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Post Process Effects

Bloom

API

The Bloom effect adds a halo-like quality to images.

Properties

  • Down Scale: Controls the starting resolution of the bloom post-processing. The default is Half, meaning the initial downsampled resolution is half of the canvas. If precision is not a major concern, it can be switched to Quarter to save resources, reducing it to 1/4 of the canvas.
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Half
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Quarter
  • Threshold: The bloom effect filters out pixels below this brightness level. The lower the value, the larger the Bloom area. This value is in gamma space, with a default of 0.9.
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0.9
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0.5
  • Scatter: Sets the diffusion range of the bloom effect, default is 0.7.
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0.3
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0.8
  • Intensity: The strength of the bloom effect.
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1
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2
  • Tint: The tint color for the bloom effect.
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White
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Red
  • Dirt Texture: Adds smudges or dust to the bloom effect using a dirt texture.
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Off
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On
  • Dirt Intensity: The intensity of the dirt texture.
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1
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5

Tonemapping

API

Tonemapping remaps the HDR values of an image, improving the overall contrast and color saturation.

Tonemapping is generally used after enabling HDR mode on the camera.

For example, enabling ACES tonemapping in the image below increases the dynamic range in sun-exposed areas, revealing more details:

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Tonemapping Off
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Tonemapping On

Properties

  • Mode: Tonemapping algorithm. You can choose between Neutral and ACES. The Neutral mode is particularly suitable for situations requiring only range remapping with minimal impact on tone and saturation. The ACES mode uses the cinematic ACES reference color space, which can produce film-like contrast effects but is more consuming in performance.
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Netural
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ACES

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