private void UploadBufferToGPU <T>(ShaderAttributeIds attribute, T[] data) where T : struct
{
// See if this attribute is already enabled. If it's not already enabled, we need to generate a buffer for it.
if (!VertexDescription.AttributeIsEnabled(attribute))
{
VertexDescription.EnableAttribute(attribute);
}
// Bind the buffer before updating the data.
GL.BindBuffer(BufferTarget.ArrayBuffer, VertexDescription.GetAttributeBufferId(attribute));
// Finally, update the data.
int stride = VertexDescription.GetStride(attribute);
GL.BufferData <T>(BufferTarget.ArrayBuffer, (IntPtr)(data.Length * stride), data, BufferUsageHint.StaticDraw);
}
public void Bind()
{
for (int i = 0; i < m_glBufferIndexes.Length; i++)
{
ShaderAttributeIds id = (ShaderAttributeIds)i;
if (VertexDescription.AttributeIsEnabled(id))
{
GL.BindBuffer(BufferTarget.ArrayBuffer, m_glBufferIndexes[i]);
GL.EnableVertexAttribArray(i);
GL.VertexAttribPointer(i, VertexDescription.GetAttributeSize(id), VertexDescription.GetAttributePointerType(id), false, VertexDescription.GetStride(id), 0);
}
}
// Bind the Element Array Buffer as well
GL.BindBuffer(BufferTarget.ElementArrayBuffer, m_glIndexBuffer);
}