/// <summary>
///
/// </summary>
/// <param name="ctx"></param>
public ViewportState(GraphicsContext ctx)
{
int[] viewportCoords = new int[4];
// Get current viewport
Gl.Get(Gl.VIEWPORT, viewportCoords);
ViewportSize = new Vertex2f(viewportCoords[2] - viewportCoords[0], viewportCoords[3] - viewportCoords[1]);
}
public void Uniform2f()
{
if (!HasVersion(Gl.Version_200) && !HasVersion(Gl.Version_200_ES) && !HasExtension("GL_ARB_shader_objects"))
{
Assert.Inconclusive("required features not implemented");
}
using (Device device = new Device())
using (new GLContext(device))
{
uint program = CreateProgramUniform2f();
try {
Vertex2f uniformStruct;
float[] uniformValue;
int uniformLoc = Gl.GetUniformLocation(program, "uVec");
if (uniformLoc < 0)
{
throw new InvalidOperationException("no uniform variable");
}
// glGetUniformfv
uniformValue = Array2(1.0f);
Gl.GetUniform(program, uniformLoc, uniformValue);
CollectionAssert.AreEqual(Array2(0.0f), uniformValue);
// glGetUniformfv
uniformStruct = new Vertex2f(1.0f);
Gl.GetUniformf(program, uniformLoc, out uniformStruct);
Assert.AreEqual(Vertex2f.Zero, uniformStruct);
// glUniform2f
uniformValue = Array2(0.0f);
Gl.Uniform2(uniformLoc, Array2(1.0f));
Gl.GetUniform(program, uniformLoc, uniformValue);
CollectionAssert.AreEqual(Array2(1.0f), uniformValue);
// glUniform2fv
uniformValue = Array2(0.0f);
Gl.Uniform2(uniformLoc, Array2(9.0f));
Gl.GetUniform(program, uniformLoc, uniformValue);
CollectionAssert.AreEqual(Array2(9.0f), uniformValue);
// glUniform2fv
uniformValue = Array2(0.0f);
uniformStruct = new Vertex2f(5.0f);
Gl.Uniform2f(uniformLoc, 1, uniformStruct);
Gl.GetUniform(program, uniformLoc, uniformValue);
CollectionAssert.AreEqual(Array2(5.0f), uniformValue);
} finally {
Gl.DeleteProgram(program);
}
}
}
/// <summary>
/// Apply this depth test render state.
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> which has defined the shader program <paramref name="shaderProgram"/>.
/// </param>
/// <param name="shaderProgram">
/// The <see cref="ShaderProgram"/> which has the state set.
/// </param>
public override void ApplyState(GraphicsContext ctx, ShaderProgram shaderProgram)
{
int[] viewportCoords = new int[4];
// Get current viewport
Gl.Get(GetPName.Viewport, viewportCoords);
ViewportSize = new Vertex2f(viewportCoords[2] - viewportCoords[0], viewportCoords[3] - viewportCoords[1]);
// Base implementation
base.ApplyState(ctx, shaderProgram);
}
private void GenerateTangentsTriangle4f(IVertexArray positionArray, IVertexArray normalArray, IVertexArray texArray, IVertexArray tanArray, IVertexArray bitanArray)
{
uint count = (ElementCount != 0 ? ElementCount : _VertexArrayObject.ArrayLength) / 3;
for (uint i = 0, v = ElementOffset; i < count; i++, v += 3)
{
Vertex3f v0 = (Vertex3f)positionArray.GetElement <Vertex4f>(v);
Vertex3f v1 = (Vertex3f)positionArray.GetElement <Vertex4f>(v + 1);
Vertex3f v2 = (Vertex3f)positionArray.GetElement <Vertex4f>(v + 2);
Vertex2f t0 = texArray.GetElement <Vertex2f>(v);
Vertex2f t1 = texArray.GetElement <Vertex2f>(v + 1);
Vertex2f t2 = texArray.GetElement <Vertex2f>(v + 2);
Vertex3f dv1 = v1 - v0, dv2 = v2 - v0;
Vertex2f dt1 = t1 - t0, dt2 = t2 - t0;
float w = 1.0f / (dt1.x * dt2.y - dt1.y * dt2.x);
Vertex3f tgVector, btVector;
if (Single.IsInfinity(w) == false)
{
tgVector = (dv1 * dt2.y - dv2 * dt1.y) * w;
tgVector.Normalize();
btVector = (dv2 * dt1.x - dv1 * dt2.x) * w;
btVector.Normalize();
Vertex3f n = normalArray.GetElement <Vertex3f>(v).Normalized;
n.Normalize();
if (((n ^ tgVector) * btVector) < 0.0f)
{
tgVector = tgVector * -1.0f;
}
}
else
{
// Degenerate triangles does not contribute
tgVector = btVector = Vertex3f.Zero;
}
tanArray.SetElement <Vertex3f>(tgVector, v);
tanArray.SetElement <Vertex3f>(tgVector, v + 1);
tanArray.SetElement <Vertex3f>(tgVector, v + 2);
bitanArray.SetElement <Vertex3f>(btVector, v);
bitanArray.SetElement <Vertex3f>(btVector, v + 1);
bitanArray.SetElement <Vertex3f>(btVector, v + 2);
}
}
/// <summary>
/// Set uniform state variable (vec2 variable).
