private void InitVertexes(OpenGL gl, UnmanagedArray <Vertex> vertexes, UnmanagedArray <ColorF> colorArray, UnmanagedArray <float> visibles)
{
uint[] vao = new uint[1];
gl.GenVertexArrays(vao.Length, vao);
gl.BindVertexArray(vao[0]);
this.vertexArrayObject = vao[0];
uint[] vboVertex = new uint[1];
gl.GenBuffers(vboVertex.Length, vboVertex);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, vboVertex[0]);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, vertexes.ByteLength, vertexes.Header, OpenGL.GL_STATIC_DRAW);
gl.VertexAttribPointer(ATTRIB_INDEX_POSITION, 3, OpenGL.GL_FLOAT, false, 0, IntPtr.Zero);
gl.EnableVertexAttribArray(ATTRIB_INDEX_POSITION);
this.vertexsBufferObject = vboVertex[0];
uint[] vboColor = new uint[1];
gl.GenBuffers(vboColor.Length, vboColor);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, vboColor[0]);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, colorArray.ByteLength, colorArray.Header, OpenGL.GL_DYNAMIC_DRAW);
gl.VertexAttribPointer(ATTRIB_INDEX_COLOUR, 4, OpenGL.GL_FLOAT, false, 0, IntPtr.Zero);
gl.EnableVertexAttribArray(ATTRIB_INDEX_COLOUR);
this.colorsBufferObject = vboColor[0];
uint[] vboVisual = new uint[1];
gl.GenBuffers(vboVisual.Length, vboVisual);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, vboVisual[0]);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, visibles.ByteLength, visibles.Header, OpenGL.GL_DYNAMIC_READ);
gl.VertexAttribPointer(ATTRIB_INDEX_VISIBLE, 1, OpenGL.GL_FLOAT, false, 0, IntPtr.Zero);
gl.EnableVertexAttribArray(ATTRIB_INDEX_VISIBLE);
this.visiblesBufferObject = vboVisual[0];
gl.BindVertexArray(0);
}
//private void InitVertexes(OpenGL gl, float [] vertexes, float[] colorArray)
//{
// uint ATTRIB_INDEX_POSITION = 0;
// uint ATTRIB_INDEX_COLOUR = 1;
// uint[] vao = new uint[1];
// gl.GenVertexArrays(vao.Length, vao);
// gl.BindVertexArray(vao[0]);
// uint[] vboVertex = new uint[1];
// gl.GenBuffers(vboVertex.Length, vboVertex);
// gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, vboVertex[0]);
// gl.BufferData(OpenGL.GL_ARRAY_BUFFER, vertexes, OpenGL.GL_STATIC_DRAW);
// gl.VertexAttribPointer(ATTRIB_INDEX_POSITION, 3, OpenGL.GL_FLOAT, false, 0, IntPtr.Zero);
// gl.EnableVertexAttribArray(ATTRIB_INDEX_POSITION);
// uint[] vboColor = new uint[1];
// gl.GenBuffers(vboColor.Length, vboColor);
// gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, vboColor[0]);
// gl.BufferData(OpenGL.GL_ARRAY_BUFFER, colorArray, OpenGL.GL_DYNAMIC_DRAW);
// gl.VertexAttribPointer(ATTRIB_INDEX_COLOUR, 4, OpenGL.GL_FLOAT, false, 0, IntPtr.Zero);
// gl.EnableVertexAttribArray(ATTRIB_INDEX_COLOUR);
// gl.BindVertexArray(0);
// gl.InvalidateBufferData(vboVertex[0]);
// gl.InvalidateBufferData(vboColor[0]);
// gl.DeleteBuffers(1, vboVertex);
// gl.DeleteBuffers(1, vboColor);
// gl.DeleteVertexArrays(1, vao);
//}
private void InitVertexes(OpenGL gl, UnmanagedArray <Vertex> vertexes, UnmanagedArray <ColorF> colorArray)
{
uint ATTRIB_INDEX_POSITION = 0;
uint ATTRIB_INDEX_COLOUR = 1;
uint[] vao = new uint[1];
gl.GenVertexArrays(vao.Length, vao);
gl.BindVertexArray(vao[0]);
uint[] vboVertex = new uint[1];
gl.GenBuffers(vboVertex.Length, vboVertex);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, vboVertex[0]);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, vertexes.ByteLength, vertexes.Header, OpenGL.GL_STATIC_DRAW);
gl.VertexAttribPointer(ATTRIB_INDEX_POSITION, 3, OpenGL.GL_FLOAT, false, 0, IntPtr.Zero);
gl.EnableVertexAttribArray(ATTRIB_INDEX_POSITION);
uint[] vboColor = new uint[1];
gl.GenBuffers(vboColor.Length, vboColor);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, vboColor[0]);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, colorArray.ByteLength, colorArray.Header, OpenGL.GL_DYNAMIC_DRAW);
gl.VertexAttribPointer(ATTRIB_INDEX_COLOUR, 4, OpenGL.GL_FLOAT, false, 0, IntPtr.Zero);
gl.EnableVertexAttribArray(ATTRIB_INDEX_COLOUR);
gl.BindVertexArray(0);
//gl.InvalidateBufferData(vboVertex[0]);
//gl.InvalidateBufferData(vboColor[0]);
gl.DeleteBuffers(1, vboVertex);
gl.DeleteBuffers(1, vboColor);
gl.DeleteVertexArrays(1, vao);
}
/// <summary>
/// Creation of vertex and color buffer from a List<Vertex>. This function reset all values once a new file is loaded
/// </summary>
private void createInitialBuffers()
{
// Get the OpenGL object.
