private void WriteTerrainMaterial(TerrainData terrain, PrefabContext prefabContext)
{
using (var writer =
_engine.TryCreateXml(terrain.GetKey(), EvaluateMaterial(terrain),
ExportUtils.GetLastWriteTimeUtc(terrain)))
{
if (writer == null)
{
return;
}
var layers = terrain.terrainLayers;
var layerIndices = GetTerrainLayersByPopularity(terrain).Take(_maxLayers).ToArray();
var material = new UrhoPBRMaterial();
material.Technique = "Techniques/PBR/PBRTerrainBlend.xml";
material.TextureUnits.Add(EvaluateWeightsMap(terrain));
Vector2 detailTiling = new Vector2(1, 1);
for (var layerIndex = 0; layerIndex < layerIndices.Length; ++layerIndex)
{
var layer = layers[layerIndices[layerIndex]];
detailTiling = new Vector2(terrain.size.x / layer.tileSize.x, terrain.size.z / layer.tileSize.y);
if (layer.diffuseTexture != null)
{
_engine.ScheduleTexture(layer.diffuseTexture);
var urhoAssetName = _engine.EvaluateTextrueName(layer.diffuseTexture);
material.TextureUnits.Add(urhoAssetName);
}
else
{
material.TextureUnits.Add(null);
}
}
material.MatSpecColor = new Color(0.0f, 0.0f, 0.0f, 1.0f);
material.Roughness = 1;
material.Metallic = 0;
material.ExtraParameters.Add("DetailTiling", detailTiling);
material.PixelShaderDefines.Add("TERRAINLAYERS" + layerIndices.Length.ToString(CultureInfo.InvariantCulture));
StandardMaterialExporter.WriteMaterial(writer, material, prefabContext);
}
}
public string TryGetSkyboxCubemap(Material skyboxMaterial)
{
if (!_skyboxMaterialExporter.CanExportMaterial(skyboxMaterial))
{
return(null);
}
var arguments = _skyboxMaterialExporter.SetupSkybox(skyboxMaterial);
if (arguments.Skybox != null)
{
return(_engine.EvaluateTextrueName(arguments.Skybox));
}
var anyFace = arguments.BackTex ?? arguments.DownTex ?? arguments.FrontTex ??
arguments.LeftTex ?? arguments.RightTex ?? arguments.UpTex;
if (anyFace != null)
{
return(ExportUtils.ReplaceExtension(_engine.EvaluateMaterialName(skyboxMaterial), ".Cubemap.xml"));
}
return(null);
}