/// </summary>
/// <param name="uniformName">
/// A <see cref="String"/> that specify the variable name in the shader source.
/// </param>
/// <param name="v">
/// A <see cref="Vertex2f"/> holding the uniform variabile data.
/// </param>
public void SetUniform(string uniformName, Vertex2f v)
{
UniformSegment uniform = GetUniform(uniformName);
if (uniform == null)
{
return;
}
uniform.CheckType(Gl.FLOAT_VEC2, Gl.BOOL_VEC2);
Set(v, (ulong)uniform.Offset);
}
/// <summary>
/// Convert a <see cref="Single[]"/> to <see cref="Vertex2f[]"/>.
/// </summary>
/// <param name="array">
/// The <see cref="Single[]"/> to be converted.
/// </param>
/// <returns>
/// It returns the <see cref="Vertex2f[]"/> equivalent to <paramref name="array"/>.
/// </returns>
public static Vertex2f[] ToVertex2f(this float[] array)
{
int structArrayLength = array.Length / 2;
Vertex2f[] structArray = new Vertex2f[structArrayLength];
for (int i = 0, j = 0; i < structArrayLength; i++, j += 2)
{
structArray[i] = new Vertex2f(array[j + 0], array[j + 1]);
}
return(structArray);
}
public void TestUniform2f()
{
if (!HasVersion(2, 0) && !HasEsVersion(2, 0) && !IsGlExtensionSupported("GL_ARB_shader_objects"))
{
Assert.Inconclusive("required features not implemented");
}
uint program = CreateProgramUniform2f();
try {
Vertex2f uniformStruct;
float[] uniformValue;
int uniformLoc = Gl.GetUniformLocation(program, "uVec");
if (uniformLoc < 0)
{
throw new InvalidOperationException("no uniform variable");
}
// glGetUniformfv
uniformValue = Array2(1.0f);
Gl.GetUniform(program, uniformLoc, uniformValue);
CollectionAssert.AreEqual(Array2(0.0f), uniformValue);
// glGetUniformfv (ref)
uniformStruct = new Vertex2f(1.0f);
Gl.GetUniformf(program, uniformLoc, ref uniformStruct);
Assert.AreEqual(Vertex2f.Zero, uniformStruct);
// glUniform2f
uniformValue = Array2(0.0f);
Gl.Uniform2(uniformLoc, Array2(1.0f));
Gl.GetUniform(program, uniformLoc, uniformValue);
CollectionAssert.AreEqual(Array2(1.0f), uniformValue);
// glUniform2fv
uniformValue = Array2(0.0f);
Gl.Uniform2(uniformLoc, Array2(9.0f));
Gl.GetUniform(program, uniformLoc, uniformValue);
CollectionAssert.AreEqual(Array2(9.0f), uniformValue);
// glUniform2fv (ref)
uniformValue = Array2(0.0f);
uniformStruct = new Vertex2f(5.0f);
Gl.Uniform2f(uniformLoc, 1, ref uniformStruct);
Gl.GetUniform(program, uniformLoc, uniformValue);
CollectionAssert.AreEqual(Array2(5.0f), uniformValue);
} finally {
Gl.DeleteProgram(program);
}
}
private static void processVertex(ref string[] vertexData, ref List <uint> indices, ref List <Vertex2f> textures, ref List <Vertex3f> normals, ref float[] textureArray, ref float[] normalsArray)
{
uint currentVertexPointer = uint.Parse(vertexData[0]) - 1;
indices.Add(currentVertexPointer);
Vertex2f currentTex = textures[int.Parse(vertexData[1]) - 1];
textureArray[currentVertexPointer * 2] = currentTex.x;
textureArray[currentVertexPointer * 2 + 1] = 1 - currentTex.y;
Vertex3f currentNorm = normals[int.Parse(vertexData[2]) - 1];
normalsArray[currentVertexPointer * 3] = currentNorm.x;
normalsArray[currentVertexPointer * 3 + 1] = currentNorm.y;
normalsArray[currentVertexPointer * 3 + 2] = currentNorm.z;
}
/// <summary>
/// Merge this state with another one.
/// </summary>
/// <param name="state">
/// A <see cref="IGraphicsState"/> having the same <see cref="GraphicsState.StateIdentifier"/> of this state.
/// </param>
/// <remarks>
/// <para>
/// After a call to this routine, this IGraphicsState store the union of the previous information
/// and of the information of <paramref name="state"/>.
/// </para>
/// <para>
/// The semantic of the merge result is dependent on the actual implementation of this IGraphicsState. Normally
/// the merge method will copy <paramref name="state"/> into this IGraphicsState, but other state could do
/// different operations.
/// </para>
/// </remarks>
public override void Merge(IGraphicsState state)
{
if (state == null)
{
throw new ArgumentNullException("state");
}
if (state.StateIdentifier != StateId)
{
throw new ArgumentException("state id mismatch", "state");
}
ViewportState previousState = (ViewportState)state;
ViewportSize = previousState.ViewportSize;
}
/// <summary>
/// Get a list of <see cref="GlyphModelType"/> for a specific string and model-view-projection matrix.
