XRWebGLDepthInformation: texture property

Limited availability

The read-only texture property of the XRWebGLDepthInformation interface is a WebGLTexture containing depth buffer information as an opaque texture.

Value

A WebGLTexture.

Examples

Use getDepthInformation() to obtain GPU depth information. The returned XRWebGLDepthInformation object will contain the texture buffer which can then be bound to a texture and depth buffer information can be made available to a WebGL fragment shader.

const depthInfo = glBinding.getDepthInformation(view);
const uvTransform = depthInfo.normDepthBufferFromNormView.matrix;

const uDepthTextureLocation = gl.getUniformLocation(program, "u_DepthTexture");
const uUVTransformLocation = gl.getUniformLocation(program, "u_UVTransform");
const uRawValueToMeters = gl.getUniformLocation(program, "u_RawValueToMeters");

gl.bindTexture(gl.TEXTURE_2D, depthInfo.texture);
gl.activeTexture(gl.TEXTURE0);
gl.uniform1i(uDepthTextureLocation, 0);

// UV transform to correctly index into the depth map
gl.uniformMatrix4fv(uUVTransformLocation, false, uvTransform);

// scaling factor to convert from the raw number to meters
gl.uniform1f(uRawValueToMeters, depthInfo.rawValueToMeters);

Specifications

Browser compatibility

See also

• getDepthInformation()
• bindTexture()