WebGLRenderingContext.vertexAttrib[1234]f[v]()

 WebGLRenderingContext.vertexAttrib[1234]f[v]() 是 WebGL API 的方法，可以为顶点attibute变量赋值。

void gl.vertexAttrib1f(index, v0);
void gl.vertexAttrib2f(index, v0, v1);
void gl.vertexAttrib3f(index, v0, v1, v2);
void gl.vertexAttrib4f(index, v0, v1, v2, v3);

void gl.vertexAttrib1fv(index, value);
void gl.vertexAttrib2fv(index, value);
void gl.vertexAttrib3fv(index, value);
void gl.vertexAttrib4fv(index, value);

index

 GLuint 类型，指定了待修改顶点attribute变量的存储位置。

v0, v1, v2, v3

浮点数类型Number，用于设置顶点attibute变量的各分量值。

value

Float32Array 类型，用于设置顶点attibute变量的向量值。

无。

const a_foobar = gl.getAttribLocation(shaderProgram, 'foobar');
//either set each component individually:
gl.vertexAttrib3f(a_foobar, 10.0, 5.0, 2.0);
//or provide a Float32Array:
const floatArray = new Float32Array([10.0, 5.0, 2.0]);
gl.vertexAttrib3fv(a_foobar, floatArray);

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

• WebGLRenderingContext.getVertexAttrib()