/// </summary>
/// <param name="modelview"></param>
/// <param name="s"></param>
/// <returns></returns>
private List <GlyphModelType> GetGlyphsInstances(Matrix4x4 modelview, string s)
{
ModelMatrix charModel = new ModelMatrix(modelview);
List <GlyphModelType> glyphsInstances = new List <GlyphModelType>();
char[] fontChars = s.ToCharArray();
for (int i = 0; i < fontChars.Length; i++)
{
Glyph glyph;
if (_GlyphMetadata.TryGetValue(fontChars[i], out glyph) == false)
{
continue;
}
// Set instance information
Matrix4x4f modelViewProjection = new Matrix4x4f(
new Vertex4f(charModel.GetColumn(0)),
new Vertex4f(charModel.GetColumn(1)),
new Vertex4f(charModel.GetColumn(2)),
new Vertex4f(charModel.GetColumn(3))
);
Vertex3f glyphVertexParams = new Vertex3f(
glyph.GlyphSize.Width, glyph.GlyphSize.Height,
glyph.Layer
);
Vertex2f glyphTexParams = new Vertex2f(
glyph.TexScale.Width, glyph.TexScale.Height
);
GlyphModelType glyphModel = new GlyphModelType();
glyphModel.ModelViewProjection = modelViewProjection;
glyphModel.VertexParams = glyphVertexParams;
glyphModel.TexParams = glyphTexParams;
glyphsInstances.Add(glyphModel);
// Move next
charModel.Translate(glyph.GlyphSize.Width, 0.0f);
}
return(glyphsInstances);
}
private void Loop()
{
//if (FrameTracker.frameCount % 1000 == 0 && FrameTracker.frameCount != 0)
//{
// StaticLogger.Logger.Debug("Regenerating.");
// RegenerateGlControl();
//}
if (this.configuration.WorkflowMode == UrielWorkflowMode.EditorMode)
{
CreateNewShaderAndSelect();
this.CurrentShader = LoadNewShaderFromSelection(this.CurrentShader);
}
this.FrameTracker.StartFrame();
double time = (DateTime.UtcNow - StartTime).TotalSeconds;
if (this.CurrentShader.CreationArguments.Type.Uniforms.Contains(KnownFragmentShaderUniform.CursorPosition) ||
this.CurrentShader.CreationArguments.Type.Uniforms.Contains(KnownFragmentShaderUniform.CursorMovement))
{
UpdateKeys();
}
Vertex2f resolution = new Vertex2f(this.Size.Width, this.Size.Height);
UniformValues uniforms = new UniformValues()
{
Resolution = resolution,
Time = time,
CursorMovement = this.tks.Movement,
CursorPosition = this.tks.Position
};
renderLoop.Render(this.CurrentShader, uniforms, this.RenderControl.Size);
this.FrameTracker.EndFrame();
if (this.configuration.WorkflowMode == UrielWorkflowMode.EditorMode)
{
StatusStrip_Update(time);
}
}
/*
* v: vertex
* vt: UV texture Coordinates
* vn: Normal vector
* f: 연관이 있는 v, vt, vn에 대한 index 조합
* (f position/texture-coordinates/normal position/texture-coordinates/normal position/texture-coordinates/normal)
*/
static void ProcessVertex(string[] vertexData
, List <int> indexList
, List <Vertex2f> uvList
, List <Vertex3f> normalList
, float[] uvArray
, float[] normalArray)
{
int i = int.Parse(vertexData[0]) - 1; //position
indexList.Add(i);
Vertex2f uv = uvList[int.Parse(vertexData[1]) - 1]; //texture-coordinates
uvArray[i * 2] = uv.x;
uvArray[i * 2 + 1] = 1 - uv.y;
Vertex3f normal = normalList[int.Parse(vertexData[2]) - 1]; //normal
normalArray[i * 3] = normal.x;
normalArray[i * 3 + 1] = normal.y;
normalArray[i * 3 + 2] = normal.z;
}
void IShaderUniformContainer.SetUniform(GraphicsContext ctx, string uniformName, Vertex2f v)
{
SetUniform(uniformName, v);
}
public void LoadAtlasInfo(int numberOfRows, Vertex2f offset)
{
base.LoadInt(this.location_numberOfRows, numberOfRows);
base.LoadVector2(this.location_offset, offset);
}
private void DrawLines2f_GL_1_0(Vertex2f[] vertices)
{
if ((vertices.Length % 2) != 0)
throw new ArgumentException("length not a multiple of 2", "vertices");
Gl.Begin(PrimitiveType.Lines);
for (int i = 0; i < vertices.Length; i += 2) {
Vertex2f v1 = vertices[i], v2 = vertices[i + 1];
Gl.Vertex2(v1.x, v1.y);
Gl.Vertex2(v2.x, v2.y);
}
Gl.End();
}
protected TexGenBase(float xRepeat, float yRepeat)
{
Repeat = new Vertex2f(xRepeat, yRepeat);
}
/// <summary>
/// Construct a FontFxShadow specifying the shadow color and offset.
