public static VertexAttributes Create(params float[][] defaults)
{
VertexAttributes v = new VertexAttributes();
int count = defaults.GetLength(0);
v.Defaults = new float[count][];
v.Size = new int[count];
v.TotalSize = 0;
int idx = 0;
foreach(float[] f in defaults){
v.Defaults[idx] = f;
v.Size[idx] = f.GetLength(0);
v.TotalSize += v.Size[idx];
++idx;
}
return v;
}
public static VertexAttributes Create(params int[] counts)
{
//makes zeroed arrays in the given counts.
VertexAttributes v = new VertexAttributes();
int count = counts.GetLength(0);
v.Defaults = new float[count][];
v.Size = new int[count];
v.TotalSize = 0;
int idx = 0;
foreach(int i in counts){
v.Defaults[idx] = new float[i]; //todo: this method needs a note: which attribs are assumed to be here already? if you Create(2), is that texcoords? and what?
v.Size[idx] = i;
v.TotalSize += i;
++idx;
}
return v;
}
public static VBO Create(int position_dimensions,VertexAttributes attribs)
{
VBO v = new VBO();
GL.GenBuffers(1,out v.PositionArrayBufferID);
GL.GenBuffers(1,out v.OtherArrayBufferID);
GL.GenBuffers(1,out v.ElementArrayBufferID);
v.PositionDimensions = position_dimensions;
v.VertexAttribs = attribs;
return v;
}