ndcdepth

Since	18.0

float  ndcdepth(float z)

When Karma converts a position to NDC space, the z depth value is

transformed based on the render camera projection and clipping planes. This function converts the NDC z-depth into the camera space. That is, the distance down the z-axis in the space of the camera.

function returns the argument passed in. Examples

examples

vector ndc = ptransform("space:ndc", P);
float pz_camera = ndcspace(ndc.z);

// This value can also be computed using
float pz_camera = -ptransform("space:camera", P).z;