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Bent Normal

This section contains settings related to bent normals.

Bent Normal Settings

Enabled The value indicating if ray-traced bent normals calculation is enabled. The use of SSRTGI for bent normals allows for smooth ambient lighting.
Notice
Ray-traced bent normals calculation available only when the SSRTGI technique is enabled.
Enabled by default.
Console access: render_bent_normal_ray_tracing (API control)

Preset The Bent Normal preset used at the moment. One of the following values:
  • Raytracing Low (by default)
  • Raytracing Medium
  • Raytracing High
  • Custom

Console access: render_bent_normal_preset (API control)
Notice
Presets override user-defined custom settings. When any preset other than Custom is active, modification of the parameters via API has no effect. The parameter value set via the last API call shall be used only when the Custom preset is active. When checking the current parameter value via API you'll get the corresponding setting stored in the active preset (default or custom one).

Customizable Settings#

The following settings are available when the Custom preset is selected.

Bent Normal custom settings

Bent Normal Settings
Threshold The threshold value for the ray-traced bent normals calculation.
Notice
Ray-traced bent normals calculation is available only when the SSRTGI technique is enabled.

Range of values: [0.0f, inf]. The default value is 1.0f.
Console access: render_bent_normal_ray_tracing_threshold (API control)

Fix Overlit Areas The value indicating if correction of overlit areas for bent normals calculation is enabled.
Notice
  • This option may significantly affect performance, so disable it when it's not necessary.
  • Ray-traced bent normals calculation is available only when the SSRTGI technique is enabled.
Enabled by default.
Console access: render_bent_normal_fix_overlit_areas (API control)

Color Clamping Intensity The intensity of TAA color clamping at zero pixel velocity for the bent normals effect. Lower values result in more accumulated frames combined, which reduces noise flickering, but increases ghosting effect (to reduce ghosting in this case you can use Bent Normal Color Clamping Velocity Threshold, while higher values reduce ghosting effect, but increase flickering.
Range of values: [0.0f, 1.0f]. The default value is 1.0f.
Console access: render_bent_normal_color_clamping_intensity (API control)
Color Clamping Velocity The sensitivity of TAA color clamping for the bent normals effect to pixel velocity change. This parameter is used to reduce ghosting effect for lower Color Clamping Intensity values: it automatically increases clamping intensity for higher velocities, and disables clamping for low velocity values.
Range of values: [0.0f, inf]. The default value is 0.0f.
Console access: render_bent_normal_color_clamping_velocity_threshold (API control)

Denoise Options#

Denoise The value indicating if noise reduction for ray-traced bent normals calculation is enabled. This option reduces noise by using blur effect.
Notice
Ray-traced bent normals calculation is available only when the SSRTGI technique is enabled.
Enabled by default.
Console access: render_bent_normal_ray_tracing_denoise (API control)
Radius The radius of the area to be affected by noise reduction for the bent normal effect.
Range of values: [1, 3]. The default value is 1.
Console access: render_bent_normal_denoise_radius (API control)
Quality The noise reduction quality level for Bent Normals calculation defining the number of samples used. Higher values provide better reduction, but for a performance cost (choosing Medium is enough in most cases). One of the following values:
  • Low - low quality
  • Medium - medium quality (by default)
  • High - high quality
  • Ultra - ultra quality

Console access: render_bent_normal_denoise_quality (API control)
Intensity The noise reduction intensity for the Bent Normals effect. Higher values provide a less noisy, but more blurred result.
Range of values: [0.0f, 1.0f]. The default value is 0.2f.
Console access: render_bent_normal_denoise_intensity (API control)
Gaussian Sigma The sigma parameter of Gaussian blur used for noise reduction for the bent normals effect. This parameter controls the amount of blur applied.
Range of values: [0.0f, 100.0f]. The default value is 10.0f.
Console access: render_bent_normal_denoise_gaussian_sigma (API control)
Threshold The threshold value for color difference of neighboring pixels used for noise reduction for the bent normals effect. Blur is applied when the color difference is less than the threshold value.
Notice
Too high values result in blurring the whole image.

Range of values: [0.0f, 1.0f]. The default value is 0.2f.
Console access: render_bent_normal_denoise_threshold (API control)
Last update: 2022-03-10
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