The following semantics are recognized and supported for use with shaders in Viewport 2.0. They can be used when authoring full effects which are accessed as MShaderInstance objects using the MShaderManager class. They may also be applied to the parameters of fragments which are registered using MFragmentManager.
| Semantic | Usage | Type | Group |
| World | World transformation | Matrix | Item |
| WorldTranspose | World transformation, transposed | Matrix | Item |
| WorldInverse | World transformation, inverted | Matrix | Item |
| WorldInverseTranspose | World transformation, inverted and transposed | Matrix | Item |
| View | View transformation | Matrix | Frame |
| ViewTranspose | View transformation, transposed | Matrix | Frame |
| ViewInverse | View transformation, inverted | Matrix | Frame |
| ViewInverseTranspose | View transformation, inverted and transposed | Matrix | Frame |
| Projection | Projection transformation | Matrix | Frame |
| ProjectionTranspose | Projection transformation, transposed | Matrix | Frame |
| ProjectionInverse | Projection transformation, inverted | Matrix | Frame |
| ProjectionInverseTranspose | Projection transformation, inverted and transposed | Matrix | Frame |
| WorldView | World-view transformation | Matrix | Item |
| WorldViewTranspose | World-view transformation, transposed | Matrix | Item |
| WorldViewInverse | World-view transformation, inverted | Matrix | Item |
| WorldViewInverseTranspose | World-view transformation, inverted and transposed | Matrix | Item |
| ViewProjection | View-projection transformation | Matrix | Frame |
| ViewProjectionTranspose | View-projection transformation, transposed | Matrix | Frame |
| ViewProjectionInverse | View-projection transformation, inverted | Matrix | Frame |
| ViewProjectionInverseTranspose | View-projection transformation, inverted and transposed | Matrix | Frame |
| WorldViewProjection | World-view-projection transformation | Matrix | Item |
| WorldViewProjectionTranspose | World-view-projection transformation, transposed | Matrix | Item |
| WorldViewProjectionInverse | World-view-projection transformation, inverted | Matrix | Item |
| WorldViewProjectionInverseTranspose | World-view-projection transformation, inverted and transposed | Matrix | Item |
| ViewDirection | World-space direction of the view (camera) | Float3 | Frame |
| ViewPosition | World-space position of the view (camera) | Float3 | Frame |
| LocalViewer | Whether a local or non-local view direction is to be used | bool | Frame |
| ViewportPixelSize | Dimensions of the current viewport in pixels, width and height | Float2 | Frame |
| ClippingPlanes | The coefficients of active clipping planes, one float4 per plane | Float4 Array | Clipping |
| ClippingPlaneCount | The number of active clipping planes | Int | Clipping |
| AlphaTestFunction | The alpha test comparison function 1 = Never 2 = Less 3 = Equal 4 = Less or Equal 5 = Greater 6 = Not Equal 7 = Greater or Equal 8 = Always |
Int | Alpha Test |
| AlphaTestReference | The alpha test reference value, in the range of (0.0, 1.0) | Float | Alpha Test |
| RelativeViewportDimensions | Specifies relative viewport dimensions | Float2 | Frame |