GPU code

[xoft]

Is there a way for the GPU to leave the results in memory so that another operation can use them?
So that when we have calls like

cValueArray<...> Values(...);
Values.GeneratePerlin(...)
Values.AddConstant(1)
Values.Multiply(2)
Values.Evaluate();

the Evaluate function can use a buffer it uploads to the GPU and then call virtual functions of the operations, such as GeneratePerlin(), that operate on that GPU-side buffer, and finally pull the buffer once all the operations are complete?
Yes, we're still accessing the memory in the wrong pattern, which could be improved upon, but we're not losing our modularity.