Rendering is grainy

Not sure if related – my i9 MBP is blazing through Raytrace (thanks @nathanletwory!), but image remains very grainy even with high sample count. The renders were much sharper with the Jul 11 version of the WIP, and problem only showed up after updating to latest. Issue doesn’t seem file / material-specific (I tried on multiple).

Screenshot of raytrace mode with at 1000 samples + systeminfo below.

Rhino 8 SR0 2023-7-12 (Rhino WIP, 8.0.23193.06306, Git hash:master @ 420e167b0ed73bfe9d26d99bbdc0b142a6f1d3e1)
License type: Commercial, build 2023-07-12
License details: Cloud Zoo
Expires on: 2023-08-26

Apple macOS Version 13.4.1 (Build 22F82) (Physical RAM: 32Gb)
Mac Model Identifier: MacBookPro16,1
Language: en-US (MacOS default)

AMD Radeon Pro 5500M OpenGL Engine (OpenGL ver:4.1 ATI-4.12.7)

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: ATI Technologies Inc.
Render version: 4.1
Shading Language: 4.10
Maximum Texture size: 16384 x 16384
Z-Buffer depth: n/a
Maximum Viewport size: 16384 x 16384
Total Video Memory: 8176 MB
Graphics: AMD Radeon Pro 5500M
Displays: Color LCD (264dpi 2x)

Metal GPU Family Apple 0
Metal GPU Family Common 3
Metal GPU Family Mac 2
Graphics processors
Intel UHD Graphics 630 (1536 MB)
AMD Radeon Pro 5500M (8 GB)
Color LCD (1792 x 1120 @ 59.00Hz)

USB devices
Apple: composite_device
Apple Inc.: Touch Bar Backlight
Apple Inc.: Touch Bar Display
Apple Inc.: Apple Internal Keyboard / Trackpad
Apple: Headset
Apple Inc.: Ambient Light Sensor
Apple Inc.: FaceTime HD Camera (Built-in)
Apple Inc.: Apple T2 Controller

Bluetooth devices
None

Third party kernel extensions
None

Third party plugins
/usr/lib/swift/libswiftCore.dylib
/usr/lib/swift/libswiftCoreFoundation.dylib
/usr/lib/swift/libswiftDarwin.dylib
/usr/lib/swift/libswiftDispatch.dylib
/usr/lib/swift/libswiftIOKit.dylib
/usr/lib/swift/libswiftObjectiveC.dylib
/usr/lib/swift/libswiftXPC.dylib
/usr/lib/swift/libswift_Concurrency.dylib
/usr/lib/swift/libswift_StringProcessing.dylib
/usr/lib/swift/libswiftos.dylib
/usr/lib/swift/libswift_RegexParser.dylib
/usr/lib/swift/libswiftMetal.dylib
/usr/lib/swift/libswiftsimd.dylib
/usr/lib/usd/libIex.dylib
/usr/lib/usd/libHalf.dylib
/usr/lib/usd/libAlembic.dylib
/usr/lib/usd/libusd_ms.dylib
/usr/lib/usd/libosdCPU.dylib
/usr/lib/usd/libImath.dylib
/usr/lib/usd/libIlmThread.dylib
/usr/lib/usd/libIexMath.dylib
/usr/lib/usd/libtbb.dylib
/usr/lib/usd/libMaterialXCore.dylib
/usr/lib/usd/libMaterialXFormat.dylib
/usr/lib/swift/libswiftAVFoundation.dylib
/usr/lib/swift/libswiftCoreAudio.dylib
/usr/lib/swift/libswiftCoreLocation.dylib
/usr/lib/swift/libswiftCoreMIDI.dylib
/usr/lib/swift/libswiftCoreMedia.dylib
/usr/lib/swift/libswiftQuartzCore.dylib
/usr/lib/swift/libswiftUniformTypeIdentifiers.dylib
/usr/lib/swift/libswiftNetwork.dylib
/usr/lib/swift/libswiftCryptoTokenKit.dylib
/usr/lib/swift/libswiftCoreGraphics.dylib
/usr/lib/swift/libswiftOSLog.dylib
/usr/lib/swift/libswiftAccelerate.dylib
/usr/lib/swift/libswiftAppKit.dylib
/usr/lib/swift/libswiftCoreImage.dylib
/usr/lib/swift/libswiftCompression.dylib
/usr/lib/swift/libswiftFileProvider.dylib
/usr/lib/swift/libswiftIntents.dylib
/usr/lib/swift/libswiftPrivate_BiomePubSub.dylib
/usr/lib/swift/libswiftPrivate_BiomeStreams.dylib
/usr/lib/swift/libswiftExtensionFoundation.dylib
/usr/lib/swift/libswiftCoreML.dylib
/usr/lib/swift/libswiftVision.dylib
/usr/lib/swift/libswiftDemangle.dylib
/usr/lib/swift/libswiftSystem.dylib
/usr/lib/swift/libswiftExtensionKit.dylib
/usr/lib/swift/libswiftRegexBuilder.dylib
/usr/lib/swift/libswiftWebKit.dylib
/usr/lib/swift/libswiftGLKit.dylib
/usr/lib/swift/libswiftMapKit.dylib
/usr/lib/swift/libswiftModelIO.dylib
/usr/lib/swift/libswiftSceneKit.dylib
/Users/jlau/Library/Application Support/McNeel/Rhinoceros/packages/8.0/IntelDenoiser/0.6.7/libtbb.12.dylib
/Users/jlau/Library/Application Support/McNeel/Rhinoceros/packages/8.0/IntelDenoiser/0.6.7/libOpenImageDenoise.1.4.3.dylib
/usr/lib/log/liblog_network.dylib

