/// <summary>
/// Loads the model from file.
/// </summary>
/// <param name="filePath">The file path.</param>
/// <returns></returns>
public override Model LoadModel(string filePath)
{
Model result = null;
ObjLoader loader = new ObjLoader();
MeshData modelData = loader.LoadFile(filePath);
if (modelData != null)
{
result = new Model() {
Data = loader.LoadFile(filePath)
};
}
return result;
}
private void AddBuffer(Model model, OpenGLEventArgs args, int bufferNum)
{
OpenGL gl = args.OpenGL;
gl.Enable(OpenGL.GL_DEPTH_TEST);
gl.ShadeModel(OpenGL.GL_SMOOTH);
gl.Hint(OpenGL.GL_PERSPECTIVE_CORRECTION_HINT, OpenGL.GL_NICEST);
vertices.Add(new float[model.Data.Vertices.Count() * 3]);
colors.Add(new byte[model.Data.Vertices.Count() * 3]);
indices.Add(new uint[model.Data.Tris.Count() * 3]);
normals.Add(new float[model.Data.Tris.Count() * 9]);
texCoords.Add(new float[model.Data.Tris.Count() * 6]);
int i = 0;
foreach (var vertice in model.Data.Vertices)
{
vertices.ElementAt(bufferNum)[i] = (float)vertice.X;
vertices.ElementAt(bufferNum)[i + 1] = (float)vertice.Y;
vertices.ElementAt(bufferNum)[i + 2] = (float)vertice.Z;
if (bufferNum < 4)
{
colors.ElementAt(bufferNum)[i] = 255;
colors.ElementAt(bufferNum)[i + 1] = 204;
colors.ElementAt(bufferNum)[i + 2] = 51;
}
else
{
colors.ElementAt(bufferNum)[i] = 177;
colors.ElementAt(bufferNum)[i + 1] = 177;
colors.ElementAt(bufferNum)[i + 2] = 139;
}
i += 3;
}
i = 0;
int j = 0;
foreach (var tri in model.Data.Tris)
{
//normals
normals.ElementAt(bufferNum)[i] = (float)model.Data.Normals.ElementAt(tri.P1.Normal).X;
normals.ElementAt(bufferNum)[i + 1] = (float)model.Data.Normals.ElementAt(tri.P1.Normal).Y;
normals.ElementAt(bufferNum)[i + 2] = (float)model.Data.Normals.ElementAt(tri.P1.Normal).Z;
//textures
texCoords.ElementAt(bufferNum)[j] = (float)model.Data.TexCoords.ElementAt(tri.P1.TexCoord).X;
texCoords.ElementAt(bufferNum)[j + 1] = (float)model.Data.TexCoords.ElementAt(tri.P1.TexCoord).Y;
i += 3;
j += 2;
//normals
normals.ElementAt(bufferNum)[i] = (float)model.Data.Normals.ElementAt(tri.P2.Normal).X;
normals.ElementAt(bufferNum)[i + 1] = (float)model.Data.Normals.ElementAt(tri.P2.Normal).Y;
normals.ElementAt(bufferNum)[i + 2] = (float)model.Data.Normals.ElementAt(tri.P2.Normal).Z;
//textures
texCoords.ElementAt(bufferNum)[j] = (float)model.Data.TexCoords.ElementAt(tri.P2.TexCoord).X;
texCoords.ElementAt(bufferNum)[j + 1] = (float)model.Data.TexCoords.ElementAt(tri.P2.TexCoord).Y;
i += 3;
j += 2;
//normals
normals.ElementAt(bufferNum)[i] = (float)model.Data.Normals.ElementAt(tri.P3.Normal).X;
normals.ElementAt(bufferNum)[i + 1] = (float)model.Data.Normals.ElementAt(tri.P3.Normal).Y;
normals.ElementAt(bufferNum)[i + 2] = (float)model.Data.Normals.ElementAt(tri.P3.Normal).Z;
//textures
texCoords.ElementAt(bufferNum)[j] = (float)model.Data.TexCoords.ElementAt(tri.P3.TexCoord).X;
texCoords.ElementAt(bufferNum)[j + 1] = (float)model.Data.TexCoords.ElementAt(tri.P3.TexCoord).Y;
i += 3;
j += 2;
}
i = 0;
foreach (var ind in model.Data.Tris)
{
