public static H1IndexBuffer ProcessIndexBuffer(uint[] indices)
{
int size = Utilities.SizeOf(indices);
// create index buffer
H1IndexBuffer newIndexBuffer = H1Global <H1ManagedRenderer> .Instance.CreateIndexBuffer(Convert.ToUInt32(size));
// write the data to the index buffer
newIndexBuffer.WriteData(indices);
return(newIndexBuffer);
}
// private methods
private void ProcessMeshContext(H1MeshContext context)
{
// offset tracking
int currOffset = 0;
// process vertex buffers and index buffer
// 1. positions
var positions = context.Positions.ToArray();
if (positions.Count() != 0)
{
LocalVertexFactory.PositionVertexBuffer = H1VertexBuffer.ProcessVertexBuffer(positions);
LocalVertexFactory.PositionStreamComponent = new H1VertexStreamComponent(H1VertexStreamSematicType.Position, H1VertexElementType.Float3, currOffset++);
}
// 2. normals
var normals = context.Normals.ToArray();
if (normals.Count() != 0)
{
LocalVertexFactory.NormalVertexBuffer = H1VertexBuffer.ProcessVertexBuffer(normals);
LocalVertexFactory.NormalStreamComponent = new H1VertexStreamComponent(H1VertexStreamSematicType.Normal, H1VertexElementType.Float3, currOffset++);
}
// 3. texcoords
// 3-1. looping UVBuffers
foreach (var texcoords in context.UVBuffers)
{
if (texcoords.Buffer.Count() != 0)
{
LocalVertexFactory.TexcoordVertexBuffers.Add(H1VertexBuffer.ProcessVertexBuffer(texcoords.Buffer.ToArray()));
LocalVertexFactory.AddTexcoordStreamComponent(new H1VertexStreamComponent(H1VertexStreamSematicType.Texcoord, H1VertexElementType.Float2, currOffset++));
}
}
// 3-2. looping UVWBuffers
foreach (var texcoords in context.UVWBuffers)
{
if (texcoords.Buffer.Count() != 0)
{
LocalVertexFactory.TexcoordVertexBuffers.Add(H1VertexBuffer.ProcessVertexBuffer(texcoords.Buffer.ToArray()));
LocalVertexFactory.AddTexcoordStreamComponent(new H1VertexStreamComponent(H1VertexStreamSematicType.Texcoord, H1VertexElementType.Float3, currOffset++));
}
}
// @TODO - temporal color component
int numVertices = context.Positions.Count;
Vector4[] colors = new Vector4[numVertices];
for (int i = 0; i < numVertices; ++i)
{
colors[i].X = 1.0f; colors[i].Y = 0.0f; colors[i].Z = 0.0f; colors[i].W = 1.0f;
}
LocalVertexFactory.ColorVertexBuffer = H1VertexBuffer.ProcessVertexBuffer(colors);
LocalVertexFactory.ColorStreamComponent = new H1VertexStreamComponent(H1VertexStreamSematicType.Color, H1VertexElementType.Float4, currOffset++);
// generate RHIVertexFormatDeclaration
LocalVertexFactory.GenerateVertexDeclaration();
// 4. indices
var indices = context.Indices.ToArray();
m_IndexBuffer = H1IndexBuffer.ProcessIndexBuffer(indices);
}
