czm_modelView

An automatic GLSL uniform representing a 4x4 model-view transformation matrix that transforms model coordinates to eye coordinates.

Positions should be transformed to eye coordinates using czm_modelView and normals should be transformed using czm_normal.

Like all automatic uniforms, czm_modelView 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.

// GLSL declaration
uniform mat4 czm_modelView;

// Example
vec4 eyePosition = czm_modelView * modelPosition;

// The above is equivalent to, but more efficient than:
vec4 eyePosition = czm_view * czm_model * modelPosition;