Creates a new, 4 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, constant3) represent a 4 component
float vector which should have a corresponding declaration in GLSL code like:
[| attribute vec4 name; |]
unless one of the built in names "cogl_color_in", "cogl_tex_coord0_in or "cogl_tex_coord1_in" etc 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 4 component vector |
| component1 |
The second component of a 4 component vector |
| component2 |
The third component of a 4 component vector |
| component3 |
The fourth component of a 4 component vector |
|
A newly allocated Attribute representing the given constant vector. |