finally what I was looking for

FModel/Resources/outline.frag

@@ -4,5 +4,5 @@ out vec4 FragColor;
 
 void main()
 {
- FragColor = vec4(0.929, 0.588, 0.196, 0.2);
+ FragColor = vec4(0.929, 0.588, 0.196, 1.0);
 }

FModel/Resources/outline.vert

@@ -6,10 +6,11 @@ layout (location = 6) in mat4 vInstanceMatrix;
 
 uniform mat4 uView;
 uniform mat4 uProjection;
+uniform vec3 viewPos;
 
 void main()
 {
- float scaleFactor = 0.005;
+ float scaleFactor = distance(vPos, viewPos) * 0.0025;
  vec3 scaleVertex = vPos + vNormal * scaleFactor;
  gl_Position = uProjection * uView * vInstanceMatrix * vec4(scaleVertex, 1.0);
 }

FModel/Views/Snooper/Camera.cs

@@ -11,7 +11,7 @@ public class Camera
 
  public float Yaw { get; set; } = -90f;
  public float Pitch { get; set; } = 0f;
- public float Zoom { get; set; } = 45f;
+ public float Zoom { get; set; } = 60f;
  public float Speed { get; set; } = 1f;
  public float Near { get; } = 0.01f;
  public float Far { get; } = 100f;
@@ -34,7 +34,7 @@ public Camera(Vector3 position, Vector3 direction, float near, float far, float
  public void ModifyZoom(float zoomAmount)
  {
  //We don't want to be able to zoom in too close or too far away so clamp to these values
- Zoom = Math.Clamp(Zoom - zoomAmount, 1.0f, 45f);
+ Zoom = Math.Clamp(Zoom - zoomAmount, 1.0f, 60f);
  }
 
  public void ModifyDirection(float xOffset, float yOffset)

FModel/Views/Snooper/FramebufferObject.cs

@@ -96,16 +96,15 @@ public void BindMsaa()
 
  public void BindStuff()
  {
- _gl.DepthMask(false);
+ _gl.Disable(EnableCap.DepthTest);
 
  _shader.Use();
  _vao.Bind();
 
  _postProcessingTexture.Bind(TextureUnit.Texture0);
 
  _gl.DrawArrays(PrimitiveType.Triangles, 0, (uint) Indices.Length);
-
- _gl.DepthMask(true);
+ _gl.Enable(EnableCap.DepthTest);
  }
 
  public IntPtr GetPointer() => _postProcessingTexture.GetPointer();

FModel/Views/Snooper/Grid.cs

@@ -43,8 +43,7 @@ public void Setup(GL gl)
 
  public void Bind(Camera camera)
  {
- _gl.DepthMask(false);
-
+ _gl.Disable(EnableCap.DepthTest);
  _vao.Bind();
 
  _shader.Use();
@@ -55,8 +54,7 @@ public void Bind(Camera camera)
  _shader.SetUniform("uFar", camera.Far);
 
  _gl.DrawArrays(PrimitiveType.Triangles, 0, (uint) Indices.Length);
-
- _gl.DepthMask(true);
+ _gl.Enable(EnableCap.DepthTest);
  }
 
  public void Dispose()

FModel/Views/Snooper/Model.cs

@@ -30,7 +30,6 @@ public class Model : IDisposable
  public Section[] Sections;
  public readonly List<CSkelMeshBone> Skeleton;
 
- public int InstanceIndex;
  public int TransformsCount;
  public readonly List<Transform> Transforms;
  public readonly string[] TransformsLabels = {
@@ -39,6 +38,7 @@ public class Model : IDisposable
  "X Scale", "Y", "Z"
  };
 
+ public bool Show;
  public bool IsSelected;
  public bool DisplayVertexColors;
  public bool DisplayBones;
@@ -47,8 +47,8 @@ protected Model(string name, string type)
  {
  Name = name;
  Type = type;
- InstanceIndex = 0;
  Transforms = new List<Transform>();
+ Show = true;
  }
 
  public Model(string name, string type, CBaseMeshLod lod, CMeshVertex[] vertices, List<CSkelMeshBone> skeleton = null, Transform transform = null) : this(name, type)
@@ -165,35 +165,47 @@ public void Setup(GL gl)
  }
  }
 
- public void Bind(Shader shader, Shader outline)
+ public void Bind(Shader shader)
  {
- _vao.Bind();
+ if (IsSelected)
+ {
+ _gl.Enable(EnableCap.StencilTest);
+ _gl.StencilFunc(StencilFunction.Always, 1, 0xFF);
+ }
 
