public bool LoadFromVBM(string filename, int vertexIndex, int normalIndex, int texCoord0Index)
{
FileStream f = new FileStream(filename, FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(f);
long filesize = f.Length;
byte[] data = new byte[filesize];
UnmanagedArray <byte> raw_data;
f.Read(data, 0, (int)filesize);
f.Seek(0, SeekOrigin.Begin);
VBM_HEADER header = br.ReadStruct <VBM_HEADER>();
VBM_ATTRIB_HEADER attrib_header = br.ReadStruct <VBM_ATTRIB_HEADER>();
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
VBM_FRAME_HEADER frame_header = br.ReadStruct <VBM_FRAME_HEADER>();
uint total_data_size = 0;
this.m_header = header;
{
long offset = header.size;// +header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
this.m_attrib = new VBM_ATTRIB_HEADER[header.num_attribs];
for (int i = 0; i < header.num_attribs; i++)
{
this.m_attrib[i] = br.ReadStruct <VBM_ATTRIB_HEADER>();
}
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));// +header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
this.m_frame = new VBM_FRAME_HEADER[header.num_frames];
for (int i = 0; i < header.num_frames; i++)
{
this.m_frame[i] = br.ReadStruct <VBM_FRAME_HEADER>();
}
GL.GenVertexArrays(1, m_vao);
GL.BindVertexArray(m_vao[0]);
GL.GenBuffers(1, m_attribute_buffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, m_attribute_buffer[0]);
//uint i;
for (uint i = 0; i < header.num_attribs; i++)
{
total_data_size += m_attrib[i].components * sizeof(float) * header.num_vertices;
}
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER)) + header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
raw_data = new UnmanagedArray <byte>((int)total_data_size);
for (int i = 0; i < raw_data.Length; i++)
{
raw_data[i] = data[offset + i];
}
}
//GL.BufferData(GL_ARRAY_BUFFER, total_data_size, raw_data, GL_STATIC_DRAW);
GL.BufferData(BufferTarget.ArrayBuffer, raw_data, BufferUsage.StaticDraw);
total_data_size = 0;
for (uint i = 0; i < header.num_attribs; i++)
{
uint attribIndex = i;
if (attribIndex == 0)
{
attribIndex = (uint)vertexIndex;
}
else if (attribIndex == 1)
{
attribIndex = (uint)normalIndex;
}
else if (attribIndex == 2)
{
attribIndex = (uint)texCoord0Index;
}
GL.VertexAttribPointer(attribIndex, (int)m_attrib[i].components, m_attrib[i].type, false, 0, new IntPtr(total_data_size));
GL.EnableVertexAttribArray(attribIndex);
total_data_size += m_attrib[i].components * sizeof(float) * header.num_vertices;
}
if (header.num_indices > 0)
{
GL.GenBuffers(1, m_index_buffer);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, m_index_buffer[0]);
uint element_size;
if (header.indexype == 0x1403)
{
element_size = sizeof(ushort);
}
else
{
element_size = sizeof(uint);
}
//GL.BufferData(GL_ELEMENT_ARRAY_BUFFER, header.num_indices * element_size, raw_data + total_data_size, GL_STATIC_DRAW);
UnmanagedArray <byte> tmp = new UnmanagedArray <byte>((int)(header.num_indices * element_size));
for (int t = 0; t < tmp.Length; t++)
{
tmp[t] = raw_data[(int)(t + total_data_size)];
}
GL.BufferData(BufferTarget.ElementArrayBuffer, tmp, BufferUsage.StaticDraw);
tmp.Dispose();
}
GL.BindVertexArray(0);
raw_data.Dispose();
return(true);
}
public bool LoadFromVBM(string filename, int vertexIndex, int normalIndex, int texCoord0Index)
{
FileStream f = new FileStream(filename, FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(f);
long filesize = f.Length;
byte[] data = new byte[filesize];
UnmanagedArray<byte> raw_data;
f.Read(data, 0, (int)filesize);
f.Seek(0, SeekOrigin.Begin);
VBM_HEADER header = br.ReadStruct<VBM_HEADER>();
VBM_ATTRIB_HEADER attrib_header = br.ReadStruct<VBM_ATTRIB_HEADER>();
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
VBM_FRAME_HEADER frame_header = br.ReadStruct<VBM_FRAME_HEADER>();
uint total_data_size = 0;
this.m_header = header;
{
long offset = header.size;// +header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
this.m_attrib = new VBM_ATTRIB_HEADER[header.num_attribs];
for (int i = 0; i < header.num_attribs; i++)
{
this.m_attrib[i] = br.ReadStruct<VBM_ATTRIB_HEADER>();
}
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));// +header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
this.m_frame = new VBM_FRAME_HEADER[header.num_frames];
for (int i = 0; i < header.num_frames; i++)
{
this.m_frame[i] = br.ReadStruct<VBM_FRAME_HEADER>();
}
GL.GenVertexArrays(1, m_vao);
GL.BindVertexArray(m_vao[0]);
GL.GenBuffers(1, m_attribute_buffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, m_attribute_buffer[0]);
//uint i;
for (uint i = 0; i < header.num_attribs; i++)
{
total_data_size += m_attrib[i].components * sizeof(float) * header.num_vertices;
}
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER)) + header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
raw_data = new UnmanagedArray<byte>((int)total_data_size);
for (int i = 0; i < raw_data.Length; i++)
{
raw_data[i] = data[offset + i];
}
}
//GL.BufferData(GL_ARRAY_BUFFER, total_data_size, raw_data, GL_STATIC_DRAW);
GL.BufferData(BufferTarget.ArrayBuffer, raw_data, BufferUsage.StaticDraw);
total_data_size = 0;
for (uint i = 0; i < header.num_attribs; i++)
{
uint attribIndex = i;
if (attribIndex == 0)
attribIndex = (uint)vertexIndex;
else if (attribIndex == 1)
attribIndex = (uint)normalIndex;
else if (attribIndex == 2)
attribIndex = (uint)texCoord0Index;
GL.VertexAttribPointer(attribIndex, (int)m_attrib[i].components, m_attrib[i].type, false, 0, new IntPtr(total_data_size));
GL.EnableVertexAttribArray(attribIndex);
total_data_size += m_attrib[i].components * sizeof(float) * header.num_vertices;
}
if (header.num_indices > 0)
{
GL.GenBuffers(1, m_index_buffer);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, m_index_buffer[0]);
uint element_size;
if (header.indexype == 0x1403)
{
element_size = sizeof(ushort);
}
else
{
element_size = sizeof(uint);
}
//GL.BufferData(GL_ELEMENT_ARRAY_BUFFER, header.num_indices * element_size, raw_data + total_data_size, GL_STATIC_DRAW);
UnmanagedArray<byte> tmp = new UnmanagedArray<byte>((int)(header.num_indices * element_size));
for (int t = 0; t < tmp.Length; t++)
{
tmp[t] = raw_data[(int)(t + total_data_size)];
}
GL.BufferData(BufferTarget.ElementArrayBuffer, tmp, BufferUsage.StaticDraw);
tmp.Dispose();
}
GL.BindVertexArray(0);
raw_data.Dispose();
return true;
}
