r.VolumetricRenderTarget.Mode

[0] trace quarter resolution + reconstruct at half resolution + upsample [1] trace half res + reconstruct full res + upsample [2] trace at quarter resolution + reconstruct full resolution (cannot intersect with opaque meshes and forces UpsamplingMode=2 [3] Cinematic mode with tracing done at full reoslution in render target so that clouds can also be applied on translucent.)