czm_sceneMode
An automatic GLSL uniform representing the current SceneMode enumeration, expressed
as a float.
Like all automatic uniforms, czm_sceneMode does not need to be explicitly declared.
However, it can be explicitly declared when a shader is also used by other applications such
as a third-party authoring tool.
Example
// GLSL declaration
uniform float czm_sceneMode;
// Example
if (czm_sceneMode == czm_sceneMode2D)
{
eyeHeightSq = czm_eyeHeight2D.y;
}