protected override void DoInitialize()
{
// init shader program
this.shaderProgram = PickingShaderHelper.GetPickingShaderProgram();
// init property buffer objects
var propertyBufferPtrs = new PropertyBufferPtr[propertyNameMap.Count()];
int index = 0;
foreach (var item in propertyNameMap)
{
PropertyBufferPtr bufferPtr = this.bufferable.GetProperty(
item.nameInIBufferable, item.VarNameInShader);
if (bufferPtr == null) { throw new Exception(); }
propertyBufferPtrs[index++] = bufferPtr;
}
this.propertyBufferPtrs = propertyBufferPtrs;
this.indexBufferPtr = this.bufferable.GetIndex();
foreach (var item in propertyNameMap)
{
PropertyBufferPtr bufferPtr = this.bufferable.GetProperty(
item.nameInIBufferable, item.VarNameInShader);
if (bufferPtr == null) { throw new Exception(); }
if (item.nameInIBufferable == positionNameInIBufferable)
{
this.positionBufferPtr = new PropertyBufferPtr(
"in_Position",// in_Postion same with in the PickingShader.vert shader
bufferPtr.BufferId,
bufferPtr.DataSize,
bufferPtr.DataType,
bufferPtr.Length,
bufferPtr.ByteLength);
break;
}
}
// RULE: Renderer takes uint.MaxValue, ushort.MaxValue or byte.MaxValue as PrimitiveRestartIndex. So take care this rule when designing a model's index buffer.
var ptr = this.indexBufferPtr as OneIndexBufferPtr;
if (ptr != null)
{
GLSwitch glSwitch = new PrimitiveRestartSwitch(ptr);
this.switchList.Add(glSwitch);
}
// 由于picking.vert/frag只支持vec3的position buffer，所以有此硬性规定。
if (this.positionBufferPtr.DataSize != 3 || this.positionBufferPtr.DataType != OpenGL.GL_FLOAT)
{ throw new Exception(string.Format("Position buffer must use a type composed of 3 float as PropertyBuffer<T>'s T!")); }
}
/// <summary>
/// 支持UI布局的渲染器
/// </summary>
/// <param name="modernRenderer">要渲染的对象</param>
/// <param name="Anchor">绑定到窗口的哪些边？</param>
/// <param name="Margin">到绑定边的距离</param>
/// <param name="Size">UI大小</param>
/// <param name="zNear"></param>
/// <param name="zFar"></param>
public UIAxisRenderer(
System.Windows.Forms.AnchorStyles Anchor,
System.Windows.Forms.Padding Margin,
System.Drawing.Size Size,
int zNear = -1000,
int zFar = 1000
)
: base(null, Anchor, Margin, Size, zNear, zFar)
{
ShaderCode[] shaderCodes = new ShaderCode[2];
shaderCodes[0] = new ShaderCode(File.ReadAllText(@"01Renderer\Simple.vert"), ShaderType.VertexShader);
shaderCodes[1] = new ShaderCode(File.ReadAllText(@"01Renderer\Simple.frag"), ShaderType.FragmentShader);
var propertyNameMap = new PropertyNameMap();
propertyNameMap.Add("in_Position", "position");
propertyNameMap.Add("in_Color", "color");
PickableRenderer pickableRenderer = PickableRendererFactory.GetRenderer(
new Axis(), shaderCodes, propertyNameMap, "position");
pickableRenderer.Name = string.Format("Pickable: [{0}]", "Axis");
pickableRenderer.Initialize();
{
GLSwitch lineWidthSwitch = new LineWidthSwitch(10);
pickableRenderer.SwitchList.Add(lineWidthSwitch);
GLSwitch pointSizeSwitch = new PointSizeSwitch(10);
pickableRenderer.SwitchList.Add(pointSizeSwitch);
GLSwitch polygonModeSwitch = new PolygonModeSwitch(PolygonModes.Filled);
pickableRenderer.SwitchList.Add(polygonModeSwitch);
if (pickableRenderer is OneIndexRenderer)
{
GLSwitch primitiveRestartSwitch = new PrimitiveRestartSwitch((pickableRenderer as OneIndexRenderer).IndexBufferPtr);
pickableRenderer.SwitchList.Add(primitiveRestartSwitch);
}
}
this.renderer = pickableRenderer;
this.textList.Add(new Tuple <vec3, string, Font, Color>(new vec3(offset, 0, 0), "X", new Font("Courier New", fontSize), Color.Red));
this.textList.Add(new Tuple <vec3, string, Font, Color>(new vec3(0, offset, 0), "Y", new Font("Courier New", fontSize), Color.Green));
this.textList.Add(new Tuple <vec3, string, Font, Color>(new vec3(0, 0, offset), "Z", new Font("Courier New", fontSize), Color.Blue));
}
