LightWave 3D (Kray Tracing Tips&Tricks)

About Kray:

 Kray is global illumination renderer for LightWave 3D (for rendering uses CPU)

Official Website: https://www.kraytracing.com

The Creator of Kray : Grzegorz Tański

 Key Features:

Final Gathering
Full Raytracing Photon Mapping
HDR image based lighting
Multiprocessing Real time scene preview
Instancing
Path Tracing

 Kray Interface:

Settings for Kray:

Diffuse Model:

-Photon Maping + Cache Irradiance On
 Tips(if you want the most accurate shadows use Path Tracing)
-Caustics (Only On if You use Water or Glass Surface)

GI Mode(Global Illumination):

-Independent (For still Renders)
-Time Interpolation (Animation)
-Shared for all Frames (Only Camera Move in Animation)

Camera:

-LightWave

Pixel Order:

-ScanLine

Tonemap:

-Exponential (2.2 Parameter  Exp 1.05)
 (Limit DR After Tonemap)HSV Mode Off

Photons Tab:

Use Medium or High Settings

Final Gather Tab:

GI Resolution: Auto

-FG Threshold 0.0
-Min Rays 600  Max Rays 1200
-Prerender 100%
-Passes 2
-Splotch D 0.02
-Sensitivity 0.05

-FG Reflecion On
-FG Transparency/Rafracion On

-Spatial Tolerance 0.07
-Angular Tolerance 30
-Min distance 10% Max 1000%
-Blur Samples 1.0

-Path Passes 1
-Corner Distance 50 %


Sampling Tab:

AA Preset Custom

Pixel Filter Box 0.7 Radius
Antialiazing Grid 4 or 5 
Full Screen Antializasing On
Rotated Grid On

Undersample None

Quality Tab:

Luminosity Model : Compute as Indirect (RTX) Ray Tracing
Area Lights : Compute Separately
Area Light Visibility : Invisible

Double Sided Off
Spotlights to Area Off

Other settings use from Presets :Medium

Post Processing in Kray

Misc Tab:

For Now in Kray use command:

Footer Cmds

postprocess add,(0.5,0.5,0.5); 
(RGB  Red 0.5 Green 0.5 Blue 0.5) It's Great for Color Balance

postprocess ca,0.1,1,2,100; 
(Chromatic aberration Filter)

postprocess autoexp,0.5;
(Add exposure of an image)

postprocess mult,(0.5,0.5,0.5);
(Color Balance + Light Balance)

postprocess desaturate,0.98;
(Desaturate Image but You can Tweak this in on the reverse)
Example : postprocess desaturate,-0.5; give You strong Contrast)

postprocess gamma,0.9;
(Use this command when You have got to dark Interior for example)

GI Bouces:
recurse 10;
(It's means 10 Bounce of Light)

Try to mix This Parameters ;)

For Example:

postprocess mult,(0.5,0.5,0.5);postprocess ca,0.1,1,2,100;postprocess desaturate,0.98;

Best Regards and Happy Renders!
Adrian