Archive 19/01/2023.

Separate Render scale?

HaeferlKaffee

Is there a way to render to a different resolution than the viewport? e.g. 1920x1080 viewport and window, but 192x108 raster size

Eugene

Rendertargets could have arbitrary sizes specified in RenderPath

HaeferlKaffee

The problem with that is that I don’t think it’s possible to edit the output of the base renderpaths. They don’t output to rendertargets seemingly

Bananaft

github.com

urho3d/Urho3D/blob/master/bin/Data/PostProcess/BloomHDR.xml

<renderpath>
    <rendertarget name="bright2" tag="BloomHDR" sizedivisor="2 2" format="rgba16f" filter="true" />
    <rendertarget name="bright4" tag="BloomHDR" sizedivisor="4 4" format="rgba16f" filter="true" />
    <rendertarget name="bright8" tag="BloomHDR" sizedivisor="8 8" format="rgba16f" filter="true" />
    <rendertarget name="bright16" tag="BloomHDR" sizedivisor="16 16" format="rgba16f" filter="true" />
    <rendertarget name="blur2" tag="BloomHDR" sizedivisor="2 2" format="rgba16f" filter="true" />
    <rendertarget name="blur4" tag="BloomHDR" sizedivisor="4 4" format="rgba16f" filter="true" />
    <rendertarget name="blur8" tag="BloomHDR" sizedivisor="8 8" format="rgba16f" filter="true" />
    <rendertarget name="blur16" tag="BloomHDR" sizedivisor="16 16" format="rgba16f" filter="true" />
    <command type="quad" tag="BloomHDR" vs="BloomHDR" ps="BloomHDR" vsdefines="BRIGHT" psdefines="BRIGHT" output="bright2">
        <parameter name="BloomHDRThreshold" value="0.8" />
        <texture unit="diffuse" name="viewport" />
    </command>
    <command type="quad" tag="BloomHDR" vs="CopyFramebuffer" ps="CopyFramebuffer" output="bright4">
        <texture unit="diffuse" name="bright2" />
    </command>
    <command type="quad" tag="BloomHDR" vs="CopyFramebuffer" ps="CopyFramebuffer" output="bright8">
        <texture unit="diffuse" name="bright4" />
    </command>
    <command type="quad" tag="BloomHDR" vs="CopyFramebuffer" ps="CopyFramebuffer" output="bright16">

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Check BloomHDR as an example. It creates rendertargests of smaller size and stretches them back to fullscreen.

there is also a quick but dirty way to set this up: render everything to texture then diplay it as UI billboard.