---
title: copyBufferSubData
framework: webkitjs
role: symbol
role_heading: Instance Method
path: webkitjs/webgl2renderingcontext/1633065-copybuffersubdata
---

# copyBufferSubData

## Declaration

```data
void copyBufferSubData(
    GLenum readTarget, 
    GLenum writeTarget, 
    GLintptr readOffset, 
    GLintptr writeOffset, 
    GLsizeiptr size
);
```