OpenGL gl = openGLControl.OpenGL;
//create
if (l_sizes == null)
{
l_sizes = new List <int>(); //create list to store points of each buffer's list
}
l_sizes.Add(l_vertex.Count);
uint [] ids = new uint[2];
l_vboId.Add(ids);
//create buffers
gl.GenBuffers(2, l_vboId[0]);
//vertex buffer
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, l_vboId[0][0]);
IntPtr ptr1 = GCHandle.Alloc(l_vertex.ToArray().ToArray(), GCHandleType.Pinned).AddrOfPinnedObject();
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, sizeof(float) * l_vertex.Count * 3, ptr1, OpenGL.GL_STATIC_DRAW);
//color buffer
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, l_vboId[0][1]);
IntPtr ptr2 = GCHandle.Alloc(l_color.ToArray().ToArray(), GCHandleType.Pinned).AddrOfPinnedObject();
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, sizeof(float) * l_color.Count * 3, ptr2, OpenGL.GL_DYNAMIC_DRAW);
//unbind buffers
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, 0);
}
public void SetBufferData(OpenGL gl, IEnumerable <TransformationMatrix> transformations, OGLModelUsage usage = OGLModelUsage.StaticRead)
{
var transCount = transformations.Count();
// Validation.
if (transCount > Math.Pow(2, 24))
{
throw new OverflowException(
"This shader can't handle more than 2^24 transformations while " +
"using 24 bit colors.");
}
#region get indices
var indices = new ushort[transCount];
for (ushort i = 0; i < indices.Length; i++)
{
indices[i] = i; // Do all transformations once.
}
#endregion get indices
#region get transformations array
var stride = 16; // Transformation matrix is a 4x4 = 16.
var transformationsArray = new float[transCount * stride];
for (int i = 0; i < transCount; i++)
{
float[] transAsFloats = transformations.ElementAt(i).ResultMatrix.to_array();
for (int j = 0; j < stride; j++)
{
transformationsArray[i * stride + j] = transAsFloats[j];
}
}
#endregion get transformations array
#region get color array
int colorStride = 3;
var colorArray = new float[transCount * colorStride];
for (int i = 0; i < transCount; i++)
{
ulong id = transformations.ElementAt(i).UniqueId;
var color = new ColorF((uint)id);
colorArray[i * stride] = color.R;
colorArray[i * stride + 1] = color.G;
colorArray[i * stride + 2] = color.B;
}
#endregion get color array
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, _indicesBufferId.Value);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, indices, (uint)usage);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, _transformationsBufferId.Value);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, transformationsArray, (uint)usage);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, _colorsBufferId.Value);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, colorArray, (uint)usage);
}
protected void InitializeVAO(OpenGL gl, out uint[] vao, out BeginMode primitiveMode, out int vertexCount)
{
primitiveMode = BeginMode.Quads;
vertexCount = positions.Length;
vao = new uint[1];
gl.GenVertexArrays(1, vao);
gl.BindVertexArray(vao[0]);
// Create a vertex buffer for the vertex data.
{
uint[] ids = new uint[1];
gl.GenBuffers(1, ids);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, ids[0]);
var positionArray = new UnmanagedArray <vec3>(positions.Length);
for (int i = 0; i < positions.Length; i++)
{
positionArray[i] = positions[i];
}
uint positionLocation = (uint)shaderProgram.GetAttributeLocation(gl, strin_Position);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, positionArray.ByteLength, positionArray.Header, OpenGL.GL_STATIC_DRAW);
gl.VertexAttribPointer(positionLocation, 3, OpenGL.GL_FLOAT, false, 0, IntPtr.Zero);
gl.EnableVertexAttribArray(positionLocation);
positionArray.Dispose();
}
// Create a vertex buffer for the uv data.
