, texmap)
    • Non-physical settings: disabling shadows, includes/excludes, disabling visibility in reflections, preventing black appearance for lights with directionality
  • Corona Light Material
    • Turns any object into a light
    • No render time differences compared to using a CoronaLight
  • Cinema 4D native lights
  • Corona Sky Tag (for compatibility only)
    • Tag that can be applied onto Cinema 4D Sky Object for procedural sky light emission
    • For compatibility with old scenes only; the Corona Sky Object should be used in Chaos Corona 5 and newer

Interactive Lightmix

  • Adjust color and intensity of lights, during and after rendering
  • Single-click set up (by instances, groups or individual lights, with memory requirements reported)
  • Supports multiple suns and multiple environments for different times of day from one render (see Corona Sky and Corona Sun in the Lights section)
  • Manual set up if required
  • Controlled from the VFB
  • Results can be pushed to the scene
  • Can be used for anything from subtle adjustments, to turning day into night, without re-rendering
  • Each light select pass can be denoised independently
  • Can select the light objects in a scene for a particular LightSelect layer, directly from the LightMix tab in the VFB
  • LightMix result can be saved to a CXR file and then adjusted in the Corona Image Editor, or saved for compositing in other post-processing software

Environment

  • Use a Corona Sky Object, or drag and drop a Corona Light Material with any shader or an environment map into the Scene environment slot in the Scene environment tab in Render Settings
  • Adaptive Environment Sampler ensures fast and accurate sampling of HDRI and Sky environments, without the need for portals
  • Importance sampling speeds up rendering
  • Direct/Reflect/Refract overrides in Render Settings
  • Global material for volumetric effects such as fog (also see Volume Effect under Corona Sky for an “aerial perspective” instead)

Corona Virtual Frame Buffer

  • An optional, feature-rich replacement for the Cinema 4D Picture Viewer
  • Integrated tone mapping controls
    • Fully customizable stack – add, delete, and move all the parameters to create precisely the effect you want
    • Presets to provide a starting point
    • Tone mapping stacks can be saved and loaded, independent of other VFB controls
    • Each Corona Camera can have its own unique tone mapping stack and settings, which are displayed and controlled in the VFB without having to edit the Camera settings
    • Included parameters:
      • Basic
        • Contrast
        • Green-Magenta Tint
        • Photographic Exposure
        • Saturation
        • Simple Exposure
        • Tint
        • Vignette
        • White Balance
      • Curve Control
        • Advanced Filmic Mapping
        • Curves
        • Filmic Mapping
        • Tone Curve
      • Highlight Control
        • Reinhard Highlight Compression
      • Final Look
        • ACES Output Transform
        • LUT
  • Integrated Interactive LightMix, allows changing color and intensity of lights without re-rendering
  • Integrated lens effects offering a high degree of realism and creativity for bloom & glare effects affected by lens scratches, dirt, etc.
  • Sharpening/blurring
  • Save and load post-processing and LightMix configurations, and exchange those to and from the Corona Image Editor
  • Pick objects directly in the VFB
  • Set DOF focus point directly in the VFB (for Corona Cameras)
  • VFB History and Comparison, with ability to toggle between using the current post-processing, or the post-processing at the time of saving the image to history
  • Statistics: render time, remaining time, performance, polycount, tooltip explanations, etc.
  • Displaying/saving Multi-Pass layers
  • Pixel color probe on right mouse button
  • Controls: start render/stop render, resume last render, resume rendering from file, save/clone/copy image, etc.
  • Optional stamp with scene info at the bottom of rendered image
  • Customizable information in the title bar
  • Interactive and Multiple Render Regions
  • Fuzzy render regions
  • Zoom buttons for use when accessing a machine remotely
  • Can be set to use the same color space as the native Cinema 4D Picture Viewer

Corona Image Editor

  • Runs outside of any 3D software
  • All the familiar controls from the Corona VFB
  • Adjust lighting in the rendered image using the full range of LightMix controls (on Corona EXRs)
  • Apply Denoising (on Corona EXRs)
  • Apply all the Corona post-processing options (on any EXR)
  • Save and load LightMix and post-processing configurations, and exchange those to and from the Corona VFB
  • Bloom & Glare virtual element which can be viewed or saved separately
  • Save up to eleven formats (EXR, PNG, JPG, BMP …)

Post-processing effects

  • Controlled from render settings, Corona Camera, or VFB
  • All settings are adjustable during/after rendering
  • Image updated in real time
  • Bloom & Glare
    • Both controlled independently
    • Threshold
    • Color intensity & shift to adjust colors
    • Glare ray count, blurriness and rotation
    • Lens Effects for scratches, dirt, etc.

