public void SetVertexAttrib(uint index, GpuBuffer buffer, int size, bool normalized = false, int stride = 0, uint offset = 0)
{
Bind();
buffer.Bind();
GL.VertexAttribPointer(index, size, (uint)buffer.Type, normalized, stride, new IntPtr(offset));
GL.EnableVertexAttribArray(index);
}
public static GpuBuffer[] Create(int n, BufferTarget target = BufferTarget.Array)
{
uint[] handles = new uint[n];
GL.GenBuffers(n, handles);
var result = new GpuBuffer[n];
for (int i = 0; i < n; i++)
{
result[i] = new GpuBuffer(handles[i], target);
}
return(result);
}
public static GpuBuffer[] Create(BufferTarget[] targets)
{
int n = targets.Length;
uint[] handles = new uint[n];
GL.GenBuffers(n, handles);
var result = new GpuBuffer[n];
for (int i = 0; i < n; i++)
{
result[i] = new GpuBuffer(handles[i], targets[i]);
}
return(result);
}
public void SetVertexAttrib(uint index, GpuBuffer buffer, int size, DataType type, bool normalized = false, int stride = 0, uint offset = 0)
{
Bind();
buffer.Bind();
switch (type)
{
case DataType.Byte:
case DataType.UnsignedByte:
case DataType.Short:
case DataType.UnsignedShort:
case DataType.Int:
case DataType.UnsignedInt:
GL.VertexAttribIPointer(index, size, (uint)type, stride, new IntPtr(offset));
break;
default:
GL.VertexAttribPointer(index, size, (uint)type, normalized, stride, new IntPtr(offset));
break;
}
GL.EnableVertexAttribArray(index);
}