/// <summary>
///
/// </summary>
/// <param name="arg"></param>
/// <param name="x">mouse position(Left Down is (0, 0)).</param>
/// <param name="y">mouse position(Left Down is (0, 0)).</param>
/// <param name="lastVertexId"></param>
/// <param name="modernRenderer"></param>
/// <returns></returns>
internal override uint[] Search(RenderEventArgs arg,
int x, int y,
uint lastVertexId, ZeroIndexRenderer modernRenderer)
{
OneIndexBuffer buffer = Buffer.Create(IndexBufferElementType.UInt, 8, DrawMode.Lines, BufferUsage.StaticDraw);
unsafe
{
var array = (uint*)buffer.MapBuffer(MapBufferAccess.WriteOnly);
array[0] = lastVertexId - 0; array[1] = lastVertexId - 2;
array[2] = lastVertexId - 2; array[3] = lastVertexId - 3;
array[4] = lastVertexId - 3; array[5] = lastVertexId - 1;
array[6] = lastVertexId - 1; array[7] = lastVertexId - 0;
buffer.UnmapBuffer();
}
modernRenderer.Render4InnerPicking(arg, buffer);
uint id = ColorCodedPicking.ReadStageVertexId(x, y);
buffer.Dispose();
if (id + 2 == lastVertexId)
{ return new uint[] { lastVertexId - 0, lastVertexId - 2, }; }
else if (id + 3 == lastVertexId)
{ return new uint[] { lastVertexId - 2, lastVertexId - 3 }; }
else if (id + 1 == lastVertexId)
{ return new uint[] { lastVertexId - 3, lastVertexId - 1, }; }
else if (id + 0 == lastVertexId)
{ return new uint[] { lastVertexId - 1, lastVertexId - 0, }; }
else
{ throw new Exception("This should not happen!"); }
}
internal override uint[] Search(RenderEventArgs arg,
int x, int y,
uint lastVertexId, ZeroIndexRenderer modernRenderer)
{
OneIndexBufferPtr indexBufferPtr = null;
using (var buffer = new OneIndexBuffer<uint>(DrawMode.Lines, BufferUsage.StaticDraw))
{
buffer.Alloc(8);
unsafe
{
var array = (uint*)buffer.Header.ToPointer();
array[0] = lastVertexId - 0; array[1] = lastVertexId - 2;
array[2] = lastVertexId - 2; array[3] = lastVertexId - 3;
array[4] = lastVertexId - 3; array[5] = lastVertexId - 1;
array[6] = lastVertexId - 1; array[7] = lastVertexId - 0;
}
indexBufferPtr = buffer.GetBufferPtr() as OneIndexBufferPtr;
}
modernRenderer.Render4InnerPicking(arg, indexBufferPtr);
uint id = ColorCodedPicking.ReadPixel(x, y, arg.CanvasRect.Height);
indexBufferPtr.Dispose();
if (id + 2 == lastVertexId)
{ return new uint[] { lastVertexId - 0, lastVertexId - 2, }; }
else if (id + 3 == lastVertexId)
{ return new uint[] { lastVertexId - 2, lastVertexId - 3 }; }
else if (id + 1 == lastVertexId)
{ return new uint[] { lastVertexId - 3, lastVertexId - 1, }; }
else if (id + 0 == lastVertexId)
{ return new uint[] { lastVertexId - 1, lastVertexId - 0, }; }
else
{ throw new Exception("This should not happen!"); }
}
/// <summary>
/// 在三角形图元中拾取指定位置的Point
/// </summary>
/// <param name="arg">渲染参数</param>
/// <param name="x">mouse position(Left Down is (0, 0)).</param>
/// <param name="y">mouse position(Left Down is (0, 0)).</param>
/// <param name="lastVertexId">三角形图元的最后一个顶点</param>
/// <param name="modernRenderer">目标Renderer</param>
/// <returns></returns>
internal override uint Search(RenderEventArgs arg,
int x, int y,
uint lastVertexId, ZeroIndexRenderer modernRenderer)
{
// 创建临时索引
OneIndexBuffer buffer = Buffer.Create(IndexBufferElementType.UInt, 3, DrawMode.Points, BufferUsage.StaticDraw);
unsafe
{
var array = (uint*)buffer.MapBuffer(MapBufferAccess.WriteOnly);
array[0] = lastVertexId - 0;
array[1] = lastVertexId - 1;
array[2] = lastVertexId - 2;
buffer.UnmapBuffer();
}
// 用临时索引渲染此三角形图元（仅渲染此三角形图元）
modernRenderer.Render4InnerPicking(arg, buffer);
// id是拾取到的Line的Last Vertex Id
uint id = ColorCodedPicking.ReadStageVertexId(x, y);
buffer.Dispose();
// 对比临时索引，找到那个Line
if (lastVertexId - 2 <= id && id <= lastVertexId - 0)
{ return id; }
else
{ throw new Exception("This should not happen!"); }
}
/// <summary>
///
/// </summary>
/// <param name="arg"></param>
/// <param name="x">mouse position(Left Down is (0, 0)).</param>
/// <param name="y">mouse position(Left Down is (0, 0)).</param>
/// <param name="primitiveInfo"></param>
/// <param name="modernRenderer"></param>
/// <returns></returns>
internal override uint[] Search(RenderEventArgs arg,
int x, int y,
RecognizedPrimitiveInfo primitiveInfo,
OneIndexRenderer modernRenderer)