Corona Camera

  • Corona Camera is a tag allowing to use all the standard Cinema 4D camera controls plus all Corona controls such as exposure, DOF, LUTs etc.
  • Focus distance can be set using the native Cinema 4D Focus Object functionality
  • Tone mapping parameters respond immediately in Interactive Rendering without restarts
  • Render to fisheye, orthographic, perspective, spherical, cylindrical or cubemap projections

Camera effects

  • High quality (raytraced) depth of field and motion blur effects
  • Photographic controls (optional): shutter speed + ISO + f-stop
  • Fisheye lens effects
  • Bokeh shape
    • Circular
    • N-gonal (bladed aperture)
    • Custom image
    • Center Bias
    • Vignetting
    • Anisotropy
  • Multi-segment (curved) motion blur
  • Virtual Reality Camera

Exposure and color mapping

  • Controlled from render settings, Corona Camera Tag, VFB, or Picture Viewer
  • All settings are adjustable during/after rendering
  • Image updated in real time
  • Two exposure control modes
    • Photographic exposure: shutter speed + ISO + f-stop
    • Simple exposure: single EV value
  • See the Corona Virtual Frame Buffer section for a full list of controls

Geometry

  • Corona Proxy
    • Cross-platform proxy format: .cgeo
    • Faster save/load/display of large scenes
    • Compressed format to save disk space
    • Supports animated meshes
    • Duplicate to mesh functionality, which lets you create a separate, regular polygonal model that you can edit using the C4D modeling tools
    • Supports loading of vrmesh proxies (mesh data only)
  • Corona Volume Grid
    • Allows loading and rendering of OpenVDB files
    • Useful for importing simulations such as clouds, smoke, fire, liquids, etc.

Distributed rendering

  • Support for Cinema 4D Team Render of both animations and single frame
  • Pass, Time and Noise Level limits can be used

Multi-pass

  • Arbitrary number of passes
  • Optional anti-aliasing of passes
  • Optional Denoising of passes (where relevant)
  • Beauty pass, with independent Denoise amount
  • Alpha pass
  • Beauty composition passes
    • Direct, indirect, reflect, refract, translucency, emission, caustics, volumetrics
  • Geometry passes
    • Geometry normals, shading normals, primitive coordinates, UVW coordinates, world position, z-depth
  • Masking passes
    • Wire color
    • Primitive/Material/Object ID
    • Cryptomatte
    • Option to propagate masks through reflection, refraction, both, none, or never
    • Mask propagation can now be enabled or disabled for Mask, ID, ZDepth, WireColor and Texmap multi-passes
    • Custom mask
      • Object selection
      • Material ID
      • Object buffer ID
  • Shading passes
    • Albedo, individual direct/indirect BRDF components, raw components, source colors, shadows, bloom & glare
  • Informational passes
    • RenderStamp, SamplingFocus
  • Arbitrary texmap elements
    • Corona AO shader
    • Corona Wire shader

Supported Cinema 4D features

  • Most native and 3rd party shaders
    • Evaluated directly from the Corona rendering pipeline
    • Including the Cinema 4D shaders Beat, Bitmap, Brick, Checkerboard, Cloud, Color, Color(MoGraph), Colorizer, Cyclone, Display Color, Distorter, Earth, Falloff, Filter, Fire, Flame, Formula, Fresnel, Fusion, Galaxy, Gradient, Layer, Lens Distortion, Marble, Metal, Multi, Noise, Normal Direction, Pavement, Pixel, Planet, Polygon Hair, Posterizer, Projector, Proximal, Ripple, Rust, Simple Noise, Simple Turbolence, Spline, Starfield, Stars, Substance Shader, Sunburst, Thin Film, Tiles, Variation, Venus, Vertex Map, Water, Weathering, Wood
  • Cinema 4D native material layering
  • Cinema 4D native lights
    • Including turning off shadows or non-physical falloff properties
  • Cinema 4D render options
    • Render region, viewport render region, interactive render region, render view
  • Cinema 4D Background Object support
  • Native Team Render support
  • Render takes
  • XREF object in non-generator mode

