> For the complete documentation index, see [llms.txt](https://docs.ndi.video/all/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ndi.video/all/faq/ndi-6/hdr-faq.md).
# HDR FAQ
How is HDR (High Dynamic Range) supported in NDI?
As of NDI 6.0 the NDI SDK supports 16-bit data formats and standardizes metadata elements to specify wide gamut color primaries and HDR transfer functions, including HLG and PQ. This enables broadcasting high bit depth, wide color gamut, and high dynamic range video, with brightness up to 10,000 nits when using the PQ transfer function.
Does NDI support HDR10, HDR10+ or Dolby Vision?
No. Although these HDR formats are built on PQ, NDI does not support the full capabilities or additional metadata used by those specifications.
Does NDI support tone mapping for HDR content?
No, the SDK explicitly states it does not alter frame content. It signals what the content is and the receiver device decides how to display it, whether to tone map, and how to convert to SDR if needed. Tone mapping is done in the application or device receiving the content.
Does NDI support SEI metadata in H264/H265?
Any SEI metadata would sit inside the compressed stream. NDI transports the packets as is, and does not inspect, validate, or alter the compressed payload.
Can HDR content be received and displayed in Studio Monitor?
Yes, Studio Monitor can receive HDR content, however, it must be running on an HDR display to properly display the stream. If Studio Monitor is running on an SDR (standard dynamic range) display, the content will be downconverted and displayed as SDR.
Can I generate NDI HDR content with Test Patterns?
Yes, Test Patterns can generate HDR signals. Note that the default test patterns included are only available in HLG. To output PQ you will need to include a custom HDR image in PQ format. For more information, click here: [Test Patterns | How to Output in HDR](/all/using-ndi/ndi-tools/ndi-tools-for-windows/test-patterns/how-to-output-in-hdr.md)
Can ScreenCapture capture and send content in HDR?
ScreenCapture is not capable of outputting HDR even if the screen being captured is HDR.
However, ScreenCaptureHX does support capturing HDR screens using 10-bit HEVC.
Can NDI HDR content be sent over NDI Bridge?
Yes, HDR content generated in the local network can be received on the remote network (or vice versa) when connected via NDI Bridge.
When monitoring NDI devices, how can I identify if the content is HDR?
In the NDI Discovery tool, when monitoring either senders or receivers, look in the properties panel. If the content is HDR, you should see the following fields and values:
* Color Primaries: **bt\_2100**
* Transfer Function: **bt\_2100\_hlg** or **bt\_2100\_pq**
* Matrix Coefficients: **bt\_2100**
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