/// <summary>
/// Large vertex displacements such as are possible with C3E4v_twist
/// require a high degree of tessellation. This routine draws a
/// triangle recursively subdivided to provide sufficient tessellation. */
/// </summary>
static void DrawSubDividedTriangle(ManualObject obj, int subdivisions)
{
float[] a = new float[2] {
-0.8f, 0.8f
};
float[] b = new float[2] {
0.8f, 0.8f
};
float[] c = new float[2] {
0.0f, -0.8f
};
float[] ca = new float[3] {
0, 0, 1
};
float[] cb = new float[3] {
0, 0, 1
};
float[] cc = new float[3] {
0.7f, 0.7f, 1
};
RenderOperation.OperationTypes operation = RenderOperation.OperationTypes.OT_TRIANGLE_LIST;
obj.Begin("CgTutorials/C3E4_Material", operation);
TriangleDivide(obj, subdivisions, a, b, c, ca, cb, cc);
obj.End();
}
private void CreateLine(ManualObject mo, Vector3 origin, Vector3 final, int useMaterial, Vector4 color)
{
float lineWidth = 0.1f;
RenderOperation.OperationTypes operation = RenderOperation.OperationTypes.OT_TRIANGLE_FAN;
switch (useMaterial)
{
case 1:
mo.Begin("SharpMap/Line3D_v1", operation);
break;
default:
MaterialPtr material = MaterialManager.Singleton.CreateOrRetrieve("Test/ColourLines3d",
ResourceGroupManager.DEFAULT_RESOURCE_GROUP_NAME).first;
material.GetTechnique(0).GetPass(0).VertexColourTracking =
(int)TrackVertexColourEnum.TVC_AMBIENT;
mo.Begin("Test/ColourLines3d", operation);
break;
}
Vector3 delta = final - origin;
delta = new Vector3(-delta.y, delta.x, delta.z).NormalisedCopy *lineWidth;
mo.Position(origin);
mo.Position(final);
mo.Position(final + delta);
mo.Position(origin + delta);
//lines3d.TextureCoord((float)i / (float)pointsList.Count);
ManualObject.ManualObjectSection section = lines3d.End();
section.SetCustomParameter(constantColor, color);
}
private bool CheckSubMeshOpType(MeshPtr mesh, RenderOperation.OperationTypes opType)
{
for (ushort i = 0; i < mesh.NumSubMeshes; i++)
{
if (mesh.GetSubMesh(i).operationType != opType)
{
return(false);
}
}
return(true);
}
public void BeginBlock()
{
Console.WriteLine("BeginBlock");
pointsList = new List <Point>();
if (rendererObj == null)
{
rendererObj = sceneManager.CreateManualObject("Element" + count);
count++;
}
RenderOperation.OperationTypes operation = RenderOperation.OperationTypes.OT_TRIANGLE_LIST;
MaterialPtr material = MaterialManager.Singleton.CreateOrRetrieve("Test/ColourLines3d",
ResourceGroupManager.DEFAULT_RESOURCE_GROUP_NAME).first;
material.GetTechnique(0).GetPass(0).VertexColourTracking =
(int)TrackVertexColourEnum.TVC_AMBIENT;
rendererObj.Begin("Test/ColourLines3d", operation);
}
static ManualObject DrawTriangle(ManualObject obj)
{
RenderOperation.OperationTypes operation = RenderOperation.OperationTypes.OT_TRIANGLE_LIST;
obj.Begin("CgTutorials/C3E2_Material", operation);
obj.Position(0.0f, -0.8f, 0.0f);
obj.Colour(0, 0, 1); /* Blue */
obj.Position(0.8f, 0.8f, 0.0f);
obj.Colour(0, 1, 0); /* Green */
obj.Position(-0.8f, 0.8f, 0.0f);
obj.Colour(1, 0, 0); /* Red */
obj.End();
return(obj);
}
static ManualObject DrawTriangle(ManualObject obj)
{
RenderOperation.OperationTypes operation = RenderOperation.OperationTypes.OT_TRIANGLE_LIST;
obj.Begin("CgTutorials/C3E5_Material", operation);
obj.Position(0.0f, -0.8f, 0.0f);
obj.TextureCoord(0, 0);
obj.Position(0.8f, 0.8f, 0.0f);
obj.TextureCoord(1, 0);
obj.Position(-0.8f, 0.8f, 0.0f);
obj.TextureCoord(0.5f, 1);
obj.End();
return(obj);
}
1, 2, 3 }; // back face
/*
* static public void CreateBoidMesh(string name, string color)
* {
* Vector3[] colors = baseColors;
* if (color.Equals("green"))
* {