VR

  • Corona Camera can render to spherical or cubemap format, supporting a wide range of VR apps
  • Easy setup, defaults handle 99% of cases
  • Conventional stereo rendering (non-360)
  • Bloom & Glare supported for spherical VR images

MISC

  • 2.5 D Displacement
    This method of calculating displacement saves significant memory and parsing times
  • Tooltips added for Corona Materials
  • Material and light conversion
    Cinema 4D lights and basic materials are rendered out-of-the-box using implicit conversion inside Corona without user interaction
    Basic implicit support for V-Ray Advanced, Standard, Displacement and 2-Sided materials
    Basic implicit support for V-Ray Physical Sun + Sky light and Area lights
    Other V-Ray lights which use Cinema 4D objects as their base are rendered using the Cinema 4D light’s properties
    Explicit user-initiated conversion, which converts the supported Cinema 4D materials, V-Ray lights and V-Ray materials to their Corona counterparts to allow further tweaking and changes in Corona
  • Advanced “Render Selected”
    Render mask by an include list, object ID, or viewport selection
  • Improved Color Picker
    Used for Corona-specific color editing, e.g. tone mapping parameters in the VFB
    Choice between sRGB modes for ease of use with Photoshop and similar, or Linear modes
    Perceptually uniform color gradients in both modes
    Color selection by RGB, HSV, CMYK, or Temperature
    Choice between 0-255, 0-1, or 0-100% for values
    Adjustable averaging of neighboring pixels
    Inverse color picker allows setting of white balance in combination with the Color Tint parameter in the VFB
  • Improved material editor scene
    More representative previews
  • Hair support
    Cinema 4D native Hair Object
    Cinema 4D native Hair Material in the Cinema 4D Hair Tag
    Corona Hair Material can be used in addition to Cinema 4D Hair Material for realistic hair appearance
  • Stacked materials work as expected with displacement
  • Override material option (with excludes/includes for objects and/or materials; options to preserve displacement, light materials, glass materials, portals, and unsupported materials; also works with complex generators, e.g. Extrude)
  • Save and resume
    Ability to save VFB and resume rendering later (even on a different computer)
  • Render only masks
    Computes render masks in seconds without doing shading
  • Autosave
    Optionally saving the VFB every few minutes and after rendering. Rendering can be resumed from these backups
  • Bundled LUTs
    Over 70 LUTs included with the install
  • Bundled IES profiles
    Sample IES files included
  • UI supports HiDPI monitors

Basic Facts

  • Corona Renderer is entirely CPU-based (with optional GPU denoising which requires a compatible NVIDIA GPU)
  • Offers unbiased and biased rendering
  • One license works with both 3ds Max and Cinema 4D

Hardware Requirements

  • Corona requires a CPU that supports the SSE 4.1 instruction set.
    Only very old CPUs don’t support it: Here is a list of compatible CPUs.
  • To use our optional Fast Preview Denoiser (NVIDIA OptiX), you need an NVIDIA GPU with Maxwell or newer architecture and the newest GPU driver. Not all mobile GPUs are supported.
    Note: this denoiser type is optional, and Corona works fine even if it’s not installed (for example if you are using an AMD or integrated GPU). We also offer a High Quality denoiser, which utilizes purely the CPU, and this denoiser can be used on any computer which can run Corona.
  • There are no further specific hardware requirements.

Software Requirements

3dsMax version

  • Autodesk 3ds Max x64 version 2016 -2023
  • 64-bit Microsoft Windows (8, 8.1, 10, 11)
  • Installation requires administrator privileges
  • Distributed rendering also requires Autodesk Backburner, available for free from Autodesk

Cinema 4D version

  • 64-bit MAXON Cinema 4D R17-2023
  • 64-bit Microsoft Windows (8, 8.1, 10, 11) or macOS (10.14 or newer)
  • Installation requires administrator privileges

GPU Denoiser

  • To ensure smooth operation and best performance of our Fast Preview Denoiser (NVIDIA OptiX), please make sure you are using the newest driver available for your graphics card. The drivers can be downloaded from nvidia.com.

