public void SetVertices(Vector3f[] verts)
{
if (fVertexBufferObject != null)
{
fVertexBufferObject.Dispose();
fVertexBufferObject = null;
}
// Write the vertex data to the buffer
GCHandle dataPtr = GCHandle.Alloc(verts, GCHandleType.Pinned);
int dataSize = Marshal.SizeOf(typeof(Vector3f)) * verts.Length;
fVertexBufferObject = new VertexBufferObject(GI);
fVertexBufferObject.Bind();
fVertexBufferObject.Size = dataSize;
try
{
fVertexBufferObject.Bind();
fVertexBufferObject.Write(dataPtr.AddrOfPinnedObject(), 0, dataSize);
}
finally
{
fVertexBufferObject.Unbind();
dataPtr.Free();
}
}
private void Generate()
{
_shader = ShaderManager.GetOrCreateShader("slab_block", Shaders.slab_vertex, Shaders.slab_fragment);
foreach (var face in BlockFaceMethods.All)
{
var vao = BlockFaceVertices.CreateVao(face, SlabHeight);
vao.Bind();
var vbo = new VertexBufferObject();
vao.LinkBuffer(vbo);
vbo.Bind(BufferTarget.ArrayBuffer);
vbo.SetData(BufferTarget.ArrayBuffer, MaxFaces * InstanceFloatDataLength, BufferUsageHint.StreamDraw);
var builder = new AttributePointerBuilder(vao, InstanceDataLength, 3);
builder.AddPointer(3, true);
builder.AddPointer(1, true);
builder.AddPointer(1, true);
builder.AddPointer(1, true);
builder.AddPointer(1, true);
builder.AddPointer(1, true);
VertexBufferObject.Unbind(BufferTarget.ArrayBuffer);
VertexArrayObject.Unbind();
var i = (int)face;
_vaos[i] = vao;
_dataBuffers[i] = vbo;
var mapper = _mappers[i];
mapper.Vao = vao;
mapper.Vbo = vbo;
}
}
private static void AddToVbo()
{
var vbo = _vao.VerticesVbo;
vbo.Bind(BufferTarget.ArrayBuffer);
vbo.SetData(BufferTarget.ArrayBuffer, GenerateFloatArray(), BufferUsageHint.StreamDraw);
VertexBufferObject.Unbind(BufferTarget.ArrayBuffer);
}
public void CreateAttribute(int attribute, float[] data, int attrSize)
{
VertexBufferObject dataVbo = VertexBufferObject.Create(BufferTarget.ArrayBuffer);
dataVbo.Bind();
dataVbo.StoreData(data);
GL.VertexAttribPointer(attribute, attrSize, VertexAttribPointerType.Float, false, attrSize * BYTES_PER_FLOAT, 0);
dataVbo.Unbind();
_dataVbos.Add(dataVbo);
}
public void CreateIntAttribute(int attribute, int[] data, int attrSize)
{
VertexBufferObject dataVbo = VertexBufferObject.Create(BufferTarget.ArrayBuffer);
dataVbo.Bind();
dataVbo.StoreData(data);
GL.VertexAttribIPointer(attribute, attrSize, VertexAttribIntegerType.Int, attrSize * BYTES_PER_INT, System.IntPtr.Zero);
dataVbo.Unbind();
_dataVbos.Add(dataVbo);
}
private static VertexArrayObject LoadVao()
{
var vao = new VertexArrayObject();
var vbo = new VertexBufferObject();
vao.Bind();
vbo.Bind(BufferTarget.ArrayBuffer);
vao.LinkBuffer(vbo);
vbo.SetData(BufferTarget.ArrayBuffer, Vertices, BufferUsageHint.StaticDraw);
var builder = new AttributePointerBuilder(vao, 3, 0);
builder.AddPointer(3, false);
VertexBufferObject.Unbind(BufferTarget.ArrayBuffer);
VertexArrayObject.Unbind();
return(vao);
}