{
uint[] ids = new uint[1];
gl.GenBuffers(1, ids);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, ids[0]);
var uvArray = new UnmanagedArray <vec2>(uvs.Length);
for (int i = 0; i < uvs.Length; i++)
{
uvArray[i] = uvs[i];
}
uint uvLocation = (uint)shaderProgram.GetAttributeLocation(gl, strin_uv);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, uvArray.ByteLength, uvArray.Header, OpenGL.GL_STATIC_DRAW);
gl.VertexAttribPointer(uvLocation, 2, OpenGL.GL_FLOAT, false, 0, IntPtr.Zero);
gl.EnableVertexAttribArray(uvLocation);
uvArray.Dispose();
}
// Unbind the vertex array, we've finished specifying data for it.
gl.BindVertexArray(0);
}
private void LoadSceneData(OpenGL gl)
{
var modelLoader = Model.Load("male_head");
modelLoader.Wait();
Shape = modelLoader.Result;
UI = new Legend();
gl.Enable(OpenGL.GL_DEPTH_TEST);
gl.Enable(OpenGL.GL_CULL_FACE);
gl.ClearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT);
gl.GenVertexArrays(ArrayIds.Length, ArrayIds);
// Model data
gl.BindVertexArray(ArrayIds[0]);
gl.GenBuffers(ModelBufferIds.Length, ModelBufferIds);
gl.BindBuffer(OpenGL.GL_ELEMENT_ARRAY_BUFFER, ModelBufferIds[0]);
gl.BufferData(OpenGL.GL_ELEMENT_ARRAY_BUFFER, Shape.Indices, OpenGL.GL_STATIC_DRAW);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, ModelBufferIds[1]);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, Shape.Data, OpenGL.GL_STATIC_DRAW);
gl.EnableVertexAttribArray(0);
gl.EnableVertexAttribArray(1);
gl.EnableVertexAttribArray(2);
gl.VertexAttribPointer(0, Shape.GetAttribSize(0), Shape.GetAttribType(0), Shape.ShouldAttribNormalize(0), Shape.GetAttribStride(0), Shape.GetAttribOffset(0));
gl.VertexAttribPointer(1, Shape.GetAttribSize(1), Shape.GetAttribType(1), Shape.ShouldAttribNormalize(1), Shape.GetAttribStride(1), Shape.GetAttribOffset(1));
gl.VertexAttribPointer(2, Shape.GetAttribSize(2), Shape.GetAttribType(2), Shape.ShouldAttribNormalize(2), Shape.GetAttribStride(2), Shape.GetAttribOffset(2));
// UI data
gl.BindVertexArray(ArrayIds[1]);
gl.GenBuffers(UIBufferIds.Length, UIBufferIds);
gl.BindBuffer(OpenGL.GL_ELEMENT_ARRAY_BUFFER, UIBufferIds[0]);
gl.BufferData(OpenGL.GL_ELEMENT_ARRAY_BUFFER, UI.Indices, OpenGL.GL_STATIC_DRAW);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, UIBufferIds[1]);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, UI.Data, OpenGL.GL_STATIC_DRAW);
gl.EnableVertexAttribArray(0);
gl.EnableVertexAttribArray(1);
gl.EnableVertexAttribArray(2);
gl.VertexAttribPointer(0, UI.GetAttribSize(0), UI.GetAttribType(0), UI.ShouldAttribNormalize(0), UI.GetAttribStride(0), UI.GetAttribOffset(0));
gl.VertexAttribPointer(1, UI.GetAttribSize(1), UI.GetAttribType(1), UI.ShouldAttribNormalize(1), UI.GetAttribStride(1), UI.GetAttribOffset(1));
gl.VertexAttribPointer(2, UI.GetAttribSize(2), UI.GetAttribType(2), UI.ShouldAttribNormalize(2), UI.GetAttribStride(2), UI.GetAttribOffset(2));
}
public void BufferData(OpenGL gl,
uint[] indices, float[] vertices, float[] normals,
float[] ambs, float[] diffs, float[] specs, float[] shinis,
float[] htColor)
{
gl.BindBuffer(_iboTarget, Ibo);
gl.BufferData(_iboTarget, indices, _usage);
gl.BindBuffer(_vboTarget, Position);
gl.BufferData(_vboTarget, vertices, _usage);
gl.BindBuffer(_vboTarget, Normal);
gl.BufferData(_vboTarget, normals, _usage);
gl.BindBuffer(_vboTarget, AmbientMaterial);
gl.BufferData(_vboTarget, ambs, _usage);
gl.BindBuffer(_vboTarget, DiffuseMaterial);
gl.BufferData(_vboTarget, diffs, _usage);
gl.BindBuffer(_vboTarget, SpecularMaterial);
gl.BufferData(_vboTarget, specs, _usage);
gl.BindBuffer(_vboTarget, ShininessValue);
gl.BufferData(_vboTarget, shinis, _usage);
gl.BindBuffer(_vboTarget, HTColorId);
gl.BufferData(_vboTarget, htColor, _usage);
}
protected void Initialise(OpenGL gl, string textureName)
{
sp = new ShaderProg(gl);
// Load the shader's & link them to the program
shaderProgram = sp.Loader("Shader.vert", "Shader.frag");
VBA = new uint[1];
gl.GenVertexArrays(1, VBA);
gl.BindVertexArray(VBA[0]);
// Allocate 2 buffers (verts & UV's)
VBO = new uint[2];
// Generate the 2 buffers
gl.GenBuffers(2, VBO);
