Archive for the ‘ICE’ Category

As I’m sure you know, XSI (and almost all 3D/graphics programs) mix colour in an addative RGB(A) manner. This is reasonably obvious and straight forward for most of the time, but when I was playing around with the Add Colour nodes I’ve blogged about previously I happened on something slightly off: The idea of this [...]

My previous ‘Add Colour on Distance’ node for playing with particle colour had something of a limitation in that it could only be used once in an ICE Tree – trying to use multiple colour inputs just wouldn’t work. This is due to the fact that it uses a ‘Set Particle Colour’ node in the [...]

For this I’ll be using a little bit of vector maths to ‘slice’ thorugh the point cloud, deleting any particles heading for the camera, for example to create a disc effect around a spherical emitter. We can get the direction vector of the camera by subtracting the interest’s global position by it’s own. Nicely there’s [...]

As well as being a rather nifty effects-device, ICE also has a lot to offer as a tool for rigging, particularly for those more inclinded to the art side of things. It offers a visual apporach to scripting compared to more traditional operators or expressions. Being able to drag in object and riffle through their [...]

As part of a personal project I’ve got going at the moment I’ve been playing around with particle colours in ICE. The most obvious way of doing this is with the Modify Colour node. It’s pretty easy to link this up with the age percentage to get a nice gradation in hue: Now this is [...]