public void Draw()
{
if (state == DrawStates.None)
{
return;
}
if ((state & DrawStates.Vertex) == DrawStates.Vertex)
{
VertexBuffer.Bind(BufferTarget.ArrayBuffer);
VertexBuffer.UseVertexPointer(vertexSize, VertexStride, VertexOffset);
}
if ((state & DrawStates.TexCoord) == DrawStates.TexCoord)
{
TexCoordBuffer.Bind(BufferTarget.ArrayBuffer);
TexCoordBuffer.UseTexCoordPointer(texCoordSize, TexCoordStride, TexCoordOffset);
}
if ((state & DrawStates.Normal) == DrawStates.Normal)
{
NormalBuffer.Bind(BufferTarget.ArrayBuffer);
NormalBuffer.UseNormalPointer(NormalStride, NormalOffset);
}
//TODO this needs to become static/part of some graphics context class.
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
IndexBuffer.Bind(BufferTarget.ElementArrayBuffer);
GL.DrawElements(DrawMode, IndexBuffer.Length, (DrawElementsType)IndexBuffer.DataType, 0);
IndexBuffer.Unbind(BufferTarget.ElementArrayBuffer);
}
protected void Dispose(bool disposing)
{
if (mDisposed)
{
return;
}
if (disposing)
{
PositionBuffer?.Dispose();
NormalBuffer?.Dispose();
TangentBuffer?.Dispose();
TexCoord0Buffer?.Dispose();
TexCoord1Buffer?.Dispose();
Color0Buffer?.Dispose();
foreach (var subMesh in SubMeshes)
{
subMesh.Dispose();
}
}
GL.DeleteVertexArray(VertexArrayId);
GL.Finish();
mDisposed = true;
}
public BufferPointer GetBufferRenderer(string bufferName, string varNameInShader)
{
if (bufferName == strPosition)
{
using (var buffer = new PositionBuffer(varNameInShader))
{
buffer.Alloc(positions.Count);
unsafe
{
var array = (vec3 *)buffer.FirstElement();
for (int i = 0; i < positions.Count; i++)
{
array[i] = positions[i];
}
}
return(buffer.GetBufferPtr());
}
}
else if (bufferName == strColor)
{
using (var buffer = new ColorBuffer(varNameInShader))
{
buffer.Alloc(normals.Count);
unsafe
{
var array = (vec3 *)buffer.FirstElement();
for (int i = 0; i < normals.Count; i++)
{
array[i] = normals[i];
}
}
return(buffer.GetBufferPtr());
}
}
else if (bufferName == strNormal)
{
using (var buffer = new NormalBuffer(varNameInShader))
{
buffer.Alloc(normals.Count);
unsafe
{
var array = (vec3 *)buffer.FirstElement();
for (int i = 0; i < normals.Count; i++)
{
array[i] = normals[i];
}
}
return(buffer.GetBufferPtr());
}
}
else
{
return(null);
}
}
public PropertyBufferPtr GetProperty(string bufferName, string varNameInShader)
{
if (bufferName == strPosition)
{
using (var buffer = new PositionBuffer(varNameInShader))
{
buffer.Alloc(positions.Length);
unsafe
{
var array = (vec3 *)buffer.FirstElement();
for (int i = 0; i < positions.Length; i++)
{
array[i] = positions[i];
}
}
return(buffer.GetBufferPtr() as PropertyBufferPtr);
}
}
else if (bufferName == strColor)
{
using (var buffer = new ColorBuffer(varNameInShader))
{
buffer.Alloc(colors.Length);
unsafe
{
var array = (vec3 *)buffer.FirstElement();
for (int i = 0; i < colors.Length; i++)
{
array[i] = colors[i];
}
}
return(buffer.GetBufferPtr() as PropertyBufferPtr);
}
}
else if (bufferName == strNormal)
{
using (var buffer = new NormalBuffer(varNameInShader))
{
buffer.Alloc(normals.Length);
unsafe
{
var array = (vec3 *)buffer.FirstElement();
for (int i = 0; i < normals.Length; i++)
{
array[i] = normals[i];
}
}
return(buffer.GetBufferPtr() as PropertyBufferPtr);
}
}
else
{
return(null);
}
}
/// <summary>
/// Updates the buffers in GPU memory.