{
uint[] indexList = primitiveInfo.VertexIds;
if (indexList.Length < 3) { throw new ArgumentException(); }
OneIndexBuffer buffer = indexList.GenIndexBuffer(DrawMode.LineLoop, BufferUsage.StaticDraw);
modernRenderer.Render4InnerPicking(arg, buffer);
uint id = ColorCodedPicking.ReadStageVertexId(x, y);
buffer.Dispose();
if (id == indexList[0])
{ return new uint[] { indexList[indexList.Length - 1], id, }; }
else
{
uint[] result = null;
for (int i = 1; i < indexList.Length; i++)
{
if (id == indexList[i])
{
result = new uint[] { indexList[i - 1], indexList[i], };
break;
}
}
if (result != null)
{ return result; }
else
{ throw new Exception("This should not happen!"); }
}
}
protected override void DoRender(RenderEventArgs arg)
{
DateTime now = DateTime.Now;
const float speed = 1.0f;
{
float secondAngle = ((float)now.Second) / 60.0f * 360.0f * speed;
this.RotationAngleDegree = secondAngle;
OpenGL.LoadIdentity();
this.LegacyTransform();
secondLineWidthState.On();
OpenGL.Begin(OpenGL.GL_LINES);
for (int i = 0; i < secondPosition.Count; i++)
{
vec3 color = secondColor[i];
OpenGL.Color3f(color.x, color.y, color.z);
vec3 position = secondPosition[i];
OpenGL.Vertex3f(position.x, position.y, position.z);
}
OpenGL.End();
secondLineWidthState.Off();
}
{
float minuteAngle = ((float)(now.Minute * 60 + now.Second)) / (60.0f * 60.0f) * 360.0f * speed;
this.RotationAngleDegree = minuteAngle;
OpenGL.LoadIdentity();
this.LegacyTransform();
minuteLineWidthState.On();
OpenGL.Begin(OpenGL.GL_LINES);
for (int i = 0; i < minutePosition.Count; i++)
{
vec3 color = minuteColor[i];
OpenGL.Color3f(color.x, color.y, color.z);
vec3 position = minutePosition[i];
OpenGL.Vertex3f(position.x, position.y, position.z);
}
OpenGL.End();
minuteLineWidthState.Off();
}
{
float hourAngle = ((float)((now.Hour * 60 + now.Minute) * 60 + now.Second)) / (12.0f * 60.0f * 60.0f) * 360.0f * speed;
this.RotationAngleDegree = hourAngle;
OpenGL.LoadIdentity();
this.LegacyTransform();
hourLineWidthState.On();
OpenGL.Begin(OpenGL.GL_LINES);
for (int i = 0; i < hourPosition.Count; i++)
{
vec3 color = hourColor[i];
OpenGL.Color3f(color.x, color.y, color.z);
vec3 position = hourPosition[i];
OpenGL.Vertex3f(position.x, position.y, position.z);
}
OpenGL.End();
hourLineWidthState.Off();
}
}
internal override uint Search(RenderEventArgs arg,
int x, int y,
uint lastVertexId, ZeroIndexRenderer modernRenderer)
{
OneIndexBufferPtr indexBufferPtr = null;
using (var buffer = new OneIndexBuffer<uint>(DrawMode.Points, BufferUsage.StaticDraw))
{
buffer.Alloc(4);
unsafe
{
var array = (uint*)buffer.Header.ToPointer();
array[0] = lastVertexId - 0;
array[1] = lastVertexId - 1;
array[2] = lastVertexId - 2;
array[3] = lastVertexId - 3;
}
indexBufferPtr = buffer.GetBufferPtr() as OneIndexBufferPtr;
}
modernRenderer.Render4InnerPicking(arg, indexBufferPtr);
uint id = ColorCodedPicking.ReadPixel(x, y, arg.CanvasRect.Height);
indexBufferPtr.Dispose();
if (lastVertexId - 3 <= id && id <= lastVertexId - 0)
{ return id; }
else
{ throw new Exception("This should not happen!"); }
}
/// <summary>
/// Color Coded Picking
/// </summary>
/// <param name="arg"></param>
/// <param name="rect">拾取范围</param>
/// <param name="pickableElements">在哪些对象中执行拾取操作</param>
/// <returns></returns>
public static List<Tuple<Point, PickedGeometry>> Pick(
RenderEventArgs arg,
Rectangle rect,
params PickableRenderer[] pickableElements)
{
var result = new List<Tuple<Point, PickedGeometry>>();
if (pickableElements.Length == 0) { return result; }
Render4Picking(arg, pickableElements);
List<Tuple<Point, uint>> stageVertexIdList = ReadPixels(rect, arg.CanvasRect.Height);
foreach (var tuple in stageVertexIdList)
{
int x = tuple.Item1.X;
int y = tuple.Item1.Y;
if (x < 0 || arg.CanvasRect.Width <= x || y < 0 || arg.CanvasRect.Height <= y) { continue; }
uint stageVertexId = tuple.Item2;
PickedGeometry pickedGeometry = PickGeometry(arg,
x, y, stageVertexId, pickableElements);
if (pickedGeometry != null)
{
result.Add(new Tuple<Point, PickedGeometry>(new Point(x, y), pickedGeometry));
}
}
return result;
}
///// <summary>
///// Maybe something is picked because depth buffer is valid.