// Bind the first buffer
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, VBO[0]);
// Copy the data from the Vertex array into the array buffer
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, vertices, OpenGL.GL_STATIC_DRAW);
// Align the Buffer to the Vertex shader layout location value (0)
gl.VertexAttribPointer(0, 3, OpenGL.GL_FLOAT, false, 3 * sizeof(float), IntPtr.Zero);
// Unbind the buffer
gl.EnableVertexAttribArray(0);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, 0);
// Bind the UV's buffer
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, VBO[1]);
// Copy the data from the Colour array into the array buffer
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, texCoords, OpenGL.GL_STATIC_DRAW);
// Align the Buffer to the Vertex shader layout location value (1)
gl.VertexAttribPointer(1, 2, OpenGL.GL_FLOAT, false, 2 * sizeof(float), IntPtr.Zero);
// Unbind the buffer
gl.EnableVertexAttribArray(1);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, 0);
// Unbind VBA
gl.BindVertexArray(0);
texture.Create(gl, textureName);
textureValue = texture.TextureName;
// Specify linear filtering.
gl.TexParameter(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_MIN_FILTER, OpenGL.GL_LINEAR);
gl.TexParameter(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_MAG_FILTER, OpenGL.GL_LINEAR);
// Create a model matrix to make the model a little bigger.
modelMatrix = glm.scale(new mat4(1.0f), new vec3(1.5f));//2.5
}
public void BufferData(OpenGL gl,
uint[] indices, float[] vertices, float[] colors)
{
if (indices != null)
{
gl.BindBuffer(_iboTarget, Ibo);
gl.BufferData(_iboTarget, indices, _usage);
}
gl.BindBuffer(_vboTarget, Position);
gl.BufferData(_vboTarget, vertices, _usage);
gl.BindBuffer(_vboTarget, ColorValue);
gl.BufferData(_vboTarget, colors, _usage);
}
public void InitializeGrid(float duration)
{
InitializeBuffers();
var linesCount = ((int)duration + 1) * SubSegmentsInUnit + 1;
_verticesCount = (linesCount + 1) * 2;
_linesCoordinates = new float[_verticesCount * 2];
for (int i = 0; i < linesCount; i++)
{
var yValue = 0.15f;
if (i % SubSegmentsInUnit == 0)
{
yValue *= 3;
}
_linesCoordinates[i * 4] = (float)i / SubSegmentsInUnit;
_linesCoordinates[i * 4 + 1] = -yValue;
_linesCoordinates[i * 4 + 2] = (float)i / SubSegmentsInUnit;
_linesCoordinates[i * 4 + 3] = yValue;
}
//x axis line
_linesCoordinates[linesCount * 4] = 0;
_linesCoordinates[linesCount * 4 + 1] = 0;
_linesCoordinates[linesCount * 4 + 2] = duration;
_linesCoordinates[linesCount * 4 + 3] = 0;
_gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, _vbo);
_gl.BufferData(OpenGL.GL_ARRAY_BUFFER, _linesCoordinates, OpenGL.GL_STATIC_DRAW);
_gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, OpenGLUtils.NO_BUFFER);
}
protected override void DoInitialize()
{
base.DoInitialize();
{
// velocity
var velocity_buffer = new uint[1];
OpenGL.GetDelegateFor <OpenGL.glGenBuffers>()(1, velocity_buffer);
OpenGL.BindBuffer(BufferTarget.ArrayBuffer, velocity_buffer[0]);
var velocities = new UnmanagedArray <vec4>(SunshineParticleModel.particleCount);
unsafe
{
var random = new Random();
var array = (vec4 *)velocities.Header.ToPointer();
for (int i = 0; i < SunshineParticleModel.particleCount; i++)
{
array[i] = new vec4(
(float)(random.NextDouble() - 0.5) * 0.2f,
(float)(random.NextDouble() - 0.5) * 0.2f,
(float)(random.NextDouble() - 0.5) * 0.2f,
0);
}
}
OpenGL.BufferData(BufferTarget.ArrayBuffer, velocities, BufferUsage.DynamicCopy);
velocities.Dispose();
//GL.GetDelegateFor<GL.glVertexAttribPointer>()(0, 4, GL.GL_FLOAT, false, 0, IntPtr.Zero);
//GL.GetDelegateFor<GL.glEnableVertexAttribArray>()(0);
//
OpenGL.BindBuffer(BufferTarget.ArrayBuffer, 0);
this.VelocityBufferPtrId = velocity_buffer[0];
}
this.PositionBufferPtr = this.bufferable.GetProperty(SunshineParticleModel.strPosition, null);
this.VertexArrayObject = this.vertexArrayObject;
}
public void SetData(OpenGL gl, uint attributeIndex, float[] rawData, bool isNormalised, int stride)
{
// Set the data, specify its shape and assign it to a vertex attribute (so shaders can bind to it).
