/// <summary>
/// Renders a frame into the frame buffer. First, it is rendering the points and then the shaders.
/// Please note that depth buffering is enabled, which means that everything is rendered in depth order, not in call order.
/// </summary>
public static void RenderFrame()
{
Camera.CalculateMatrix();
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
GL.UseProgram(currentShader);
GL.BindTexture(TextureTarget.Texture1D, currentPalette);
currentManager.Uniform();
PlaneRenderable.Render();
if (Settings.Points)
{
GL.UseProgram(DefaultShader);
DefaultManager.Uniform();
PointManager.Render();
DefaultManager.UniformProjection(Camera.ScaleMatrix);
crosshair1.Render();
crosshair2.Render();
}
// Check for GL errors.
Utils.CheckError("Render");
}
/// <summary>
/// Clean up.
/// </summary>
public static void Dispose()
{
PointManager.Dispose();
PointRenderable.Dispose();
PlaneRenderable.Dispose();
ShaderManager.Dispose();
PaletteManager.Dispose();
}
public void ShowWindow(long lastms, Vector3d cursorLocation)
{
if (firstTick && Settings.AutoResizeWindow)
{
ImGui.SetNextWindowPos(System.Numerics.Vector2.Zero);
ImGui.SetNextWindowSize(new System.Numerics.Vector2(window.ClientSize.X / (Settings.UIScaling * 4), window.ClientSize.Y / Settings.UIScaling));
firstTick = false;
}
ImGui.Begin("Information Window");
ImGui.Spacing();
if (ImGui.CollapsingHeader("Shaders"))
{
ImGui.Text("Select a shader from the list below.");
helpButton("Change the current shader by clicking on one of the names below." +
"\nThe shaders themselves can be found in the 'Shaders' directory.");
if (ImGui.ListBox("Shaders", ref currentShader, shaders, shaders.Length))
{
MasterRenderer.ChangeShader(shaders[currentShader]);
}
}
if (ImGui.CollapsingHeader("Palettes"))
{
ImGui.Text("Select a palette from the list below.");
helpButton("Change current palette by clicking on one of the names below." +
"\nThe palettes can be found in the 'Palettes' directory." +
"\nPlease note that the default palettes contain 256 different colors." +
"\nThis means that, when increasing imax over that limit, no more colors will be added.");
if (ImGui.ListBox("Palettes", ref currentPalette, palettes, palettes.Length))
{
MasterRenderer.ChangePalette(palettes[currentPalette]);
}
}
if (ImGui.CollapsingHeader("Point settings"))
{
ImGui.Checkbox("Show points", ref Settings.Points);
if (ImGui.TreeNode("Points"))
{
var points = PointManager.Points;
var pointsToRemove = new List <Point>();
for (int i = 0; i < points.Count; i++)
{
var point = points[i];
if (ImGui.TreeNode($"Point{i}"))
{
ImGui.Text($"X: {point.Position.X}");
ImGui.SameLine();
ImGui.Text($"Y: {point.Position.Y}i");
if (ImGui.Button("Copy to clipboard"))
{
ImGui.SetClipboardText($"{point.Position.X},{point.Position.Y}");
}
var c = new System.Numerics.Vector4(point.Color.R, point.Color.G, point.Color.B, point.Color.A);
if (ImGui.ColorEdit4("", ref c))
{
point.Color = new Color4(c.X, c.Y, c.Z, c.W);
}
if (ImGui.Button("Remove"))
{
pointsToRemove.Add(point);
}
ImGui.TreePop();
}
}
ImGui.TreePop();
if (pointsToRemove.Count != 0)
{
points.RemoveAll(p => pointsToRemove.Contains(p));
}
}
ImGui.TextWrapped("Place points by clicking the right mouse button or using the button.");
ImGui.Checkbox("Use random color", ref Settings.UseRandomColor);
if (!Settings.UseRandomColor)
{
ImGui.NewLine();
var c = new System.Numerics.Vector4(Utils.StandardColor.R, Utils.StandardColor.G, Utils.StandardColor.B, Utils.StandardColor.A);
if (ImGui.ColorPicker4("Color", ref c))
{
Utils.StandardColor = new Color4(c.X, c.Y, c.Z, c.W);
}
}
}
if (ImGui.CollapsingHeader("Viewport settings"))
{
var posChanged = false;
var x = Camera.ExactLocation.X;
var y = Camera.ExactLocation.Y;
ImGui.Text("Location");
helpButton("Hotkeys: [Arrows]");
posChanged |= ImGui.InputDouble("X", ref x, Camera.RelativeSpeed, Camera.RelativeSpeed * 5);
posChanged |= ImGui.InputDouble("Y", ref y, Camera.RelativeSpeed, Camera.RelativeSpeed * 5);
if (posChanged)
{
Camera.SetTranslation(x, y, 0);
}
var s = Camera.Scale;
