Newbie - VertexShader only effects
I'd like to use fragment/vertex shaders, however I have a GeForce4 TI 4200, so I've only Vextex shader and NV_Combiners in hardware, but no Fragment Shader at all.
So i'd like to know what effects it's possible to build only with Vertex shader ? And if it's possible to combine Vertex Shader and NV_Combiner to have something similar to Vertex+Fragment shader structure.
On top of that, I read that it's possible to use Fragment Shader with DirectX (software emulation). Is it possible to have an emulation with OpenGL too?
Thanks in advance for your replies