public static Mesh TriangulateFaces(this IVertexSource vertexSource, CachedTesselator teselatedSource = null)
{
if (teselatedSource == null)
{
teselatedSource = new CachedTesselator();
}
VertexSourceToTesselator.SendShapeToTesselator(teselatedSource, vertexSource);
Mesh mesh = new Mesh();
int numIndicies = teselatedSource.IndicesCache.Count;
// turn the tessellation output into mesh faces
for (int i = 0; i < numIndicies; i += 3)
{
Vector2 v0 = teselatedSource.VerticesCache[teselatedSource.IndicesCache[i + 0].Index].Position;
Vector2 v1 = teselatedSource.VerticesCache[teselatedSource.IndicesCache[i + 1].Index].Position;
Vector2 v2 = teselatedSource.VerticesCache[teselatedSource.IndicesCache[i + 2].Index].Position;
if (v0 == v1 || v1 == v2 || v2 == v0)
{
continue;
}
mesh.CreateFace(new Vector3[] { new Vector3(v0, 0), new Vector3(v1, 0), new Vector3(v2, 0) });
}
return(mesh);
}
public override void Render(IVertexSource vertexSource, int pathIndexToRender, IColorType colorIn)
{
PreRender();
if (DoEdgeAntiAliasing)
{
DrawAAShape(vertexSource, colorIn);
}
else
{
vertexSource.rewind(pathIndexToRender);
Affine transform = GetTransform();
if (!transform.is_identity())
{
vertexSource = new VertexSourceApplyTransform(vertexSource, transform);
}
RGBA_Bytes colorBytes = colorIn.GetAsRGBA_Bytes();
GL.Color4(colorBytes.red, colorBytes.green, colorBytes.blue, colorBytes.alpha);
renderNowTesselator.Clear();
VertexSourceToTesselator.SendShapeToTesselator(renderNowTesselator, vertexSource);
}
PopOrthoProjection();
}
private static Mesh TriangulateFaces(IVertexSource vertexSource, CachedTesselator teselatedSource)
{
VertexSourceToTesselator.SendShapeToTesselator(teselatedSource, vertexSource);
Mesh teselatedMesh = new Mesh();
int numIndicies = teselatedSource.IndicesCache.Count;
// turn the tessellation output into mesh faces
for (int i = 0; i < numIndicies; i += 3)
{
Vector2 v0 = teselatedSource.VerticesCache[teselatedSource.IndicesCache[i + 0].Index].Position;
Vector2 v1 = teselatedSource.VerticesCache[teselatedSource.IndicesCache[i + 1].Index].Position;
Vector2 v2 = teselatedSource.VerticesCache[teselatedSource.IndicesCache[i + 2].Index].Position;
if (v0 == v1 || v1 == v2 || v2 == v0)
{
continue;
}
IVertex topVertex0 = teselatedMesh.CreateVertex(new Vector3(v0, 0));
IVertex topVertex1 = teselatedMesh.CreateVertex(new Vector3(v1, 0));
IVertex topVertex2 = teselatedMesh.CreateVertex(new Vector3(v2, 0));
teselatedMesh.CreateFace(new IVertex[] { topVertex0, topVertex1, topVertex2 });
}
return(teselatedMesh);
}
private static Mesh TriangulateFaces(IVertexSource vertexSource, CachedTesselator teselatedSource)
{
VertexSourceToTesselator.SendShapeToTesselator(teselatedSource, vertexSource);
Mesh extrudedVertexSource = new Mesh();
int numIndicies = teselatedSource.IndicesCache.Count;
// build the top first so it will render first when we are translucent
for (int i = 0; i < numIndicies; i += 3)
{
Vector2 v0 = teselatedSource.VerticesCache[teselatedSource.IndicesCache[i + 0].Index].Position;
Vector2 v1 = teselatedSource.VerticesCache[teselatedSource.IndicesCache[i + 1].Index].Position;
Vector2 v2 = teselatedSource.VerticesCache[teselatedSource.IndicesCache[i + 2].Index].Position;
if (v0 == v1 || v1 == v2 || v2 == v0)
{
continue;
}
Vertex topVertex0 = extrudedVertexSource.CreateVertex(new Vector3(v0, 0));
Vertex topVertex1 = extrudedVertexSource.CreateVertex(new Vector3(v1, 0));
Vertex topVertex2 = extrudedVertexSource.CreateVertex(new Vector3(v2, 0));
extrudedVertexSource.CreateFace(new Vertex[] { topVertex0, topVertex1, topVertex2 });
}
return(extrudedVertexSource);
}
public static Mesh TriangulateFaces(this IEnumerable <VertexData> vertexSource,
CachedTesselator teselatedSource = null,
Mesh meshToAddTo = null,
double zHeight = 0)
{
if (teselatedSource == null)
{
teselatedSource = new CachedTesselator();
}
VertexSourceToTesselator.SendShapeToTesselator(teselatedSource, vertexSource);
if (meshToAddTo == null)
{
meshToAddTo = new Mesh();
}
int numIndicies = teselatedSource.IndicesCache.Count;
// turn the tessellation output into mesh faces
for (int i = 0; i < numIndicies; i += 3)