indices.ElementAt(bufferNum)[i] = (uint)ind.P1.Vertex;
indices.ElementAt(bufferNum)[i + 1] = (uint)ind.P2.Vertex;
indices.ElementAt(bufferNum)[i + 2] = (uint)ind.P3.Vertex;
i += 3;
}
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, vertexBufferObjectIds[bufferNum]);
unsafe
{
fixed (float* verts = vertices.ElementAt(bufferNum))
{
var ptr = new IntPtr(verts);
int size = vertices.ElementAt(bufferNum).Length * sizeof(float);
IntPtr nullPointer = new IntPtr();
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, size, nullPointer, OpenGL.GL_STREAM_DRAW);
gl.BufferSubData(OpenGL.GL_ARRAY_BUFFER, 0, size, ptr);
}
}
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, colorBufferObjectIds[bufferNum]);
unsafe
{
fixed (byte* color = colors.ElementAt(bufferNum))
{
var ptr = new IntPtr(color);
int size = colors.ElementAt(bufferNum).Length * sizeof(byte);
IntPtr nullPointer = new IntPtr();
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, size, nullPointer, OpenGL.GL_STREAM_DRAW);
gl.BufferSubData(OpenGL.GL_ARRAY_BUFFER, 0, size, ptr);
}
}
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, normalBufferObjectIds[bufferNum]);
unsafe
{
fixed (float* normal = normals.ElementAt(bufferNum))
{
var ptr = new IntPtr(normal);
int size = normals.ElementAt(bufferNum).Length * sizeof(float);
IntPtr nullPointer = new IntPtr();
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, size, nullPointer, OpenGL.GL_STATIC_DRAW);
gl.BufferSubData(OpenGL.GL_ARRAY_BUFFER, 0, size, ptr);
}
}
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, texCoordsBufferObjectIds[bufferNum]);
unsafe
{
fixed (float* texCoord = texCoords.ElementAt(bufferNum))
{
var ptr = new IntPtr(texCoord);
int size = texCoords.ElementAt(bufferNum).Length * sizeof(float);
IntPtr nullPointer = new IntPtr();
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, size, nullPointer, OpenGL.GL_STATIC_DRAW);
gl.BufferSubData(OpenGL.GL_ARRAY_BUFFER, 0, size, ptr);
}
}
}
/// <summary>
/// Handles the OpenGLInitialized event of the OpenGLControl control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="args">The <see cref="SharpGL.SceneGraph.OpenGLEventArgs"/> instance containing the event data.</param>
private void OpenGLControl_OpenGLInitialized(object sender, OpenGLEventArgs args)
{
ObjModelLoader modelLoader = new ObjModelLoader();
towerModel = modelLoader.LoadModel(@"..\..\Resources\Tower crane_tower.obj");
boomModel = modelLoader.LoadModel(@"..\..\Resources\Tower crane_boomWithCabin.obj");
hookModel = modelLoader.LoadModel(@"..\..\Resources\Tower crane_hook.obj");
platformModel = modelLoader.LoadModel(@"..\..\Resources\Tower crane_platform.obj");
groundModel = modelLoader.LoadModel(@"..\..\Resources\ground.obj");
skySphereModel = modelLoader.LoadModel(@"..\..\Resources\sphere.obj");
OpenGL gl = args.OpenGL;
groundTexture.Create(gl, @"..\..\Resources\ground-texture04.jpg");
skyTexture.Create(gl, @"..\..\Resources\sky-tex3.jpg");
//Create the shadow map texture
gl.GenTextures(1, shadowTex);
