Learn how to create a stunning two-color gradient effect on a THREE.js line with this helpful guide:
Color Gradient for Three.js line
Have you ever wondered how to achieve a multi-stop color gradient along a line in THREE.js? Find out the solution here - attributes may only interpolate across two values, so implementing more stops can be tricky (I attempted three values, but it only worked with the first two).
Here is a simple DIY method for creating color gradients:
Start by building a line geometry with some vertices:
var lineGeometry = new THREE.Geometry();
lineGeometry.vertices.push(
new THREE.Vector3( -10, 0, 0 ),
new THREE.Vector3( -10, 10, 0 )
);
Next, utilize helper functions to make the process easier:
var steps = 0.2;
var phase = 1.5;
var coloredLine = getColoredBufferLine( steps, phase, lineGeometry );
scene.add( coloredLine );
You can view the implementation on jsfiddle: http://jsfiddle.net/jfd58hbm/
The function getColoredBufferLine generates a buffer geometry based on the provided geometry for convenience. It then assigns colors to each vertex by iterating through them and using the helper function
color.set ( makeColorGradient( i, frequency, phase ) );The parameter frequency determines how many color changes occur along the line.
The parameter phase sets the starting color of the spectrum.
A dat.gui has been included so you can experiment with different parameters. If you want to customize the color scheme or repetition, you can modify the makeColorGradient function. For further insights into gradient generation, refer to this resource: .
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