///// </summary>
///// <param name="pickingRect"></param>
///// <returns></returns>
//private static unsafe bool DepthBufferValid(Rectangle pickingRect)
//{
// if (pickingRect.Width <= 0 || pickingRect.Height <= 0) { return false; }
// bool result = false;
// using (var codedColor = new UnmanagedArray<byte>(pickingRect.Width * pickingRect.Height))
// {
// OpenGL.ReadPixels(pickingRect.X, pickingRect.Y, pickingRect.Width, pickingRect.Height,
// OpenGL.GL_DEPTH_COMPONENT, OpenGL.GL_UNSIGNED_BYTE, codedColor.Header);
// var array = (byte*)codedColor.Header.ToPointer();
// for (int i = 0; i < codedColor.Length; i++)
// {
// if (array[i] < byte.MaxValue)
// {
// result = true;
// break;
// }
// }
// }
// return result;
//}
/// <summary>
/// Render all <see cref="PickableRenderer"/>s for color-coded picking.
/// </summary>
/// <param name="arg"></param>
/// <returns></returns>
internal List<IPickable> Render4Picking(RenderEventArgs arg)
{
arg.UsingViewPort.On();
// record clear color
var originalClearColor = new float[4];
OpenGL.GetFloat(GetTarget.ColorClearValue, originalClearColor);
// white color means nothing picked.
OpenGL.glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
OpenGL.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT | OpenGL.GL_STENCIL_BUFFER_BIT);
// restore clear color
OpenGL.glClearColor(originalClearColor[0], originalClearColor[1], originalClearColor[2], originalClearColor[3]);
uint renderedVertexCount = 0;
var pickedRendererList = new List<IPickable>();
RenderPickableObject(this.rootObject, arg, ref renderedVertexCount, pickedRendererList);
OpenGL.Flush();
arg.UsingViewPort.Off();
return pickedRendererList;
}
internal override uint[] Search(RenderEventArgs arg,
int x, int y,
uint lastVertexId, ZeroIndexRenderer modernRenderer)
{
OneIndexBufferPtr indexBufferPtr = null;
using (var buffer = new OneIndexBuffer<uint>(DrawMode.Lines, BufferUsage.StaticDraw))
{
buffer.Alloc(6);
unsafe
{
var array = (uint*)buffer.Header.ToPointer();
array[0] = lastVertexId - 2; array[1] = lastVertexId - 0;
array[2] = lastVertexId - 4; array[3] = lastVertexId - 2;
array[4] = lastVertexId - 0; array[5] = lastVertexId - 4;
}
indexBufferPtr = buffer.GetBufferPtr() as OneIndexBufferPtr;
}
modernRenderer.Render4InnerPicking(arg, indexBufferPtr);
uint id = ColorCodedPicking.ReadPixel(x, y, arg.CanvasRect.Height);
indexBufferPtr.Dispose();
if (id + 4 == lastVertexId)
{ return new uint[] { id + 4, id, }; }
else
{ return new uint[] { id - 2, id, }; }
}
/// <summary>
///
/// </summary>
/// <param name="arg"></param>
public void Render4Picking(RenderEventArgs arg)
{
InnerPickableRenderer renderer = this.innerPickableRenderer;
if (renderer == null) { throw new Exception("InnerPickableRenderer is null!"); }
renderer.Render4Picking(arg);
}
internal override uint Search(RenderEventArgs arg,
int x, int y,
RecognizedPrimitiveIndex lastIndexId,
OneIndexRenderer modernRenderer)
{
List<uint> indexList = lastIndexId.IndexIdList;
if (indexList.Count < 3) { throw new ArgumentException(); }
OneIndexBufferPtr indexBufferPtr = null;
using (var buffer = new OneIndexBuffer<uint>(DrawMode.Points, BufferUsage.StaticDraw))
{
buffer.Alloc(indexList.Count);
unsafe
{
var array = (uint*)buffer.Header.ToPointer();
for (int i = 0; i < indexList.Count; i++)
{
array[i] = indexList[i];
}
}
indexBufferPtr = buffer.GetBufferPtr() as OneIndexBufferPtr;
}
modernRenderer.Render4InnerPicking(arg, indexBufferPtr);
uint id = ColorCodedPicking.ReadPixel(x, y, arg.CanvasRect.Height);
indexBufferPtr.Dispose();
if (id != uint.MaxValue)
{ return id; }
else
{ throw new Exception("This should not happen!"); }
}
/// <summary>
///
/// </summary>
/// <param name="arg"></param>
/// <param name="x">mouse position(Left Down is (0, 0)).</param>
/// <param name="y">mouse position(Left Down is (0, 0)).</param>
/// <param name="primitiveInfo"></param>
/// <param name="modernRenderer"></param>
/// <returns></returns>
internal override uint[] Search(RenderEventArgs arg,
int x, int y,
RecognizedPrimitiveInfo primitiveInfo,
OneIndexRenderer modernRenderer)
{
uint[] indexList = primitiveInfo.VertexIds;
if (indexList.Length != 3) { throw new ArgumentException(); }
//if (indexList[0] == indexList[1]) { return new uint[] { indexList[0], indexList[2], }; }
