Open topic with navigation

Post Processing Effects (Post Processing)

Additional to the (Camera) Imager the Post processing node provides useful post-processing effects on the resulting render such as Bloom and Glare.
You can enable or disable post-processing effects and is disabled by default. Similar to the (Camera) Imager settings, changing the Post processing settings during rendering does not have effect on the rendering progress.

The Post-Processing parameters can be accessed directly from the Settings Tab (Figure 1).

Figure 1: Post process settings can be accessed by clicking on the icon next to the Node Inspector

The Post ProcessingEffects such as Bloom and Glare that are applied after a scene has been rendered. Node Parameters:

• Enable - This is a boolean value used to enable or disable post-processing effects on the resulting render. Post-processing is disabled by default.

• Bloom Power - Controls the size and intensity of the halo around the sun, light source, or reflective glossy materials.

• Glare Power - Controls the size and intensity of the glare originating from reflective glossy materials.

• Glare Ray Amount - Controls the number of visible rays radiated or reflected.

• Glare Rotation Angle - This is used to adjust the rotation of the glare relative to the object. A glare angle of -90 and 90 results to one main horizontal glare and a glare angle of 0 results to one main vertical glare.

• Glare Blur - Controls the sharpness of the glare. Smaller values will result to a crisp linear glare and this is softened as the value is set higher.

• Spectral Intensity - Used to adjust the intensity distribution of the rays across a source. This affects the strength or weakness (brightness) of the radiant energy.

• Spectral Shift - Used to adjust the displacement of the spectrum as the frequency of light emitted from a source changes. The shift is evident by a color change, similar to the Doppler Effect.

Usage Examples:

Figure 1 (left): Post processing disabled

Figure 2 (right): Bloom Power: 170 Glare Power: 0.0010 Glare Ray Amount: 1 Glare Rotation Angle: -90 Glare Blur: 0.0010

Figure 4 (left): Bloom Power: 0.0010 Glare Power: 100 Glare Ray Amount: 2 Glare Rotation Angle: 50 Glare Blur: 0.0010

Figure 5 (right): Bloom Power: 0.0010 Glare Power: 100 Glare Ray Amount: 2 Glare Rotation Angle: 50 Glare Blur: 0.1000

Sample Images with Post-Processing Applied with Bloom and/or Glare effect:

Figure 5: Bloom effect

Figure 6: Glare effect

Figure 7: Bloom and Glare effect

Another example of an images with Post-Processing Applied:

Figure 8: African nature scene Render using post-process effects

Open topic with navigation