public static void UnpackVertexData(RenderModelBlock renderModel)
{
foreach (var renderModelSectionBlock in renderModel.Sections)
{
renderModelSectionBlock.LoadSectionDataIfEmpty( );
if (renderModel.CompressionInfo.Length > 0 && renderModelSectionBlock.SectionData.Length > 0)
{
UnpackAttributeData(renderModelSectionBlock.SectionData[0].Section,
renderModel.CompressionInfo[0]);
}
}
}
private static RenderModelSectionBlock[] ProcessVariant(ModelVariantBlock variantBlock,
RenderModelBlock renderBlock, DetailLevel detailLevel)
{
var regionNames = new List <StringIdent>(variantBlock.Regions.Length);
var permutationNames = new List <StringIdent>(variantBlock.Regions.Length);
foreach (var region in variantBlock.Regions)
{
regionNames.Add(region.RegionName);
permutationNames.Add(region.Permutations.FirstOrDefault( )?.PermutationName ?? StringIdent.Zero);
}
var sectionIndices = SelectRenderModelSections(renderBlock, regionNames, permutationNames, detailLevel);
return(renderBlock.Sections.Where((e, i) => sectionIndices.Contains(i)).ToArray( ));
}
private static RenderModelSectionBlock[] ProcessRegions(
IReadOnlyCollection <ModelRegionBlock> modelRegionBlock, RenderModelBlock renderBlock,
DetailLevel detailLevel)
{
var regionNames = new List <StringIdent>(modelRegionBlock.Count);
foreach (var region in modelRegionBlock)
{
regionNames.Add(region.Name);
}
var sectionIndices = SelectRenderModelSections(renderBlock, regionNames, null, detailLevel);
var blocks = new RenderModelSectionBlock[sectionIndices.Length];
for (var i = 0; i < blocks.Length; ++i)
{
blocks[i] = renderBlock.Sections[sectionIndices[i]];
}
return(blocks);
}
/// <summary>
/// Returns array of indices of sections containing each region at a given level of detail
/// </summary>
/// <param name="renderBlock">Where the regions are located</param>
/// <param name="regionNames">A list of names for each region to return</param>
/// <param name="permutationNames"></param>
/// <param name="detailLevel">The detail level of mesh to return</param>
private static int[] SelectRenderModelSections(RenderModelBlock renderBlock,
List <StringIdent> regionNames, IReadOnlyList <StringIdent> permutationNames, DetailLevel detailLevel)
{
var indices = new int[renderBlock.Regions.Length];
var index = 0;
foreach (var region in renderBlock.Regions)
{
if (regionNames.BinarySearch(region.Name) < 0)
{
continue;
}
var sectionIndex =
GetSectionIndex(
permutationNames == null
? region.Permutations[0]
: region.Permutations.SingleOrDefault(u => u.Name == permutationNames[0]) ??
region.Permutations[0], detailLevel);
indices[index++] = sectionIndex;
}
return(indices.TakeSubset(0, index).ToArray( ));
}