// Any number of lights, diffuse
material Cube_Lava_Normal
{
    technique
    {
        // Base ambient pass
        pass ambient
        {
          // base colours, not needed for rendering, but as information
          // to lighting pass categorisation routine
          diffuse 0 0 0
          depth_write on
          depth_bias 0

        }
        // Now do the lighting pass
        // NB we don't do decal texture here because this is repeated per light
        pass perlight
        {

            // do this for each light
            iteration once_per_light
            scene_blend add
            depth_write on
            depth_bias 1

            // base colours, not needed for rendering, but as information
            // to lighting pass categorisation routine
            ambient 0 0 0

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

            // Fragment program
            fragment_program_ref BumpMapping/BumpMapFP
            {
                param_named_auto lightDiffuse light_diffuse_colour 0
            }

            // texture shadow receiver program
            shadow_receiver_vertex_program_ref BumpMapping/BumpMapVPShadowRcv
            {
                param_named_auto lightPosition light_position_object_space 0
                param_named_auto worldViewProj worldviewproj_matrix
                param_named_auto worldMatrix world_matrix
                param_named_auto texViewProj texture_viewproj_matrix
            }
            // Additive texture shadow receiver program
            shadow_receiver_fragment_program_ref BumpMapping/BumpMapFPShadowRcv
            {
                param_named_auto lightDiffuse light_diffuse_colour 0
            }

            // Vertex program reference
            vertex_program_ref BumpMapping/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 BumpMapping/BumpMapFPSpecular
            {
                param_named_auto lightDiffuse light_diffuse_colour 0
                param_named_auto lightSpecular light_specular_colour 0
            }


            // Base bump map
            texture_unit normalmap
            {
                texture Cube_Lava_NORM.jpg
                colour_op replace
            }
        }

        // Decal pass
        pass decal
        {
            // base colours, not needed for rendering, but as information
            // to lighting pass categorisation routine
            lighting off
            depth_write on
            depth_bias 2

            scene_blend dest_colour zero
            texture_unit decalmap
            {
                texture Cube_Lava_COLOR.jpg
            }
        }
    }
}