A billboard is a flat 2D object embedded in the 3D world, but has the additional property that it is always facing the camera. No matter how the camera moves or rotates, the billboard will always face the camera to some extent.
In this tutorial we implement a second rendering system that uses this billboard technique to render a spherical point light.
A billboard is a flat 2D object embedded in the 3D world, but has the additional property that it is always facing the camera. No matter how the camera moves or rotates, the billboard will always face the camera to some extent.
In this tutorial we implement a second rendering system that uses this billboard technique to render a spherical point light.
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