Function nanogui::unproject

• Defined in File glutil.h

Function Documentation

Vector3f nanogui::unproject(const Vector3f &win, const Matrix4f &model, const Matrix4f &proj, const Vector2i &viewportSize)

Unprojects the vector win out of the specified viewport.

The reverse transformation of project use the same matrices and viewport dimensions to easily transition between the two spaces.

Parameters

• win: The vector being transformed out of “screen space”.

• model: The model matrix.

• proj: The projection matrix.

• viewportSize: The dimensions of the viewport to project out of.