Rhino plugins that do not ship with Rhino
/Users/jlau/Library/Application Support/McNeel/Rhinoceros/packages/8.0/AMDDenoiser/0.5.3/AMDDenoiser.Mac.rhp “AMDDenoiser.Mac” 1.0.0.0
/Users/jlau/Library/Application Support/McNeel/Rhinoceros/packages/8.0/IntelDenoiser/0.6.7/IntelDenoiser.Mac.rhp “IntelDenoiser.Mac” 1.0.0.0

Rhino plugins that ship with Rhino
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoCycles.rhp “RhinoCycles” 8.0.23193.6306
/Applications/RhinoWIP.app/Contents/PlugIns/SectionTools.rhp “SectionTools” 8.0.23193.1002
/Applications/RhinoWIP.app/Contents/PlugIns/NamedSnapshots.rhp “Snapshots” 8.0.23193.1002
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoRoslyn.rhp “RhinoRoslyn” 8.0.23193.6306
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/GrasshopperPlugin.rhp “Grasshopper” 8.0.23193.6306
/Applications/RhinoWIP.app/Contents/PlugIns/PanelingTools.rhp “PanelingTools” 8.0.23193.1002
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/Commands.rhp “Commands” 8.0.23193.6306
/Applications/RhinoWIP.app/Contents/Frameworks/RhMaterialEditor.framework “Renderer Development Kit” 8.0.23193.1002
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoCPython.rhp “RhinoCPython” 8.0.23193.6306
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RDK_EtoUI.rhp “RDK_EtoUI” 8.0.23193.6306
/Applications/RhinoWIP.app/Contents/PlugIns/Displacement.rhp “Displacement” 8.0.23193.1002
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoRenderCycles.rhp “Rhino Render” 8.0.23193.6306
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/MeshCommands.rhp “MeshCommands” 8.0.23193.6306
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoDLR_Python.rhp “IronPython” 8.0.23193.6306
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoCodePlugin.rhp “RhinoCodePlugin” 8.0.23193.6306

Opps sorry never mind – just saw my viewport resolution & responsiveness settings were way down!

1 Like

Would be interesting to see the final result after you change the settings i am a sucker for indirect lighting which always take a while to render