/// </summary>
/// <param name="gl">The GL.</param>
public void UpdateGeometry(OpenGL gl)
{
var verts = Vertices.SelectMany(v => v.to_array()).ToArray();
var norms = Normals.SelectMany(v => v.to_array()).ToArray();
VertexBuffer.BindBuffer(gl); // gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, VertexBufferId.Value);
VertexBuffer.SetBufferData(gl, OGLBufferDataTarget.ArrayBuffer, verts, Usage, 3); // gl.BufferData(OpenGL.GL_ARRAY_BUFFER, verts, (uint)Usage);
NormalBuffer.BindBuffer(gl); // gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, NormalBufferId.Value);
NormalBuffer.SetBufferData(gl, OGLBufferDataTarget.ArrayBuffer, norms, Usage, 3); // gl.BufferData(OpenGL.GL_ARRAY_BUFFER, norms, (uint)Usage);
}
void UpdateMesh()
{
Tribuffer.SetCounterValue(0);
// common
marchingCS.SetInt("GridRes", GridRes);
marchingCS.SetFloat("Time", Time.time);
marchingCS.SetFloat("NoiseInterval", NoiseInterval);
marchingCS.SetFloat("IsoLevel", IsoLevel);
marchingCS.SetBool("EnableSmooth", EnableSmooth);
marchingCS.SetVector("CenterPos", CenterPos);
marchingCS.SetFloat("GridW", GridW);
kernel = marchingCS.FindKernel("UpdateVoxel");
marchingCS.SetTexture(kernel, "VoxelTexture", VoxelTexture);
marchingCS.Dispatch(kernel, GridRes, GridRes, GridRes);
kernel = marchingCS.FindKernel("CalculateTriangle");
marchingCS.SetTexture(kernel, "VoxelTexture", VoxelTexture);
marchingCS.SetBuffer(kernel, "Tribuffer", Tribuffer);
marchingCS.Dispatch(kernel, GridRes / 8, GridRes / 8, GridRes / 8);
ComputeBuffer.CopyCount(Tribuffer, CountBuffer, 0);
int[] countArr = { 0 };
CountBuffer.GetData(countArr);
int count = countArr[0]; // the actual num
if (count != 0)
{
kernel = marchingCS.FindKernel("ExtractData");
marchingCS.SetInt("TriangleCount", count);
marchingCS.SetBuffer(kernel, "NewTriBuffer", Tribuffer);
marchingCS.SetBuffer(kernel, "PosBuffer", PosBuffer);
marchingCS.SetBuffer(kernel, "NormalBuffer", NormalBuffer);
marchingCS.SetBuffer(kernel, "IndexBuffer", IndexBuffer);
marchingCS.Dispatch(kernel, (int)Mathf.Ceil(count / 10f), 1, 1);
}
Vector3[] posArr = new Vector3[count * 3];
PosBuffer.GetData(posArr, 0, 0, count * 3);
Vector3[] normalArr = new Vector3[count * 3];
NormalBuffer.GetData(normalArr, 0, 0, count * 3);
int[] indexArr = new int[count * 3];
IndexBuffer.GetData(indexArr, 0, 0, count * 3);
mesh.Clear();
mesh.vertices = posArr;
mesh.normals = normalArr;
mesh.triangles = indexArr;
}
private void OnDisable()
{
Tribuffer.Release();
Tribuffer.Dispose();
PosBuffer.Release();
PosBuffer.Dispose();
NormalBuffer.Release();
NormalBuffer.Dispose();
IndexBuffer.Release();
IndexBuffer.Dispose();
CountBuffer.Release();
CountBuffer.Dispose();
}
public PropertyBufferPtr GetProperty(string bufferName, string varNameInShader)
{
if (bufferName == strPosition)