ImGui.Text("Scale");
if (ImGui.InputFloat("S", ref s, .1f, .2f))
{
Camera.SetScale(s);
}
ImGui.NewLine();
ImGui.Text("Camera Speed");
helpButton("Determines how fast the viewport is moved around by pressing keys.");
ImGui.SliderFloat("C-Speed", ref Settings.CameraSpeed, 0.001f, .02f, "%.3f");
}
if (ImGui.CollapsingHeader("Parameter settings"))
{
var factorChanged = false;
var x = MasterRenderer.Factor1.X;
var y = MasterRenderer.Factor1.Y;
ImGui.Text("Parameter value (c)");
helpButton("This is the parameter value used for e.g. julia fractals." +
"\nOther shaders may use this parameters for other purposes." +
"\nHotkeys: [cX: Q, A; cY: W, S]");
factorChanged |= ImGui.InputFloat("cX", ref x, Settings.RegulatorSpeed, Settings.RegulatorSpeed * 5);
factorChanged |= ImGui.InputFloat("cY", ref y, Settings.RegulatorSpeed, Settings.RegulatorSpeed * 5);
if (factorChanged)
{
MasterRenderer.Factor1 = new Vector2(x, y);
}
var i = MasterRenderer.IMax;
ImGui.Text("Maximum iterations (imax)");
helpButton("Maximum value to iterate to in order to determine the color of a single pixel." +
"\nHotkeys: [E, D]");
if (ImGui.InputInt("I", ref i))
{
MasterRenderer.IMax = i;
}
var l = (float)Math.Sqrt(MasterRenderer.SquaredLimit);
ImGui.Text("Escape criterion value");
helpButton("Value that determines when the iteration is stopped. Recommended is the value 2." +
"\nHotkeys: [R, F]");
if (ImGui.InputFloat("L", ref l, Settings.RegulatorSpeed, Settings.RegulatorSpeed * 5))
{
MasterRenderer.SquaredLimit = l * l;
}
ImGui.NewLine();
ImGui.Text("Change Speed");
helpButton("Determines how fast the c parameter are changed when pressing keys.");
ImGui.SliderFloat("P-Speed", ref Settings.RegulatorSpeed, 0.0001f, .01f, "%.4f");
}
lastMS.Enqueue(lastms);
if (lastMS.Count > 300)
{
lastMS.Dequeue();
}
if (controller.BufferChanged)
{
lastVertexBufferSize.Enqueue(controller.VertexBufferSize);
lastIndexBufferSize.Enqueue(controller.IndexBufferSize);
}
if (ImGui.CollapsingHeader("Debug"))
{
ImGui.Text($"current: {localTick++} ticks");
ImGui.Text($"render: {lastms} ms");
var array = lastMS.ToArray();
ImGui.PlotLines("graph", ref array[0], array.Length);
ImGui.Text("buffer history");
var array2 = lastVertexBufferSize.ToArray();
ImGui.PlotHistogram("vertex", ref array2[0], array2.Length);
var array3 = lastIndexBufferSize.ToArray();
ImGui.PlotHistogram("index", ref array3[0], array3.Length);
if (ImGui.Button("Show welcome dialog", new System.Numerics.Vector2(ImGui.GetWindowContentRegionWidth(), 20)))
{
showDialog = true;
}
}
ImGui.NewLine();
if (ImGui.Button("Add Point at current position", new System.Numerics.Vector2(ImGui.GetWindowContentRegionWidth(), 20)))
{
PointManager.Add(Camera.Location, Utils.GetColor());
}
if (ImGui.Button("Take Screenshot", new System.Numerics.Vector2(ImGui.GetWindowContentRegionWidth(), 20)))
{
window.DoScreenshot();
}
ImGui.Checkbox("Show UI in Screenshot", ref Settings.ScreenshotUI);
ImGui.NewLine();
const string str = "00.000000000000";
ImGui.Text($"cursor at\n{cursorLocation.X.ToString(str)}\n{cursorLocation.Y.ToString(str)}i");
ImGui.End();
if (showDialog)
{
ImGui.SetNextWindowPos(new System.Numerics.Vector2(window.ClientSize.X / (Settings.UIScaling * 2) - 150, window.ClientSize.Y / (Settings.UIScaling * 2) - 110));
ImGui.SetNextWindowSize(new System.Numerics.Vector2(300, 220));
ImGui.Begin("Welcome!", ImGuiWindowFlags.NoDecoration);
ImGui.Text("Welcome to FractalPlotter!");
ImGui.TextWrapped("Click on the headers to open/close their contents.");
ImGui.TextWrapped("You can get more information about the parameters when hovering above this symbol: ");
ImGui.Text("Parameter");
helpButton("Parameter information!");
ImGui.TextWrapped("The information window can be resized by clicking and dragging the lower right corner. It can be closed by clicking on the arrow next to the title.");
ImGui.Text("Enjoy!");
if (ImGui.Button("Close this window", new System.Numerics.Vector2(ImGui.GetWindowContentRegionWidth(), 20)))
{
showDialog = false;
}
ImGui.End();
}
}