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, rawData, OpenGL.GL_STATIC_DRAW);
gl.VertexAttribPointer(attributeIndex, stride, OpenGL.GL_FLOAT, isNormalised, 0, IntPtr.Zero);
gl.EnableVertexAttribArray(attributeIndex);
}
private VertexBufferArray CreateVertexBufferArray(OpenGL gl, PrimordialObject primordialObject)
{
vertexBufferArray = new VertexBufferArray();
vertexBufferArray.Create(gl);
vertexBufferArray.Bind(gl);
vertexDataBuffer = new VertexBuffer();
vertexDataBuffer.Create(gl);
vertexDataBuffer.Bind(gl);
// for(int i = 0; i<100; i++) {
// var sendDataTime = _stopwatch.ElapsedMilliseconds;
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, primordialObject.VertexData, OpenGL.GL_STATIC_DRAW);
// File.AppendAllText(fileTitle + "Data.txt", (_stopwatch.ElapsedMilliseconds - sendDataTime).ToString() + "\n");
// }
gl.VertexAttribPointer(attributeIndexPosition, 4, OpenGL.GL_FLOAT, false, 3 * 4 * sizeof(float), IntPtr.Zero);
gl.EnableVertexAttribArray(0);
gl.VertexAttribPointer(attributeIndexColour, 4, OpenGL.GL_FLOAT, false, 3 * 4 * sizeof(float), IntPtr.Add(IntPtr.Zero, 4 * sizeof(float)));
gl.EnableVertexAttribArray(1);
gl.VertexAttribPointer(attributeIndexNormal, 4, OpenGL.GL_FLOAT, false, 3 * 4 * sizeof(float), IntPtr.Add(IntPtr.Zero, 8 * sizeof(float)));
gl.EnableVertexAttribArray(2);
vertexDataBuffer.Unbind(gl);
vertexBufferArray.Unbind(gl);
return(vertexBufferArray);
}
public void Create(OpenGL gl, Viewport viewport)
{
_viewport = viewport;
GC = new GraphicsContext();
GC.GL = gl;
shader = new Shader(GC, "vertex.vert", "frag.frag");
float[] vertices =
{
-1f, -1f, 0f,
-1f, 1f, 0f,
1f, -1f, 0f,
1f, 1f, 0.0f,
};
gl.GenBuffers(1, VBO);
gl.GenVertexArrays(1, VAO);
gl.BindVertexArray(VAO[0]);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, VBO[0]);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, vertices, OpenGL.GL_STATIC_DRAW);
gl.VertexAttribPointer(0, 3, OpenGL.GL_FLOAT, false, 0, IntPtr.Zero);
gl.EnableVertexAttribArray(0);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, 0);
gl.BindVertexArray(0);
}
private void UpdateItem(int index)
{
numVertices = 0;
if (index >= 0 && index < Variables.Count)
{
ObservedVariable variable = Variables[index];
if (DebugHandler.Debugger.CurrentMode == dbgDebugMode.dbgBreakMode)
{
PointCloud pointCloud = null;
if (variable.MemberData == null)
{
pointCloud = DebugHandler.Load(variable.Name);
}
else
{
pointCloud = DebugHandler.Load(variable.Name, variable.MemberData);
}
if (pointCloud != null)
{
OpenGL gl = openGLControl.OpenGL;
vao.Bind(gl);
vbo.Bind(gl);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, pointCloud.vertices, OpenGL.GL_STATIC_DRAW);
numVertices = pointCloud.numVertices;
}
}
}
}
public void SetData(OpenGL gl, uint attributeIndex, float[] rawData, bool isNormalised, int stride)
{
// Set the data, specify its shape and assign it to a vertex attribute (so shaders can bind to it).
