gaffer.mtd : don't expose geometry_matrix at all via the parameters.
gaffer.mtd : don't expose geometry_matrix at all via the parameters.

We had a bug report that changing shader parameters resets transforms and this
is part of the solution.

hradec/gaffer,lucienfostier/gaffer,boberfly/gaffer,GafferHQ/gaffer,hradec/gaffer,ImageEngine/gaffer,andrewkaufman/gaffer,lucienfostier/gaffer,andrewkaufman/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,appleseedhq/gaffer,ImageEngine/gaffer,boberfly/gaffer,hradec/gaffer,appleseedhq/gaffer,hradec/gaffer,hradec/gaffer,ImageEngine/gaffer,appleseedhq/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,ImageEngine/gaffer,boberfly/gaffer,GafferHQ/gaffer,GafferHQ/gaffer,johnhaddon/gaffer,johnhaddon/gaffer,lucienfostier/gaffer,lucienfostier/gaffer,boberfly/gaffer,andrewkaufman/gaffer,GafferHQ/gaffer,GafferHQ/gaffer,appleseedhq/gaffer,johnhaddon/gaffer