What is the best way to send an array of vec3 information to a vertex shader in ThreeJS?
air_parcel_pos: {
type: "???",
value: the data array
}
What is the best way to send an array of vec3 information to a vertex shader in ThreeJS?
air_parcel_pos: {
type: "???",
value: the data array
}
To initialize a uniform variable as an array of values in GLSL, the initialization value must correspond to the GLSL data type.
For example,
If the uniform variable is an array of vec3
uniform vec3 u_array[3];
then the initialization value can be an array of THREE.Vector3
var uniforms = {
u_array: {value: [
new THREE.Vector3(1, 0, 0),
new THREE.Vector3(0, 1, 0),
new THREE.Vector3(0, 0, 1)
] }
};
var material = new THREE.ShaderMaterial({
uniforms: uniforms,
vertexShader: // ...
fragmentShader: // ...
});
Other supported data types include Vector2, Vector4, or Color. An array of float or int can be initialized using an array of values.
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