Windows: Builder's 3-D view is black until a structure is loaded; MSI install takes ~80 s
Nobody has claimed this yet.
Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 45/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Active
- Tech stack
- c
- Domain
- computer-graphics, desktop
Research direction
Start by reproducing the black Builder 3-D view on Windows 10 and compare its first paint with Linux and macOS. The issue names no source files or tests, so locate the Builder viewer entry point and inspect the MSI installation logs with msiexec /l*v timestamps to establish where time is spent. Done means the viewer has its expected background before a structure is loaded and the installation delay has been investigated; the issue leaves the fix and performance target open.
Written by the indexing model from the issue text.
Description
Seen 2026-10-16 recording the install video on a fresh Windows 10 account (9.2.0 MSI):
- Black view. Tools › Builder opens with a black 3-D view, which stays black for about 25 s, through Add Structure from File, until water.xyz is drawn. The background is white on Linux and macOS. Expected: the viewer's background from the first paint.
- Slow install. The MSI's "Please wait while Windows configures ECCE" phase takes about 80 s. The MSI holds about 160 MB in many small files (bundled Python, Perl, wxPython), and Windows Defender scans each one. Options: fewer files (Python stdlib in a zip, pruning unused packages), or measure where the time goes with
msiexec /l*vtimestamps first.
Not release-critical.
- Dominant language
- C
- Stars
- 10
- Forks
- 8
- Avg merge
- 21m
- Merged PRs (30d)
- 1
Getting set up
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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