Page History

Adaptive GI – Enables adaptive GI.

Transparent shadows – Enables materials to cast transparent shadows.

AA filter – Enables the use of Anti-aliasing filter.

Total ray bounces – Specifies a limit for reflection and refraction bounces.

Primary samples

GI – Specifies the number of bounces for the traced GI rays.

Reflection – Specifies the number of bounces for the traced reflection rays.

Refraction – Specifies the number of bounces for the traced refraction rays.

Light cache – Enables light cache.

Filter primary rays – Enables filtering for primary rays.

Cell size (world) – Specifies the size of a single voxel, in scene units.

Sampler Sample limit – Specifies the maximum samples per pixel for refining the image.

Retrace thresh. – Specifies the extent to which GI near corners are retraced instead of being read from the light cache. A value of 0.0 disables retracing.

Misc.

Transparent shadows – Enables materials to cast transparent shadows.

AA filter – Enables the use of Anti-aliasing filter.

Total ray bounces – Specifies a limit for reflection and refraction bounces.

Area lights

Num samples – Specifies the number samples that area lights cast.

Rect. sampling – Specifies the way rectangle lights are sampled.

Area – It is faster for calculations (faster FPS) but clears the image more slowly.
Reprojection – It is slower for calculation (smaller FPS) but clears the image faster. From the very first sample, you can notice that there is far less noise than when using Area.

MIS mode – Selects the Multiple Importance Sampling mode for the lights.

Image Modified

Denoising

Spatial filter strength – Specifies the spacial filter strength.

Temporal denoising – Enables denoising of the previous frames. When disabled, the current frame is denoised on its own.

Spacial denoising – Enables spacial denoising.

Spacial iterations – Controls one of the parameters for quality of denoising. Higher values make denoising more stable.

Temporal AA – Applies time based anti-aliasing

H./V. overscan – Scales the image, so that border pixels can be denoised better.

Animated noise pattern – Enables the generation of random numbers (noise) for each frame.

Depth of field

Center bias – Defines a bias shape for the bokeh effects. Positive values make the outer edge of the bokeh effects brighter; negative values make the center of the effect brighter.

Anisotropy – Allows stretching of the bokeh effect horizontally or vertically to simulate anamorphic lenses.

Polygonal – When enabled, a polygonal aperture is simulated, with the specified number of blades.

Num sides – Specifies the number of blades for the polygonal aperture.

Rotation –  Defines the rotation of the blades in degrees.

Motion blur – Enables motion blur.

Exposure time(s) – When enabled, the Exposure value affects the image brightness. 

Collisions

Step height ratio – Adjusts sensitivity when climbing steps or obstacles. Higher values allow stepping on higher surfaces.

Height tolerance – Specifies the height up to which no collision is detected. For example, if you have small rocks or grass below that value, they are ignored and the camera does not bounce up and down.

Gravity – Specifies the acceleration applied on the camera when collision is enabled.