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i had implementet lightmaps with point lights and now want to test spotlights, but whats the different? i mean in math way of course. with pointlights i used Lambert equation.
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Spotlights
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The brightness due to a point light is only dependent on distance, whereas the brightness due to a spotlight is due to distance as well as the angle between the object, the light, and the direction of the light. Those parameters are further affected by the angles in the spotlight definition (penumbra or umbra or something, I forget).
Those are the only real mathematical differences.
Those are the only real mathematical differences.
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