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VideoOverlay

Namespace: DISP3DLIB  ·  Library: 3D Display Library

#include <disp3D/videooverlay.h>

class DISP3DLIB::VideoOverlay

Camera-facing textured quad rendered at a focus point in the 3-D scene.

The overlay displays any live RGB/video frame "as a small cut-out view" on top of the 3-D scene. It is a billboarded square positioned at focusPosition with side length sizeMeters, textured with the latest video frame.

This class is a passive data holder: BrainRenderer owns the GPU resources (vertex buffer, texture, sampler, pipeline) and reads from here each frame.

Public Methods​

VideoOverlay()​

isEnabled()​

setEnabled(enabled)​

focusPosition()​

Returns:

  • QVector3D — World-space centre of the overlay quad (metres).

setFocusPosition(pos)​

sizeMeters()​

Returns:

  • float — Side length of the overlay quad (metres).

setSizeMeters(size)​

frame()​

Returns:

  • const QImage & — Latest video frame (CPU-side). Empty until a frame arrives.

hasFrame()​

setFrame(image)​

Push a new video frame; bumps the generation counter so the GPU re-uploads.

frameGeneration()​

Monotonic counter, incremented on every setFrame() call.

opacity()​

Returns:

  • float — Overall opacity of the overlay [0..1].

setOpacity(opacity)​

Authors of this file​