OVR\_multiview2: framebufferTextureMultiviewOVR() method
========================================================

 The **`OVR_multiview2.framebufferTextureMultiviewOVR()`**
 method of the WebGL API attaches a multiview
 texture to a `WebGLFramebuffer`.

Syntax
------


```js
framebufferTextureMultiviewOVR(target, attachment, texture, level, baseViewIndex, numViews)
```

### Parameters

`target`

A `WebGL_API.Types` specifying the binding point (target). Possible values:

`gl.FRAMEBUFFER`

 Collection buffer data storage of color, alpha,
 depth and stencil buffers used to render an image.


`gl.DRAW_FRAMEBUFFER`

 Equivalent to `gl.FRAMEBUFFER`.
 Used as a destination for drawing, rendering, clearing, and writing operations.


`gl.READ_FRAMEBUFFER`

Used as a source for reading operations.


`attachment`

 A `WebGL_API.Types` specifying the attachment point for the
 `texture`. Possible values:


* `gl.COLOR_ATTACHMENT0`: Attaches the texture to the framebuffer's
 color buffer.
* `gl.DEPTH_ATTACHMENT`: Attaches the texture to the framebuffer's
 depth buffer.
* `gl.STENCIL_ATTACHMENT`: Attaches the texture to the framebuffer's
 stencil buffer.
* `gl.DEPTH_STENCIL_ATTACHMENT`: depth and stencil buffer.
* `gl.COLOR_ATTACHMENT1 gl.COLOR_ATTACHMENT2 gl.COLOR_ATTACHMENT3 gl.COLOR_ATTACHMENT4 gl.COLOR_ATTACHMENT5 gl.COLOR_ATTACHMENT6 gl.COLOR_ATTACHMENT7 gl.COLOR_ATTACHMENT8 gl.COLOR_ATTACHMENT9 gl.COLOR_ATTACHMENT10 gl.COLOR_ATTACHMENT11 gl.COLOR_ATTACHMENT12 gl.COLOR_ATTACHMENT13 gl.COLOR_ATTACHMENT14 gl.COLOR_ATTACHMENT15`
 When using the `WEBGL_draw_buffers` extension:
    + `ext.COLOR_ATTACHMENT0_WEBGL` (same as
     `gl.COLOR_ATTACHMENT0`)
     `ext.COLOR_ATTACHMENT1_WEBGL ext.COLOR_ATTACHMENT2_WEBGL ext.COLOR_ATTACHMENT3_WEBGL ext.COLOR_ATTACHMENT4_WEBGL ext.COLOR_ATTACHMENT5_WEBGL ext.COLOR_ATTACHMENT6_WEBGL ext.COLOR_ATTACHMENT7_WEBGL ext.COLOR_ATTACHMENT8_WEBGL ext.COLOR_ATTACHMENT9_WEBGL ext.COLOR_ATTACHMENT10_WEBGL ext.COLOR_ATTACHMENT11_WEBGL ext.COLOR_ATTACHMENT12_WEBGL ext.COLOR_ATTACHMENT13_WEBGL ext.COLOR_ATTACHMENT14_WEBGL ext.COLOR_ATTACHMENT15_WEBGL`

When using the `WEBGL_depth_texture` extension:

* `ext.DEPTH_STENCIL_ATTACHMENT`: Depth and stencil buffer data
 storage.

`texture`

A `WebGLTexture` object whose image to attach.

`level`

 A `WebGL_API.Types` specifying the mipmap level of the texture image to be
 attached. Must be 0.


`baseViewIndex`

 A `WebGL_API.Types` specifying the base view index of the framebuffer object
 attachment.


`numViews`

 A `WebGL_API.Types` specifying the number of views of the framebuffer object
 attachment.


### Return value

None (`undefined`).

### Exceptions

* A `gl.INVALID_ENUM` error is thrown if
    + `target` is not `gl.FRAMEBUFFER`.
    + `attachment` is not one of the accepted attachment points.
* A `gl.INVALID_VALUE` error is thrown if
    + `level` is not 0.
    + if `numViews` is less than one or more than
     `MAX_VIEWS_OVR`.
* A `gl.INVALID_OPERATION` error is thrown if `texture` isn't 0
 or the name of an existing texture object.
Examples
--------


```js
ext.framebufferTextureMultiviewOVR(
  gl.DRAW\_FRAMEBUFFER,
  gl.COLOR\_ATTACHMENT0,
  colorTex,
  0,
  0,
  2,
);
```

Specifications
--------------

| Specification |
| --- |
| WebGL OVR\_multiview2 Extension Specification  |

Browser compatibility
---------------------

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See also
--------

* `OVR_multiview2`
* `WEBGL_depth_texture`
* `WEBGL_draw_buffers`