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, rawData, OpenGL.GL_STATIC_DRAW);
gl.VertexAttribPointer(attributeIndex, stride, OpenGL.GL_FLOAT, isNormalised, 0, IntPtr.Zero);
gl.EnableVertexAttribArray(attributeIndex);
}
protected uint CreateVertexBufferObject(uint mode, VertexBuffer bufferData, uint usage)
{
uint[] ids = new uint[1];
gl.GenBuffers(1, ids);
gl.BindBuffer(mode, ids[0]);
gl.BufferData(mode, bufferData.SizeInBytes, bufferData.Data, usage);
return(ids[0]);
}
public void Create(int bufferSize)
{
uint[] temp = new uint[1];
Device.GenBuffers(1, temp);
Device.BindBuffer(OpenGL.GL_SHADER_STORAGE_BUFFER, temp[0]);
Device.BufferData(OpenGL.GL_SHADER_STORAGE_BUFFER, bufferSize, IntPtr.Zero, OpenGL.GL_DYNAMIC_DRAW);
Device.BindBuffer(OpenGL.GL_SHADER_STORAGE_BUFFER, 0);
Buffer = temp[0];
}
private void InitTrianglesBuffer(OpenGL gl, UnmanagedArray <uint> TriangleStrip)
{
uint[] triangleBuffer = new uint[1];
gl.GenBuffers(triangleBuffer.Length, triangleBuffer);
gl.BindBuffer(OpenGL.GL_ELEMENT_ARRAY_BUFFER, triangleBuffer[0]);
gl.BufferData(OpenGL.GL_ELEMENT_ARRAY_BUFFER, TriangleStrip.ByteLength, TriangleStrip.Header, OpenGL.GL_STATIC_DRAW);
this.triangleIndexCount = TriangleStrip.Length;
this.triangleBufferObject = triangleBuffer[0];
}
/// <summary>
/// Calls the glBufferData(...). The data.Length will be used as value for Size property.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="target">The buffer data target.</param>
/// <param name="data">The data as float.</param>
/// <param name="usage">The usage.</param>
/// <param name="stride">The amount of floats that form one input variable.</param>
public virtual void SetBufferData(OpenGL gl, OGLBufferDataTarget target, float[] data, OGLModelUsage usage, int stride)
{
Size = data.Length / stride;
Stride = stride;
BufferDataType = OGLType.Float;
gl.BufferData((uint)target, data, (uint)usage);
}
/// <summary>
/// Function invoked when points and colors must be added to the render.
/// The size of lvertex and lcolor MUST BE THE SAME. Otherwise, there will be black points (no visible)
/// </summary>
/// <param name="lvertex"> List of vertexes to be added</param>
/// <param name="lcolor"> List of colors to be added</param>
private void addPointsAndColor(List <SharpGL.SceneGraph.Vertex> lvertex, List <SharpGL.SceneGraph.Vertex> lcolor)
{
OpenGL gl = openGLControl.OpenGL;
//append new points to the existing list (if exists)
if (l_vertex == null)
{
l_vertex = new List <SharpGL.SceneGraph.Vertex>();
}
l_vertex.AddRange(lvertex);
//append new colors to the existing list (if exists)
if (l_color == null)
{
l_color = new List <SharpGL.SceneGraph.Vertex>();
}
l_color.AddRange(lcolor);
//set new size of the new list (just to render, if it exists)
if (l_sizes == null)
{
l_sizes = new List <int>();
}
l_sizes.Add(lvertex.Count);
uint[] ids = new uint[2];
int pos = l_vboId.Count;
//add ids to the existing list
if (l_vboId == null)
{
l_vboId = new List <uint[]>();
}
l_vboId.Add(ids);
gl.GenBuffers(2, l_vboId[pos]);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, l_vboId[pos][0]);
IntPtr ptr1 = GCHandle.Alloc(lvertex.ToArray().ToArray(), GCHandleType.Pinned).AddrOfPinnedObject();
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, sizeof(float) * lvertex.Count * 3, ptr1, OpenGL.GL_STATIC_DRAW);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, l_vboId[pos][1]);
IntPtr ptr2 = GCHandle.Alloc(lcolor.ToArray().ToArray(), GCHandleType.Pinned).AddrOfPinnedObject();
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, sizeof(float) * lcolor.Count * 3, ptr2, OpenGL.GL_DYNAMIC_DRAW);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, 0);
}
public SpriteBatch(OpenGL gl, int triCount = 4000)
{
this.gl = gl;
var textureLoaded = this.white1x1Tex.Create(gl, Properties.Resources.white1x1);
