openframeworks / openframeworks/openFrameworks
ofFbo.readToPixels on android
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Description
Hi there!
I try to read the content of an Fbo to pixels for marker detection on Android. Yet fbo.readToPixels(p) doesn't seem to work - the resulting pixels remain black (I assume that's how they were initiated).
In LogCat I get this error: SurfaceTexture: updateTexImage: clearing GL error: 0x502
Is this maybe not yet implemented?
Best, Benni.
Contributor guide
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.
Research direction
Start by reproducing the Android case using fbo.readToPixels(p) and inspect the LogCat SurfaceTexture error. Compare the resulting pixels with the expected FBO contents and determine whether Android support is missing or the readback is failing; done means the issue has a confirmed cause and a verified non-black readback or a documented limitation.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- android, cpp
- Domain
- computer-graphics, mobile-dev
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100