private void RenderControl_Render_ES(object sender, GlControlEventArgs e)
{
Control control = (Control)sender;
OrthoProjectionMatrix projectionMatrix = new OrthoProjectionMatrix(0.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f);
ModelMatrix modelMatrix = new ModelMatrix();
// Animate triangle
modelMatrix.RotateZ(_Angle);
Gl.Viewport(0, 0, control.Width, control.Height);
Gl.Clear(ClearBufferMask.ColorBufferBit);
Gl.UseProgram(_Es2_Program);
using (MemoryLock arrayPosition = new MemoryLock(_ArrayPosition))
using (MemoryLock arrayColor = new MemoryLock(_ArrayColor))
{
Gl.VertexAttribPointer((uint)_Es2_Program_Location_aPosition, 2, VertexAttribType.Float, false, 0, arrayPosition.Address);
Gl.EnableVertexAttribArray((uint)_Es2_Program_Location_aPosition);
Gl.VertexAttribPointer((uint)_Es2_Program_Location_aColor, 3, VertexAttribType.Float, false, 0, arrayColor.Address);
Gl.EnableVertexAttribArray((uint)_Es2_Program_Location_aColor);
Gl.UniformMatrix4(_Es2_Program_Location_uMVP, false, (projectionMatrix * modelMatrix).ToArray());
Gl.DrawArrays(PrimitiveType.Triangles, 0, 3);
}
}
private float[] calcMVP(float w, float h)
{
OrthoProjectionMatrix projectionMatrix = new OrthoProjectionMatrix(0.0f, w, 0.0f, h, 0.0f, 1000000.0f);
ModelMatrix modelMatrix = new ModelMatrix();
return((projectionMatrix * modelMatrix).ToArray());
}
public void TestGetFrustumLeftPlane()
{
ProjectionMatrix projectionMatrix;
ModelMatrix modelMatrix;
Matrix4x4 mvp;
Plane plane;
// Orthographic projection
projectionMatrix = new OrthoProjectionMatrix(-2.0f, +2.0f, -2.0f, +2.0f);
plane = Plane.GetFrustumLeftPlane(projectionMatrix);
Assert.AreEqual(Vertex3f.UnitX, plane.Normal);
Assert.AreEqual(-2.0f, plane.Distance);
// Rotate by 90 deg on Y axis
modelMatrix = new ModelMatrix();
modelMatrix.RotateY(90.0f);
mvp = projectionMatrix * modelMatrix;
plane = Plane.GetFrustumLeftPlane(mvp);
Assert.AreEqual(Vertex3f.UnitZ, plane.Normal);
Assert.AreEqual(-2.0f, plane.Distance);
// Rotate by 180 deg on Y axis
modelMatrix = new ModelMatrix();
modelMatrix.RotateY(180.0f);
mvp = projectionMatrix * modelMatrix;
plane = Plane.GetFrustumLeftPlane(mvp);
Assert.AreEqual(-Vertex3f.UnitX, plane.Normal);
Assert.AreEqual(-2.0f, plane.Distance);
}
public void TestGetFrustumFarPlane()
{
ProjectionMatrix projectionMatrix;
Plane plane;
// Orthographic projection
projectionMatrix = new OrthoProjectionMatrix(-2.0f, +2.0f, -2.0f, +2.0f, -2.0f, +2.0f);
plane = Plane.GetFrustumFarPlane(projectionMatrix);
Assert.AreEqual(Vertex3f.UnitZ, plane.Normal);
Assert.AreEqual(-2.0f, plane.Distance);
}
public void MatrixMul2()
{
ProjectionMatrix proj = new OrthoProjectionMatrix(-1.0f, 0.5f, 0.0f, 1.0f, 0.1f, 3.0f);
ModelMatrix model = new ModelMatrix();
model.Translate(2.0f, -4.0f, 1.125f);
model.RotateX(30.0f);
Matrix r1 = proj * model;
Matrix m = new Matrix(proj.ToArray(), 4, 4), n = new Matrix(model.ToArray(), 4, 4);
Matrix r2 = m * n;
}
public void LocalProjection()
{
using (T transformState = Activator.CreateInstance <T>()) {
IMatrix4x4 projectionMatrix;
// By default, LocalProjection is null
Assert.IsNull(transformState.LocalProjection);
// Allow to set custom projections
projectionMatrix = new OrthoProjectionMatrix();
Assert.DoesNotThrow(delegate() { transformState.LocalProjection = (IProjectionMatrix)projectionMatrix; });
// LocalProjection reference another clone
Assert.IsNotNull(transformState.LocalProjection);
Assert.AreNotSame(projectionMatrix, transformState.LocalProjection);
// Allow to reset projection
Assert.DoesNotThrow(delegate() { transformState.LocalProjection = null; });
Assert.IsNull(transformState.LocalProjection);
}
}
private void Es2_Render()
{
OrthoProjectionMatrix projectionMatrix = new OrthoProjectionMatrix(0.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f);
