Pathtracing Lighting Too Bright - Do I need to re-light the scene?

Omniverse General Discussion
1

This is the same exact scene shown using Raytracing and Pathtracing. Do you need to re-light your scene when using Pathtracing? Are there any other tricks you need to know when setting up a scene for Pathtracing?
Raytracing:

raytracing
raytracing1920×1080 567 KB

Pathtracing:

pathtracing
pathtracing1920×1080 417 KB

1 Like
2

Re-lighting for Path-tracer mode is not necessary.

You may try the following settings and then compare Real-Time Ray-tracer (RT) with Path-tracer mode (PT).

RTX Settings → Real-Time Renderer → Ray Tracing Tab → Direct Lighting Section → Enable Sampled Direct Lighting = On

RTX Settings → Real-Time Renderer → Ray Tracing Tab → Indirect Diffuse Lighting → Ambient Light Intensity = 0.0

Let us know,
Thanks

3

Hi, thanks for the quick response. I tried those settings but they don’t seem to affect the path-tracer, only the ray-tracer. The Ambient Light Intensity setting definitely makes the scene darker when in RTX Real-Time mode, but has no effect in RTX Path-Traced mode.

4

Can you post a render comparison between PT and RT with the above settings?

Thanks

5

Here are some screenshots after applying those settings:

Realtime:

realtime2
realtime21253×625 715 KB

Pathtraced:

pathtraced2
pathtraced21258×626 1.19 MB

6

Hi @jholbrook ,
Could you post a small sample of the scene for us to look at?