May 6

A Special Beta Mode for Beta Testers

Idea SummaryI would love to see the devs provide more advanced DBLE and DTM tuning modes exclusively for beta testers. This would allow us to work much more closely with the team and collectively refine the algorithms to find the best real-world balance between contrast, clipping control, brightness, and creator intent.Use CaseDuring beta testing, having access to deeper tuning controls would let the community experiment with different combinations of settings and provide far more meaningful feedback. Right now, many of the algorithms feel too aggressive, and finer adjustment granularity could significantly improve the final implementation.Please let us help dial this in together.Suggested ImprovementsDBLE ControlsAdd a DBLE intensity slider (0–10) to control how aggressively DBLE pushes toward clipping on the high end.Add a DBLE response speed slider to adjust how quickly DBLE adapts to scene changes.Add a DBLE activation threshold slider based on image IRE (%).For example:DBLE Low might avoid affecting the top end entirely.DBLE High might aggressively target the full range.A configurable middle ground, such as activating above 70% IRE, could dramatically improve behavior when combined with the aggressiveness slider.This combination could allow much more intelligent and stable DBLE behavior while reducing visible clipping.Add a dedicated remote toggle button to instantly enable or disable DBLE without bringing up a menu overlay that interrupts or alters the current state.DTM ControlsPlease consider adding similar advanced controls for DTM:A DTM intensity slider (0–10) to control how aggressively the tone mapping curve operates.Right now, DTM still feels far too aggressive overall.A low-end tone mapping threshold slider.Currently, DTM boosts brightness even in scenes encoded well below the projector’s actual peak brightness capability. This often results in an image that feels artificially bright and less faithful to creator intent.Ideally, users should be able to define a lower range, for example:Preserve near 1:1 mapping up to 50 nits or 100 nits encoded brightness.Only begin stronger tone mapping above that point.This would allow users to create a much calmer, more natural image while still benefiting from DTM for true high-brightness content.At the moment, there is too much emphasis on producing a bright and punchy image rather than a balanced and accurate one.DTM & DBLE Headroom SliderA major improvement would be a headroom slider (0–10) for both DTM and DBLE.This would intentionally reserve some output headroom instead of constantly driving the image toward 100% peak output.For example:Allow the algorithms to target approximately 95% image IRE instead of 100%.This would provide safety margin for unexpected brightness fluctuations.It could significantly reduce clipping in difficult scenes, especially on faces, highlights, and specular details.MadVR already implements a similar concept very successfully. Its headroom controls make tone mapping and gamut mapping extremely robust and greatly reduce both luminance clipping and gamut clipping.This type of control could dramatically improve image stability and highlight preservation.Advanced Debug / Analysis ToolsIt would also be incredibly useful to have an optional on-screen waveform or histogram overlay showing:Incoming signal waveformOutgoing waveform after tone mappingOr ideally both simultaneouslyThis would allow beta testers to:Analyze clipping behavior in real timeIdentify exactly where DBLE or DTM is compressing or clipping informationFine tune settings scientifically instead of relying purely on visual estimationSurely tools like this already exist internally during development. It would be fantastic if advanced beta users could access them as well.Why It MattersThese kinds of advanced controls could help us collectively find settings that dramatically reduce or even eliminate clipping while also improving image stability and preserving creator intent.Right now, both DBLE and DTM are often overly aggressive. With deeper tuning options and proper diagnostic tools, I believe the final image quality could be taken to another level.

Pending