private void CreateGuiControls()
{
var panel = SampleFramework.AddOptions("Terrain");
// TerrainMaterialLayer.BlendRange controls how fast one layer fades out.
SampleHelper.AddSlider(
panel, "Blend range", null, 0, 1,
_terrainTile.Layers.OfType <TerrainMaterialLayer>().First().BlendRange,
value =>
{
foreach (var materialLayer in _terrainTile.Layers.OfType <TerrainMaterialLayer>())
{
materialLayer.BlendRange = value;
}
_terrainTile.Invalidate();
});
// TerrainMaterialLayer.BlendThreshold defines the threshold value for the blend texture.
// Layers are drawn where their blend texture value is greater than the threshold.
// Changing the threshold value can be used, for example, to decrease/increase the snow cover.
SampleHelper.AddSlider(
panel, "Snow blend threshold", null, -1, 1,
((TerrainMaterialLayer)_terrainTile.Layers[2]).BlendThreshold,
value =>
{
((TerrainMaterialLayer)_terrainTile.Layers[2]).BlendThreshold = value;
_terrainTile.Invalidate();
});
// The TerrainMaterialLayer with the rock texture contains a height map. The height values
// can be used to modify the blending, e.g. to show more gravel in the creases of the rock.
SampleHelper.AddSlider(
panel, "Rock height influence", null, -1, 1,
((TerrainMaterialLayer)_terrainTile.Layers[1]).BlendHeightInfluence,
value =>
{
((TerrainMaterialLayer)_terrainTile.Layers[1]).BlendHeightInfluence = value;
_terrainTile.Invalidate();
});
// The layer blending can be modified by noise to make the transition borders irregular.
SampleHelper.AddSlider(
panel, "Snow noise influence", null, 0, 1,
((TerrainMaterialLayer)_terrainTile.Layers[2]).BlendNoiseInfluence,
value =>
{
((TerrainMaterialLayer)_terrainTile.Layers[2]).BlendNoiseInfluence = value;
_terrainTile.Invalidate();
});
SampleHelper.AddSlider(
panel, "Snow noise tile size", null, 1, 100,
((TerrainMaterialLayer)_terrainTile.Layers[2]).NoiseTileSize,
value =>
{
((TerrainMaterialLayer)_terrainTile.Layers[2]).NoiseTileSize = value;
_terrainTile.Invalidate();
});
SampleFramework.ShowOptionsWindow("Terrain");
}