Editing Fast Fur Render Pipeline options (section)

== Super Pipeline (Fastest, capable of extremely high resolution, but not usable on some AMD GPUs) ==
[[File:Super Pipeline.jpg|none|thumb|The Super Pipeline uses fast Hull + Domain shaders to make the fur layers.]]
The Super Pipeline is NOT available for public use, due to AMD crashing issues. It is not a selectable option in release versions of the shader.

The Super Pipeline is typically 30% faster than the Turbo Pipeline when rendering at the same quality (ie. up to 32 layers), but it can also produce pixel-perfect screenshots with no visible gaps in the hairs. It can render up to 264(!) layers of fur.

The Super Pipeline's speed and resolution comes from using the Hull + Domain shaders to make only as many copies of each triangle as-needed (note: this is not tesselation, since it is only making copies of the triangles, not sub-dividing them). This means that un-needed triangles do not need to be discarded, because they are never created in the first place.

Since the Super Pipeline doesn't need to discard triangles, there is no performance hit for having a higher layer limit. The Super Pipeline will, however, limit its maximum layers dynamically, according to the quality settings.

Offloading most of the triangle copying workload to the Hull + Domain shaders from the much slower Geometry shaders gives the Super Pipeline a big performance boost. Unfortunately, it also runs afoul of AMD driver bugs with some of their GPUs. The Vega 64, 6600xt, 6700xt, and 6800xt have all been confirmed to crash (no Intel or Nvidia GPUs have been reported to crash). The Vega 64 crash was found to be due to a driver bug with nested arrays, which was fixed by modifying the shader code to access the arrays using a different method. However, the other AMD GPUs appear to be crashing due to memory corruption, which is not fixable by modifying the shader code. Unlike the Turbo Pipeline, the Super Pipeline's Domain shaders copy and modify the data coming from the Hull shaders before sending it to the Geometry shaders. The task of reserving and managing memory for these copies is handled by the GPU drivers, and this is where the AMD driver bugs seem to strike. Typically these GPUs will lockup after about ~10 seconds.

Until driver support can be confirmed to be reliable on '''all''' GPUs, the Super Pipeline will not be available publicly. It currently only exists as an experimental Beta version.

'''''The Super Pipeline must NEVER be used in public games!'''''