public BackgroundRenderer(IBackground background)
{
_program = new ShaderProgram("Shaders/Background.vert", "Shaders/Background.frag");
_vao = new VAO();
var flatBuffer = new VBO();
using (Bind.These(_vao, flatBuffer))
{
var data = new List <float>();
data.AddRange(new float[] { -1, -1 });
data.AddRange(background.BottomLeft.ToFloatArray());
data.AddRange(new float[] { 1, -1 });
data.AddRange(background.BottomRight.ToFloatArray());
data.AddRange(new float[] { 1, 1 });
data.AddRange(background.TopRight.ToFloatArray());
data.AddRange(new float[] { -1, 1 });
data.AddRange(background.TopLeft.ToFloatArray());
var flatData = data.ToArray();
flatBuffer.Update(flatData, flatData.Length * sizeof(float));
const int stride = sizeof(float) * 6;
GL.EnableVertexAttribArray(0);
GL.VertexAttribPointer(0, 2, VertexAttribPointerType.Float, false, stride, new IntPtr(0));
GL.EnableVertexAttribArray(1);
GL.VertexAttribPointer(1, 4, VertexAttribPointerType.Float, false, stride, new IntPtr(sizeof(float) * 2));
}
}
public PolygonLayerRenderer(IEnumerable <PolygonLayer> polygons)
{
_program = new ShaderProgram("Shaders/PolygonModel.vert", "Shaders/PolygonModel.frag");
var polygonModel = polygons.First();
_vao = new VAO();
var flatBuffer = new VBO();
using (Bind.These(_vao, flatBuffer))
{
var data = new List <float>();
foreach (var edge in polygonModel.Polygons.SelectMany(p => p.Edges))
{
count++;
data.AddRange(edge.Start.Position.ToArray().Select(d => (float)d));
data.AddRange(edge.Start.Color.ToFloatArray());
data.AddRange(edge.End.Position.ToArray().Select(d => (float)d));
data.AddRange(Color.Aqua.ToFloatArray());
}
var flatData = data.ToArray();
flatBuffer.Update(flatData, flatData.Length * sizeof(float));
const int stride = sizeof(float) * 7;
GL.EnableVertexAttribArray(0);
GL.VertexAttribPointer(0, 3, VertexAttribPointerType.Float, false, stride, new IntPtr(0));
GL.EnableVertexAttribArray(1);
GL.VertexAttribPointer(1, 4, VertexAttribPointerType.Float, false, stride, new IntPtr(sizeof(float) * 3));
}
}
protected override int Submit(Instance[] instances, int count)
{
Array.Sort(keys, instances, 0, count);
var ncalls = 0;
var i = 0;
while (i < count)
{
// find the range of the group.
var k = keys[i].key;
var j = i;
while (j < count && k.CompareTo(keys[j].key) == 0)
{
j++;
}
var range = j - i;
// copy the range to the gpu.
VBO.Update(instances, i, 0, range);
// submit the render call
Submit(k, range);
ncalls++;
i = j;
}
return(ncalls);
}
public OctreeRenderer(OctreeModel model, OpenGL gl)
{
_gl = gl;
_octreeProgram = new OctreeShader(gl);
_cubes = new VAO(gl);
_cubeBuffer = new VBO(gl);
var filled = model.Node.Flatten().Where(o => o.State == NodeState.Filled).ToArray();
_count = filled.Length;
var list = new List <float>();
foreach (var octreeNode in filled)
{
list.AddRange(octreeNode.Center.ToArray().Select(d => (float)d));
list.AddRange(new[]
{
(float)MathsHelper.Map(octreeNode.Color.R, 0, 255, 0, 1),
(float)MathsHelper.Map(octreeNode.Color.G, 0, 255, 0, 1),
(float)MathsHelper.Map(octreeNode.Color.B, 0, 255, 0, 1),
(float)MathsHelper.Map(octreeNode.Color.A, 0, 255, 0, 1),
(float)octreeNode.Size
});
}
var vertices = list.ToArray();
using (new Bind(_cubes))
using (new Bind(_cubeBuffer))
{
_cubeBuffer.Update(vertices, vertices.Length * sizeof(float));
const int stride = sizeof(float) * 8;
gl.EnableVertexAttribArray(0);
gl.VertexAttribPointer(0, 3, OpenGL.GL_FLOAT, false, stride, new IntPtr(0));
gl.EnableVertexAttribArray(1);
gl.VertexAttribPointer(1, 4, OpenGL.GL_FLOAT, false, stride, new IntPtr(sizeof(float) * 3));
