Properties

See full list on docs.unity3d.com.
The Unity Grid or Christ Consciousness is a combination of 2 platonic solid shapes which form a stellated dodecahedron – the dodecahedron (12 five sided facets) and the icosahedrons (20 triangles). These shapes are two out of five shapes known as the Platonic Solids or the Perfect Bodies.

Property:	Function:
Padding	The padding inside the edges of the layout group.
Cell Size	The size to use for each layout element in the group.
Spacing	The spacing between the layout elements.
Start Corner	The corner where the first element is located.
Start Axis	Which primary axis to place elements along. Horizontal will fill an entire row before a new row is started. Vertical will fill an entire column before a new column is started.
Child Alignment	The alignment to use for the layout elements if they don't fill out all the available space.
Constraint	Constraint the grid to a fixed number of rows or columns to aid the auto layout system.

Description

Unlike other layout groups, the Grid Layout Group ignores the minimum, preferred, and flexible size properties of its contained layout elements and instead assigns a fixed size to all of them which is defined with the Cell Size property of the Grid Layout Group itself.

Aug 31, 2013 Hello guys, in this video i show you how to make a 2D array of floats and assign a random value to each index of the array, after that we take the 2D array of floats and draw a grid and assign a random color to it based off its value in the array. Grid is the base class for plotting a layout of uniformly spaced points and lines. The Grid component stores dimensional data of the layout of the grid and provides helper functions to retrieve information about the grid, such as the conversion between the cell location and local space location of items within the grid.

Grid Layout Group and auto layout

There are special considerations to be aware of when using the Grid Layout Group as part of an auto layout setup, such as using it with a Content Size Fitter.

The auto layout system calculates the horizontal and vertical sizes independently. This can be at odds with the Grid Layout Group, where the number of rows depends on the number of columns and vice versa.

For any given number of cells, there are different combinations of row count and column count that can make the grid fit its content. In order to aid the layout system, you can specify that you intent the table to have a fixed number of columns or rows by using the Constraint property.

Here are suggested ways of using the Layout System with a Content Size Fitter:

Flexible width and fixed height

To setup a grid with a flexible width and fixed height, where the grid expands horizontally as more elements are added, you can set these properties as follows:

Grid Layout Group Constraint: Fixed Row Count
Content Size Fitter Horizontal Fit: Preferred Size
Content Size Fitter Vertical Fit: Preferred Size or Unconstrained

If unconstrained Vertical Fit is used, it's up to you to give the grid a height that is big enough to fit the specified row count of cells.

Fixed width and flexible height

To setup a grid with a fixed width and flexible height, where the grid expands vertically as more elements are added, you can set these properties as follows:

Grid Layout Group Constraint: Fixed Column Count
Content Size Fitter Horizontal Fit: Preferred Size or Unconstrained
Content Size Fitter Vertical Fit: Preferred Size

If unconstrained Horizontal Fit is used, it's up to you to give the grid a width that is big enough to fit the specified column count of cells.

Both flexible width and height

If you want a grid with both a flexible width and height you can do that, but you will have no control over the specific number of rows and columns. The grid will attempt to make the row and column count approximately the same. You can set these properties as follows:

Grid Layout Group Constraint: Flexible
Content Size Fitter Horizontal Fit: Preferred Size
Content Size Fitter Vertical Fit: Preferred Size

In this tutorial we'll create a simple grid of vertices and triangles.

This tutorial assumes that you are familiar with the basics of Unity scripting. See Clock for these basics. Constructing a Fractal provides an introduction to coroutines. This tutorial has been made for Unity 5.0.1 and up.

Rendering Things

If you want to visualize something in Unity, you use a mesh. It could be a 3D model exported from another program. It could be a procedurally generated mesh. It could be a sprite, UI element, or particle system, for which Unity uses meshes as well. Even screen effects are rendered with a mesh.

So what is a mesh? Conceptually, a mesh is a construct used by the graphics hardware to draw complex stuff. It contains at least a collection of vertices that define points in 3D space, plus a set of triangles – the most basic 2D shapes – that connect these points. The triangles form the surface of whatever the mesh represents.

Unity Grid Texture

As triangles are flat and have straight edges, they can be used to perfectly visualize flat and straight things, like the faces of a cube. Curved or round surfaces can only be approximated by using many small triangles. If the triangles appear small enough – no larger than a single pixel – then you won't notice the approximation. Typically that's not feasible for realtime performance, so the surfaces will always appear jagged to some degree.

How to show the wireframe?

You can select the display mode of the scene view on the left side of its toolbar. The first three options are Shaded, Wireframe, and Shaded Wireframe.

If you want to have a game object display a 3D model, it needs to have two components. The first is a mesh filter. This component holds a reference to the mesh you wish to show. The second is a mesh renderer. You use it to configure how the mesh is rendered. Which material should be used, whether it should cast or receive shadows, and so on.

Why is there an array of materials?

A mesh renderer can have multiple materials. This is mostly used for rendering meshes that have multiple separate triangle sets, know as submeshes. These are mostly used with imported 3D models and won't be covered in this tutorial.

You can completely change the appearance of a mesh by adjusting its material. Unity's default material is simply solid white. You can replace it with your own by creating a new material asset via Assets / Create / Material and dragging it onto your game object. New materials use Unity's Standard shader by default, which gives you a set of controls to tweak how your surface behaves visually.

A quick way to add lots of detail to your mesh is by providing an albedo map. This is a texture that represents the basic color of a material. Of course we need to know how to project this texture onto the triangles of the mesh. This is done by adding 2D texture coordinates to the vertices. The two dimensions of texture space are referred to as U and V, which is why they're know as UV coordinates. These coordinates typically lie between (0, 0) and (1, 1), which covers the entire texture. Coordinates outside that range are either clamped or cause tiling, depending on the texture settings.

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Creating a Grid of Vertices

So how do you make your own mesh? Let's find out, by generating a simple rectangular grid. The grid will consist of square tiles – quads – of unit length. Create a new C# script and turn it into a grid component that has a horizontal and vertical size.

Do we need `System.Collections`?

We won't need it to generate our mesh. I included it because we'll use a coroutine later.

When we add this componen