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Expand All Collapse All
  • Introduction to 3DCoat
  • Getting started
    • System requirements
    • Activating 3DCoat
    • Startup error
      • Startup error Mac
    • Upgrading permanent license
    • Linux Setup
      • Linux initial setup per-user installation
      • Linux initial setup for system
      • Tablet setup
      • To GTK3 from GTK2
    • Folders Structure
      • Custom documents folder
    • Different Forms of “Resolution”
    • Import and Export
    • Applinks in 3DCoat
      • Blender 4.1 applink
        • Blender with the Applink in Linux
      • Blender 4.2/3 applink
      • Max Applink
      • Houdini applink
      • Lightwave uplink
  • Navigation
    • Opening Dialog (Quick Start Menu)
    • Navigation Panel
    • Camera and Navigation
      • Customize Navigation as Blender
    • Viewport Navigation Gizmo
    • Left tool panel
    •  Activity Bar
    • Navigation using 3DConnexion devices
      • How to compile Spacenavd on non Ubuntu distro
    • Stylus doesn’t work in sculpting
    • Hotkeys
  • Interface
    • File
    • Edit
      • Calculate Curvature
      • Calculate Occlusion
      • Light Baking Tool
      • Preferences
    • View
    • Symmetry
    • Textures
    • Calculate
    • Layers
    • Freeze
    • Hide
    • Bake
    • Curves
      • Curves editor
      • Fill with mesh layer
      • Scale of imported curves
    • Windows
      • Tabbed and Popup Panels
      • Controls
    • Scripts
    • Addons
    • Capture
    • Help
    • Room Customization
    • Modify or Create new Room
  • Brush Components
    • Brushes general use
      • Create alpha brushes and decals
      • Making alpha from current sculpt
      • Create a Brush from a 3D Object
      • Create brushes based on Curves
      • Load photoshop .abr brushes
    • Strokes
      • Curves Popup Menu
    • Brush Options panel
    • Brush Top Bar
    • Conditions Limiter
    • Strips Panel
    • Stencils Panel
    • Smart Materials
      • Add new images or materials
      • Attach a Smart material to a layer
      • Import Quixel Material
    • Presets for Brush alphas
  • Workspaces Rooms
    • Paint
      • Texture Painting & Modes
        • Per Pixel Painting
        • Displacement Painting (Micro-Vertex)
        • Ptex Painting
        • Surface Painting (Vertex painting)
      • Importing Into the Painting Room
        • Initial CC subdivision
        • UV Set smoothing
        • Sharp (hard) edge
        • Lock Normals
        • Load new UV layout After Model Changes
        • DAZ Genesis models into 3DCoat
      • Paint Menus
        • Edit menu
        • Textures Menu
          • Texture Baking Tools
        • Hide
        • Bake Paint menu
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        • The Blending Panel
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      • UV Top Bar
      • UV Left tool panel
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      • Importing into Retopo Room
      • Retopo Mesh Menu
        • Virtual Mirror Mode
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        • Autopo Baking guide
        • Baking guide
      • Top Bar
        • Select geometry
      • Left tool panel
        • Overall Purpose & Function
        • Add Geometry in the retopology room
          • Strokes tool in Retopology
        • Tweak Tools
        • UV Tools
        • Commands for Retopology room
      • AUTORETOPO
        • Autoretopology Guide
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        • Voxel Tools
        • Surface tools on Voxels
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        • Volumetric Painting
        • Voxel Objects Tools
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        • Splines model creation
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      • Fakebake the lighting -non PBR-
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      • Mesh Menu
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        • Add Geometry
        • Tweak
        • UV panel
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        • Selected
        • Entire Mesh
      • Loft surface example by Fluffy
      • Blockout by Poeboi
      • Import Zbrush Polygroups for UV mapping
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      • How to install Reality Capture
      • Reality Capture doesn’t show up ?
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Startup error Mac

349 views 0

Written by Carlos
June 25, 2024

“Red screen” (red window) means that “Gatekeeper” (a security feature in macOS) has isolated “3DCoat” executable from its data. This problem also manifests itself as “startup crash” on some machines.

To solve the problem clear in Terminal quarantine attribute from “3DCoat” folder:
Terminal > xattr -dr com.apple.quarantine /Applications/3DCoat-2024.xx
(put your actually installed version in the command above).

Please read more in this document: https://docs.google.com/document/d/1Auai329bOaBMuRbfo5ZHaYDRmEJ0NK3kWp6x1qJ08YA/edit?usp=sharing

3DCoat crashes (displays “red window”) on startup under macOS


Instructions are for “3DCoat” version “2022.48”. Replace “2022.48” below with the downloaded version.

In case “3DCoat” crashes on startup (or displays a “red window”) then most probably “Gatekeeper” (which is a security feature built into macOS) has isolated the “3DCoat” executable file from its data. In the macOS crash log you will see * (asterisk means several random subfolders) in the line:

Path: /private/var/folders/*/3DCoat.app/Contents/MacOS/3DCoat

To resolve the problem do the following:

1. Click Launchpad > inside the field Search type Terminal and then run it.

2. Start to type the command xattr -dr com.apple.quarantine (press the space key at the end and do not press the enter key yet)

(you can copy that partial command into the clipboard with ⌘+C and then paste it into Terminal with ⌘+V but add space at the end anyway)

3. Then click Finder > Go > Applications and drag & drop the folder “3DCoat-2022.48” (or any future upgrade) onto the Terminal window. The final command will look like $ xattr -dr com.apple.quarantine /Applications/3DCoat-2022.48 (press the enter key to execute it)

4. “3DCoat” should run now.

Maybe if you will check System Settings > Security & Privacy > General > click the lock to unlock the grayed fields > Allow apps downloaded from: (*) App Store and identified developers (instead of only App Store) then future “3DCoat” upgrades will start without the command above.

If the instruction above didn’t work for you then follow the instruction below.

Step-by-step on how to install “3DCoat 2024” and check data integrity


Download “3DCoat-2024.xx.dmg” from here:

https://pilgway.com/~sergyi/links-macOS.html

Then do the following:

Step 1. In the Terminal go into the “Downloads” folder:

% cd ~/Downloads

2. Make sure that:

% ls -l 3DCoat-2022.48.dmg returns size 963412266 (bytes)

% shasum 3DCoat-2022.48.dmg should return checksum e2fc81b32556cbcd5f9308f4582a981180828e12

3. Clear extended attributes (among them could be “com.apple.quarantine”):

% xattr -c 3DCoat-2022.48.dmg

Make sure that there is no attribute “com.apple.quarantine”:

% ls -l@ 3DCoat-2022.48.dmg

4. Open the disk image and, as always, drag & drop “3DCoat-2022” into the “Applications” icon:

% open 3DCoat-2022.48.dmg 

Step 2 checks the integrity of the downloaded disk image.

Step 3 clears the extended attribute “com.apple.quarantine”, which is crucial.

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