Hardware vendor	Chipset	Version of source shader	SHARK uses
NVIDIA	GeForce256, GeForce2	0.5^*	NV_register_combiners
	GeForce3	1.0, 1.1	NV_texture_shader NV_texture_shader2 NV_register_combiners NV_register_combiners2
	GeForce4	1.0–1.2	NV_texture_shader NV_texture_shader2 NV_texture_shader3 NV_register_combiners NV_register_combiners2
	GeForceFX	1.0–1.2	NV_texture_shader NV_texture_shader2 NV_texture_shader3 NV_register_combiners NV_register_combiners2
		1.4, 2.0	ARB_fragment_program
ATI	Radeon 8500, 9000, 9100, 9200	1.4	ATI_fragment_shader
	Radeon 9500, 9600, 9700, 9800	1.4	ATI_fragment_shader
		1.4, 2.0	ARB_fragment_program

* Such version does not exist in DirectX. This is a subset of pixel shaders 1.2 with only two slots for arithmetic instructions. The only allowed texture addressing instruction is tex. Only two constant registers are available. This version is declared as ps.0.5.