public VertexArrayObject CreateAndSetupVertexArrayObject(VertexBufferObject<Vertex3V3N> vertexBuffer, VertexBufferObject<uint> elementBuffer)
{
var vertexArrayObject = _resourceFactory.CreateVertexArrayObject();
vertexArrayObject.Bind();
vertexBuffer.Bind();
elementBuffer.Bind();
var dummy = new Vertex3V3N();
GL.VertexAttribPointer(0, 3, VertexAttribPointerType.Float, false, dummy.SizeInBytes, dummy.PositionOffset);
GL.EnableVertexAttribArray(0);
GL.VertexAttribPointer(1, 3, VertexAttribPointerType.Float, false, dummy.SizeInBytes, dummy.NormalOffset);
GL.EnableVertexAttribArray(1);
vertexArrayObject.Unbind();
vertexBuffer.Unbind();
elementBuffer.Unbind();
return vertexArrayObject;
}
public VertexArrayObject CreateAndSetupVertexArrayObject(VertexBufferObject <Vertex3V3N> vertexBuffer, VertexBufferObject <uint> elementBuffer)
{
var vertexArrayObject = _resourceFactory.CreateVertexArrayObject();
vertexArrayObject.Bind();
vertexBuffer.Bind();
elementBuffer.Bind();
var dummy = new Vertex3V3N();
GL.VertexAttribPointer(0, 3, VertexAttribPointerType.Float, false, dummy.SizeInBytes, dummy.PositionOffset);
GL.EnableVertexAttribArray(0);
GL.VertexAttribPointer(1, 3, VertexAttribPointerType.Float, false, dummy.SizeInBytes, dummy.NormalOffset);
GL.EnableVertexAttribArray(1);
vertexArrayObject.Unbind();
vertexBuffer.Unbind();
elementBuffer.Unbind();
return(vertexArrayObject);
}
private void Generate()
{
_shader = ShaderManager.GetOrCreateShader("cubic_block", Shaders.block_vertex, Shaders.block_fragment);
_vao = new VertexArrayObject(GenTransformedVertices(), Indices);
_vao.Bind();
_dataBuffer = new VertexBufferObject();
_vao.LinkBuffer(_dataBuffer);
_dataBuffer.Bind(BufferTarget.ArrayBuffer);
_dataBuffer.SetData(BufferTarget.ArrayBuffer, MaxBlocks * InstanceFloatDataLength,
BufferUsageHint.StreamDraw);
var builder = new AttributePointerBuilder(_vao, InstanceDataLength, 3);
builder.AddPointer(3, true);
builder.AddPointer(1, true);
builder.AddPointer(1, true);
builder.AddPointer(1, true);
builder.AddPointer(1, true);
VertexBufferObject.Unbind(BufferTarget.ArrayBuffer);
VertexArrayObject.Unbind();
_mapper.Vao = _vao;
_mapper.Vbo = _dataBuffer;
}
public void SetTextureCoordinates(TextureCoordinates[] coords)
{
if (fTextureBufferObject != null)
{
fTextureBufferObject.Dispose();
fTextureBufferObject = null;
}
// Write the vertex data to the buffer
GCHandle dataPtr = GCHandle.Alloc(coords, GCHandleType.Pinned);
int dataSize = Marshal.SizeOf(typeof(TextureCoordinates)) * coords.Length;
fTextureBufferObject = new VertexBufferObject(GI);
fTextureBufferObject.Bind();
fTextureBufferObject.Size = dataSize;
try
{
fTextureBufferObject.Bind();
fTextureBufferObject.Write(dataPtr.AddrOfPinnedObject(), 0, dataSize);
}
finally
{
fTextureBufferObject.Unbind();
dataPtr.Free();
}
}
public void Unbind()
{
vertices.Unbind();
}
public void Update(Mesh3V3N mesh)
{
_vertexBuffer.Bind();
_vertexBuffer.Data(mesh.Vertices, BufferUsageHint.StaticDraw);
_vertexBuffer.Unbind();
}