gl.BindTexture(OpenGL.GL_TEXTURE_2D, shadowTex[0]);
gl.TexParameter(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_MIN_FILTER,OpenGL. GL_NEAREST);
gl.TexParameter(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_MAG_FILTER, OpenGL.GL_NEAREST);
gl.TexParameter(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_WRAP_S, OpenGL.GL_CLAMP);
gl.TexParameter(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_WRAP_T, OpenGL.GL_CLAMP);
gl.TexImage2D(OpenGL.GL_TEXTURE_2D, 0, OpenGL.GL_DEPTH_COMPONENT, 1366, 768, 0, OpenGL.GL_DEPTH_COMPONENT, OpenGL.GL_UNSIGNED_BYTE, null);
//shadowTex = Shadow(args, (int)Application.Current.MainWindow.Height, (int)Application.Current.MainWindow.Width);
//// Framebuffer Object (FBO) для рендера в него буфера глубины
//uint[] depthFBO = new uint[1];
//// переменная для получения состояния FBO
//uint fboStatus;
//// создаем FBO для рендера глубины в текстуру
//gl.GenFramebuffersEXT(1, depthFBO);
//// делаем созданный FBO текущим
//gl.BindFramebufferEXT(OpenGL.GL_FRAMEBUFFER_EXT, depthFBO[0]);
//// отключаем вывод цвета в текущий FBO
//gl.DrawBuffer(OpenGL.GL_NONE);
//gl.ReadBuffer(OpenGL.GL_NONE);
//// указываем для текущего FBO текстуру, куда следует производить рендер глубины
//gl.FramebufferTexture(OpenGL.GL_FRAMEBUFFER_EXT, OpenGL.GL_DEPTH_ATTACHMENT_EXT, shadowTex[0], 0);
//// проверим текущий FBO на корректность
//if ((fboStatus = gl.CheckFramebufferStatusEXT(OpenGL.GL_FRAMEBUFFER_EXT)) != OpenGL.GL_FRAMEBUFFER_COMPLETE_EXT)
//{
// return;
//}
//// возвращаем FBO по-умолчанию
//gl.BindFramebufferEXT(OpenGL.GL_FRAMEBUFFER_EXT, 0);
//// установим активный FBO
//gl.BindFramebufferEXT(OpenGL.GL_FRAMEBUFFER_EXT, depthFBO[0]);
//// размер вьюпорта должен совпадать с размером текстуры для хранения буфера глубины
//gl.Viewport(0, 0, (int)Application.Current.MainWindow.Height, (int)Application.Current.MainWindow.Width);
//// отключаем вывод цвета
////gl.ColorMask((byte)OpenGL.GL_FALSE, (byte)OpenGL.GL_FALSE, (byte)OpenGL.GL_FALSE, (byte)OpenGL.GL_FALSE);
//// включаем вывод буфера глубины
//gl.DepthMask((byte)OpenGL.GL_TRUE);
//// очищаем буфер глубины перед его заполнением
//gl.Clear(OpenGL.GL_DEPTH_BUFFER_BIT);
//// отключаем отображение внешних граней объекта, оставляя внутренние
//gl.CullFace(OpenGL.GL_FRONT);
gl.Enable(OpenGL.GL_COLOR_MATERIAL);
gl.Enable(OpenGL.GL_LIGHTING);
gl.LightModel(OpenGL.GL_LIGHT_MODEL_TWO_SIDE, OpenGL.GL_TRUE);
gl.Enable(OpenGL.GL_NORMALIZE);
gl.Enable(OpenGL.GL_LIGHT1);
gl.Light(OpenGL.GL_LIGHT1, OpenGL.GL_DIFFUSE, light1Diffuse);
gl.Light(OpenGL.GL_LIGHT1, OpenGL.GL_POSITION, light1Position);
gl.Enable(OpenGL.GL_TEXTURE_2D);
gl.GenBuffers(modelsCount, vertexBufferObjectIds);
gl.GenBuffers(modelsCount, normalBufferObjectIds);
gl.GenBuffers(modelsCount, colorBufferObjectIds);
gl.GenBuffers(modelsCount, texCoordsBufferObjectIds);
AddBuffer(towerModel, args, 0);
AddBuffer(boomModel, args, 1);
AddBuffer(hookModel, args, 2);
AddBuffer(platformModel, args, 3);
AddBuffer(groundModel, args, 4);
AddBuffer(skySphereModel, args, 5);
}