# createTangentSpaceDebugPrimitive

Scene/createTangentSpaceDebugPrimitive.js 32
Creates a `Primitive` to visualize well-known vector vertex attributes: `normal`, `tangent`, and `bitangent`. Normal is red; tangent is green; and bitangent is blue. If an attribute is not present, it is not drawn.

##### Example:

    scene.primitives.add(Cesium.createTangentSpaceDebugPrimitive({
       geometry : instance.geometry,
       length : 100000.0,
       modelMatrix : instance.modelMatrix
    }));