czm_inverseViewRotation3D
An automatic GLSL uniform representing a 3x3 rotation matrix that
transforms vectors from 3D eye coordinates to world coordinates. In 3D mode, this is identical to
czm_inverseViewRotation, but in 2D and Columbus View it represents the inverse view matrix
as if the camera were at an equivalent location in 3D mode. This is useful for lighting
2D and Columbus View in the same way that 3D is lit.
Like all automatic uniforms, czm_inverseViewRotation3D 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 mat3 czm_inverseViewRotation3D; // Example vec4 worldVector = czm_inverseViewRotation3D * eyeVector;