Assuming Game Mode might be used for primarily XBox One X and PS4 Pros, it might be nice to have your recommended settings for each of these consoles. Also per your DTM comments, would it just be best to run HDR directly to our projectors vs using DTM? Almost all new games are 4K HDR. The frame delay would only be seen at the beginning of scene cuts vs. game playing? Just want to minimize delay. Thanks for adding this feature! SJI wanted to post an update on Game Mode for the Radiance Pro:
We are doing internal testing of an update that includes a "Game Mode" that significantly reduces the delay through the Radiance Pro when enabled.
With Genlock on, the Game Mode input frame start to output frame start delay should be approximately 1/8 of a frame (roughly 2 mS at 60 Hertz) if the input and output are both 16:9 and not using the "Output Shrink" feature. It should be about 1/4 of a frame delay (roughly 4 mS at 60 Hertz) if output "top shrink" is the typical 12.17% used for a 2.35 screen without an anamorphic lens. It should be about 3/8 of a frame (roughly 6 mS at 60 Hertz) if Output Shrink is 24.34% at the top of the screen (2.35 screen, no lens, all the the blanked pixels above the screen).
Typical caveats for Genlock apply. That is, Genlock will increase jitter to some degree, and some projectors/TVs are not tolerant of the additional jitter. Without Genlock the Pro output jitter is below the HDMI spec, but it might increase to a bit over the HDMI spec with Genlock on. In addition, Genlock forces an HDMI output restart every time the input rate, or source, is changed. This only affects switching time, unless you have a marginal projector input (many are) that has trouble locking on to a new signal or a signal with slightly higher jitter.
With Genlock off, the input to output delay will have an addition zero to one-frame (16.67 mS at 60 Hertz) of delay since the input and output frames free-run and are not in "lock step" as they are with Genlock on.
These times are approximate until we make sure there is no frame tearing in the output (from flipping frames too soon). We are trying to make sure there will be no tearing, but cannot test all possible combinations. When you use Game Mode, if you notice any frame tearing with your specific settings, please let Lumagen support know.
Game Mode will be in the Input->Options->A/V Delay menu (formerly named the "Lip sync" menu). After selecting Game Mode, press OK and answer the "scope" question to say if it should apply to more than the current input and input memory. Then do a Save.
This release will also have a new and better FPGA. We have had a couple people have issues with the current FPGA in 042120. At least one of these systems is now working with the FPGA load in the test release.
If testing continues to go well, we should be posting the new release with Game Mode included on May 5 or 6.
[EDIT] BTW: Game mode works with DTM, *however* the DTM is applied a frame later than the scene cut. So you can use DTM for HDR games, but you might notice this extra frame delay in the change of the transfer function at scene cuts.