@Rei: You can create hard normals directly in the pixel shader like so: float3 hard_normal = normalize(cross(ddx(wPos),ddy(wPos))); You only need to pass the world position in the pixel shader. This should work fine for your case.

Hummel, today I really considered to use normals derived by the same exact method you mentioned instead of sampling the gouraud shaded ones, but as you already said, this leads to hard normals. But if I tweak the blur, it could work for the upscaling.

Question: if I bilinearily downsample the depth image and create worldspace normals from the downsampled perpixel depth values, do I get the same normals if I would have create the perpixel normals from the hires depth values which I would then have downsampled, too???

That would be great, because I could save lots of memory then (and processing time, pushing it down the very long throat of your videocard... gag!).

Nevertheless...

This doesn't work with my solution at the moment, because I don't offer the opportunity to deliver a custom normal map of the view

If you would re-normalize the downsampled normals they should be the same you would get when creating them from downsampled depth values. But I´m not 100% sure. It´s worth a try at least. But consider, in a post-processing step you´ll get wrong normals along 'sharp' edges if you dont handle that case separatly.

I know. For that I already use my upsampling stage. If the derivatives over my downsampled depths are producing correct normals as if I would have downsampled the correct normals from hires, I should get visually the same image then.

Hi, I wanted to ask if anyone is using my SSAO solution with an A7 project? Because I intend to drop A7 support.

Regards,
-Christian