[Grasshopper] How to use Mesh Colours to set colors on a mesh

Grasshopper component EN

2025.09.16

This section explains how to use Mesh Colours to set colors on a mesh.

On the Grasshopper, it is represented by either of the two above.

Table of Contents

Setting colors to a mesh

Mesh Colours can be used to set colors on a mesh.

We will start with the sphere of the mesh shown here.

Components used: (1) Mesh Sphere (2) Color Swatch (3) Mesh Colours

Connect the sphere created in Mesh Sphere to the Mesh Colours(M).

In this case, we input 50 to the R Mesh Sphere(R) and set the radius to 50.

Then, input color information to the Mesh Colours(C).

This time, we create a pink color in the Colour Swatch.

Then, the color is reflected in the mesh as shown here.

Multiple colors can be specified for a mesh.

For simplicity, a triangular mesh is used here.

First, let’s input three colors to the Mesh Colours(C).

Each vertex is now assigned a color.

Now, let’s input two colors to the Mesh Colours(C).

Then, since there are only two colors for three vertices, the same color is assigned to two vertices.

Thus, if there are not enough colors for the number of vertices, the same color is assigned to more than one vertex.

Now let us try to connect four colors that exceed the number of vertices.

Then, the last color entered is not reflected.

In this case, the last color entered, red, is not reflected.

Thus, if the number of colors exceeds the number of vertices, the extra colors will not be reflected.

Gradients can also be specified on a mesh.

This time, we will change the color according to the height of each mesh vertex of the sphere as shown in the previous example.

Components used: (1) Mesh Sphere (2) Deconstruct Mesh ( 3 ) Deconstruct (4) Bounds (5) Deconstruct Domain (6) Gradient (7) Mesh Colours

The sphere mesh created by Mesh Sphere is used to extract the mesh vertices from the Deconstruct Mesh(V).

Then, extract the height values of the points from the Deconstruct(Z).

Then extract the maximum and minimum values of each height number in Bounds.

Then output the maximum and minimum numerical values separately in Deconstruct Domain.

The Deconstruct Domain(S) outputs the minimum value and the Deconstruct Domain(E) outputs the maximum value.

Furthermore, connect the Deconstruct Domain(S) to Gradient(L0), Deconstruct Domain(E) to Gradient(L1), and the Deconstruct(Z) to the Gradient(t).

This creates a gradient whose color changes with height.

Set the gradient according to your own preference.

Finally, connect the Mesh Sphere to the Mesh Colours(M) and the Gradient to the Mesh Colours(C).

As you can see, the gradient can now be set according to the height.

You can also create gradients in this way.

List of Grasshopper articles using Mesh Colours component↓