/// </summary>
/// <param name="color">
/// The <see cref="ColorRGBAF"/> that specifies the shadow color.
/// </param>
/// <param name="offset">
/// The <see cref="Vertex2f"/> that specifies the shadow offset.
/// </param>
public FontFxShadow(ColorRGBAF color, Vertex2f offset)
{
Color = color;
Offset = offset;
}
/// <summary>
/// Accumulate a scaling to this model matrix.
/// </summary>
/// <param name="s">
/// A <see cref="Vertex2f"/> holding the scaling factors on three dimensions.
/// </param>
public void Scale(Vertex2f s)
{
ModelMatrix scaleModel = new ModelMatrix();
scaleModel.SetScale(s.x, s.y);
Set(this * scaleModel);
}
protected void LoadVector2(int location, Vertex2f value)
{
Gl.Uniform2f(location, 1, value);
}
private void DrawLines2f_GL_1_1(Vertex2f[] vertices)
{
if ((vertices.Length % 2) != 0)
throw new ArgumentException("length not a multiple of 2", "vertices");
using (MemoryLock memoryLock = new MemoryLock(vertices)) {
// Setup arrays
Gl.VertexPointer(2, VertexPointerType.Float, 0, memoryLock.Address);
Gl.EnableClientState(EnableCap.VertexArray);
// Draw arrays
Gl.DrawArrays(PrimitiveType.Lines, 0, vertices.Length);
}
}
public static RawModel loadObjModel(String filename, Loader loader)
{
StreamReader fr = null;
try
{
fr = new StreamReader(File.OpenRead("..\\..\\res/" + filename + ".obj"));
}catch (FileNotFoundException e)
{
Console.WriteLine("Couldn't load file!");
}
string line;
List <Vertex3f> vertices = new List <Vertex3f>();
List <Vertex2f> textures = new List <Vertex2f>();
List <Vertex3f> normals = new List <Vertex3f>();
List <uint> indices = new List <uint>();
float[] verticesArray = null;
float[] normalsArray = null;
float[] textureArray = null;
uint[] indicesArray = null;
try
{
while (true)
{
line = fr.ReadLine();
string[] currentLine = line.Split(' ');
if (line.StartsWith("v "))
{
Vertex3f vertex = new Vertex3f(float.Parse(currentLine[1]), float.Parse(currentLine[2]), float.Parse(currentLine[3]));
vertices.Add(vertex);
}
else if (line.StartsWith("vt "))
{
Vertex2f texture = new Vertex2f(float.Parse(currentLine[1]), float.Parse(currentLine[2]));
textures.Add(texture);
}
else if (line.StartsWith("vn "))
{
Vertex3f normal = new Vertex3f(float.Parse(currentLine[1]), float.Parse(currentLine[2]), float.Parse(currentLine[3]));
normals.Add(normal);
}
else if (line.StartsWith("f "))
{
textureArray = new float[vertices.Count * 2];
normalsArray = new float[vertices.Count * 3];
break;
}
}
while (line != null)
{
if (!line.StartsWith("f "))
{
line = fr.ReadLine();
continue;
}
string[] currentLine = line.Split(' ');
string[] vertex1 = currentLine[1].Split('/');
string[] vertex2 = currentLine[2].Split('/');
string[] vertex3 = currentLine[3].Split('/');
processVertex(ref vertex1, ref indices, ref textures, ref normals, ref textureArray, ref normalsArray);
processVertex(ref vertex2, ref indices, ref textures, ref normals, ref textureArray, ref normalsArray);
processVertex(ref vertex3, ref indices, ref textures, ref normals, ref textureArray, ref normalsArray);
line = fr.ReadLine();
}
fr.Close();
}catch (Exception e)
{
Console.WriteLine(e.ToString());
}
verticesArray = new float[vertices.Count * 3];
indicesArray = new uint[indices.Count];
int vertexPointer = 0;
foreach (Vertex3f vertex in vertices)
{
verticesArray[vertexPointer++] = vertex.x;
verticesArray[vertexPointer++] = vertex.y;
verticesArray[vertexPointer++] = vertex.z;
}
for (int i = 0; i < indices.Count; i++)
{
indicesArray[i] = indices[i];
}
return(loader.LoadToVao(verticesArray, textureArray, normalsArray, indicesArray));
}
/// <summary>
///
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
public ViewportState(float width, float height)
{
ViewportSize = new Vertex2f(width, height);
}
/// <summary>
/// Merge this state with another one.
/// </summary>
/// <param name="state">
/// A <see cref="IGraphicsState"/> having the same <see cref="GraphicsState.StateIdentifier"/> of this state.
/// </param>
/// <remarks>
/// <para>
/// After a call to this routine, this IGraphicsState store the union of the previous information
/// and of the information of <paramref name="state"/>.
/// </para>
/// <para>
/// The semantic of the merge result is dependent on the actual implementation of this IGraphicsState. Normally
/// the merge method will copy <paramref name="state"/> into this IGraphicsState, but other state could do
/// different operations.
