/// <summary>
/// Helper function, returns the p[] value for the given index
/// </summary>
/// <param name="input">The "<input>" element we need the index of.</param>
/// <param name="primitive">The "<primitive>" element the "<input>" is from.</param>
/// <param name="index"> The index for which we need the p[] value.</param>
static public int GetPValue(Document.Input input, Document.Primitive primitive, int index)
{
int stride = primitive.stride;
int offset = input.offset;
return(primitive.p[index * stride + offset]);
}
/// <summary>
/// Helper function. Returns all the inputs of the primitive.
/// Resolve the 'VERTEX' indirection case.
/// <param name="doc">The COLLADA document</param>
/// <param name="primitive"> The "<primitive>" we need the inputs from.</param>
/// </summary>
static public List <Document.Input> getAllInputs(Document doc, Document.Primitive primitive)
{
List <Document.Input> inputs = new List <Document.Input>();
Document.Input vertexInput = null;
// 1- get all the regular inputs
foreach (Document.Input input in primitive.Inputs)
{
if (input.semantic == "VERTEX")
{
vertexInput = input;
}
else
{
inputs.Add(new Document.Input(doc, input.offset, input.semantic, input.set, ((Document.Source)input.source).id));
}
}
// 2- get all the indirect inputs
if (vertexInput != null)
{
foreach (Document.Input input in ((Document.Vertices)vertexInput.source).inputs)
{
inputs.Add(new Document.Input(doc, vertexInput.offset, input.semantic, input.set, ((Document.Source)input.source).id));
}
}
return(inputs);
}
/// <summary>
/// Helper function. Returns inputs with specified semantic for specified primitive.
/// Resolves the 'VERTEX' indirection case.
/// </summary>
/// <param name="primitive">The "<primitive>" we need the inputs from.</param>
/// <param name="semantic">The semantic the inputs should have.</param>
public static List <Document.Input> GetInput(Document.Primitive primitive, string semantic)
{
List <Document.Input> resultList = new List <Document.Input>();
List <Document.Input> inputs = GetAllInputs(primitive);
foreach (Document.Input input in inputs)
{
if (input.semantic == semantic)
{
resultList.Add(input);
}
}
return(resultList);
}
/// <summary>
/// Helper function. Returns all the inputs of the primitive.
/// Resolve the 'VERTEX' indirection case.
/// <param name="doc">The COLLADA document</param>
/// <param name="primitive"> The "<primitive>" we need the inputs from.</param>
/// </summary>
public static List <Document.Input> GetAllInputs(Document.Primitive primitive)
{
List <Document.Input> inputs = new List <Document.Input>();
// 1- get all the regular inputs
foreach (Document.Input input in primitive.Inputs)
{
if (input.semantic == "VERTEX")
{
// 2- get all the indirect inputs
foreach (Document.Input input2 in ((Document.Vertices)input.source).inputs)
{
inputs.Add(new Document.Input(input2.doc, input.offset, input2.semantic, input2.set, ((Document.Source)input2.source).id));
}
}
else
{
inputs.Add(input);
}
}
return(inputs);
}