Array Attribute

An Array Attribute is an Attribute with multiple elements of a specific Attribute Data Type, for example an attribute made of 12 intergers. This enables POPs to hold more complex data.

The possible Attribute Data Types include single-value float (32-bit), integer, unsigned integer (uint), double(-precision float), or 2- 3- or 4-component vectors like float2, float3, float4, int2, mat33 and mat44 matrices, and others.

How to create array attributes -

• In an Attribute POP, on the Create page, under New Attribute, give it a name (MonthTempC), a Type (float), a Size (1, a single number and not a vector)), turn on the Array toggle and specify the number of elements (12). That shows up in the popup help and the node viewer as MonthTempC[12] - 12 floating point numbers, with a default value of 0.
• DAT to POP will create an array of the column heading is a nane in the form MyArrayAttribute[3] and will collect similarly-named columns into one array attribute.

How to initialize values in Array Attributes - Alternately you can create one to four elements at a time in each Combine block in Math Mix, where Operation is A, A is any number and the output is MonthlyTempC[0], then MonthlyTempC[1], etc. (You can do 4 values for A per block.)

How to do math on Array Attributes - Aside from operating on array attributes in GLSL POPs, the Math Mix and Combine POPs surrently operate on one element per block (not looped)

A fufure build will offer more powerful creation and manipulation of Array Attributes.

An Array Attribute is an Attribute with multiple elements of a specific Attribute Data Type, for example an attribute made of 12 intergers.

Attributes make up the numeric data blocks of POPs. Each POPs has three blocks of data: a Point List which includes the P point Position attribute, a Primitive List and a Vertex List, and each are made of any number of attributes.

An Operator Family that manipulates text strings: multi-line text or tables. Multi-line text is often a python Script or GLSL Shader, but can be any multi-line text. Tables are rows and columns of cells, each containing a text string.

POPs (Point Operators) is a new Operator Family that works with 3D geometry or any general numeric data, runs on GPU-accelerated graphics cards or chips, is rendered as images or passed to devices like DMX lighting, LED arrays, lasers or other external systems.