if (textureLoaded == false)
{
throw new Exception("white1x1Tex loading failed");
}
_shaderProgram.Create(gl, Properties.Resources.SimpleVS, Properties.Resources.SimplePS, null);
_shaderProgram.BindAttributeLocation(gl, VertexAttributes.Pos, nameof(VertexAttributes.Pos));
_shaderProgram.BindAttributeLocation(gl, VertexAttributes.Color, nameof(VertexAttributes.Color));
_shaderProgram.BindAttributeLocation(gl, VertexAttributes.TexCoord, nameof(VertexAttributes.TexCoord));
_shaderProgram.Bind(gl);
vertices = new VertexPosTexColor[triCount * 3];
indices = new int[triCount * 3];
gl.GenBuffers(1, vertexBufferIds);
gl.BindBuffer(GL_ARRAY_BUFFER, vertexBufferIds[0]);
gl.BufferData(GL_ARRAY_BUFFER, vertices.Length * VertexPosTexColor.SizeOf, IntPtr.Zero, GL_DYNAMIC_DRAW);
gl.GenBuffers(1, indexBufferIds);
gl.BindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBufferIds[0]);
gl.BufferData(GL_ELEMENT_ARRAY_BUFFER, indices.Length * sizeof(int), IntPtr.Zero, GL_DYNAMIC_DRAW);
gl.GenVertexArrays(1, vaos);
gl.BindVertexArray(vaos[0]);
gl.EnableVertexAttribArray(VertexAttributes.Pos);
gl.VertexAttribPointer(VertexAttributes.Pos, 3, GL_FLOAT, false, VertexPosTexColor.SizeOf, new IntPtr(0));
gl.EnableVertexAttribArray(VertexAttributes.Color);
gl.VertexAttribPointer(VertexAttributes.Color, 4, GL_UNSIGNED_BYTE, true, VertexPosTexColor.SizeOf, new IntPtr(3 * sizeof(float)));
gl.EnableVertexAttribArray(VertexAttributes.TexCoord);
gl.VertexAttribPointer(VertexAttributes.TexCoord, 2, GL_FLOAT, false, VertexPosTexColor.SizeOf, new IntPtr(3 * sizeof(float) + 4 * sizeof(byte)));
}
public override uint CreateVBO(UsageType usage)
{
OpenGL gl = new OpenGL();
uint[] buffers = new uint[1];
gl.GenBuffers(1, buffers);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, buffers[0]);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, this.SizeInBytes, this.Data, (uint)usage);
return(buffers[0]);
}
private void FlushVertexArray(OpenGL gl, int vertexCount, int triangleCount)
{
if (vertexCount == 0 || triangleCount == 0)
{
return;
}
gl.PushMatrix();
gl.Translate(0, -300, 0);
var bufferArrayData = vertexArray;
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, _vertexBuffer);
if (_bufferSize < sizeof(float) * vertexCount * 8)
{
gl.BufferData(
OpenGL.GL_ARRAY_BUFFER,
sizeof(float) * vertexCount * 8,
Marshal.UnsafeAddrOfPinnedArrayElement(bufferArrayData, 0),
OpenGL.GL_DYNAMIC_DRAW);
}
else
{
gl.BufferSubData(
OpenGL.GL_ARRAY_BUFFER,
0,
sizeof(float) * vertexCount * 8,
Marshal.UnsafeAddrOfPinnedArrayElement(bufferArrayData, 0));
}
_bufferSize = Math.Max(sizeof(float) * vertexCount * 8, _bufferSize);
gl.EnableClientState(OpenGL.GL_VERTEX_ARRAY);
gl.EnableClientState(OpenGL.GL_COLOR_ARRAY);
gl.EnableClientState(OpenGL.GL_TEXTURE_COORD_ARRAY);
gl.VertexPointer(2, OpenGL.GL_FLOAT, 8 * sizeof(float), (IntPtr)0);
gl.ColorPointer(4, OpenGL.GL_FLOAT, 8 * sizeof(float), (IntPtr)(2 * sizeof(float)));
gl.TexCoordPointer(2, OpenGL.GL_FLOAT, 8 * sizeof(float), (IntPtr)(6 * sizeof(float)));
gl.DrawElements(
OpenGL.GL_TRIANGLES, triangleCount,
OpenGL.GL_UNSIGNED_SHORT,
Marshal.UnsafeAddrOfPinnedArrayElement(triangles, 0));
gl.DisableClientState(OpenGL.GL_VERTEX_ARRAY);
gl.DisableClientState(OpenGL.GL_COLOR_ARRAY);
gl.DisableClientState(OpenGL.GL_TEXTURE_COORD_ARRAY);
gl.PopMatrix();
}
public static void SetArrayData(OpenGL gl, float[] data, int sizeInBytes, uint openGlDrawType)
{
unsafe
{
fixed(float *pointerToData = data)
{
IntPtr pointerToVerticesData = new IntPtr((void *)pointerToData);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, sizeInBytes, pointerToVerticesData, openGlDrawType);
}
}
}
public static void SetElementData(OpenGL gl, uint[] data, int sizeInBytes, uint openGlDrawType)
{
unsafe
{
fixed(uint *pointerToData = data)
{
IntPtr pointerToIndicesData = new IntPtr((void *)pointerToData);