gl.EnableVertexAttribArray(2);
gl.VertexAttribPointer(2, 1, OpenGL.GL_FLOAT, false, stride, new IntPtr(sizeof(float) * 7));
gl.BindVertexArray(0);
}
}
public GUIRenderer()
{
Texture = new Texture();
_program = new ShaderProgram("Shaders/GUI.vert", "Shaders/GUI.frag");
_vao = new VAO();
var flatBuffer = new VBO();
using (Bind.These(_vao, flatBuffer))
{
var flatData = new float[] { -1, -1, 0, 1, 1, -1, 1, 1, 1, 1, 1, 0, -1, 1, 0, 0 };
flatBuffer.Update(flatData, flatData.Length * sizeof(float));
const int stride = sizeof(float) * 4;
GL.EnableVertexAttribArray(0);
GL.VertexAttribPointer(0, 2, VertexAttribPointerType.Float, false, stride, new IntPtr(0));
GL.EnableVertexAttribArray(1);
GL.VertexAttribPointer(1, 2, VertexAttribPointerType.Float, false, stride, new IntPtr(sizeof(float) * 2));
}
}
public BackgroundRenderer(OpenGL gl)
{
_gl = gl;
_program = new BackgroundShader(gl);
_flat = new VAO(gl);
_flatBuffer = new VBO(gl);
using (new Bind(_flat))
using (new Bind(_flatBuffer))
{
var flatData = new float[] { -1, -1, 1, -1, -1, 1, 1, 1, };
_flatBuffer.Update(flatData, flatData.Length * sizeof(float));
gl.EnableVertexAttribArray(0);
gl.VertexAttribPointer(0, 2, OpenGL.GL_FLOAT, false, 0, new IntPtr(0));
gl.BindVertexArray(0);
}
}
public PostProcesser(OpenGL gl, int width, int height)
{
_gl = gl;
_fbo = new FBO(gl, width, height);
_flatProgram = new FlatShader(gl);
_flat = new VAO(gl);
_flatBuffer = new VBO(gl);
using (new Bind(_flat))
using (new Bind(_flatBuffer))
{
var flatData = new float[] { -1, -1, 1, -1, -1, 1, 1, 1, };
_flatBuffer.Update(flatData, flatData.Length * sizeof(float));
gl.EnableVertexAttribArray(0);
gl.VertexAttribPointer(0, 2, OpenGL.GL_FLOAT, false, 0, new IntPtr(0));
gl.BindVertexArray(0);
}
}
public PointRenderer(OpenGL gl, IStaticScene scene)
{
_gl = gl;
_scene = scene;
_program = new ShaderBindable(gl, "Shaders/Point.vert", "Shaders/Point.frag");
_vao = new VAO(gl);
_vbo = new VBO(gl);
using (Bind.These(_vao, _vbo))
{
count = scene.Points.Count;
_vbo.Update(scene.Points.Select(p => new Vertex(p.Position, p.Color)));
gl.EnableVertexAttribArray(0);
gl.VertexAttribPointer(0, 3, OpenGL.GL_FLOAT, false, Vertex.Stride, new IntPtr(0));
gl.EnableVertexAttribArray(1);
gl.VertexAttribPointer(1, 4, OpenGL.GL_FLOAT, false, Vertex.Stride, new IntPtr(sizeof(float) * 3));
}
}
public BackgroundRenderer(OpenGL gl, IBackground background)
{
_gl = gl;
_program = new ShaderBindable(gl, "Shaders/Background.vert", "Shaders/Background.frag");
_vao = new VAO(gl);
var flatBuffer = new VBO(gl);
using (new Bind(_vao))
using (new Bind(flatBuffer))
{
var data = new List <float>();
data.AddRange(new float[] { -1, -1 });
data.AddRange(background.BottomLeft.ToFloatArray());
data.AddRange(new float[] { 1, -1 });
data.AddRange(background.BottomRight.ToFloatArray());
data.AddRange(new float[] { 1, 1 });
data.AddRange(background.TopRight.ToFloatArray());
data.AddRange(new float[] { -1, 1 });
data.AddRange(background.TopLeft.ToFloatArray());
var flatData = data.ToArray();
flatBuffer.Update(flatData, flatData.Length * sizeof(float));
const int stride = sizeof(float) * 6;
gl.EnableVertexAttribArray(0);
gl.VertexAttribPointer(0, 2, OpenGL.GL_FLOAT, false, stride, new IntPtr(0));
gl.EnableVertexAttribArray(1);
gl.VertexAttribPointer(1, 4, OpenGL.GL_FLOAT, false, stride, new IntPtr(sizeof(float) * 2));
gl.BindVertexArray(0);
}
}
protected override int Submit(Instance[] instances, int count)
{
VBO.Update(instances, 0, count);
Submit(count);
return(1);
}