/// </para>
/// </remarks>
public override void Merge(IGraphicsState state)
{
if (state == null)
throw new ArgumentNullException("state");
if (state.StateIdentifier != StateId)
throw new ArgumentException("state id mismatch", "state");
ViewportState previousState = (ViewportState)state;
ViewportSize = previousState.ViewportSize;
}
/// <summary>
/// Apply this depth test render state.
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> which has defined the shader program <paramref name="shaderProgram"/>.
/// </param>
/// <param name="shaderProgram">
/// The <see cref="ShaderProgram"/> which has the state set.
/// </param>
public override void ApplyState(GraphicsContext ctx, ShaderProgram shaderProgram)
{
int[] viewportCoords = new int[4];
// Get current viewport
Gl.Get(GetPName.Viewport, viewportCoords);
ViewportSize = new Vertex2f(viewportCoords[2] - viewportCoords[0], viewportCoords[3] - viewportCoords[1]);
// Base implementation
base.ApplyState(ctx, shaderProgram);
}
private void VisionControl_Render(object sender, OpenGL.GlControlEventArgs e)
{
#region Draw Basic Picture
// Update image input
_Framebuffer.BindDraw(_GraphicsContext);
Gl.Viewport(0, 0, (int)_Framebuffer.Width, (int)_Framebuffer.Height);
_Framebuffer.Clear(_GraphicsContext, ClearBufferMask.ColorBufferBit);
{ // Draw a quad
Matrix4x4f quadProj = Matrix4x4f.Ortho2D(-1.0f, +1.0f, -1.0f, +1.0f);
Matrix4x4f quadModel = new Matrix4x4f();
_Angle += 1.0f;
quadModel.RotateZ(10.0f * (float)Math.Cos(Angle.ToRadians(_Angle)));
_GraphicsContext.Bind(_ProgramStd);
_ProgramStd.SetUniform(_GraphicsContext, "glo_ModelViewProjection", quadProj * quadModel);
_ProgramStd.SetUniform(_GraphicsContext, "glo_UniformColor", Vertex4f.One);
_ArraysQuad.Draw(_GraphicsContext, _ProgramStd);
}
_Framebuffer.UnbindDraw(_GraphicsContext);
#endregion
#region Track Corners
// Read back image input pixels
using (OpenGL.Objects.Image imageInput = _FramebufferTexture.Get(_GraphicsContext, PixelLayout.RGB24, 0)) {
// Copy the input RGB frame from OpenGL to OpenVX
Rectangle cv_rgb_image_region = new Rectangle();
cv_rgb_image_region.StartX = 0;
cv_rgb_image_region.StartY = 0;
cv_rgb_image_region.EndX = imageInput.Width;
cv_rgb_image_region.EndY = imageInput.Height;
ImagePatchAddressing cv_rgb_image_layout = new ImagePatchAddressing();
cv_rgb_image_layout.StrideX = 3;
cv_rgb_image_layout.StrideY = (int)imageInput.Stride;
VX.CopyImagePatch(_ImageInput, ref cv_rgb_image_region, 0, ref cv_rgb_image_layout, imageInput.ImageBuffer, Accessor.WriteOnly, MemoryType.Host);
}
// Now that input RGB image is ready, just run a graph.
// Run Harris at the beginning to initialize the previous keypoints,
// on other frames run the tracking graph.
VX.ProcessGraph(_DetectCorners ? _GraphHarris : _GraphTrack);
_DetectCorners = false;
#endregion
#region Store Markers on GPU
// To mark the keypoints in display, you need to access the output
// keypoint array and draw each item on the output window using gui.DrawArrow().
UIntPtr num_corners = UIntPtr.Zero;
uint num_tracking = 0;
_KeypointsPrevious = VX.GetReferenceFromDelay(_KeypointsDelay, -1);
_KeypointsCurrent = VX.GetReferenceFromDelay(_KeypointsDelay, 0);
VX.Query(_KeypointsPrevious, ArrayAttribute.Numitems, out num_corners);
if (num_corners.ToUInt64() > 0)
{
UIntPtr kp_old_stride = UIntPtr.Zero, kp_new_stride = UIntPtr.Zero;
MapId kp_old_map = new MapId(), kp_new_map = new MapId();
IntPtr kp_old_buf, kp_new_buf;
VX.MapArrayRange(_KeypointsPrevious, (UIntPtr)0, num_corners, ref kp_old_map, ref kp_old_stride, out kp_old_buf, Accessor.ReadOnly, MemoryType.Host, 0);
VX.MapArrayRange(_KeypointsCurrent, (UIntPtr)0, num_corners, ref kp_new_map, ref kp_new_stride, out kp_new_buf, Accessor.ReadOnly, MemoryType.Host, 0);
_BufferOpticalMarkers.Map(_GraphicsContext, BufferAccess.WriteOnly);
for (uint i = 0; i < num_corners.ToUInt64(); i++)
{
KeyPoint kp_old = VX.ArrayItem <KeyPoint>(kp_old_buf, i, kp_old_stride);
KeyPoint kp_new = VX.ArrayItem <KeyPoint>(kp_new_buf, i, kp_new_stride);
if (kp_new.TrackingStatus != 0)
{
Vertex2f vOld = new Vertex2f(kp_old.X / 1024.0f, kp_old.Y / 1024.0f);
