Update for SM 6.8 release (#172)

- Remove (experimental)
- Remove Wave Matrix from SM 6.8 doc
- Add Expanded Comparison Sampling
- Add Extended Command Info
- Add Wave Size Range
- Replace SM_6_8 with SM_6_x for WaveMatrix doc name to avoid implication that it's part of SM 6.8

README.md

@@ -59,7 +59,7 @@ Make sure that you visit the [DirectX Landing Page](https://devblogs.microsoft.c
     * [Shader Model 6.5](d3d/HLSL_ShaderModel6_5.md)
     * [Shader Model 6.6](d3d/HLSL_ShaderModel6_6.md)
     * [Shader Model 6.7](d3d/HLSL_ShaderModel6_7.md)
-    * [Shader Model 6.8 (experimental)](d3d/HLSL_ShaderModel6_8.md)
+    * [Shader Model 6.8](d3d/HLSL_ShaderModel6_8.md)
     * [SV_Barycentrics](https://github.com/microsoft/DirectXShaderCompiler/wiki/SV_Barycentrics)
     * [SV_ViewID](https://github.com/microsoft/DirectXShaderCompiler/wiki/SV_ViewID)
 

d3d/HLSL_ShaderModel6_8.md

@@ -1,35 +1,53 @@
 <h1>HLSL Shader Model 6.8</h1>
 
-v0.5 2023-06-21
+v0.6 2024-03-11
 
-<h2> Contents</h2>
+<h2>Contents</h2>
 
 - [Introduction](#introduction)
-- [Work Graphs (experimental)](#work-graphs-experimental)
-- [Wave Matrix (experimental)](#wave-matrix-experimental)
+- [Work Graphs](#work-graphs)
+- [Expanded Comparison Sampling](#expanded-comparison-sampling)
+- [Extended Command Information](#extended-command-information)
+- [Wave Size Range](#wave-size-range)
 - [Change Log](#change-log)
 
-# Introduction
+## Introduction
 
 This document covers the new Shader Model 6.8.  A brief summary of each new feature
 is listed below along with links to detailed specifications.
 
-# Work Graphs (experimental)
+## Work Graphs
 
 Work Graphs define a system of shader nodes that feed into each other
 to enable tailored GPU work creation.
 
-See the [Work Graphs (experimental)](WorkGraphs.md) documentation for more details.
+See the [Work Graphs](WorkGraphs.md) documentation for more details.
 
-# Wave Matrix (experimental)
+## Expanded Comparison Sampling
 
-Wave Matrices are type abstractions of hardware support
-for higher bandwidth matrix multiplications, useful
-in machine learning and image processing.
+Several existing operations have been expanded to support Comparison Samplers.
+New methods: `SampleCmpBias`, `SampleCmpGrad`.
+Added overloads: `CalculateLevelOfDetail`, `CalculateLevelOfDetailUnclamped`.
 
-See the [Wave Matrix (experimental)](HLSL_SM_6_8_WaveMatrix.md) documentation for more details about this feature, also called Wave Matrix Multiply and Accumulate or WaveMMA for short.
+See the [Expanded Comparison Sampling](https://microsoft.github.io/hlsl-specs/proposals/0014-expanded-comparison-sampling.html) documentation for more details.
 
-# Change Log
+## Extended Command Information
+
+Two new system-value semantics are required to be supported in HLSL shader model 6.8:
+
+- `SV_StartVertexLocation` - Reports `StartVertexLocation` from `DrawInstanced()` or `BaseVertexLocation` from `DrawIndexedInstanced()` to a vertex shader.
+- `SV_StartInstanceLocation` - Reports `StartInstanceLocation` From `Draw*Instanced` to a vertex shader.
+
+See the [Extended Command Information](https://microsoft.github.io/hlsl-specs/proposals/0015-extended-command-info.html) documentation for more details.
+
+## Wave Size Range
+
+A new variant of the [WaveSize](HLSL_SM_6_6_WaveSize.md) attribute is added: `[WaveSize( min, max [, preferred] )]`.
+This allows you to specify a range and optional preferred size.
+
+See the [Wave Size Range](https://microsoft.github.io/hlsl-specs/proposals/0013-wave-size-range.html) documentation for more details.
+
+## Change Log
 
 Version|Date|Description
 -|-|-
@@ -38,3 +56,4 @@ Version|Date|Description
 0.3| 24 Aug 2022|Add WaveMMA spec link
 0.4| 01 May 2023|Update included elements
 0.5| 21 Jun 2023|Update for preview release
+0.6| 11 Mar 2024|Remove WaveMMA; remove experimental; add Expanded Comparison Sampling, Extended Command Information, and Wave Size Range