Quickstart Guide

QuickstartGuide

User Manual:

Open the PDF directly: View PDF .
Page Count: 2

Documentation

How to use

Simply add the “Simple Screen Space Ambient Occlusion” to any camera you wish to

use the eect.

Parameters

•Axis pattern: Texture used for the interleaving pattern. Should be a 3x3

texture, you can re-generate the included one using SimpleSSAO->Generate

Axis Pattern Texture, or modify AxisPatternGenerator.cs to create a custom

one.

•Quality: influences amount of samples taken by the occlusion shader. Higher

quality settings take more samples, and will look better but perform worse.

•Radius: maximum reach of the eect in world space units.

•Radius range: Minimum/maximum radius in pixels. Since the radius is scaled by

pixel depth, pixels further away from the camera might get a very small radius.

This parameters clamps the radius so that it doesn´t get too small or too big.

•Occlusion Bias: Width of the occlusion cone considered by each pixel. Set it

higher to reduce self-occlusion.

•Occlusion Oset: Amount of base occlusion. Increasing its value will cause flat

surfaces to turn grey, occlusion will be subtracted from corners and added to

crevices, resulting in increased contrast.

•Occlusion Exponent: Controls the shape of the occlusion curve. A value of 1

means linear occlusion, a value of 2 quadratic occlusion, and so on.

•Occlusion Intensity: Modulates the amount of occlusion contributed by each

pixel.

•Luminance modulation: Amount of occlusion removed from high-luminance

areas. This can help reduce AO in areas directly hit by light, which avoids

washed out colors and keeps AO to shadowed areas only.

•Bleeding Intensity: Modulates the amount of color bleeding.

•Downsampling: amount of dowsampling performed when calculating AO and

color bleeding. A value of 1 means full screen size, 2 means half-screen

resolution, 4 a quater-screen resolution. Higher values will increase

performance and decrease quality.

•Blur: on/o blur toggle, useful for visualizing raw unfiltered output.

•Blur Depth Threshold: minimum depth dierence between blurred fragments.

•Blur Normal Threshold: minimum normal diference between blurred

fragments.

•Visualization: Allows you to visualize the occlusion or bleeding buers only.

Useful when fine-tuning eect parameters.

Support / Contact

If you have any suggestions, questions or issues, contact the developer at:

support@virtualmethodstudio.com