Vertex2f vNew = new Vertex2f(kp_new.X / 1024.0f, kp_new.Y / 1024.0f);
_BufferOpticalMarkers.SetElement(vOld, (num_tracking * 2) + 0, 0);
_BufferOpticalMarkers.SetElement(vNew, (num_tracking * 2) + 1, 0);
num_tracking++;
}
}
_BufferOpticalMarkers.Unmap(_GraphicsContext);
VX.UnmapArrayRange(_KeypointsPrevious, kp_old_map);
VX.UnmapArrayRange(_KeypointsCurrent, kp_new_map);
}
#endregion
Gl.Viewport(0, 0, VisionControl.Width, VisionControl.Height);
Gl.ClearColor(1.0f, 0.0f, 0.0f, 0.0f);
Gl.Clear(ClearBufferMask.ColorBufferBit);
#region Draw Input Image
_GraphicsContext.Bind(_ProgramStdTex);
_ProgramStdTex.SetUniform(_GraphicsContext, "glo_ModelViewProjection", Matrix4x4f.Ortho2D(0.0f, 1.0f, 0.0f, 1.0f));
_ProgramStdTex.SetUniform(_GraphicsContext, "glo_Texture", _FramebufferTexture);
_ArraysPostQuad.Draw(_GraphicsContext, _ProgramStdTex);
#endregion
#region Draw Markers
if (num_tracking > 0)
{
_GraphicsContext.Bind(_ProgramStd);
_ProgramStd.SetUniform(_GraphicsContext, "glo_ModelViewProjection", Matrix4x4f.Ortho2D(0.0f, 1.0f, 0.0f, 1.0f));
_ProgramStd.SetUniform(_GraphicsContext, "glo_UniformColor", new Vertex4f(1.0f, 0.0f, 0.0f, 1.0f));
_ArraysOpticalMarkers.Draw(_GraphicsContext, _ProgramStd, 0, 0, num_tracking * 2);
}
#endregion
// Increase the age of the delay objects to make the current entry become previous entry
VX.AgeDelay(_PyramidDelay);
VX.AgeDelay(_KeypointsDelay);
}
public void Draw()
{
Vertex2f[] vertices = new Vertex2f[] {
new Vertex2f(0.0f, 0.0f),
new Vertex2f(1.0f, 0.0f),
new Vertex2f(1.0f, 1.0f),
new Vertex2f(0.0f, 1.0f),
};
using (VertexArrayObject vao = new VertexArrayObject()) {
// Setup ABO (Position)
ArrayBufferObject abo = new ArrayBufferObject(VertexBaseType.Float, 2, BufferObjectHint.StaticCpuDraw);
abo.Create(vertices);
// Setup VAO
vao.SetArray(abo, VertexArraySemantic.Position);
vao.SetElementArray(PrimitiveType.TriangleStrip);
vao.Create(_Context);
using (State.GraphicsStateSet currentState = State.GraphicsStateSet.GetDefaultSet()) {
// Set transform state
State.TransformStateBase stateTransform = (State.TransformStateBase)currentState[State.TransformStateBase.StateId];
// Set normalized orthogonal projection
stateTransform.LocalProjection = new OrthoProjectionMatrix(0.0f, 1.0f, 0.0f, 1.0f);
// Apply state
currentState.Apply(_Context);
// Draw
Assert.DoesNotThrow(delegate () { vao.Draw(_Context); });
}
}
}
/// <summary>
/// Set uniform state variable (variant type variable).
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> used for operations.
/// </param>
/// <param name="uniformName">
/// A <see cref="String"/> that specify the variable name in the shader source.
/// </param>
/// <param name="v">
/// A <see cref="Vertex2f"/> holding the uniform variabile data.
/// </param>
public void SetVariantUniform(GraphicsContext ctx, string uniformName, Vertex2f v)
{
SetVariantUniform(ctx, uniformName, v.x, v.y);
}
/// <summary>
/// Set uniform state variable (variant type variable).
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> used for operations.
/// </param>
/// <param name="uniformName">
/// A <see cref="String"/> that specify the variable name in the shader source.
/// </param>
/// <param name="v">
/// A <see cref="Vertex2f"/> holding the uniform variabile data.
/// </param>
public void SetVariantUniform(GraphicsContext ctx, string uniformName, Vertex2f v)
{
SetVariantUniform(ctx, uniformName, v.x, v.y);
}
/// <summary>
/// Accumulate a translation on this ModelMatrix.
/// </summary>
/// <param name="p">
/// A <see cref="Vertex2f"/> that specifies the translation.
/// </param>
public void Translate(Vertex2f p)
{
ModelMatrix translationMatrix = new ModelMatrix();
translationMatrix[3, 0] = p.x;
translationMatrix[3, 1] = p.y;
Set(this * translationMatrix);
}
/// <summary>
///
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
public ViewportState(float width, float height)
{
ViewportSize = new Vertex2f(width, height);
}
/// <summary>
/// Scale this ModelMatrix.
/// </summary>
/// <param name="s">
/// A <see cref="Vertex2f"/> holding the scaling factors on two dimensions.
