public DemoPartitionContext(
GraphicsDevice graphicsDevice, ContentManager content, CDLODSettings settings,
ICDLODVisibleRanges visibleRanges, SampleSourceDelegate noiseSource,
float noiseMinX, float noiseMinY, float noiseWidth, float noiseHeight)
{
GraphicsDevice = graphicsDevice;
Content = content;
this.settings = settings;
NoiseSource = noiseSource;
NoiseMinX = noiseMinX;
NoiseMinY = noiseMinY;
NoiseWidth = noiseWidth;
NoiseHeight = noiseHeight;
TerrainRenderer = new DemoTerrainRenderer(GraphicsDevice, Content, settings);
TerrainRenderer.InitializeMorphConsts(visibleRanges);
var heightColors = new HeightColorCollection();
// default settings.
heightColors.AddColor(-1.0000f, Color.Navy);
heightColors.AddColor(-0.2500f, Color.Blue);
heightColors.AddColor( 0.0000f, Color.LightSeaGreen);
heightColors.AddColor( 0.0625f, Color.Khaki);
heightColors.AddColor( 0.1250f, Color.DarkGreen);
heightColors.AddColor( 0.3750f, Color.DarkGoldenrod);
heightColors.AddColor( 0.7500f, Color.Gray);
heightColors.AddColor( 1.0000f, Color.White);
TerrainRenderer.InitializeHeightColors(heightColors);
Selection = new CDLODSelection(settings, visibleRanges);
}
public DemoPartitionContext(
GraphicsDevice graphicsDevice, ContentManager content, CDLODSettings settings,
ICDLODVisibleRanges visibleRanges)
{
GraphicsDevice = graphicsDevice;
Content = content;
this.settings = settings;
TerrainRenderer = new DemoTerrainRenderer(GraphicsDevice, Content, settings);
TerrainRenderer.InitializeMorphConsts(visibleRanges);
var heightColors = new HeightColorCollection();
// default settings.
heightColors.AddColor(-1.0000f, new Color( 0, 0, 128, 255));
heightColors.AddColor(-0.2500f, new Color( 0, 0, 255, 255));
heightColors.AddColor( 0.0000f, new Color( 0, 128, 255, 255));
heightColors.AddColor( 0.0625f, new Color(240, 240, 64, 255));
heightColors.AddColor( 0.1250f, new Color( 32, 160, 0, 255));
heightColors.AddColor( 0.3750f, new Color(224, 224, 0, 255));
heightColors.AddColor( 0.7500f, new Color(128, 128, 128, 255));
heightColors.AddColor( 1.0000f, new Color(255, 255, 255, 255));
TerrainRenderer.InitializeHeightColors(heightColors);
Selection = new CDLODSelection(settings, visibleRanges);
}
public CDLODSelection(CDLODSettings settings, ICDLODVisibleRanges visibleRanges)
{
Settings = settings;
VisibleRanges = visibleRanges;
Frustum = new BoundingFrustum(Matrix.Identity);
selectedNodes = new CDLODSelectedNode[MaxSelectedNodeCount];
}
public static void Create(ICDLODVisibleRanges visibleRanges, out Vector2[] results)
{
results = new Vector2[visibleRanges.Count];
float lastStart = 0;
for (int i = 0; i < visibleRanges.Count; i++)
{
// Calculate a morph start/end range.
var end = visibleRanges[i];
var start = lastStart + (end - lastStart) * MorphStartRatio;
end = MathHelper.Lerp(end, start, errorFudge);
lastStart = start;
// Calculate a morph constant.
results[i] = new Vector2(end / (end - start), 1 / (end - start));
}
}
// Invoke this method if the state of a IVisibleRanges instance is changed.
public void InitializeMorphConsts(ICDLODVisibleRanges visibleRanges)
{
Vector2[] morphConsts;
CDLODMorphConsts.Create(visibleRanges, out morphConsts);
effect.MorphConsts = morphConsts;
}
