{
    "shader_resources": [
        {
            "contexts": [
                {
                    "blend_destination": "blend_zero", 
                    "blend_source": "blend_one", 
                    "compare_mode": "less", 
                    "constants": [
                        {
                            "id": "M", 
                            "link": "_modelMatrix", 
                            "type": "mat4"
                        }, 
                        {
                            "id": "NM", 
                            "link": "_normalMatrix", 
                            "type": "mat4"
                        }, 
                        {
                            "id": "V", 
                            "link": "_viewMatrix", 
                            "type": "mat4"
                        }, 
                        {
                            "id": "P", 
                            "link": "_projectionMatrix", 
                            "type": "mat4"
                        }, 
                        {
                            "id": "LMVP", 
                            "link": "_lightModelViewProjectionMatrix", 
                            "type": "mat4"
                        }, 
                        {
                            "id": "albedo_color", 
                            "type": "vec4"
                        }, 
                        {
                            "id": "light", 
                            "link": "_lightPosition", 
                            "type": "vec3"
                        }, 
                        {
                            "id": "eye", 
                            "link": "_cameraPosition", 
                            "type": "vec3"
                        }, 
                        {
                            "id": "lighting", 
                            "type": "bool"
                        }, 
                        {
                            "id": "receiveShadow", 
                            "type": "bool"
                        }, 
                        {
                            "id": "roughness", 
                            "type": "float"
                        }, 
                        {
                            "id": "metalness", 
                            "type": "float"
                        }
                    ], 
                    "cull_mode": "counter_clockwise", 
                    "depth_write": true, 
                    "fragment_shader": "forward_Billboard_NormalMapping.frag", 
                    "id": "forward", 
                    "texture_units": [
                        {
                            "id": "shadowMap"
                        }, 
                        {
                            "id": "snormal"
                        }
                    ], 
                    "vertex_shader": "forward_Billboard_NormalMapping.vert"
                }
            ], 
            "id": "forward_Billboard_NormalMapping", 
            "vertex_structure": [
                {
                    "name": "pos", 
                    "size": 3
                }, 
                {
                    "name": "nor", 
                    "size": 3
                }, 
                {
                    "name": "tan", 
                    "size": 3
                }
            ]
        }
    ]
}