/// </param>
public void SetScale(Vertex2f s)
{
SetScale(s.x, s.y, 1.0f);
}
/// <summary>
/// Construct a FontFxShadow specifying the shadow offset.
/// </summary>
/// <param name="offset">
/// The <see cref="Vertex2f"/> that specifies the shadow offset.
/// </param>
public FontFxShadow(Vertex2f offset)
{
Offset = offset;
}
public GUITexture(uint textureId, Vertex2f position, Vertex2f scale)
{
textureID = textureId;
this.position = position;
this.scale = scale;
}
private void DrawLines2f_GL_3_2(Vertex2f[] vertices)
{
// Define geometry buffer
_DrawArrayBuffer.Create(this, vertices);
// Define geometry arrays
_VertexArray.SetArray(_DrawArrayBuffer, VertexArraySemantic.Position);
// Draw arrays
_VertexArray.Draw(this, null);
}
private void GenerateTangentsTriangleStrip3f(IVertexArray positionArray, IVertexArray normalArray, IVertexArray texArray, IVertexArray tanArray, IVertexArray bitanArray)
{
uint count = ElementCount != 0 ? ElementCount : ArrayIndices.ItemCount;
uint i0, i1, i2;
Vertex3f v0, v1, v2;
Vertex2f t0, t1, t2;
i0 = ArrayIndices.GetIndex(ElementOffset);
i1 = ArrayIndices.GetIndex(ElementOffset + 1);
v0 = positionArray.GetElement <Vertex3f>(i0);
v1 = positionArray.GetElement <Vertex3f>(i1);
t0 = texArray.GetElement <Vertex2f>(i0);
t1 = texArray.GetElement <Vertex2f>(i1);
for (uint i = 0, v = ElementOffset + 2; i < count - 2; i++, v++)
{
// Next triangle
i2 = ArrayIndices.GetIndex(v);
v2 = positionArray.GetElement <Vertex3f>(i2);
t2 = texArray.GetElement <Vertex2f>(i2);
// Compute tangent & bitangent
Vertex3f dv1 = v1 - v0, dv2 = v2 - v0;
Vertex2f dt1 = t1 - t0, dt2 = t2 - t0;
float w = 1.0f / (dt1.x * dt2.y - dt1.y * dt2.x);
Vertex3f tgVector, btVector;
if (Single.IsInfinity(w) == false)
{
tgVector = (dv1 * dt2.y - dv2 * dt1.y) * w;
tgVector.Normalize();
btVector = (dv2 * dt1.x - dv1 * dt2.x) * w;
btVector.Normalize();
//Vertex3f n = normalArray.GetElement<Vertex3f>(i2);
//n.Normalize();
//if (((n ^ tgVector) * btVector) < 0.0f)
// tgVector = tgVector * -1.0f;
}
else
{
// Degenerate triangles does not contribute
tgVector = btVector = Vertex3f.Zero;
}
// Store (accumulate adjacent triangles)
Vertex3f tg0 = tanArray.GetElement <Vertex3f>(i0) + tgVector;
Vertex3f tg1 = tanArray.GetElement <Vertex3f>(i1) + tgVector;
Vertex3f tg2 = tanArray.GetElement <Vertex3f>(i2) + tgVector;
tanArray.SetElement <Vertex3f>(tg0, i0);
tanArray.SetElement <Vertex3f>(tg1, i1);
tanArray.SetElement <Vertex3f>(tg2, i2);
Vertex3f bt0 = bitanArray.GetElement <Vertex3f>(i0) + btVector;
Vertex3f bt1 = bitanArray.GetElement <Vertex3f>(i1) + btVector;
Vertex3f bt2 = bitanArray.GetElement <Vertex3f>(i2) + btVector;
bitanArray.SetElement <Vertex3f>(bt0, i0);
bitanArray.SetElement <Vertex3f>(bt1, i1);
bitanArray.SetElement <Vertex3f>(bt2, i2);
// Prepare for next triangle
i0 = i1;
i1 = i2;
}
}
/// <summary>
///
/// </summary>
/// <param name="graphicsSurface"></param>
public ViewportState(GraphicsSurface graphicsSurface)
{
if (graphicsSurface == null)
throw new ArgumentNullException("graphicsSurface");
ViewportSize = new Vertex2f(graphicsSurface.Width, graphicsSurface.Height);
}
public VertexArrays CreateArrays(ObjContext objContext)
{
if (objContext == null)
{
throw new ArgumentNullException("objContext");
}
VertexArrays vertexArray = new VertexArrays();
List <ObjFaceCoord> coords = new List <ObjFaceCoord>();
bool hasTexCoord = Material.DiffuseTexture != null;
bool hasNormals = false;
bool hasTanCoord = hasTexCoord && Material.NormalTexture != null;
foreach (ObjFace f in Faces)
{
hasTexCoord |= f.HasTexCoord;
hasNormals |= f.HasNormal;
coords.AddRange(f.Triangulate());
}
uint vertexCount = (uint)coords.Count;
Vertex4f[] position = new Vertex4f[vertexCount];
Vertex3f[] normal = hasNormals ? new Vertex3f[vertexCount] : null;
Vertex2f[] texcoord = new Vertex2f[vertexCount];
for (int i = 0; i < position.Length; i++)
