czm_entireFrustum

An automatic GLSL uniform containing the near distance (x) and the far distance (y) of the frustum defined by the camera. This is the largest possible frustum, not an individual frustum used for multi-frustum rendering.

Example

// GLSL declaration
uniform vec2 czm_entireFrustum;

// Example
float frustumLength = czm_entireFrustum.y - czm_entireFrustum.x;

See:

• uniformState#entireFrustum
• czm_currentFrustum

Source:

• aticUniforms.js