Post-Processing Filters

Post-Processing Filters (previously "Camera Effects") are visual effects that are applied at the end of shading. They are great for fine-tuning your renders, making them more photorealistic, or changing the mood of your scene.

The post-processing filters are available in 3D Settings.

  1. From your model, go to Settings → 3D Settings or add "/edit" to the end of any model URL.
  2. Select the Post Processing Filters panel in the top left.
Only the model's author can access 3D Settings. Edits you make will not change your original file, they will only affect viewing on Sketchfab.

Sketchfab 3d model settings material editor

Sketchfab 3d model settings scene editor

Sketchfab 3d model settings post processing filters

The available effects are:

SSAO (Screen space ambient occlusion)

SSAO (Screen space ambient occlusion) approximates ambient occlusion in real time. It calculates how exposed each point of the model is to ambient lighting, and can be used to improve the look of details.

The sliders control the Radius (size of shadows), Intensity (darkness of unexposed areas), and Bias (the sensitivity of occlusion to differences in depth and normal).

Sketchfab 3D settings post-processing filters - ssao

A low Bias value means that pixels will be occluded even when there is a small change in depth/normal. A high Bias value means that pixels will only be occluded when there is a large change in depth/normal.

ssao-off.png

ssao-low-bias.png

ssao-high-bias.png

Grain

Grain can be used to simulates film grain for "photorealistic rendering", or to add details to uniform areas to make the model look less synthetic (e.g. gradients, solid colors).

The slider controls the opacity of the grain. The Animated toggle makes the grain move.

Sketchfab 3D settings post-processing filters - grain

Depth of Field (DoF)

Simulate a shallow depth of field. Click/tap the model to set the focus point. Adjust the blurriness of the foreground and background with the sliders. Not compatible with image backgrounds.

Sketchfab 3D settings post-processing filters - depth of field
Hautefort by Gerpho

Sharpness

The Sharpness effect lets you enhance the definition of the model and reveal more details.

Adjust the value from 0 (no sharpening) to 100 (maximum sharpening).

Sketchfab 3D settings post-processing filters - sharpness

Chromatic Aberration

The Chromatic Aberrations effect simulates the color distortions on the edges of a real world camera lens.

Adjust the value from 0 (no aberrations) to 100 (maximum aberrations).

Sketchfab 3D settings post-processing filters - chromatic aberrations

Vignette

The Vignette effect darkens the borders of the image. It is a good way to focus the attention on the center of the scene.

Adjusting the Amount value will change how much of the image is darkened.

Adjusting the Hardness will change how the smooth the transition between is the darkened part and the original part.

Sketchfab 3D settings post-processing filters - vignette

Bloom

The Bloom effect makes the highlights glow.

Adjusting the Threshold will change how much of the image is affected.

Adjusting the Intensity will make the glow brighter or dimmer.

Sketchfab 3D settings post-processing filters - bloom

Tone Mapping

The Tone Mapping effect lets you make common image adjustments such as Exposure, Brightness, Contrast, Saturation.

Sketchfab 3D settings post-processing filters - tone mapping

Color Balance

The Color Balance effect lets you adjust the color tint of the image in shadows, midtones and highlights.

Adjusting Red, Green, Blue channels will make the image more or less of the selected color.

Sketchfab 3D settings post-processing filters - color balance

Backgrounds

Certain types of backgrounds are excluded from some effects. For example, Sharpness does not influence the background, only the model. Additionally, some effects are disabled in VR mode.

Filter Fixed Image Environment / Solid Color VR
SSAO Yes Yes Yes
Grain Yes Yes No
Depth of Field No* Yes No
Sharpness No No No
Chromatic Aberrations No Yes No
Vignette Yes Yes No
Bloom No No Yes (desktop)
Tone Mapping No Yes Yes
Color Balance No Yes Yes

 

*Depth of Field cannot be used with a Fixed Image background

Effect Order

For performance reasons, Post-processing filter order can not be changed. They are applied to the scene in the following order:

  1. SSAO
  2. Depth of Field (DoF)
  3. Bloom
  4. Chromatic Aberrations
  5. Color Balance
  6. Tone Mapping
  7. Vignette (if there is background or at least one of #2, #3, #4)
  8. Anti-aliasing*
  9. Sharpen
  10. Vignette (if there is no background and no #2, #3, #4)
  11. Super-sampling*
  12. Grain
*Anti-aliasing and super-sampling cannot be controlled in 3D Settings. They will not be applied if there is no background (i.e. transparent)

These effects, especially Bloom, are quite processing intensive. If you notice poor performance, particularly on mobile devices, try disabling some.

Saving

Once you've made your adjustments, including position and orientation, be sure to update your model's thumbnail image and default position with Save View and/or save your changes with Save Settings. You can return to your model by clicking either the model's name or Exit.

Also see:

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