Gl.UseProgram(_Es2_Program);
using (MemoryLock arrayPosition = new MemoryLock(_ArrayPosition))
using (MemoryLock arrayColor = new MemoryLock(_ArrayColor))
{
Gl.VertexAttribPointer((uint)_Es2_Program_Location_aPosition, 2, VertexAttribType.Float, false, 0, arrayPosition.Address);
Gl.EnableVertexAttribArray((uint)_Es2_Program_Location_aPosition);
Gl.VertexAttribPointer((uint)_Es2_Program_Location_aColor, 3, VertexAttribType.Float, false, 0, arrayColor.Address);
Gl.EnableVertexAttribArray((uint)_Es2_Program_Location_aColor);
Gl.UniformMatrix4(_Es2_Program_Location_uMVP, false, projectionMatrix.ToArray());
Gl.DrawArrays(PrimitiveType.Triangles, 0, 3);
}
}
private void DisplayShadowMaps(GraphicsContext ctx)
{
State.ViewportState viewportState = new State.ViewportState(ctx);
OrthoProjectionMatrix orthoProjection = new OrthoProjectionMatrix(0.0f, viewportState.Width, 0.0f, viewportState.Height);
ModelMatrix model = new ModelMatrix();
// No depth test
State.DepthTestState.DefaultState.Apply(ctx, null);
ctx.Bind(_ShadowMapDebugProgram);
for (int i = 0; i < _LightManager.ShadowLights.Count; i++)
{
SceneObjectLight shadowLight = _LightManager.ShadowLights[i];
SceneObjectLightSpot shadowSpotLight = shadowLight as SceneObjectLightSpot;
if (shadowSpotLight == null)
{
continue;
}
Texture2d shadowTex = shadowSpotLight._ShadowMap;
shadowTex.SamplerParams.CompareMode = false;
ModelMatrix quadModel = new ModelMatrix(model);
quadModel.Scale(shadowTex.Width / 4, shadowTex.Height / 4);
_ShadowMapDebugProgram.SetUniform(ctx, "glo_ModelViewProjection", orthoProjection * quadModel);
_ShadowMapDebugProgram.SetUniform(ctx, "glo_NearFar", new Vertex2f(0.1f, 100.0f));
_ShadowMapDebugProgram.SetUniform(ctx, "glo_Texture", shadowTex);
_ShadowMapQuad.Draw(ctx, _ShadowMapDebugProgram);
shadowTex.SamplerParams.CompareMode = true;
// Stride right
model.Translate(shadowTex.Width, 0.0f);
}
}
private static void Draw()
{
OrthoProjectionMatrix projectionMatrix = new OrthoProjectionMatrix(0.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f);
Gl.Viewport(0, 0, 1920, 1080);
Gl.Clear(ClearBufferMask.ColorBufferBit);
Gl.UseProgram(_Es2_Program);
using (MemoryLock arrayPosition = new MemoryLock(_ArrayPosition))
using (MemoryLock arrayColor = new MemoryLock(_ArrayColor))
{
Gl.VertexAttribPointer((uint)_Es2_Program_Location_aPosition, 2, VertexAttribType.Float, false, 0, arrayPosition.Address);
Gl.EnableVertexAttribArray((uint)_Es2_Program_Location_aPosition);
Gl.VertexAttribPointer((uint)_Es2_Program_Location_aColor, 3, VertexAttribType.Float, false, 0, arrayColor.Address);
Gl.EnableVertexAttribArray((uint)_Es2_Program_Location_aColor);
Gl.UniformMatrix4(_Es2_Program_Location_uMVP, 1, false, projectionMatrix.ToArray());
Gl.DrawArrays(PrimitiveType.Triangles, 0, 3);
}
}
/// <summary>
/// Update framebuffer.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ObjectsControl_Render(object sender, GlControlEventArgs e)
{
GlControl senderControl = (GlControl)sender;
float senderAspectRatio = (float)senderControl.Width / senderControl.Height;
// Clear
Gl.Viewport(0, 0, senderControl.Width, senderControl.Height);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
_CubeScene.CurrentView.LocalModel.SetIdentity();
_CubeScene.CurrentView.LocalModel.Translate(_ViewStrideLat, _ViewStrideAlt, 0.0f);
_CubeScene.CurrentView.LocalModel.RotateY(_ViewAzimuth);
_CubeScene.CurrentView.LocalModel.RotateX(_ViewElevation);
_CubeScene.CurrentView.LocalModel.Translate(0.0f, 0.0f, _ViewLever);
_CubeScene.CurrentView.ProjectionMatrix = new PerspectiveProjectionMatrix(45.0f, senderAspectRatio, 0.5f, 10000.0f);
_CubeScene.Draw(_Context);
// Overlay
ProjectionMatrix overlayProjection = new OrthoProjectionMatrix(0.0f, ClientSize.Width, 0.0f, ClientSize.Height);
