Creates a new, 3 component, attribute whose value remains constant across all the vertices of a primitive without needing to duplicate the value for each vertex.
The constants (component0, component1, component2) represent a 3 component float vector which
should have a corresponding declaration in GLSL code like:
[| attribute vec3 name; |]
unless the built in name "cogl_normal_in" is being used where no explicit GLSL declaration need be made.
| context |
A Context |
| name |
The name of the attribute (used to reference it from GLSL) |
| component0 |
The first component of a 3 component vector |
| component1 |
The second component of a 3 component vector |
| component2 |
The third component of a 3 component vector |
|
A newly allocated Attribute representing the given constant vector. |