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FF132 Add webgl2rendering unpackColorSpace #36257

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Original file line number Diff line number Diff line change
@@ -0,0 +1,46 @@
---
title: "WebGL2RenderingContext: drawingBufferColorSpace property"
short-title: drawingBufferColorSpace
slug: Web/API/WebGL2RenderingContext/drawingBufferColorSpace
page-type: web-api-instance-property
browser-compat: api.WebGL2RenderingContext.drawingBufferColorSpace
---

{{APIRef("WebGL")}}{{AvailableInWorkers}}

The **`WebGL2RenderingContext.drawingBufferColorSpace`** property specifies the color space of the WebGL drawing buffer. Along with the default (`srgb`), the `display-p3` color space can be used.

See [`WebGL2RenderingContext.unpackColorSpace`](/en-US/docs/Web/API/WebGL2RenderingContext/unpackColorSpace) for specifying the color space for textures.

## Value

This property can have the following values:

- `"srgb"` selects the [sRGB color space](https://en.wikipedia.org/wiki/SRGB). This is the default value.
- `"display-p3"` selects the [display-p3 color space](https://en.wikipedia.org/wiki/DCI-P3).

If an invalid value is specified, then the value of `drawingBufferColorSpace` will remain unchanged.

## Examples

### Setting the drawing buffer color space to draw a Display P3 red

```js
const canvas = document.getElementById("canvas");
const gl = canvas.getContext("webgl");
gl.drawingBufferColorSpace = "display-p3";
gl.clearColor(1, 0, 0, 1);
gl.clear(gl.COLOR_BUFFER_BIT);
```

## Specifications

{{Specifications}}

## Browser compatibility

{{Compat}}

## See also

- [`WebGL2RenderingContext.unpackColorSpace`](/en-US/docs/Web/API/WebGLRenderingContext/unpackColorSpace)
7 changes: 7 additions & 0 deletions files/en-us/web/api/webgl2renderingcontext/index.md
Original file line number Diff line number Diff line change
Expand Up @@ -94,6 +94,13 @@ See the [WebGL constants](/en-US/docs/Web/API/WebGL_API/Constants) page.
- {{domxref("WebGL2RenderingContext.vertexAttribIPointer()")}}
- : Specifies integer data formats and locations of vertex attributes in a vertex attributes array.

## Color spaces

- {{domxref("WebGL2RenderingContext.drawingBufferColorSpace")}}
- : Specifies the color space of the WebGL drawing buffer.
- {{domxref("WebGL2RenderingContext.unpackColorSpace")}}
- : Specifies the color space to convert to when importing textures.

## Drawing buffers

- {{domxref("WebGL2RenderingContext.vertexAttribDivisor()")}}
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Original file line number Diff line number Diff line change
@@ -0,0 +1,78 @@
---
title: "WebGL2RenderingContext: unpackColorSpace property"
short-title: unpackColorSpace
slug: Web/API/WebGL2RenderingContext/unpackColorSpace
page-type: web-api-instance-property
status:
- experimental
browser-compat: api.WebGL2RenderingContext.unpackColorSpace
---

{{APIRef("WebGL")}}{{SeeCompatTable}}{{AvailableInWorkers}}

The **`WebGL2RenderingContext.unpackColorSpace`** property specifies the color space to convert to when importing textures. Along with the default (`srgb`), the `display-p3` color space can be used.

Texture image sources can be the following:

- [`ImageBitmap`](/en-US/docs/Web/API/ImageBitmap)
- [`ImageData`](/en-US/docs/Web/API/ImageData)
- [`HTMLImageElement`](/en-US/docs/Web/API/HTMLImageElement)
- [`HTMLCanvasElement`](/en-US/docs/Web/API/HTMLCanvasElement)
- [`HTMLVideoElement`](/en-US/docs/Web/API/HTMLVideoElement)
- [`OffscreenCanvas`](/en-US/docs/Web/API/OffscreenCanvas)
- [`VideoFrame`](/en-US/docs/Web/API/VideoFrame)

Textures are imported using the [`WebGL2RenderingContext.texImage2D()`](/en-US/docs/Web/API/WebGL2RenderingContext/texImage2D) and [`WebGL2RenderingContext.texSubImage2D()`](/en-US/docs/Web/API/WebGL2RenderingContext/texSubImage2D) methods and conversion to the specified `unpackColorSpace` color space happens during import.

Note that this doesn't apply to [`HTMLImageElement`](/en-US/docs/Web/API/HTMLImageElement) when the `UNPACK_COLORSPACE_CONVERSION_WEBGL` pixel storage parameter is set to `NONE`.

## Value

This property can have the following values:

- `"srgb"` selects the [sRGB color space](https://en.wikipedia.org/wiki/SRGB). This is the default value.
- `"display-p3"` selects the [display-p3 color space](https://en.wikipedia.org/wiki/DCI-P3).

If an invalid value is specified, then the value of `unpackColorSpace` will remain unchanged.

## Examples

### Converting sRGB ImageData to display-p3 in a texture

```js
const canvas = document.getElementById("canvas");
const gl = canvas.getContext("webgl");

gl.drawingBufferColorSpace = "display-p3";
gl.unpackColorSpace = "display-p3";

// Some sRGB ImageData
// Will be converted from sRGB to Display P3
const imageData = new ImageData(data, 32, 32);

const tex = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, tex);
gl.texImage2D(
gl.TEXTURE_2D,
0,
gl.RGBA,
width,
height,
0,
gl.RGBA,
gl.UNSIGNED_BYTE,
imageData,
);
```

## Specifications

{{Specifications}}

## Browser compatibility

{{Compat}}

## See also

- [`WebGL2RenderingContext.drawingBufferColorSpace`](/en-US/docs/Web/API/WebGL2RenderingContext/drawingBufferColorSpace)
Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,7 @@ Texture image sources can be the following:
- [`OffscreenCanvas`](/en-US/docs/Web/API/OffscreenCanvas)
- [`VideoFrame`](/en-US/docs/Web/API/VideoFrame)

Textures are imported using the [`WebGLRenderingContext.texImage2D()`](/en-US/docs/Web/API/WebGLRenderingContext/texImage2D) and [`WebGLRenderingContext.texSubImage2D()`](/en-US/docs/Web/API/WebGLRenderingContext/texSubImage2D) methods and conversion to the specified `unpackColorSpace` color space happens during import.
Textures are imported using the [`WebGL2RenderingContext.texImage2D()`](/en-US/docs/Web/API/WebGLRenderingContext/texImage2D) and [`WebGL2RenderingContext.texSubImage2D()`](/en-US/docs/Web/API/WebGLRenderingContext/texSubImage2D) methods and conversion to the specified `unpackColorSpace` color space happens during import.

Note that this doesn't apply to [`HTMLImageElement`](/en-US/docs/Web/API/HTMLImageElement) when the `UNPACK_COLORSPACE_CONVERSION_WEBGL` pixel storage parameter is set to `NONE`.

Expand Down