ModelMatrix overlayModel = new ModelMatrix();
overlayModel.Translate(0.375f, 0.375f);
Gl.Clear(ClearBufferMask.DepthBufferBit);
ColorRGBAF fpsColor = ColorRGBAF.ColorGreen;
int fps = senderControl.Fps;
if (fps >= 59)
{
fpsColor = ColorRGBAF.ColorGreen;
}
else if (fps >= 29)
{
fpsColor = ColorRGBAF.ColorBlue;
}
else if (fps >= 24)
{
fpsColor = ColorRGBAF.ColorYellow;
}
else
{
fpsColor = ColorRGBAF.ColorRed;
}
fontPatch.DrawString(
_Context, overlayProjection * overlayModel, fpsColor,
String.Format("FPS: {0}", senderControl.Fps)
);
overlayModel.SetIdentity();
overlayModel.Translate(0.375f, ClientSize.Height - 64 + 0.375f);
fontTitle.DrawString(
_Context, overlayProjection * overlayModel, ColorRGBAF.ColorGreen,
"Hello Objects example ~(^.^)~"
);
overlayModel.SetIdentity();
overlayModel.Translate(0.375f, ClientSize.Height - 128 + 0.375f);
fontTitleV.DrawString(_Context, overlayProjection * overlayModel, ColorRGBAF.ColorGreen,
"Hello Objects example ~(^.^)~"
);
}
/// <summary>
/// Update framebuffer.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ObjectsControl_Render(object sender, GlControlEventArgs e)
{
GlControl senderControl = (GlControl)sender;
float senderAspectRatio = (float)senderControl.Width / senderControl.Height;
KhronosApi.LogEnabled = false;
KhronosApi.LogComment("--------------------------------------------------");
KhronosApi.LogComment("*** Draw");
// Clear
Gl.Viewport(0, 0, senderControl.Width, senderControl.Height);
Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
_CubeScene.CurrentView.ProjectionMatrix = new PerspectiveProjectionMatrix(45.0f, senderAspectRatio, 0.1f, 100.0f);
_CubeScene.CurrentView.LocalModel.SetIdentity();
_CubeScene.CurrentView.LocalModel.Translate(_ViewStrideLat, _ViewStrideAlt, 0.0f);
_CubeScene.CurrentView.LocalModel.RotateY(_ViewAzimuth);
_CubeScene.CurrentView.LocalModel.RotateX(_ViewElevation);
_CubeScene.CurrentView.LocalModel.Translate(0.0f, 0.0f, _ViewLever);
_CubeScene.UpdateViewMatrix();
_CubeScene.Draw(_Context);
KhronosApi.LogEnabled = false;
return;
// Overlay
ProjectionMatrix overlayProjection = new OrthoProjectionMatrix(0.0f, ClientSize.Width, 0.0f, ClientSize.Height);
ModelMatrix overlayModel = new ModelMatrix();
overlayModel.Translate(0.375f, 0.375f);
Gl.Clear(ClearBufferMask.DepthBufferBit);
ColorRGBAF fpsColor = ColorRGBAF.ColorGreen;
int fps = (int)Math.Floor(1000.0 / senderControl.FrameSwapTime.TotalMilliseconds);
if (fps >= 59)
{
fpsColor = ColorRGBAF.ColorGreen;
}
else if (fps >= 29)
{
fpsColor = ColorRGBAF.ColorBlue;
}
else if (fps >= 24)
{
fpsColor = ColorRGBAF.ColorYellow;
}
else
{
fpsColor = ColorRGBAF.ColorRed;
}
fontPatch.DrawString(
_Context, overlayProjection * overlayModel, fpsColor,
String.Format("FPS: {0}", fps)
);
overlayModel.SetIdentity();
overlayModel.Translate(0.375f, ClientSize.Height - 64 + 0.375f);
fontTitle.DrawString(
_Context, overlayProjection * overlayModel, ColorRGBAF.ColorGreen,
"Hello Objects example ~(^.^)~"
);
overlayModel.SetIdentity();
overlayModel.Translate(0.375f, ClientSize.Height - 128 + 0.375f);
fontTitleV.DrawString(_Context, overlayProjection * overlayModel, ColorRGBAF.ColorGreen,
"Hello Objects example ~(^.^)~"
);
// Release resources
_Context.DisposeResources();
}
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
ProjectionMatrix quadProj = new OrthoProjectionMatrix(-1.0f, +1.0f, -1.0f, +1.0f);
ModelMatrix quadModel = new ModelMatrix();
_Angle += 1.0f;
quadModel.RotateZ(10.0f * Math.Cos(_Angle / 180.0 * Math.PI));
_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", new OrthoProjectionMatrix(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", new OrthoProjectionMatrix(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);
}
