private void CreateInstanceData(string name, List <Matrix4> instanceData, int bufferSize)
{
GL.BindVertexArray(_objectsHandleDictionary[name].ObjectHandle);
var instancesArray = instanceData.ToArray();
GL.BindBuffer(BufferTarget.ArrayBuffer, _objectsHandleDictionary[name].InstanceBufferHandle);
GL.BufferData(BufferTarget.ArrayBuffer, new IntPtr(bufferSize * 4 * Vector4.SizeInBytes), instancesArray,
BufferUsageHint.DynamicDraw);
_objectsHandleDictionary[name].InstanceBufferSize = bufferSize;
}
private void CreateVerticesData(string name, List <Vector3> data, int bufferSize)
{
GL.BindVertexArray(_objectsHandleDictionary[name].ObjectHandle);
var verticesArray = data.ToArray();
GL.BindBuffer(BufferTarget.ArrayBuffer, _objectsHandleDictionary[name].VertexBufferHandle);
GL.BufferData(BufferTarget.ArrayBuffer, new IntPtr(bufferSize * Vector3.SizeInBytes), verticesArray,
BufferUsageHint.DynamicDraw);
_objectsHandleDictionary[name].VertexBufferSize = bufferSize;
}
private void CreateIndexData(string name, List <int> indices, int bufferSize)
{
GL.BindVertexArray(_objectsHandleDictionary[name].ObjectHandle);
var indicesArray = new uint[indices.Count];
for (int i = 0; i < indices.Count; i++)
{
indicesArray[i] = (uint)indices[i];
}
GL.BindBuffer(BufferTarget.ElementArrayBuffer, _objectsHandleDictionary[name].IndexBufferHandle);
GL.BufferData(BufferTarget.ElementArrayBuffer, new IntPtr(bufferSize * sizeof(uint)), indicesArray, BufferUsageHint.DynamicDraw);
_objectsHandleDictionary[name].IndexBufferSize = bufferSize;
}