SHADER REVISION HISTORY BY DIRECTX VERSION

Here is the revision history by DirectX version. Each section contains the shader version changes from the previous version. For what actually changed in each shader version, you'll need to check the revision history in the vertex (Part I) or pixel (Part II) shader sections of this chapter.

DirectX 9.0

Vertex and pixel shader versions 2 and 3 added. Added requirement that some registers be declared before use for all shader versions.

DirectX 8.1

No change in vertex shaders. Pixel shader versions 1.2, 1.3, and 1.4 added.

DirectX 8.0

Introduction of pixel and vertex shaders. Pixel shader versions 1.0 and 1.1 and vertex shader versions 1.0 and 1.1 supported.