XRRenderState.inlineVerticalFieldOfView - Web APIs
the inlineverticalfieldofview read-only property of the xrrenderstate interface defines the angle of the field of view in radians used when computing projection matrices for "inline" xrsession objects.
... syntax var adouble = xrrenderstate.inlineverticalfieldofview; value a number.
... specifications specification status comment unknownthe definition of 'xrrenderstate.inlineverticalfieldofview' in that specification.

XRRenderState.inlineVerticalFieldOfView - Web APIs
the read-only inlineverticalfieldofview property of the xrrenderstate interface returns the default vertical field of view for "inline" sessions and null for all immersive sessions.
... syntax var inlineverticalfieldofview = xrrenderstate.inlineverticalfieldofview; value a number for "inline" sessions, which represents the default field of view, and null for immersive sessions.
... specifications specification status comment webxr device apithe definition of 'xrrenderstate.inlineverticalfieldofview' in that specification.

WebGL model view projection - Web APIs
mdn.perspectivematrix = function(fieldofviewinradians, aspectratio, near, far) { var f = 1.0 / math.tan(fieldofviewinradians / 2); var rangeinv = 1 / (near - far); return [ f / aspectratio, 0, 0, 0, 0, f, 0, 0, 0, 0, (near + far) * rangeinv, -1, 0, 0, near * far * rangeinv * 2, 0 ]; } the four parameters into thi...
...s function are: fieldofviewinradians an angle, given in radians, indicating how much of the scene is visible to the viewer at once.
... cubedemo.prototype.computeperspectivematrix = function() { var fieldofviewinradians = math.pi * 0.5; var aspectratio = window.innerwidth / window.innerheight; var nearclippingplanedistance = 1; var farclippingplanedistance = 50; this.transforms.projection = mdn.perspectivematrix( fieldofviewinradians, aspectratio, nearclippingplanedistance, farclippingplanedistance ); }; the shader code is identical to the previous example: gl_position = pr...

Adding 2D content to a WebGL context - Web APIs
const fieldofview = 45 * math.pi / 180; // in radians const aspect = gl.canvas.clientwidth / gl.canvas.clientheight; const znear = 0.1; const zfar = 100.0; const projectionmatrix = mat4.create(); // note: glmatrix.js always has the first argument // as the destination to receive the result.
... mat4.perspective(projectionmatrix, fieldofview, aspect, znear, zfar); // set the drawing position to the "identity" point, which is // the center of the scene.

XRSession.updateRenderState() - Web APIs
inlineverticalfieldofview optional a floating-point value indicating the default field of view, in radians, to be used when computing the projection matrix for an inline xrsession.
... the inlineverticalfieldofview property was set, but the session is immersive and therefore does not allow this property to be used.

WebVR — Virtual Reality for the Web - Game development
for example: function setcustomfov(up,right,down,left) { var testfov = new vrfieldofview(up,right,down,left); ghmd.setfieldofview(testfov,testfov,0.01,10000.0); } the gpositionsensor variable holds the positionsensorvrdevice — using this you can get the current position or orientation state (for example to update the scene view on every frame), or reset the sensor.

Index - Web APIs
5258 xrrenderstate.inlineverticalfieldofview 'augmented reality, api, ar, experimental, interface, reference, vr, virtual reality, webxr, webxr device api, xrrenderstate, inlineverticalfieldofview the inlineverticalfieldofview read-only property of the xrrenderstate interface defines the angle of the field of view in radians used when computing projection matrices for "inline" xrsession objects.

XRRenderState - Web APIs
inlineverticalfieldofview read only the default vertical field of view, defined in radians, to use when the session is in inline mode.

XRRenderStateInit - Web APIs
inlineverticalfieldofview optional a floating-point value indicating the default field of view, in radians, to be used when computing the projection matrix for an inline xrsession.