+ _vao.Bind();
  shader.SetUniform("display_vertex_colors", DisplayVertexColors);
  for (int section = 0; section < Sections.Length; section++)
  {
  Sections[section].Bind(shader, (uint) TransformsCount);
  }
+ _vao.Unbind();
 
  if (IsSelected)
  {
- outline.Use();
- _gl.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Line);
- _gl.StencilFunc(StencilFunction.Notequal, 1, 0xFF);
- _gl.Disable(EnableCap.DepthTest);
- _gl.StencilMask(0x00);
- for (int section = 0; section < Sections.Length; section++)
- {
- _gl.DrawArraysInstanced(PrimitiveType.Triangles, Sections[section].FirstFaceIndex, Sections[section].FacesCount, (uint) InstanceIndex + 1);
- }
- _gl.StencilMask(0xFF);
- _gl.Enable(EnableCap.DepthTest);
  _gl.StencilFunc(StencilFunction.Always, 0, 0xFF);
- _gl.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Fill);
- shader.Use();
+ _gl.Disable(EnableCap.StencilTest);
  }
+ }
+
+ public void Outline(Shader shader)
+ {
+ _gl.StencilMask(0x00);
+ _gl.Disable(EnableCap.DepthTest);
+ _gl.StencilFunc(StencilFunction.Notequal, 1, 0xFF);
 
+ _vao.Bind();
+ shader.Use();
+ for (int section = 0; section < Sections.Length; section++)
+ {
+ if (!Sections[section].Show) continue;
+ _gl.DrawArraysInstanced(PrimitiveType.Triangles, Sections[section].FirstFaceIndex, Sections[section].FacesCount, (uint) TransformsCount);
+ }
  _vao.Unbind();
+
+ _gl.StencilFunc(StencilFunction.Always, 0, 0xFF);
+ _gl.Enable(EnableCap.DepthTest);
+ _gl.StencilMask(0xFF);
  }
 
  public void Dispose()

FModel/Views/Snooper/SnimGui.cs

@@ -29,6 +29,7 @@ public class SnimGui : IDisposable
  private readonly Vector2 _texturePosition;
  private bool _viewportFocus;
  private FGuid _selectedModel;
+ private int _selectedInstance;
  private int _selectedSection;
 
  private const ImGuiWindowFlags _noResize = ImGuiWindowFlags.NoResize | ImGuiWindowFlags.NoMove; // delete once we have a proper docking branch
@@ -55,6 +56,7 @@ public SnimGui(GL gl, IWindow window, IInputContext input)
  _textureSize = _viewportSize with { Y = viewport.WorkSize.Y - _viewportSize.Y - titleBarHeight };
  _texturePosition = new Vector2(0, _viewportPosition.Y + _viewportSize.Y);
  _selectedModel = new FGuid();
+ _selectedInstance = 0;
  _selectedSection = 0;
 
  Theme(style);
@@ -137,6 +139,7 @@ private void DrawOuliner(Camera camera, IDictionary<FGuid, Model> models)
  if (ImGui.Selectable(model.Name, model.IsSelected))
  {
  _selectedModel = guid;
+ _selectedInstance = 0;
  _selectedSection = 0;
  }
  if (ImGui.BeginPopupContextItem())
@@ -183,11 +186,12 @@ private void DrawProperties(Camera camera, IDictionary<FGuid, Model> models)
  ImGui.Text($"Entity: {model.Name}");
  ImGui.Separator();
  if (ImGui.Button("Focus"))
- camera.Position = model.Transforms[model.InstanceIndex].Position;
+ camera.Position = model.Transforms[_selectedInstance].Position;
  ImGui.SameLine();
  ImGui.BeginDisabled(model.TransformsCount < 2);
- ImGui.SliderInt("Instance", ref model.InstanceIndex, 0, model.TransformsCount - 1, "%i", ImGuiSliderFlags.AlwaysClamp);
+ ImGui.SliderInt("Instance", ref _selectedInstance, 0, model.TransformsCount - 1, "%i", ImGuiSliderFlags.AlwaysClamp);
  ImGui.EndDisabled();
+ ImGui.Checkbox("Show", ref model.Show);
  ImGui.BeginDisabled(!model.HasVertexColors);
  ImGui.Checkbox("Vertex Colors", ref model.DisplayVertexColors);
  ImGui.EndDisabled();
@@ -202,46 +206,46 @@ private void DrawProperties(Camera camera, IDictionary<FGuid, Model> models)
  var index = 0;
 