//else if (indexList[0] == indexList[2]) { return new uint[] { indexList[0], indexList[1], }; }
//else if (indexList[1] == indexList[2]) { return new uint[] { indexList[1], indexList[0], }; }
var targetIndexList = new uint[6] { indexList[0], indexList[1], indexList[1], indexList[2], indexList[2], indexList[0], };
OneIndexBuffer buffer = targetIndexList.GenIndexBuffer(DrawMode.Lines, BufferUsage.StaticDraw);
modernRenderer.Render4InnerPicking(arg, buffer);
uint id = ColorCodedPicking.ReadStageVertexId(x, y);
buffer.Dispose();
if (id == indexList[1])
{ return new uint[] { indexList[0], indexList[1], }; }
else if (id == indexList[2])
{ return new uint[] { indexList[1], indexList[2], }; }
else if (id == indexList[0])
{ return new uint[] { indexList[2], indexList[0], }; }
else
{ throw new Exception("This should not happen!"); }
}
/// <summary>
///
/// </summary>
/// <param name="arg"></param>
public void Render4Picking(RenderEventArgs arg)
{
if (!this.IsInitialized) { this.Initialize(); }
UpdatePolygonMode(arg.PickingGeometryType);
ShaderProgram program = this.Program;
// 绑定shader
program.Bind();
program.SetUniform("pickingBaseId",
(int)this.PickingBaseId);
UniformMat4 uniformmMVP4Picking = this.uniformmMVP4Picking;
{
mat4 projection = arg.Camera.GetProjectionMatrix();
mat4 view = arg.Camera.GetViewMatrix();
mat4 model = this.GetModelMatrix().Value;
uniformmMVP4Picking.Value = projection * view * model;
}
uniformmMVP4Picking.SetUniform(program);
PickingStateesOn();
this.vertexArrayObject.Render(arg, program);
PickingStateesOff();
//if (mvpUpdated) { uniformmMVP4Picking.ResetUniform(program); }
// 解绑shader
program.Unbind();
}
/// <summary>
///
/// </summary>
/// <param name="arg"></param>
/// <param name="stageVertexId"></param>
/// <param name="x">mouse position(Left Down is (0, 0)).</param>
/// <param name="y">mouse position(Left Down is (0, 0)).</param>
/// <returns></returns>
public override PickedGeometry GetPickedGeometry(RenderEventArgs arg, uint stageVertexId,
int x, int y)
{
uint lastVertexId;
if (!this.GetLastVertexIdOfPickedGeometry(stageVertexId, out lastVertexId))
{ return null; }
PickingGeometryType geometryType = arg.PickingGeometryType;
if (geometryType == PickingGeometryType.Point)
{
DrawMode mode = this.indexBuffer.Mode;
PickingGeometryType typeOfMode = mode.ToGeometryType();
if (typeOfMode == PickingGeometryType.Point)
{ return PickWhateverItIs(arg, stageVertexId, lastVertexId, mode, typeOfMode); }
else if (typeOfMode == PickingGeometryType.Line)
{
if (this.OnPrimitiveTest(lastVertexId, mode))
{ return PickPoint(arg, stageVertexId, lastVertexId); }
else
{ return null; }
}
else
{
ZeroIndexPointSearcher searcher = GetPointSearcher(mode);
if (searcher != null)// point is from triangle, quad or polygon
{ return SearchPoint(arg, stageVertexId, x, y, lastVertexId, searcher); }
else
{ throw new Exception(string.Format("Lack of searcher for [{0}]", mode)); }
}
}
else if (geometryType == PickingGeometryType.Line)
{
DrawMode mode = this.indexBuffer.Mode;
PickingGeometryType typeOfMode = mode.ToGeometryType();
if (geometryType == typeOfMode)
{ return PickWhateverItIs(arg, stageVertexId, lastVertexId, mode, typeOfMode); }
else
{
ZeroIndexLineSearcher searcher = GetLineSearcher(mode);
if (searcher != null)// line is from triangle, quad or polygon
{ return SearchLine(arg, stageVertexId, x, y, lastVertexId, searcher); }
else if (mode == DrawMode.Points)// want a line when rendering GL_POINTS
{ return null; }
else
{ throw new Exception(string.Format("Lack of searcher for [{0}]", mode)); }
}
}
else
{
DrawMode mode = this.indexBuffer.Mode;
PickingGeometryType typeOfMode = mode.ToGeometryType();
if (typeOfMode == geometryType)// I want what it is
{ return PickWhateverItIs(arg, stageVertexId, lastVertexId, mode, typeOfMode); }
else
{ return null; }
//{ throw new Exception(string.Format("Lack of searcher for [{0}]", mode)); }
}
}
/// <summary>
///
/// </summary>
/// <param name="arg"></param>
protected override void DoRender(RenderEventArgs arg)
{
this.Layout();
foreach (UIRenderer item in this.Children)
{
RenderUIRenderer(item, arg);
}
}
public override void Render(RenderEventArgs arg)
{
UIRoot renderer = this.UIRoot;
if (renderer != null)
{
renderer.Render(arg);
}
}
///// <summary>
///// Occurs before this object and all of its children's rendering.
