Paradox3D - World Objects Selection

Published: 15 November 2023
on channel: The Old School Coder

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The first steps to level editor.

It renders each 3D model (object) to a backbuffer with a specific, predefined color based on a unique id.
On mouse click it takes the X,Y coordinates of the mouse and picks the color of the pixel at this location of the viewport.
The color at the given coordinate is matched against the objects.
Whichever object matches the color of the pixel at the mouse position - it is the one selected by the user.

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