* colors[0] = colors[1] = colors[2] = new Vector3(0.0f, 1.0f, 0.0f);
* }
* else if (color.Equals("red"))
* {
* colors[0] = colors[1] = colors[2] = new Vector3(1.0f, 0.0f, 0.0f);
* }
*
* // Return now if already exists
* if (MeshManager.Singleton.ResourceExists(name))
* return;
*
* MeshBuilderHelper mbh = new MeshBuilderHelper(name, "Flocking", false, 0, (uint)pts.Length);
*
* UInt32 offPos = mbh.AddElement(VertexElementType.VET_FLOAT3, VertexElementSemantic.VES_POSITION).Offset;
* UInt32 offDiff = mbh.AddElement(VertexElementType.VET_FLOAT3, VertexElementSemantic.VES_DIFFUSE).Offset;
*
* mbh.CreateVertexBuffer(HardwareBuffer.Usage.HBU_STATIC_WRITE_ONLY);
* for (int count = 0; count < pts.Length; count++)
* {
* mbh.SetVertFloat((uint)count, offPos, pts[count].x, pts[count].y, pts[count].z); //position
* mbh.SetVertFloat((uint)count, offDiff, colors[count].x, colors[count].y, colors[count].z); //color
* }
*
* mbh.CreateIndexBuffer((uint)(indices.Length / 3), HardwareIndexBuffer.IndexType.IT_16BIT, HardwareBuffer.Usage.HBU_STATIC_WRITE_ONLY);
* for (uint index = 0; index < indices.Length / 3; index++)
* {
* mbh.SetIndex16bit(index, (UInt16)(indices[index * 3]),
* (UInt16)(indices[index * 3 + 1]),
* (UInt16)(indices[index * 3 + 2]));
* }
*
* MaterialPtr material = MaterialManager.Singleton.CreateOrRetrieve("Test/ColourTest", ResourceGroupManager.DEFAULT_RESOURCE_GROUP_NAME).first;
* material.GetTechnique(0).GetPass(0).VertexColourTracking = (int)TrackVertexColourEnum.TVC_AMBIENT;
* MeshPtr m = mbh.Load("Test/ColourTest");
* m._setBounds(new AxisAlignedBox(-1.0f, -1.0f, -1.0f,
* 1.0f, 1.0f, 1.0f), false);
* m._setBoundingSphereRadius((float)System.Math.Sqrt(1.0f * 1.0f + 1.0f * 1.0f));
* }
*/
public static ManualObject CreateBoidObject(string name, SceneManager sceneMgr, string color)
{
Vector3[] colors = baseColors;
if (color.Equals("green"))
{
colors[0] = colors[1] = colors[2] = new Vector3(0.0f, 1.0f, 0.0f);
}
else if (color.Equals("red"))
{
colors[0] = colors[1] = colors[2] = new Vector3(1.0f, 0.0f, 0.0f);
}
// Return now if already exists
if (MeshManager.Singleton.ResourceExists(name))
{
return(null);
}
ManualObject boidObj = sceneMgr.CreateManualObject(name);
RenderOperation.OperationTypes operation = RenderOperation.OperationTypes.OT_TRIANGLE_LIST;
MaterialPtr material = MaterialManager.Singleton.CreateOrRetrieve("Test/Boid", ResourceGroupManager.DEFAULT_RESOURCE_GROUP_NAME).first;
material.GetTechnique(0).GetPass(0).VertexColourTracking = (int)TrackVertexColourEnum.TVC_AMBIENT;
boidObj.Begin("Test/Boid", operation);
for (int count = 0; count < pts.Length; count++)
{
boidObj.Position(pts[count]); //position
boidObj.Colour(colors[count].x, colors[count].y, colors[count].z); //color
}
for (uint index = 0; index < indices.Length / 3; index++)
{
boidObj.Index((ushort)(indices[index * 3]));
boidObj.Index((ushort)(indices[index * 3 + 1]));
boidObj.Index((ushort)(indices[index * 3 + 2]));
}
boidObj.End();
return(boidObj);
}
public ManualObject CreateNode(string name, SceneManager sceneMgr)
{
ManualObject manualObj = sceneMgr.CreateManualObject(name);
RenderOperation.OperationTypes operation = RenderOperation.OperationTypes.OT_TRIANGLE_LIST;
MaterialPtr material = MaterialManager.Singleton.Create("Test/Tutorial00",
ResourceGroupManager.DEFAULT_RESOURCE_GROUP_NAME);
material.GetTechnique(0).GetPass(0).VertexColourTracking =
(int)TrackVertexColourEnum.TVC_AMBIENT;
manualObj.Begin("Test/Tutorial00", operation);
manualObj.Position(-5.0f, 0.0f, 0.0f);
manualObj.Position(5.0f, 0.0f, 0.0f);
manualObj.Position(0.0f, 5.0f, 0.0f);
