WebGL2RenderingContext.uniform[1234][uif][v]()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2021.

实验性: 这是一项实验性技术
在将其用于生产之前，请仔细检查浏览器兼容性表格。

WebGL API的**WebGL2RenderingContext.uniform[1234][uif][v]()** 方法提供了 uniform（es）变量的详细值

备注： ui 意为无符号整数, i 意为整数，f 意为浮点数, 并且 v 意为矢量。 并不是所有的组合都是有效的：u 不能是 f的组合。详见下方语法表格。用正则表达式概括语法：uniform[1234](u?i|f)v?

语法

uniform1ui(location, v0)
uniform2ui(location, v0, v1)
uniform3ui(location, v0, v1, v2)
uniform4ui(location, v0, v1, v2, v3)

uniform1fv(location, data)
uniform1fv(location, data, srcOffset)
uniform1fv(location, data, srcOffset, srcLength)

uniform2fv(location, data)
uniform2fv(location, data, srcOffset)
uniform2fv(location, data, srcOffset, srcLength)

uniform3fv(location, data)
uniform3fv(location, data, srcOffset)
uniform3fv(location, data, srcOffset, srcLength)

uniform4fv(location, data)
uniform4fv(location, data, srcOffset)
uniform4fv(location, data, srcOffset, srcLength)

uniform1iv(location, data)
uniform1iv(location, data, srcOffset)
uniform1iv(location, data, srcOffset, srcLength)

uniform2iv(location, data)
uniform2iv(location, data, srcOffset)
uniform2iv(location, data, srcOffset, srcLength)

uniform3iv(location, data)
uniform3iv(location, data, srcOffset)
uniform3iv(location, data, srcOffset, srcLength)

uniform4iv(location, data)
uniform4iv(location, data, srcOffset)
uniform4iv(location, data, srcOffset, srcLength)

uniform1uiv(location, data)
uniform1uiv(location, data, srcOffset)
uniform1uiv(location, data, srcOffset, srcLength)

uniform2uiv(location, data)
uniform2uiv(location, data, srcOffset)
uniform2uiv(location, data, srcOffset, srcLength)

uniform3uiv(location, data)
uniform3uiv(location, data, srcOffset)
uniform3uiv(location, data, srcOffset, srcLength)

uniform4uiv(location, data)
uniform4uiv(location, data, srcOffset)
uniform4uiv(location, data, srcOffset, srcLength)

参数

location

一个 WebGLUniformLocation 对象包含了本地 uniform 属性的修改。

value, v0, v1, v2, v3

一个新的值被应用到 uniform 变量当中。合理情况：

Number 如果是无符号整数值 (则用 ui方法),如果是整数值 (则用 i方法), 如果是浮点数 (则用f方法).
Uint32Array 用于无符号整数向量（矢量）方法 (则用uiv方法).

返回值

没有返回值

规范

Specification
WebGL 2.0 Specification # 3.7.8

浏览器兼容性

BCD tables only load in the browser

详见

WebGLRenderingContext.uniform()