## Fusion tip: Fix 3d viewport clipping

With large objects in Fusions 3d viewport up the far plane distance to stop the camera clipping dropping polygons . # Setting Global PathMaps in Fusion.

Setting pathmaps is my top tip if you work with Fusion on different computers. Often drive letters or working folder names will change so when you open a Fusion .comp on a different machine all the loaders fail and you have to reconnect then. Using Fusion pathmaps stops this happening and saves a lot of time.

## Dust and Scratches tutorial

This in depth tutorial shows how to create a film damage effect using procedural dust and scratches in eyeon Fusion.

## Scripting Tip: Useful equation to blend between two values.

This is a simple but very useful equation to blend between two values A and B.

( A * w ) + ( B * ( 1 – w ) )

w is a weight value. When w = 0 the answer is B,
and when w = 1 the answer is A.

( A * 0 ) + ( B * ( 1 – 0 ) ) = A
( A * 1 ) + ( B * ( 1 – 1 ) ) = B

This equation is used all over computer graphics. It the basis of compositing pixels, and can be used to make controls for technical animation ( see this eye rig setup for 3dsMax )

## Tutorial: Using the maths as an expression in Eyeon fusion.

In this tutorial I use an expression script to animate a blend between two changing positions. This allows the creation of a new point based on the current position of two other points.