manualObj.End();
return(manualObj);
}
static void DrawStar(ManualObject obj, float x, float y, int starPoints, float R, float r)
{
int i;
float piOverStarPoints = 3.14159f / starPoints,
angle = 0.0f;
RenderOperation.OperationTypes operation = RenderOperation.OperationTypes.OT_TRIANGLE_FAN;
obj.Begin("CgTutorials/C2E2_green_Material", operation);
obj.Position(x, y, 0.0f); /* Center of star */
/* Emit exterior vertices for star's points. */
for (i = 0; i < starPoints; i++)
{
obj.Position(x + R * Math.Cos(angle), y + R * Math.Sin(angle), 0.0f);
angle += piOverStarPoints;
obj.Position(x + r * Math.Cos(angle), y + r * Math.Sin(angle), 0.0f);
angle += piOverStarPoints;
}
/* End by repeating first exterior vertex of star. */
angle = 0;
obj.Position(x + R * Math.Cos(angle), y + R * Math.Sin(angle), 0.0f);
obj.End();
}
public ManualObject CreateNode(string name, SceneManager sceneMgr, bool useScreenPos)
{
ManualObject manualObj = sceneMgr.CreateManualObject(name);
RenderOperation.OperationTypes operation = RenderOperation.OperationTypes.OT_TRIANGLE_LIST;
if (useScreenPos)
{
manualObj.Begin("CgTutorials/C2E1v_green_Material", operation);
}
else
{
manualObj.Begin("CgTutorials/C2E1v_green_Material_2", operation);
}
manualObj.Position(-0.5f, 0.0f, 0.0f);
manualObj.Position(0.5f, 0.0f, 0.0f);
manualObj.Position(0.0f, 0.5f, 0.0f);
manualObj.End();
return(manualObj);
}
static ManualObject.ManualObjectSection BuildTerrainBlock(ManualObject obj, ushort pointsX, ushort pointsY,
Vector4 translationScale, Vector4 color)
{
RenderOperation.OperationTypes operation = RenderOperation.OperationTypes.OT_TRIANGLE_STRIP;
obj.Begin("Terrain/Terrain_Material", operation);
/*
* This function uses one big zigzag triangle strip for the whole grid.
* And insert degenerated (invisible) triangles to join 2 rows. For instance:
* 0 1 2 3
* 4 5 6 7
* 8 9 10 11
* 12 13 14 15
*
* The index buffer would look like :
* 0, 4, 1, 5, 2, 6, 3, 7, 7, 7, 11, 6, 10, 5, 9, 4, 8, 8, 8, 12, 9, 13, 10, 14, 11, 15
*/
for (int y = pointsY - 1; y >= 0; y--)
{
for (int x = 0; x <= pointsX - 1; x++)
{
obj.Position(x, y, 0.0f);
obj.TextureCoord((float)x / (float)(pointsX), (float)y / (float)(pointsY));
}
}
//Console.Write("\n Index:");
// We have pointsX -1 lines
for (ushort y = 0; y < pointsY - 1; y++)
{
if (y % 2 == 0)
{
for (int x = 0; x < pointsX; x++)
{
obj.Index((ushort)(y * pointsX + x)); //(x, y + 1, 0.0f);
//Console.Write("," + (y * pointsX + x));
obj.Index((ushort)(y * pointsX + x + pointsX)); //(x, y, 0.0f);
//Console.Write("," + (y * pointsX + x + pointsX));
}
if (y != pointsY - 2)
{
obj.Index((ushort)(y * pointsX + pointsX - 1)); //(0, y+1, 0.0f);
//Console.Write("," + (y * pointsX + 2 * pointsX - 1));
}
}
else
{
for (int x = pointsX - 1; x >= 0; x--)
{
obj.Index((ushort)(y * pointsX + x)); //(x, y + 1, 0.0f);
//Console.Write(", " + (y * pointsX + x));
obj.Index((ushort)(y * pointsX + x + pointsX)); //(x, y, 0.0f);
//Console.Write(", " + (y * pointsX + x + pointsX));
}
if (y != pointsY - 2)
{
obj.Index((ushort)(y * pointsX + pointsX)); //(0, y+1, 0.0f);
//Console.Write(", " + (y * pointsX + pointsX));
}
}
}
//Console.WriteLine(";");
ManualObject.ManualObjectSection manualObjSec1 = obj.End();
obj.BoundingBox = new AxisAlignedBox(translationScale.x,
translationScale.y, -1,
(pointsX * translationScale.z + translationScale.x),
(pointsY * translationScale.w + translationScale.y), 1);
manualObjSec1.SetCustomParameter(TransXYscaleXY, translationScale);
manualObjSec1.SetCustomParameter(ColorAndHeightScale, color);
return(manualObjSec1);
}
