“Surface ForwardShading”
This a normal level of quality selection we have and work like that without Substrate too.
the platform on the bottom is “getting pushed back” really far.
There is no issue I can see, this has also always been working like that.
=> Refraction in real-time is impossible to get right because we cannot trace for real. We always assume a thick surface in real time since we cannot trace and assume anything so far.
=> So artists are thus in charge of the refraction direction and strength. According to selected mode:
- IOR deducted from material specular properties but can be overriden on the root node
- PixelNormal using fake refraction from normal and view
- 2DOffset completely independent from the surface normal, aka you do specify the offset you want).
Simply select the refraction mode that suites you and tweak the Strength and parameters. Documentation for you to read, this is the same with/without Substrate… (2d offset will be added soon to the documentation).
So currently, using IOR mode you thus have to lower the IOR close to 1.0 in order to approximate the fact that this is a thin object.