Materials that write to Depth PrePass also write to a G-Buffer, if you are using the standard ShadingModel, you just have to make sure you have a Depth(); mode enabled

It contains minimal information about the object before we do the lighting pass, like it's Normals and Roughness, it can be used in post-processing to do all sorts of effects like accurate Ambient Occlusion and Screen-Space Reflections

You can sample the G-Buffer in any shader with

float3 Normals::Sample( int2 ScreenPosition )

float3 Roughness::Sample( int2 ScreenPosition )

If the object in that texel does not write to the G-buffer, then it reconstructs normal maps from it