///// </summary>
//public event EventHandler BeforeRendering;
///// <summary>
///// Occurs before this object and all of its children's rendering.
///// </summary>
//internal void DoBeforeRendering()
//{
// EventHandler handler = this.BeforeRendering;
// if (handler != null)
// {
// handler(this, new EventArgs());
// }
//}
/// <summary>
///
/// </summary>
/// <param name="arg"></param>
public void Render(RenderEventArgs arg)
{
RendererBase renderer = this.Renderer;
if (renderer != null)
{
renderer.Render(arg);
}
}
/// <summary>
/// Render something.
/// </summary>
/// <param name="arg"></param>
public void Render(RenderEventArgs arg)
{
if (this.Enabled)
{
if (!isInitialized) { Initialize(); }
DoRender(arg);
}
}
public void Render(RenderModes renderMode, Rectangle clientRectangle)
{
var arg = new RenderEventArgs(renderMode, clientRectangle, this.Camera);
var list = this.ObjectList.ToArray();
foreach (var item in list)
{
item.Render(arg);
}
this.UIRoot.Render(arg);
}
/// <summary>
/// Color Coded Picking
/// </summary>
/// <param name="camera"></param>
/// <param name="x">鼠标位置</param>
/// <param name="y">鼠标位置</param>
/// <param name="radius">以鼠标位置为中心，在半径为<paramref name="radius"/>的正方形范围内进行拾取</param>
/// <param name="width">画布宽度</param>
/// <param name="height">画布高度</param>
/// <param name="pickableElements">在哪些对象中执行拾取操作</param>
/// <returns></returns>
public static List<Tuple<Point, PickedGeometry>> Pick(
RenderEventArgs arg,
int x, int y, int radius,
params PickableRenderer[] pickableElements)
{
if (x < 0 || arg.CanvasRect.Width <= x || y < 0 || arg.CanvasRect.Height <= y) { return null; }
Rectangle rect = new Rectangle(x - radius, y - radius, radius * 2, radius * 2);
return Pick(arg, rect, pickableElements);
}
/// <summary>
///
/// </summary>
/// <param name="arg"></param>
protected override void DoRender(RenderEventArgs arg)
{
mat4 projection = this.GetOrthoProjection();
mat4 view = glm.lookAt(new vec3(0, 0, 1), new vec3(0, 0, 0), new vec3(0, 1, 0));
mat4 model = glm.scale(mat4.identity(), new vec3(this.Size.Width, this.Size.Height, 1));
var renderer = this.Renderer as Renderer;
renderer.SetUniform("mvp", projection * view * model);
base.DoRender(arg);
}
protected override void DoRender(RenderEventArgs arg)
{
mat4 projection = arg.Camera.GetProjectionMat4();
mat4 view = arg.Camera.GetViewMat4();
Renderer boundingBox = this.BoundingBoxRenderer;
if (boundingBox != null) { boundingBox.Render(arg); }
Renderer renderer = this.ScientificRenderer;
if (renderer != null) { renderer.Render(arg); }
}
protected override void DoRender(RenderEventArgs arg)
{
mat4 projection = this.GetOrthoProjection();
mat4 view = glm.lookAt(new vec3(0, 0, 1), new vec3(0, 0, 0), new vec3(0, 1, 0));
float length = this.Size.Height;
mat4 model = glm.scale(mat4.identity(), new vec3(this.Size.Width - 1, this.Size.Height - 1, 1));// '-1' to make sure lines shows up.
var renderer = this.Renderer as Renderer;
renderer.SetUniform("mvp", projection * view * model);
base.DoRender(arg);
}
public void Render(RenderEventArgs arg)
{
if (this.Enabled)
{
RendererComponent renderer = this.Renderer;
if (renderer != null)
{
renderer.Render(arg);
}
}
}
protected override void DoRender(RenderEventArgs arg)
{
this.SetUniform("billboardCenter_worldspace", this.WorldPosition);
int[] viewport = OpenGL.GetViewport();
this.SetUniform("viewportSize", new vec2(viewport[2], viewport[3]));
mat4 projection = arg.Camera.GetProjectionMat4();
mat4 view = arg.Camera.GetViewMat4();
this.SetUniform("projection", projection);
this.SetUniform("view", view);
base.DoRender(arg);
}
protected override void DoRender(RenderEventArgs arg)
{
this.SetUniform("projectionMatrix", arg.Camera.GetProjectionMatrix());
this.SetUniform("viewMatrix", arg.Camera.GetViewMatrix());
MarkableStruct<mat4> model = this.GetModelMatrix();
if (this.modelTicks != model.UpdateTicks)
{
this.SetUniform("modelMatrix", model.Value);
this.modelTicks = model.UpdateTicks;
}
base.DoRender(arg);
}
/// <summary>
/// Render this bounding box.