{
Debug.Assert(coords[i].VertexIndex < objContext.Vertices.Count);
position[i] = objContext.Vertices[coords[i].VertexIndex];
if (hasTexCoord)
{
Debug.Assert(coords[i].TexCoordIndex < objContext.TextureCoords.Count);
texcoord[i] = objContext.TextureCoords[coords[i].TexCoordIndex];
}
if (hasNormals)
{
Debug.Assert(coords[i].NormalIndex < objContext.Normals.Count);
normal[i] = objContext.Normals[coords[i].NormalIndex];
}
}
// Position (mandatory)
ArrayBuffer <Vertex4f> positionBuffer = new ArrayBuffer <Vertex4f>();
positionBuffer.Create(position);
vertexArray.SetArray(positionBuffer, VertexArraySemantic.Position);
// Layout (triangles)
vertexArray.SetElementArray(PrimitiveType.Triangles);
// Texture
if (hasTexCoord)
{
ArrayBuffer <Vertex2f> texCoordBuffer = new ArrayBuffer <Vertex2f>();
texCoordBuffer.Create(texcoord);
vertexArray.SetArray(texCoordBuffer, VertexArraySemantic.TexCoord);
}
// Normals
if (hasNormals)
{
ArrayBuffer <Vertex3f> normalBuffer = new ArrayBuffer <Vertex3f>();
normalBuffer.Create(normal);
vertexArray.SetArray(normalBuffer, VertexArraySemantic.Normal);
}
else
{
ArrayBuffer <Vertex3f> normalBuffer = new ArrayBuffer <Vertex3f>();
normalBuffer.Create(vertexCount);
vertexArray.SetArray(normalBuffer, VertexArraySemantic.Normal);
// XXX vertexArray.GenerateNormals();
}
// Tangents
if (hasTanCoord)
{
ArrayBuffer <Vertex3f> tanCoordBuffer = new ArrayBuffer <Vertex3f>();
tanCoordBuffer.Create(vertexCount);
vertexArray.SetArray(tanCoordBuffer, VertexArraySemantic.Tangent);
ArrayBuffer <Vertex3f> bitanCoordBuffer = new ArrayBuffer <Vertex3f>();
bitanCoordBuffer.Create(vertexCount);
vertexArray.SetArray(bitanCoordBuffer, VertexArraySemantic.Bitangent);
// XXX vertexArray.GenerateTangents();
}
return(vertexArray);
}
/// <summary>
/// Draw a character sequence (base method).
/// </summary>
/// <param name="ctx">
/// The <see cref="GraphicsContext"/> used for drawing.
/// </param>
/// <param name="modelview">
/// The <see cref="Matrix4x4"/> the model-view-projection matrix for the first character of <paramref name="s"/>.
/// </param>
/// <param name="color">
/// The <see cref="ColorRGBAF"/> that specifies the glyph color.
/// </param>
/// <param name="s">
/// A <see cref="String"/> that specifies the characters for be drawn.
/// </param>
private void DrawStringCore(GraphicsContext ctx, Matrix4x4 modelview, TextureArray2d texture, ColorRGBAF color, string s)
{
ModelMatrix charModel = new ModelMatrix(modelview);
ctx.Bind(_FontProgram);
// Set uniforms
_FontProgram.SetUniform(ctx, "glo_UniformColor", color);
_FontProgram.SetUniform(ctx, "glo_FontGlyph", texture);
// Set instances
char[] fontChars = s.ToCharArray();
uint instances = 0;
_GlyphInstances.Map(ctx, BufferAccessARB.WriteOnly);
try {
for (int i = 0; i < fontChars.Length; i++)
{
Glyph glyph;
if (_GlyphMetadata.TryGetValue(fontChars[i], out glyph) == false)
{
continue;
}
// Set instance information
Matrix4x4f modelViewProjection = new Matrix4x4f(
new Vertex4f(charModel.GetColumn(0)),
new Vertex4f(charModel.GetColumn(1)),
new Vertex4f(charModel.GetColumn(2)),
new Vertex4f(charModel.GetColumn(3))
);
Vertex3f glyphVertexParams = new Vertex3f(
glyph.GlyphSize.Width, glyph.GlyphSize.Height,
glyph.Layer
);
Vertex2f glyphTexParams = new Vertex2f(
glyph.TexScale.Width, glyph.TexScale.Height
);
_GlyphInstances.SetElement(modelViewProjection, instances, 0);
_GlyphInstances.SetElement(glyphVertexParams, instances, 1);
_GlyphInstances.SetElement(glyphTexParams, instances, 2);
// Count the instance
instances++;
// Move next
charModel.Translate(glyph.GlyphSize.Width, 0.0f);
}
} finally {
_GlyphInstances.Unmap(ctx);
}
// Rasterize it
using (State.BlendState stateBlend = State.BlendState.AlphaBlending) {
stateBlend.ApplyState(ctx, _FontProgram);
_VertexArrays.DrawInstanced(ctx, _FontProgram, instances);
}
}