RH DRT
One Tool, Infinite Possibilities. A physically-grounded spectral rendering engine. Built from first principles to bring the physics of photochemical dye absorption and an 11-step hybrid hue-handling process into your digital pipeline.
Physical Light Inspired 3D Rendering.
The RH DRT goes beyond simple subtractive or additive models, utilizing a sophisticated hybrid approach. It acts as a physical light-inspired, 3-dimensional rendering of colors that naturally gives the image organic properties. When you increase saturation, shadows get denser. Highlights roll off gracefully. It’s inspired by film, powered by physics, and completely its own thing.
Global Controls
Set the foundation of your look using purely physical parameters. Adjust overall exposure and saturation, shift where middle gray sits, and push/pull contrast while maintaining perfect spectral integrity. The zero-is-home design means defaults always yield a calibrated reference rendering.
Highlight & Shadow Management
A handcrafted, dynamic Quintic S-Curve with C1 continuity controls the boundaries. Highlights roll off gently toward neutral white, preventing neon blow-outs, while the deepest shadows gracefully desaturate to avoid chromatic noise, maintaining perfect mathematical smoothness everywhere.
Density-Domain Split Toning
Traditional split toning operates in RGB space. The RH DRT operates directly on the dye concentrations. Pushing red into the shadows decreases Cyan density while proportionally increasing Magenta and Yellow, shifting color smoothly while preserving luminance.
Spectral Crosstalk
In real film, dye layers don't form in isolation. The DRT features our own implementation of spectral crosstalk, allowing you to sculpt inter-layer interactions. Focus the interaction between Cyan and Magenta to specific tonal zones to reshape your vectorscope organically.
Printer Density Controls
Modeled after lab printer lights, these sliders adjust Cyan, Magenta, and Yellow dye densities independently. Operating in the spectral domain means dialing up "Printer Yellow" correctly cross-contaminates with other layers, producing film-accurate color shifts.
Technical Specifications
Engineered for uncompromising quality in professional post-production environments.
Architecture
GPU-accelerated (CUDA / OpenCL / Metal) DCTL. Real-time per-pixel, per-frame spectral integration.
HDR Support
Fully dynamic from 100 to 4000 nits. Supports Rec.1886, sRGB, Display P3, Rec.2100 PQ, Rec.2100 HLG, and Dolby PQ.
Input Agnostic
Seamlessly normalizes inputs across ACES AP0/AP1, DaVinci Wide Gamut, and ARRI LogC3/LogC4 into a unified working space.
Join the Waitlist
The RH DRT is currently in private beta. Sign up to get early access, exclusive technical updates, and special early-adopter discounts upon public release.