Post Processing
Adjust tone mapping, image color, reflections, and photographic effects.
Updated
Open Render Settings > Post to adjust the image after the scene is shaded. Enable Post Processing, then enable the effects you want.
Compare before and after
Click Before to temporarily inspect the image without the post-processing stack. The button changes to After so you can return to the processed view.
This comparison does not rewrite the saved effect settings. Return to After before judging the final appearance.
Tone mapping and color
Tone Mapping controls how bright scene values become the displayed image.
- Choose Neutral, AgX, or ACES with Operator.
- Adjust Exposure in photographic stops.
- Use Saturation and Contrast for the overall response.
- None (Diagnostic) is available for inspection.
Color Grading adjusts Temperature, Tint, Lift, Gamma, and Gain. Make small changes and compare against the unprocessed image.
Reflections and ambient occlusion
Reflections (Screen Space) adds reflections of visible scene detail on smooth and metallic surfaces.
| Control | Use |
|---|---|
| Strength | Adjust reflection contribution. |
| Maximum Roughness | Set how rough a surface can be before the effect fades out. |
| Thickness | Adjust the depth tolerance used to find reflected surfaces. |
Screen-space reflections depend on what the camera can see. They cannot provide complete reflections of off-screen geometry.
Ambient Occlusion adds contact and cavity definition. Adjust Strength and Size, then choose which Ambient, Diffuse, and Specular components it affects. Color tints diffuse AO; specular AO remains neutral.
Bloom, vignette, and grain
| Effect | Main controls |
|---|---|
| Bloom | Intensity, Radius, HDR Threshold, and Color. |
| Vignette | Amount, Size, and Feather. |
| Grain | Amount. |
Bloom adds glow around bright highlights and emission. Raise HDR Threshold to restrict glow to brighter areas.
Work in a useful order
Establish lighting first. Set tone mapping and exposure next, then adjust color and the remaining effects. Inspect the image at the intended output size, especially when using fine grain or small details.