gl.BufferData(OpenGL.GL_ELEMENT_ARRAY_BUFFER, sizeInBytes, pointerToIndicesData, openGlDrawType);
pointerToIndicesData.ToInt32();
}
}
}
/// <summary>
/// Calls the glBufferData(...). The size will be used as value for Size property.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="target">The buffer data target.</param>
/// <param name="size">The size of the data buffer.</param>
/// <param name="data">The pointer to the data in memory.</param>
/// <param name="usage">The usage.</param>
public virtual void SetBufferData(OpenGL gl, OGLBufferDataTarget target, int size, IntPtr data, OGLModelUsage usage, int stride, OGLType bufferDataType,
bool bind = false, OGLBindBufferTarget bindTarget = OGLBindBufferTarget.ArrayBuffer)
{
Size = size / stride;
Stride = stride;
if (bind)
{
BindBuffer(gl, bindTarget);
}
gl.BufferData((uint)target, size, data, (uint)usage);
}
// load given vertices into VBO
private static void loadVertices(float[] vertices)
{
int size = Marshal.SizeOf(vertices[0]) * vertices.Length;
IntPtr handle = Marshal.AllocHGlobal(size);
try {
Marshal.Copy(vertices, 0, handle, vertices.Length);
var unmanagedSize = new IntPtr(size);
OpenGL.BufferData(OpenGL.GL_ARRAY_BUFFER, unmanagedSize, handle, OpenGL.GL_STATIC_DRAW);
}
finally {
Marshal.FreeHGlobal(handle);
}
}
static void Main(string[] args)
{
try
{
window = new Window("Text", 800, 600, false);
//float[] vert = new float[]{
// -0.5f,-0.5f,0.0f,
// -0.5f, 0.5f,0.0f,
// 0.5f, 0.5f,0.0f,
// 0.5f, 0.5f,0.0f,
// 0.5f,-0.5f,0.0f,
// -0.5f,-0.5f,0.0f,
//};
float[] vert = new float[] {
0, 0, 0,
8, 0, 0,
0, 3, 0,
0, 3, 0,
8, 3, 0,
8, 0, 0,
};
UInt32[] vbo = new UInt32[2];
gl.GenBuffers(1, vbo);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, vbo[0]);
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, vert, OpenGL.GL_STATIC_DRAW);
gl.VertexAttribPointer(0, 3, OpenGL.GL_FLOAT, false, 0, IntPtr.Zero);
gl.EnableVertexAttribArray(0);
shader s = new shader("minimal.vert", "minimal.frag");
s.enable();
s.SetUniformMatrix("pr_matrix", Matrix.CreateOrthographic(0.0, 16.0, -1.0, 1.0));
s.SetUniformMatrix("ml_matrix", Matrix.CreateTranslation(new Vector3(2, 2, 0)));
s.SetUniform("light_pos", new Vector2(4, 1.5f));
s.SetUniform("colour", new Vector4(0f, 0.0f, 1f, 1.0f));
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
window.SetUpdate(EventUpdate, update);
}
// load given indices into EBO
private void loadIndices(uint[] indices)
{
byte[] data = indices.ToByteArray();
int size = Marshal.SizeOf(data[0]) * data.Length;
IntPtr handle = Marshal.AllocHGlobal(size);
try {
Marshal.Copy(data, 0, handle, data.Length);
var unmanagedSize = new IntPtr(size);
OpenGL.BufferData(OpenGL.GL_ELEMENT_ARRAY_BUFFER, unmanagedSize, handle, OpenGL.GL_STATIC_DRAW);
}
finally {
Marshal.FreeHGlobal(handle);
}
}
/// <summary>
/// Calls the glBufferData(...). The data.Length will be used as value for Size property.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="target">The buffer data target.</param>
/// <param name="data">The data as uint.</param>
/// <param name="usage">The usage.</param>
/// <param name="stride">The amount of uint that form one input variable.</param>
public virtual void SetBufferData(OpenGL gl, OGLBufferDataTarget target, uint[] data, OGLModelUsage usage, int stride)
{
Size = data.Length / stride;
Stride = stride;
BufferDataType = OGLType.UnsignedInt;
var dataSize = data.Length * sizeof(uint);
IntPtr newDataPtr = Marshal.AllocHGlobal(dataSize);
var intData = new int[data.Length];
Buffer.BlockCopy(data, 0, intData, 0, dataSize);
Marshal.Copy(intData, 0, newDataPtr, data.Length);
gl.BufferData((uint)target, dataSize, newDataPtr, (uint)usage);
}
public void SetData(OpenGL gl, ushort[] rawData)
{
gl.BufferData(OpenGL.GL_ELEMENT_ARRAY_BUFFER, rawData, OpenGL.GL_STATIC_DRAW);
}