  ImGui.SetNextItemWidth(width); ImGui.PushID(index);
- ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[model.InstanceIndex].Position.X, speed, 0f, 0f, "%.2f m");
+ ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[_selectedInstance].Position.X, speed, 0f, 0f, "%.2f m");
  ImGui.PopID();
 
  index++; ImGui.SetNextItemWidth(width); ImGui.PushID(index);
- ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[model.InstanceIndex].Position.Y, speed, 0f, 0f, "%.2f m");
+ ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[_selectedInstance].Position.Y, speed, 0f, 0f, "%.2f m");
  ImGui.PopID();
 
  index++; ImGui.SetNextItemWidth(width); ImGui.PushID(index);
- ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[model.InstanceIndex].Position.Z, speed, 0f, 0f, "%.2f m");
+ ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[_selectedInstance].Position.Z, speed, 0f, 0f, "%.2f m");
  ImGui.PopID();
 
  ImGui.Spacing();
 
  index++; ImGui.SetNextItemWidth(width); ImGui.PushID(index);
- ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[model.InstanceIndex].Rotation.Pitch, .5f, 0f, 0f, "%.1f°");
+ ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[_selectedInstance].Rotation.Pitch, .5f, 0f, 0f, "%.1f°");
  ImGui.PopID();
 
  index++; ImGui.SetNextItemWidth(width); ImGui.PushID(index);
- ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[model.InstanceIndex].Rotation.Roll, .5f, 0f, 0f, "%.1f°");
+ ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[_selectedInstance].Rotation.Roll, .5f, 0f, 0f, "%.1f°");
  ImGui.PopID();
 
  index++; ImGui.SetNextItemWidth(width); ImGui.PushID(index);
- ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[model.InstanceIndex].Rotation.Yaw, .5f, 0f, 0f, "%.1f°");
+ ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[_selectedInstance].Rotation.Yaw, .5f, 0f, 0f, "%.1f°");
  ImGui.PopID();
 
  ImGui.Spacing();
 
  index++; ImGui.SetNextItemWidth(width); ImGui.PushID(index);
- ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[model.InstanceIndex].Scale.X, speed, 0f, 0f, "%.3f");
+ ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[_selectedInstance].Scale.X, speed, 0f, 0f, "%.3f");
  ImGui.PopID();
 
  index++; ImGui.SetNextItemWidth(width); ImGui.PushID(index);
- ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[model.InstanceIndex].Scale.Y, speed, 0f, 0f, "%.3f");
+ ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[_selectedInstance].Scale.Y, speed, 0f, 0f, "%.3f");
  ImGui.PopID();
 
  index++; ImGui.SetNextItemWidth(width); ImGui.PushID(index);
- ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[model.InstanceIndex].Scale.Z, speed, 0f, 0f, "%.3f");
+ ImGui.DragFloat(model.TransformsLabels[index], ref model.Transforms[_selectedInstance].Scale.Z, speed, 0f, 0f, "%.3f");
  ImGui.PopID();
 
- model.UpdateMatrix(model.InstanceIndex);
+ model.UpdateMatrix(_selectedInstance);
  ImGui.TreePop();
  }
 

FModel/Views/Snooper/Snooper.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Numerics;
 using System.Runtime.InteropServices;
 using System.Windows;
@@ -259,7 +260,7 @@ private void OnLoad()
  _gl.Enable(EnableCap.Blend);
  _gl.Enable(EnableCap.DepthTest);
  _gl.Enable(EnableCap.Multisample);
- _gl.Enable(EnableCap.StencilTest);
+ _gl.StencilOp(StencilOp.Keep, StencilOp.Replace, StencilOp.Replace);
  _gl.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
 
  _imGui = new SnimGui(_gl, _window, input);
@@ -300,6 +301,7 @@ private void OnRender(double deltaTime)
  _outline.Use();
  _outline.SetUniform("uView", viewMatrix);
  _outline.SetUniform("uProjection", projMatrix);
+ _outline.SetUniform("viewPos", _camera.Position);
 
  _shader.Use();
  _shader.SetUniform("uView", viewMatrix);
@@ -315,9 +317,14 @@ private void OnRender(double deltaTime)
  _shader.SetUniform("light.diffuse", _diffuseLight);
  _shader.SetUniform("light.specular", _specularLight);
 
- foreach (var model in _models.Values)
+ foreach (var model in _models.Values.Where(model => model.Show))
+ {
+ model.Bind(_shader);
+ }
+ _gl.Enable(EnableCap.StencilTest); // I don't get why this must be here but it works now so...
+ foreach (var model in _models.Values.Where(model => model.IsSelected && model.Show))
  {
- model.Bind(_shader, _outline);
+ model.Outline(_outline);
  }
 
  _imGui.Construct(_size, _framebuffer, _camera, _mouse, _models);