/// </summary>
/// <param name="boundingBox"></param>
/// <param name="color"></param>
/// <param name="arg"></param>
public static void Render(this IBoundingBox boundingBox, Color color, RenderEventArgs arg)
{
if (renderer == null)
{
var lengths = new vec3(1, 1, 1);
renderer = BoundingBoxRenderer.Create(lengths);
renderer.Initialize();
}
renderer.WorldPosition = boundingBox.MaxPosition / 2 + boundingBox.MinPosition / 2;
renderer.Scale = boundingBox.MaxPosition - boundingBox.MinPosition;
renderer.BoundingBoxColor = color;
renderer.Render(arg);
}
protected override void DoRender(RenderEventArgs arg)
{
this.SetUniform("renderWireframe", false);
base.DoRender(arg);
polygonModeState.On();
lineWidthState.On();
// offsetState.On();
this.SetUniform("renderWireframe", true);
base.DoRender(arg);
//offsetState.Off();
lineWidthState.Off();
polygonModeState.Off();
}
public override void Render(RenderEventArgs arg, ShaderProgram shaderProgram)
{
if (arg.RenderMode == RenderModes.ColorCodedPicking
&& arg.PickingGeometryType == GeometryType.Point
&& this.Mode.ToGeometryType() == GeometryType.Line)// picking point from a line
{
// this maybe render points that should not appear.
// so need to select by another picking
OpenGL.DrawArrays(DrawMode.Points, this.FirstVertex, this.VertexCount);
}
else
{
OpenGL.DrawArrays(this.Mode, this.FirstVertex, this.VertexCount);
}
}
protected override void DoRender(RenderEventArgs arg)
{
OpenGL.LoadIdentity();
this.LegacyTransform();
OpenGL.Begin(DrawMode.Lines);
for (int i = 0; i < markPosition.Count; i++)
{
vec3 color = markColor[i];
OpenGL.Color3f(color.x, color.y, color.z);
vec3 position = markPosition[i];
OpenGL.Vertex3f(position.x, position.y, position.z);
}
OpenGL.End();
}
public override void RenderBeforeChildren(CSharpGL.RenderEventArgs arg)
{
if (!this.IsInitialized)
{
this.Initialize();
}
ICamera camera = arg.CameraStack.Peek();
mat4 projectionMatrix = camera.GetProjectionMatrix();
mat4 viewMatrix = camera.GetViewMatrix();
mat4 modelMatrix = this.GetModelMatrix();
RenderMethod method = this.RenderUnit.Methods[0];
ShaderProgram program = method.Program;
program.SetUniform(mvpMatrix, projectionMatrix * viewMatrix * modelMatrix);
program.SetUniform(skybox, this.texture);
method.Render();
}
public override void RenderBeforeChildren(RenderEventArgs arg)
{
}
protected override void DoRender(RenderEventArgs arg)
{
circleRenderer.Render(arg);
markRenderer.Render(arg);
pinRenderer.Render(arg);
}
/// <summary> /// 执行此VBO的渲染操作。 /// <para>Render using this VBO.</para> /// </summary> /// <param name="arg"></param> public abstract void Render(RenderEventArgs arg);
public override PickedGeometry GetPickedGeometry(RenderEventArgs arg, uint stageVertexId,
int x, int y)
{
uint lastVertexId;
if (!this.GetLastVertexIdOfPickedGeometry(stageVertexId, out lastVertexId))
{
return(null);
}
// 找到 lastIndexId
RecognizedPrimitiveInfo lastIndexId = this.GetLastIndexIdOfPickedGeometry(
arg, lastVertexId, x, y);
if (lastIndexId == null)
{
Debug.WriteLine(string.Format(
"Got lastVertexId[{0}] but no lastIndexId! Params are [{1}] [{2}] [{3}] [{4}]",
lastVertexId, arg, stageVertexId, x, y));
{ return(null); }
}
GeometryType geometryType = arg.PickingGeometryType;
DrawMode mode = this.indexBufferPtr.Mode;
GeometryType typeOfMode = mode.ToGeometryType();
if (geometryType == GeometryType.Point)
{
// 获取pickedGeometry
if (typeOfMode == GeometryType.Point)
{
return(PickWhateverItIs(stageVertexId, lastIndexId, typeOfMode));
}
else if (typeOfMode == GeometryType.Line)
{
if (this.OnPrimitiveTest(lastVertexId, mode))
{
return(PickPoint(stageVertexId, lastVertexId));
}
else
{
return(null);
}
}
else
{
OneIndexPointSearcher searcher = GetPointSearcher(mode);
if (searcher != null)// line is from triangle, quad or polygon
{
return(SearchPoint(arg, stageVertexId, x, y, lastVertexId, lastIndexId, searcher));
}
else
{
throw new Exception(string.Format("Lack of searcher for [{0}]", mode));
}
}
}
else if (geometryType == GeometryType.Line)
{
// 获取pickedGeometry
if (geometryType == typeOfMode)
{
return(PickWhateverItIs(stageVertexId, lastIndexId, typeOfMode));
}
else
{
OneIndexLineSearcher searcher = GetLineSearcher(mode);
if (searcher != null)// line is from triangle, quad or polygon
{
return(SearchLine(arg, stageVertexId, x, y, lastVertexId, lastIndexId, searcher));
}
else if (mode == DrawMode.Points)// want a line when rendering GL_POINTS
{
return(null);
}
else
{
throw new Exception(string.Format("Lack of searcher for [{0}]", mode));
}
}
}
else
{
if (typeOfMode == geometryType)// I want what it is
{
return(PickWhateverItIs(stageVertexId, lastIndexId, typeOfMode));
}
else
{
return(null);
}
//{ throw new Exception(string.Format("Lack of searcher for [{0}]", mode)); }
}
}
/// <summary>
///
/// </summary>
/// <param name="arg"></param>
/// <param name="stageVertexId"></param>
/// <param name="x">mouse position(Left Down is (0, 0)).</param>
/// <param name="y">mouse position(Left Down is (0, 0)).</param>
/// <returns></returns>
public abstract PickedGeometry GetPickedGeometry(
RenderEventArgs arg,
uint stageVertexId,
int x, int y);
internal abstract uint[] Search(RenderEventArgs arg,
int x, int y,
uint lastVertexId, ZeroIndexRenderer modernRenderer);
/// <summary>
///
/// </summary>
/// <param name="arg"></param>
public override void Render(RenderEventArgs arg)
{
int primCount = this.PrimCount;
if (primCount < 1)
{
throw new Exception("error: primCount is less than 1.");
}
uint mode = 0;
IntPtr offset;
if (arg.PickingGeometryType == PickingGeometryType.Point &&
this.Mode.ToGeometryType() == PickingGeometryType.Line) // picking point from a line
{
// this may render points that should not appear.