{
Vector2 v0 = teselatedSource.VerticesCache[teselatedSource.IndicesCache[i + 0].Index].Position;
Vector2 v1 = teselatedSource.VerticesCache[teselatedSource.IndicesCache[i + 1].Index].Position;
Vector2 v2 = teselatedSource.VerticesCache[teselatedSource.IndicesCache[i + 2].Index].Position;
if (v0 == v1 || v1 == v2 || v2 == v0)
{
continue;
}
meshToAddTo.CreateFace(new Vector3[] { new Vector3(v0, zHeight), new Vector3(v1, zHeight), new Vector3(v2, zHeight) });
}
return(meshToAddTo);
}
public static Mesh TriangulateFaces(this IEnumerable <VertexData> vertexSource,
CachedTesselator teselatedSource = null,
Mesh meshToAddTo = null,
double zHeight = 0,
Matrix4X4?inMatrix = null)
{
bool isIdentity = inMatrix == null || inMatrix.Value == Matrix4X4.Identity;
if (teselatedSource == null)
{
teselatedSource = new CachedTesselator();
}
VertexSourceToTesselator.SendShapeToTesselator(teselatedSource, vertexSource);
if (meshToAddTo == null)
{
meshToAddTo = new Mesh();
}
int numIndicies = teselatedSource.IndicesCache.Count;
// turn the tessellation output into mesh faces
for (int i = 0; i < numIndicies; i += 3)
{
Vector2 v0 = teselatedSource.VerticesCache[teselatedSource.IndicesCache[i + 0].Index].Position;
Vector2 v1 = teselatedSource.VerticesCache[teselatedSource.IndicesCache[i + 1].Index].Position;
Vector2 v2 = teselatedSource.VerticesCache[teselatedSource.IndicesCache[i + 2].Index].Position;
if (v0 == v1 || v1 == v2 || v2 == v0)
{
continue;
}
if (!isIdentity)
{
var matrix = inMatrix.Value;
meshToAddTo.CreateFace(new Vector3[]
{
new Vector3(v0, zHeight).Transform(matrix),
new Vector3(v1, zHeight).Transform(matrix),
new Vector3(v2, zHeight).Transform(matrix)
});
}
else
{
meshToAddTo.CreateFace(new Vector3[] { new Vector3(v0, zHeight), new Vector3(v1, zHeight), new Vector3(v2, zHeight) });
}
}
return(meshToAddTo);
}
public static void RenderPath(this WorldView world, IVertexSource vertexSource, Color color, bool doDepthTest)
{
AAGLTesselator tesselator;
if (!TesselatorsByWorld.TryGetValue(world, out tesselator))
{
// Update reference and store in dictionary
tesselator = new AAGLTesselator(world);
TesselatorsByWorld.Add(world, tesselator);
}
// TODO: Necessary?
// CheckLineImageCache();
// GL.Enable(EnableCap.Texture2D);
// GL.BindTexture(TextureTarget.Texture2D, RenderOpenGl.ImageGlPlugin.GetImageGlPlugin(AATextureImages[color.Alpha0To255], false).GLTextureHandle);
// the source is always all white so has no does not have its color changed by the alpha
GL.BlendFunc(BlendingFactorSrc.One, BlendingFactorDest.OneMinusSrcAlpha);
GL.Enable(EnableCap.Blend);
GL.Disable(EnableCap.CullFace);
GL.Disable(EnableCap.Lighting);
if (doDepthTest)
{
GL.Enable(EnableCap.DepthTest);
}
else
{
GL.Disable(EnableCap.DepthTest);
}
vertexSource.rewind(0);
// the alpha has to come from the bound texture
GL.Color4(color.red, color.green, color.blue, (byte)255);
tesselator.Clear();
VertexSourceToTesselator.SendShapeToTesselator(tesselator, vertexSource);
// now render it
tesselator.RenderLastToGL();
}
public void DrawAAShape(IVertexSource vertexSource, IColorType colorIn)
{
vertexSource.rewind(0);
Affine transform = GetTransform();
if (!transform.is_identity())
{
vertexSource = new VertexSourceApplyTransform(vertexSource, transform);
}
RGBA_Bytes colorBytes = colorIn.GetAsRGBA_Bytes();
GL.Color4(colorBytes.red, colorBytes.green, colorBytes.blue, colorBytes.alpha);
triangleEddgeInfo.Clear();
VertexSourceToTesselator.SendShapeToTesselator(triangleEddgeInfo, vertexSource);
// now render it
triangleEddgeInfo.RenderLastToGL();
}
private void DrawAAShape(IVertexSource vertexSource, IColorType colorIn)
{
vertexSource.rewind(0);
Affine transform = GetTransform();
if (!transform.is_identity())
{
vertexSource = new VertexSourceApplyTransform(vertexSource, transform);
}
Color colorBytes = colorIn.ToColor();
// the alpha has come from the bound texture
GL.Color4(colorBytes.red, colorBytes.green, colorBytes.blue, (byte)255);
triangleEdgeInfo.Clear();
VertexSourceToTesselator.SendShapeToTesselator(triangleEdgeInfo, vertexSource);
// now render it
triangleEdgeInfo.RenderLastToGL();
}