{
using (var positionBuffer = new PositionBuffer(varNameInShader))
{
positionBuffer.Alloc(1);
unsafe
{
var positionArray = (CubePosition *)positionBuffer.FirstElement();
positionArray[0] = this.position;
}
return(positionBuffer.GetBufferPtr() as PropertyBufferPtr);
}
}
else if (bufferName == strColor)
{
using (var colorBuffer = new ColorBuffer(varNameInShader))
{
colorBuffer.Alloc(1);
unsafe
{
var colorArray = (CubeColor *)colorBuffer.FirstElement();
colorArray[0] = this.color;
}
return(colorBuffer.GetBufferPtr() as PropertyBufferPtr);
}
}
else if (bufferName == strNormal)
{
using (var normalBuffer = new NormalBuffer(varNameInShader))
{
normalBuffer.Alloc(1);
unsafe
{
var normalArray = (CubeNormal *)normalBuffer.FirstElement();
normalArray[0] = this.normal;
}
return(normalBuffer.GetBufferPtr() as PropertyBufferPtr);
}
}
else
{
return(null);
}
}
private bool mDisposed = false; // To detect redundant calls
protected virtual void Dispose(bool disposing)
{
if (!mDisposed)
{
if (disposing)
{
PositionBuffer.Dispose();
NormalBuffer?.Dispose();
TextureCoordinateChannel0Buffer?.Dispose();
ElementBuffer.Dispose();
GL.DeleteVertexArray(Id);
}
mDisposed = true;
}
}
VertexBuffers.BufferPointer IModel.GetNormalBufferRenderer(string varNameInShader)
{
using (var buffer = new NormalBuffer(varNameInShader))
{
buffer.Alloc(this.normals.Length);
unsafe
{
vec3 *array = (vec3 *)buffer.FirstElement();
for (int i = 0; i < this.normals.Length; i++)
{
array[i] = this.normals[i];
}
}
return(buffer.GetRenderer());
}
}
protected void Dispose(bool disposing)
{
if (disposing)
{
PositionBuffer?.Dispose();
NormalBuffer?.Dispose();
TangentBuffer?.Dispose();
TexCoordBuffer?.Dispose();
TexCoord2Buffer?.Dispose();
ColorBuffer?.Dispose();
foreach (var indexTable in IndexTables)
{
indexTable.Dispose();
}
}
GL.DeleteVertexArray(VertexArrayID);
}
public void Unload()
{
if (VertexBuffer != null)
{
VertexBuffer.Unload();
}
if (TexCoordBuffer != null)
{
VertexBuffer.Unload();
}
if (NormalBuffer != null)
{
NormalBuffer.Unload();
}
if (IndexBuffer != null)
{
IndexBuffer.Unload();
}
}
public void Update(float[] vertices, uint[] indexes, float[] colors, float[] normals, float[] lighting, int vertexCount)
{
Bind();
ElementBuffer.Bind();
ElementBuffer.SetData(sizeof(uint) * indexes.Length, indexes);
VertexBuffer.Bind();
VertexBuffer.SetData(sizeof(float) * vertices.Length, vertices);
ColorBuffer.Bind();
ColorBuffer.SetData(sizeof(float) * colors.Length, colors);
NormalBuffer.Bind();
NormalBuffer.SetData(sizeof(float) * normals.Length, normals);
LightingBuffer.Bind();
LightingBuffer.SetData(sizeof(float) * lighting.Length, lighting);
VertexCount = vertexCount;
Unbind();
}
public void Dispose()
{
VertexBuffer.Dispose();
NormalBuffer.Dispose();
IndexBuffer.Dispose();
}