// so need to select by another picking.
mode = (uint)DrawMode.Points;
}
else
{
mode = (uint)this.Mode;
}
switch (this.ElementType)
{
case IndexBufferElementType.UByte:
offset = new IntPtr(this.FirstIndex * sizeof(byte));
break;
case IndexBufferElementType.UShort:
offset = new IntPtr(this.FirstIndex * sizeof(ushort));
break;
case IndexBufferElementType.UInt:
offset = new IntPtr(this.FirstIndex * sizeof(uint));
break;
default:
throw new NotImplementedException();
}
if (glBindBuffer == null)
{
glBindBuffer = OpenGL.GetDelegateFor <OpenGL.glBindBuffer>();
}
glBindBuffer(OpenGL.GL_ELEMENT_ARRAY_BUFFER, this.BufferId);
if (primCount == 1)
{
OpenGL.DrawElements(mode, this.ElementCount, (uint)this.ElementType, offset);
}
else
{
if (glDrawElementsInstanced == null)
{
glDrawElementsInstanced = OpenGL.GetDelegateFor <OpenGL.glDrawElementsInstanced>();
}
glDrawElementsInstanced(mode, this.ElementCount, (uint)this.ElementType, offset, primCount);
}
glBindBuffer(OpenGL.GL_ELEMENT_ARRAY_BUFFER, 0);
}
public void RenderAfterChildren(RenderEventArgs arg)
{
}
protected override void DoRender(RenderEventArgs arg)
{
ShaderProgram program = this.shaderProgram;
if (program == null)
{
return;
}
// 绑定shader
program.Bind();
var updatedUniforms = (from item in this.uniformVariables where item.Updated select item).ToArray();
foreach (var item in updatedUniforms)
{
item.SetUniform(program);
}
int count = this.switchList.Count;
for (int i = 0; i < count; i++)
{
this.switchList[i].On();
}
IndexBufferPtr indexBufferPtr = this.indexBufferPtr;
if (this.vertexArrayObject == null)
{
PropertyBufferPtr[] propertyBufferPtrs = this.propertyBufferPtrs;
if (indexBufferPtr != null && propertyBufferPtrs != null)
{
var vertexArrayObject = new VertexArrayObject(
indexBufferPtr, propertyBufferPtrs);
vertexArrayObject.Create(arg, program);
this.vertexArrayObject = vertexArrayObject;
}
}
{
VertexArrayObject vertexArrayObject = this.vertexArrayObject;
if (vertexArrayObject != null)
{
if (vertexArrayObject.IndexBufferPtr != indexBufferPtr)
{
vertexArrayObject.IndexBufferPtr = indexBufferPtr;
}
vertexArrayObject.Render(arg, program);
}
}
for (int i = count - 1; i >= 0; i--)
{
this.switchList[i].Off();
}
foreach (var item in updatedUniforms)
{
item.ResetUniform(program);
}
// 解绑shader
program.Unbind();
}
/// <summary>
///
/// </summary>
/// <param name="arg"></param>
public override void RenderAfterChildren(RenderEventArgs arg)
{
throw new NotImplementedException();
}
public override void RenderAfterChildren(RenderEventArgs arg)
{
}
/// <summary> /// 执行此VBO的渲染操作。 /// </summary> /// <param name="e"></param> /// <param name="shaderProgram">此VBO使用的shader program。</param> public abstract void Render(RenderEventArgs e, ShaderProgram shaderProgram);
private PickedGeometry PickWhateverItIs(RenderEventArgs arg, uint stageVertexId, uint lastVertexId, DrawMode mode, PickingGeometryType typeOfMode)
{
//PickedGeometry pickedGeometry = new PickedGeometry();
//pickedGeometry.GeometryType = typeOfMode;
//pickedGeometry.StageVertexId = stageVertexId;
//pickedGeometry.FromRenderer = this;
// Fill primitive's position information.
