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Feature Request Apply Bloom FX only to specific layers, sorting layers, materials or whatever

Discussion in '2D Experimental Preview' started by ThundThund, Apr 24, 2021.

  1. ThundThund

    ThundThund

    Joined:
    Feb 7, 2017
    Posts:
    255
    Hi everybody,

    AFAIK in the URP and its 2DRenderer the post-processing FXs are applied to all the geometry rendered by one camera. However it's very common that one needs to apply the Bloom FX to only a subset of them, without using different cameras (to avoid problems with sorting). Possible ways to select which pixels are added to the Bloom FX texture:
    • Emissive color: Only the emissive output would be written to a temporary texture. Every non-emissive pixel that has lower Z would erase existing pixels in such texture.
    • Layer: All the geometry in a specific layer would be rendered to the temporary texture, using a Threshold.
    • Sorting layer: The same as previous but using 2D sorting layers.
    • Type of shader: Like "Sprite-Emissive-Lit".
    • Checkbox in material.
    • Special Renderer component: Like "SpriteRendererEmissive".
    If you don't plan to implement anything like this in the future, at least I would like to know about alternatives. I think it's impossible to do this in the URP / 2DRenderer at the moment.
     
    MousePods, xiao-xxl and GliderGuy like this.
  2. xiao-xxl

    xiao-xxl

    Joined:
    Nov 16, 2018
    Posts:
    37
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