private void Update(Context context, ClipmapUpdate update, ClipmapLevel level, RasterDataDetails details, RasterLevel rasterLevel)
{
ClipmapUpdate[] updates = SplitUpdateToAvoidWrapping(update, details);
foreach (ClipmapUpdate nonWrappingUpdate in updates)
{
RasterTileRegion[] tileRegions = rasterLevel.GetTilesInExtent(nonWrappingUpdate.West, nonWrappingUpdate.South, nonWrappingUpdate.East, nonWrappingUpdate.North);
foreach (RasterTileRegion region in tileRegions)
{
Texture2D tileTexture;
bool loaded = details.LoadedTiles.TryGetValue(region.Tile.Identifier, out tileTexture);
if (loaded)
{
RenderTileToLevelTexture(context, level, details, region, tileTexture);
}
else
{
UpsampleTileData(context, level, details, region);
}
}
}
if (details.Type == RasterType.Terrain)
{
// Normals at edges are incorrect, so include a one-post buffer around the update region
// when updating normals in order to update normals that were previously at the edge.
ClipmapUpdate updateWithBuffer = update.AddBufferWithinLevelNextExtent();
ClipmapUpdate[] normalUpdates = SplitUpdateToAvoidWrapping(updateWithBuffer, details);
foreach (ClipmapUpdate normalUpdate in normalUpdates)
{
UpdateNormals(context, normalUpdate);
}
}
}
private void RequestTileResidency(Context context, ClipmapLevel level, RasterDataDetails details, RasterLevel rasterLevel, ClipmapLevel.Extent nextExtent)
{
RasterTileRegion[] tileRegions = rasterLevel.GetTilesInExtent(nextExtent.West, nextExtent.South, nextExtent.East, nextExtent.North);
foreach (RasterTileRegion region in tileRegions)
{
if (!details.LoadedTiles.ContainsKey(region.Tile.Identifier))
{
RequestTileLoad(details, level, region.Tile);
}
}
}
private void InitializeRequestThreads(Context context, RasterDataDetails details, ClipmapLevel clipmapLevelZero, RasterLevel rasterLevelZero)
{
details.WorkerWindow = Device.CreateWindow(1, 1);
context.MakeCurrent();
#if !SingleThreaded
Thread requestThread = new Thread(RequestThreadEntryPoint);
requestThread.IsBackground = true;
requestThread.Start(details);
#endif
// Preload the entire world at level 0
RasterTileRegion[] regions = rasterLevelZero.GetTilesInExtent(0, 0, rasterLevelZero.LongitudePosts - 1, rasterLevelZero.LatitudePosts - 1);
foreach (RasterTileRegion region in regions)
{
RequestTileLoad(details, clipmapLevelZero, region.Tile);
}
}
private void InitializeRequestThreads(Context context, RasterDataDetails details, ClipmapLevel clipmapLevelZero, RasterLevel rasterLevelZero)
{
details.WorkerWindow = Device.CreateWindow(1, 1);
context.MakeCurrent();
#if !SingleThreaded
Thread requestThread = new Thread(RequestThreadEntryPoint);
requestThread.IsBackground = true;
requestThread.Start(details);
#endif
// Preload the entire world at level 0
RasterTileRegion[] regions = rasterLevelZero.GetTilesInExtent(0, 0, rasterLevelZero.LongitudePosts - 1, rasterLevelZero.LatitudePosts - 1);
foreach (RasterTileRegion region in regions)
{
RequestTileLoad(details, clipmapLevelZero, region.Tile);
}
}
private void Update(Context context, ClipmapUpdate update, ClipmapLevel level, RasterDataDetails details, RasterLevel rasterLevel)
{
ClipmapUpdate[] updates = SplitUpdateToAvoidWrapping(update, details);
foreach (ClipmapUpdate nonWrappingUpdate in updates)
{
RasterTileRegion[] tileRegions = rasterLevel.GetTilesInExtent(nonWrappingUpdate.West, nonWrappingUpdate.South, nonWrappingUpdate.East, nonWrappingUpdate.North);
foreach (RasterTileRegion region in tileRegions)
{
Texture2D tileTexture;
bool loaded = details.LoadedTiles.TryGetValue(region.Tile.Identifier, out tileTexture);
if (loaded)
{
RenderTileToLevelTexture(context, level, details, region, tileTexture);
}
else
{
UpsampleTileData(context, level, details, region);
}
}
}
if (details.Type == RasterType.Terrain)
{
// Normals at edges are incorrect, so include a one-post buffer around the update region
// when updating normals in order to update normals that were previously at the edge.
ClipmapUpdate updateWithBuffer = update.AddBufferWithinLevelNextExtent();
ClipmapUpdate[] normalUpdates = SplitUpdateToAvoidWrapping(updateWithBuffer, details);
foreach (ClipmapUpdate normalUpdate in normalUpdates)
{
UpdateNormals(context, normalUpdate);
}
}
}
private void RequestTileResidency(Context context, ClipmapLevel level, RasterDataDetails details, RasterLevel rasterLevel, ClipmapLevel.Extent nextExtent)
{
RasterTileRegion[] tileRegions = rasterLevel.GetTilesInExtent(nextExtent.West, nextExtent.South, nextExtent.East, nextExtent.North);
foreach (RasterTileRegion region in tileRegions)
{
if (!details.LoadedTiles.ContainsKey(region.Tile.Identifier))
{
RequestTileLoad(details, level, region.Tile);
}
}
}
