//
// Default Terrain material file.
// 
// In addition to the built-in Node material auto-bindings, the following terrain-specific
// auto-bindings are also supported:
//
// TERRAIN_NORMAL_MAP                   : normal map sampler (if using a normal map)
// TERRAIN_LAYER_MAPS                   : array of texture samplers for each terrain layer
// TERRAIN_ROW                          : row index of the current terrain patch
// TERRAIN_COLUMN                       : column index of the current terrain patch
//
// To add lighting (other than ambient) to a terrain, you can add additional pass defines and
// uniform bindings and handle them in your specific game or renderer. See the gameplay
// terrain sample for an example.
//
material terrain
{
    u_worldViewProjectionMatrix = WORLD_VIEW_PROJECTION_MATRIX

    u_normalMatrix = INVERSE_TRANSPOSE_WORLD_VIEW_MATRIX
    //u_normalMap = TERRAIN_NORMAL_MAP

    u_surfaceLayerMaps = TERRAIN_LAYER_MAPS

    u_ambientColor = SCENE_AMBIENT_COLOR

    renderState
    {
        cullFace = true
        depthTest = true
    }

    technique
    {
        pass
        {
            vertexShader = res/shaders/terrain.vert
            fragmentShader = res/shaders/terrain.frag
        }
    }
}