Shadow Map VEX node
Shadow Map treats the depth map as if the image were rendered from a light source.
Shadow Map treats the depth map as if the image were rendered from a light source. The Ps parameter represents the position of the point being shaded in the space of the light’s projection. The spread is a softness control on the shadow, while the bias controls how accurate the depth samples need to be. The quality is a general control to increase/decrease sampling. A quality of 1 is typical quality.
The fractional amount of illumination which reaches the sample point will be returned. For example, if the point is fully in shadow, the return value will be 0, if it is fully illuminated, the return value will be 1.
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