ScrDist ( float) – Distance to the screen from the view in meters. ScrAspect ( float) – Aspect ratio of the display (width / height).
ScrWidth ( float) – The display’s width in meters. If an eye offset is provided, an asymmetricįrustum is returned which can be used for stereoscopic rendering. computeFrustum ( scrWidth, scrAspect, scrDist, convergeOffset = 0.0, eyeOffset = 0.0, nearClip = 0.01, farClip = 100.0, dtype = None ) ¶Ĭalculate frustum parameters. Va = visualAngle ( 0.20, ) # returns #. If out is not provided,Ĭalculating the visual angle (vertical FOV) of a monitor screen: Specified, the data type is inferred by out. Must be same shape and dtype as the expectedĭtype ( dtype or str, optional) – Data type for arrays, can either be ‘float32’ or ‘float64’. Out ( ndarray, optional) – Optional output array. Size ( float or array_like) – Size of the object in meters.ĭistance ( float or array_like) – Distance to the object in meters.ĭegrees ( bool) – Return result in degrees, if False result will be in radians. If both inputs are arrays, they must have the Values for size and distance canīe arrays or single values. Object isĪssumed to be fronto-parallel with the viewer. Get the visual angle for an object of size at distance. visualAngle ( size, distance, degrees = True, out = None, dtype = None ) ¶ Map the position of a point in world space to normalized device coordinates/space.ĬursorToRay(cursorX, cursorY, winSize, …)Ĭonvert a 2D mouse coordinate to a 3D ray.ĭetails ¶. PointToNdc(wcsPos, viewMatrix, projectionMatrix) LookAt(eyePos, centerPos)Ĭreate a transformation matrix to orient a view towards some point. PerspectiveProjectionMatrix(left, right, …)Ĭompute an perspective projection matrix with provided frustum parameters. OrthoProjectionMatrix(left, right, bottom, top)Ĭompute an orthographic projection matrix with provided frustum parameters. Generalized derivation of projection and view matrices based on the physical configuration of the display system. Project a frustum on a fronto-parallel plane and get the coordinates of the corners in physical space.
Project a frustum on a fronto-parallel plane and get the width and height of the required drawing area. Get the visual angle for an object of size at distance.ĬomputeFrustum(scrWidth, scrAspect, scrDist)ĬomputeFrustumFOV(scrFOV, scrAspect, scrDist)Ĭompute a frustum for a given field-of-view (FOV).
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