What hardware do you recommend?

Corona is a CPU-only renderer, so the more powerful CPU you use, the faster renders you get. You can compare the performance of various CPU models here: https://corona-renderer.com/benchmark/results

Another well-known website with various CPU benchmarks is https://www.cpubenchmark.net/

The above benchmark results are proportional to the rendering performance in Corona, so you can define your budget and pick a CPU with the highest score within that budget.

 

You will also need a decent graphics card, however, that is only needed for good viewport performance in your host software (3ds Max or C4D). To use the Nvidia Optix denoiser, which is integrated into Corona (but optional), you will need an Nvidia graphics card.

 

You will also need as much RAM as possible. Nowadays, 32 GB is the bare minimum and 64 is the standard. If you can get even more, you will be able to render even more complex scenes without running into any issues.

 

We do not really have any recommended hardware manufacturers or partners. You are however welcome to post on our forum, where our users can suggest you some specific hardware manufacturers and models: https://forum.corona-renderer.com/index.php?board=32.0

Cornoa 9

Corona 8, Hot Fix 1

Released June 14, 2022 for both 3ds Max and Cinema 4D.

Works with 3ds Max 2014 – 2023
Works with Cinema 4D R14 – S26

Chaos Corona 8 for Cinema 4D (Hotfix 1)
This release brings compatibility with Cinema 4D R26/S26, and the following bug fixes:

Scatter

  • Fixed problem with Avoid collisions in Chaos Scatter not working with Decals

macOS

  • Fixed import of some Cosmos materials on macOS
  • Fixed problem with missing close button in About dialog in S22 on macOS
  • 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)

General Bugfixes

  • Fixed errors reported in command line version of Cinema 4D when loading Corona
  • 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
  • Cosmos materials are now imported with correct scale when using triplanar mapping
  • Fixed problems with importing Cosmos objects when path to assets download directory contains localized characters
  • Fixed normal map evaluation on Corona Proxy
  • Fixed flipped “Offset V” when using Corona bitmap with UVW mapping on Corona decal
  • Partially fixed problem where switching from viewport camera to Corona camera could reset camera tone mapping pipeline

Chaos Corona 8 for 3ds Max (Hotfix 1)
This release contains the following bug fixes:

Scatter

  • Fixed issue where using Unpack option of the installer from network drive did not unpack Scatter

Tone mapping

  • Fixed UI delay issue when using tone mapping in Camera with operator-animated keys
  • Fixed issue where right-clicking at the numerical value of spinbox led to reset of the value
  • Fixed issue where resetting opacity of LUT could reset selected LUT file
  • Fixed issues (Non-Standard Format error) when loading different types of LUTs
  • Tone mapping pipeline is now created in every scene, without need to interact with it first, allowing users to access it from MAXScript

Cosmos

  • Updated Cosmos service shipped with Corona installer

General/Bugfixes

  • Fixed issues when using ColorPicker with linear percent value types
  • Fixed crash when changing 3ds max 2023 theme
  • Fixed issue where switching the renderers can crash after loading saved custom defaults
  • Fixed issue where user can’t import models from Cosmos when download folder contains non-ascii characters
  • Fixed tyFlow crash when the input mesh is empty
  • Fixed color temperature gamma issues in Color Picker
  • Fixed issue where clicking on temperature or albedo in Color Picker without changing their values would change the color
  • Fix of issue with Color picker, when albedo and color temperature were changing even though they did not change
  • Color Picker, fixed changing of values when clicking on spinbox value boxes
  • Color Picker, fixed changing of color palette position when clicking into spinbox value boxes
  • Fixed Corona objects (Light) being broken in some specific scenes where 3dsmax does not provide version information for an unknown reason
  • Clicking “None” in IES rollout of CoronaLight now correctly opens the corona IES folder
  • Fixed crash when expanding track view of camera with animated tone mappping override
  • Fixed, Distance Map doesn’t update when rendering a sequence

Other

  • Added support for Phoenix 5

Download now: https://corona-renderer.com/download


What’s new in Chaos Corona 8?