private TerrainPatch CreatePatch(
TerrainMaterial terrainMaterial,
HeightMap heightMap,
BlendTileData blendTileData,
Rectangle patchBounds,
GraphicsDevice graphicsDevice,
TerrainPatchIndexBufferCache indexBufferCache)
{
var indexBuffer = indexBufferCache.GetIndexBuffer(
patchBounds.Width,
patchBounds.Height,
out var indices);
var vertexBuffer = AddDisposable(CreateVertexBuffer(
graphicsDevice,
heightMap,
patchBounds,
indices,
out var boundingBox,
out var triangles));
return(new TerrainPatch(
terrainMaterial,
patchBounds,
vertexBuffer,
indexBuffer,
(uint)indices.Length,
triangles,
boundingBox));
}
private TerrainPatchComponent CreatePatch(
TerrainEffect terrainEffect,
EffectPipelineStateHandle pipelineStateHandle,
HeightMap heightMap,
BlendTileData blendTileData,
Int32Rect patchBounds,
GraphicsDevice graphicsDevice,
ResourceUploadBatch uploadBatch,
TerrainPatchIndexBufferCache indexBufferCache)
{
var indexBuffer = indexBufferCache.GetIndexBuffer(
patchBounds.Width,
patchBounds.Height,
uploadBatch,
out var indices);
var vertexBuffer = AddDisposable(CreateVertexBuffer(
graphicsDevice,
uploadBatch,
heightMap,
patchBounds,
indices,
out var boundingBox,
out var triangles));
return(new TerrainPatchComponent(
terrainEffect,
pipelineStateHandle,
patchBounds,
vertexBuffer,
indexBuffer,
triangles,
boundingBox));
}