RTX - Minimal

Tiled minimal rendering of a robot arm during policy training

The Minimal render mode provides simple, fast rendering suitable for training-in-the-loop and other workflows where full light transport is not required and achieving the lowest possible latency and highest possible throughput is more important.

Minimal completely disables all indirect light transport and uses only the first distant light source found in the scene, with hard shadows only. Ambient light may also be used for improved visibility.

Settings

Display Name	Setting Name	Type and Default Value	Description
Minimal Shading Mode	/rtx/minimal/mode	Int 0	Selects the shading mode for simple/fast rendering. See Minimal Shading Modes below.
Minimal Shading Constant Color	/rtx/minimal/constantColor	Color3 (1, 1, 1)	The color to use in Constant Diffuse minimal shading mode.
Ambient Light Color	/rtx/sceneDb/ambientLightColor	Color3 (1, 1, 1)	Color of the global ambient environment lighting.
Ambient Light Intensity	/rtx/sceneDb/ambientLightIntensity	Float 0.0	Brightness of the global ambient environment lighting. A value of 0 disables ambient lighting.

Minimal Shading Modes

Mode	Description	Image
Real-Time 2.0 (reference)	Full Real-Time 2.0 renderer output shown for comparison.
Diffuse/Glossy/Emission	Minimal lighting with full material evaluation with diffuse, glossy, and emission component.
Textured Diffuse	Surfaces are shaded using their diffuse texture colors. This provides a fast preview that retains the appearance of material textures without evaluating glossy reflections or emission.
Constant Diffuse	All surfaces are shaded with a single constant color controlled by the Minimal Shading Constant Color setting.
No Rendering	No color shading is performed (black output). Use this mode when only other AOVs such as depth, normals or instance segmentation are needed, avoiding the overhead of lighting and material evaluation entirely.