int vertexCount = typeOfMode.GetVertexCount();
if (vertexCount == -1)
{
vertexCount = this.PositionBuffer.Length;
}
uint[] vertexIds; vec3[] positions;
if (lastVertexId == 0 && vertexCount == 2)
{
// This is when mode is GL_LINE_LOOP and picked last line(the loop back one)
PickingLastLineInLineLoop(out vertexIds, out positions);
}
else
{
// Other conditions
switch (typeOfMode)
{
case PickingGeometryType.Point:
vertexIds = new uint[] { lastVertexId, };
positions = FillPickedGeometrysPosition(lastVertexId, 1);
break;
case PickingGeometryType.Line:
vertexIds = new uint[] { lastVertexId - 1, lastVertexId, };
positions = FillPickedGeometrysPosition(lastVertexId - 1, 2);
break;
case PickingGeometryType.Triangle:
if (mode == DrawMode.TriangleFan)
{
vertexIds = new uint[] { 0, lastVertexId - 1, lastVertexId, };
positions = FillPickedGeometrysPosition(vertexIds);
}
else if (mode == DrawMode.TrianglesAdjacency || mode == DrawMode.TriangleStripAdjacency)
{
vertexIds = new uint[] { lastVertexId - 4, lastVertexId - 2, lastVertexId, };
positions = FillPickedGeometrysPosition(vertexIds);
}
else
{
vertexIds = new uint[] { lastVertexId - 2, lastVertexId - 1, lastVertexId, };
positions = FillPickedGeometrysPosition(lastVertexId - 2, 3);
}
break;
case PickingGeometryType.Quad:
vertexIds = new uint[] { lastVertexId - 3, lastVertexId - 2, lastVertexId - 1, lastVertexId, };
positions = FillPickedGeometrysPosition(lastVertexId - 3, 4);
break;
case PickingGeometryType.Polygon:
vertexIds = new uint[vertexCount];
for (uint i = 0; i < vertexCount; i++)
{
vertexIds[i] = lastVertexId + i;
}
positions = FillPickedGeometrysPosition(0, vertexCount);
break;
default:
throw new NotImplementedException();
}
}
PickedGeometry pickedGeometry = new PickedGeometry(arg.UsingViewPort, typeOfMode, positions, vertexIds, stageVertexId, this);
return(pickedGeometry);
}
/// <summary>
///
/// </summary>
/// <param name="arg"></param>
/// <param name="stageVertexId"></param>
/// <param name="x">mouse position(Left Down is (0, 0)).</param>
/// <param name="y">mouse position(Left Down is (0, 0)).</param>
/// <returns></returns>
public override PickedGeometry GetPickedGeometry(RenderEventArgs arg, uint stageVertexId,
int x, int y)
{
uint lastVertexId;
if (!this.GetLastVertexIdOfPickedGeometry(stageVertexId, out lastVertexId))
{
return(null);
}
PickingGeometryType geometryType = arg.PickingGeometryType;
if (geometryType == PickingGeometryType.Point)
{
DrawMode mode = this.indexBuffer.Mode;
PickingGeometryType typeOfMode = mode.ToGeometryType();
if (typeOfMode == PickingGeometryType.Point)
{
return(PickWhateverItIs(arg, stageVertexId, lastVertexId, mode, typeOfMode));
}
else if (typeOfMode == PickingGeometryType.Line)
{
if (this.OnPrimitiveTest(lastVertexId, mode))
{
return(PickPoint(arg, stageVertexId, lastVertexId));
}
else
{
return(null);
}
}
else
{
ZeroIndexPointSearcher searcher = GetPointSearcher(mode);
if (searcher != null)// point is from triangle, quad or polygon
{
return(SearchPoint(arg, stageVertexId, x, y, lastVertexId, searcher));
}
else
{
throw new Exception(string.Format("Lack of searcher for [{0}]", mode));
}
}
}
else if (geometryType == PickingGeometryType.Line)
{
DrawMode mode = this.indexBuffer.Mode;
PickingGeometryType typeOfMode = mode.ToGeometryType();
if (geometryType == typeOfMode)
{
return(PickWhateverItIs(arg, stageVertexId, lastVertexId, mode, typeOfMode));
}
else
{
ZeroIndexLineSearcher searcher = GetLineSearcher(mode);
if (searcher != null)// line is from triangle, quad or polygon
{
return(SearchLine(arg, stageVertexId, x, y, lastVertexId, searcher));
}
else if (mode == DrawMode.Points)// want a line when rendering GL_POINTS
{
return(null);
}
else
{
throw new Exception(string.Format("Lack of searcher for [{0}]", mode));
}
}
}
else
{
DrawMode mode = this.indexBuffer.Mode;
PickingGeometryType typeOfMode = mode.ToGeometryType();
if (typeOfMode == geometryType)// I want what it is
{
return(PickWhateverItIs(arg, stageVertexId, lastVertexId, mode, typeOfMode));
}
else
{
return(null);
}
//{ throw new Exception(string.Format("Lack of searcher for [{0}]", mode)); }
}
}
public override void RenderAfterChildren(CSharpGL.RenderEventArgs arg)
{
}
/// <summary> /// Render something. /// </summary> /// <param name="arg"></param> protected abstract void DoRender(RenderEventArgs arg);
/// <summary> /// Render something before renddering children. /// </summary> /// <param name="arg"></param> public abstract void RenderBeforeChildren(RenderEventArgs arg);
/// <summary> /// Render something after renddering children. /// </summary> /// <param name="arg"></param> public abstract void RenderAfterChildren(RenderEventArgs arg);