//--------------
// Bump mapping
//--------------

// Bump map vertex program, support for this is required
vertex_program BumpMapVP cg
{
	source BumpMapping.cg
	entry_point main_vp
	profiles vs_1_1 arbvp1
}

// Bump map fragment program, support for this is optional
fragment_program BumpMapFP cg
{
	source BumpMapping.cg
	entry_point main_fp
	profiles ps_1_1 arbfp1 fp20
}

// Bump map with specular vertex program, support for this is required
vertex_program BumpMapVPSpecular cg
{
	source BumpMapping.cg
	entry_point specular_vp
	profiles vs_1_1 arbvp1
}

// Bump map fragment program, support for this is optional
fragment_program BumpMapFPSpecular cg
{
	source BumpMapping.cg
	entry_point specular_fp
	profiles ps_1_1 arbfp1 fp20

	default_params
	{
        param_named shine float 3
	}

}


// Any number of lights, diffuse and specular
material Asteroid/BumpMap/MultiLightSpecular
{

	// This is the preferred technique which uses both vertex and
	// fragment programs, supports coloured lights
	technique
	{
		// Base ambient pass
		pass
		{
			// base colours, not needed for rendering, but as information
			// to lighting pass categorisation routine
			ambient 1 1 1
			diffuse 0 0 0
			specular 0 0 0 0
			// Really basic vertex program
			// NB we don't use fixed function here because GL does not like
			// mixing fixed function and vertex programs, depth fighting can
			// be an issue
			vertex_program_ref Ogre/BasicVertexPrograms/AmbientOneTexture
			{
				param_named_auto worldViewProj worldviewproj_matrix
				param_named_auto ambient ambient_light_colour
			}

		}
		// Now do the lighting pass
		// NB we don't do decal texture here because this is repeated per light
		pass
		{
			// base colours, not needed for rendering, but as information
			// to lighting pass categorisation routine
			ambient 0 0 0
			// do this for each light
			iteration once_per_light


			scene_blend add

			// Vertex program reference
			vertex_program_ref BumpMapVPSpecular
			{
				param_named_auto lightPosition light_position_object_space 0
				param_named_auto eyePosition camera_position_object_space
				param_named_auto worldViewProj worldviewproj_matrix
			}

			// Fragment program
			fragment_program_ref BumpMapFPSpecular
			{
				param_named_auto lightDiffuse light_diffuse_colour 0
				param_named_auto lightSpecular light_specular_colour 0
			}

			// Base bump map
			texture_unit
			{
				texture NMrock.tga
				colour_op replace
			}
			// Normalisation cube map
			texture_unit
			{
				cubic_texture nm.tga combinedUVW
				tex_coord_set 1
				tex_address_mode clamp
			}
			// Normalisation cube map #2
			texture_unit
			{
				cubic_texture nm.tga combinedUVW
				tex_coord_set 2
				tex_address_mode clamp
			}
		}

		// Decal pass
		pass
		{
			lighting off
			// Really basic vertex program
			// NB we don't use fixed function here because GL does not like
			// mixing fixed function and vertex programs, depth fighting can
			// be an issue
			vertex_program_ref Ogre/BasicVertexPrograms/AmbientOneTexture
			{
				param_named_auto worldViewProj worldviewproj_matrix
				param_named ambient float4 1 1 1 1
			}
			scene_blend dest_colour zero
			texture_unit
			{
				texture rock.tga
			}

		}
	}

	// This is the fallback which cards which don't have fragment program
	// support will use, NB does not support specular colour
	// Note that it still requires vertex program support
	technique
	{
		// Base ambient pass
		pass
		{
			// base colours, not needed for rendering, but as information
			// to lighting pass categorisation routine
			ambient 1 1 1
			diffuse 0 0 0
			specular 0 0 0 0
			// Really basic vertex program
			// NB we don't use fixed function here because GL does not like
			// mixing fixed function and vertex programs, depth fighting can
			// be an issue
			vertex_program_ref Ogre/BasicVertexPrograms/AmbientOneTexture
			{
				param_named_auto worldViewProj worldviewproj_matrix
				param_named_auto ambient ambient_light_colour
			}

		}
		// Now do the lighting pass
		// NB we don't do decal texture here because this is repeated per light
		pass
		{
			// base colours, not needed for rendering, but as information
			// to lighting pass categorisation routine
			ambient 0 0 0
			// do this for each light
			iteration once_per_light


			scene_blend add

			// Vertex program reference
			vertex_program_ref BumpMapVP
			{
				param_named_auto lightPosition light_position_object_space 0
				param_named_auto worldViewProj worldviewproj_matrix
			}

			// Base bump map
			texture_unit
			{
				texture NMrock.tga
				colour_op replace
			}
			// Normalisation cube map, with dot product on bump map
			texture_unit
			{
				cubic_texture nm.tga combinedUVW
				tex_coord_set 1
				tex_address_mode clamp
				colour_op_ex dotproduct src_texture src_current
				colour_op_multipass_fallback dest_colour zero
			}
		}

		// Decal pass
		pass
		{
			lighting off
			// Really basic vertex program
			// NB we don't use fixed function here because GL does not like
			// mixing fixed function and vertex programs, depth fighting can
			// be an issue
			vertex_program_ref Ogre/BasicVertexPrograms/AmbientOneTexture
			{
				param_named_auto worldViewProj worldviewproj_matrix
				param_named ambient float4 1 1 1 1
			}
			scene_blend dest_colour zero
			texture_unit
			{
				texture rock.tga
			}

		}

	}
}