public void switchTargetFrameBuffer()
{
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, FBO);
if (FBO == 0)
{
GLES20.GlViewport(0, 0, ShellViewModel.Width, ShellViewModel.Height);
}
else
{
GLES20.GlViewport(0, 0, mWidth, mHeight);
}
}
private int setupRenderTextureAndRenderbuffer(int width, int height)
{
if (mTextureId != -1)
{
GLES20.GlDeleteTextures(1, new int[] { mTextureId }, 0);
}
if (mRenderbufferId != -1)
{
GLES20.GlDeleteRenderbuffers(1, new int[] { mRenderbufferId }, 0);
}
if (mFramebufferId != -1)
{
GLES20.GlDeleteFramebuffers(1, new int[] { mFramebufferId }, 0);
}
mTextureId = createTexture(width, height);
checkGlError("setupRenderTextureAndRenderbuffer: create texture");
int[] renderbufferIds = new int[1];
GLES20.GlGenRenderbuffers(1, renderbufferIds, 0);
GLES20.GlBindRenderbuffer(36161, renderbufferIds[0]);
GLES20.GlRenderbufferStorage(36161, 33189, width, height);
mRenderbufferId = renderbufferIds[0];
checkGlError("setupRenderTextureAndRenderbuffer: create renderbuffer");
int[] framebufferIds = new int[1];
GLES20.GlGenFramebuffers(1, framebufferIds, 0);
GLES20.GlBindFramebuffer(36160, framebufferIds[0]);
mFramebufferId = framebufferIds[0];
GLES20.GlFramebufferTexture2D(36160, 36064, 3553, mTextureId, 0);
GLES20.GlFramebufferRenderbuffer(36160, 36096, 36161, renderbufferIds[0]);
int status = GLES20.GlCheckFramebufferStatus(36160);
if (status != 36053)
{
throw new Java.Lang.RuntimeException("Framebuffer is not complete: " + Java.Lang.Integer.ToHexString(status));
}
GLES20.GlBindFramebuffer(36160, 0);
return(framebufferIds[0]);
}
public void OnSurfaceCreated(IGL10 gl, EGLConfig config)
{
// GL configurations
int bonenum = 48;
GLES20.GlGetIntegerv(GLES20.GlMaxTextureSize, mTexSize, 0);
ShellViewModel.MaxBone = bonenum;
mNpot = hasExt("GL_OES_texture_npot");
// initialize
GLES20.GlClearColor(0, 0, 0, 1);
GLES20.GlEnable(GLES20.GlDepthTest);
GLES20.GlEnable(GLES20.GlBlend);
checkGlError("GlEnable");
// GLUtils.texImage2D generates premultiplied-alpha texture. so we use GL_ONE instead of GL_ALPHA
GLES20.GlBlendFunc(GL10.GlOne, GL10.GlOneMinusSrcAlpha);
GLES20.GlDepthFunc(GLES20.GlLequal);
GLES20.GlFrontFace(GLES20.GlCw);
checkGlError("GlMiscSettings");
// shader programs
mGLSL = new Dictionary <String, GLSL>();
mGLSL.Add("builtin:default",
new GLSL(String.Format(Util.ReadAssetString("shader/vs.vsh"), ShellViewModel.MaxBone),
Util.ReadAssetString("shader/fs.fsh")));
mGLSL.Add("builtin:default_alpha",
new GLSL(String.Format(Util.ReadAssetString("shader/vs.vsh"), ShellViewModel.MaxBone),
Util.ReadAssetString("shader/fs_alpha.fsh")));
mGLSL.Add("builtin:nomotion",
new GLSL(Util.ReadAssetString("shader/vs_nm.vsh"), Util.ReadAssetString("shader/fs.fsh")));
mGLSL.Add("builtin:nomotion_alpha",
new GLSL(Util.ReadAssetString("shader/vs_nm.vsh"), Util.ReadAssetString("shader/fs_alpha.fsh")));
// render targets
mRT = new Dictionary <String, RenderTarget>();
mRT.Add("screen", new RenderTarget());
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, 0);
}
public void RenderTexture(int texId)
{
try
{
// Bind default FBO
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, 0);
// Use our shader program
GLES20.GlUseProgram(MProgram);
GlToolbox.CheckGlError("glUseProgram");
// Set viewport
GLES20.GlViewport(0, 0, MViewWidth, MViewHeight);
GlToolbox.CheckGlError("glViewport");
// Disable blending
GLES20.GlDisable(GLES20.GlBlend);
// Set the vertex attributes
GLES20.GlVertexAttribPointer(MTexCoordHandle, 2, GLES20.GlFloat, false, 0, MTexVertices);
GLES20.GlEnableVertexAttribArray(MTexCoordHandle);
GLES20.GlVertexAttribPointer(MPosCoordHandle, 2, GLES20.GlFloat, false, 0, MPosVertices);
GLES20.GlEnableVertexAttribArray(MPosCoordHandle);
GlToolbox.CheckGlError("vertex attribute setup");
// Set the input texture
GLES20.GlActiveTexture(GLES20.GlTexture0);
GlToolbox.CheckGlError("glActiveTexture");
GLES20.GlBindTexture(GLES20.GlTexture2d, texId);
GlToolbox.CheckGlError("glBindTexture");
GLES20.GlUniform1i(MTexSamplerHandle, 0);
// Draw
GLES20.GlClearColor(0.0f, 0.0f, 0.0f, 1.0f);
GLES20.GlClear(GLES20.GlColorBufferBit);
GLES20.GlDrawArrays(GLES20.GlTriangleStrip, 0, 4);
}
catch (Exception e)
{
Methods.DisplayReportResultTrack(e);
}
}
/**
* Initializes FBO with given parameters. Width and height are used to
* generate textures out of which all are sized same to this FBO. If you
* give genRenderBuffer a value 'true', depth buffer will be generated also.
*
* @param width
* FBO width in pixels
* @param height
* FBO height in pixels
* @param textureCount
* Number of textures to generate
* @param genDepthBuffer
* If true, depth buffer is allocated for this FBO @ param
* genStencilBuffer If true, stencil buffer is allocated for this
* FBO
*/
public void init(int width, int height, int textureCount,
bool textureExternalOES)
{
// Just in case.
Reset();
// Store FBO size.
_width = width;
_height = height;
// Genereta FBO.
var handle = new int[] { 0 };
GLES20.GlGenFramebuffers(1, handle, 0);
_frameBufferHandle = handle[0];
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, _frameBufferHandle);
// Generate textures.
_textureHandles = new int[textureCount];
GLES20.GlGenTextures(textureCount, _textureHandles, 0);
var target = textureExternalOES ? GLES11Ext.GlTextureExternalOes
: GLES20.GlTexture2d;
foreach (var texture in _textureHandles)
{
GLES20.GlBindTexture(target, texture);
GLES20.GlTexParameteri(GLES20.GlTexture2d,
GLES20.GlTextureWrapS, GLES20.GlClampToEdge);
GLES20.GlTexParameteri(target, GLES20.GlTextureWrapT,
GLES20.GlClampToEdge);
GLES20.GlTexParameteri(target, GLES20.GlTextureMinFilter,
GLES20.GlNearest);
GLES20.GlTexParameteri(target, GLES20.GlTextureMagFilter,
GLES20.GlLinear);
if (target == GLES20.GlTexture2d)
{
GLES20.GlTexImage2D(GLES20.GlTexture2d, 0, GLES20.GlRgba,
_width, _height, 0, GLES20.GlRgba,
GLES20.GlUnsignedByte, null);
}
}
}
public void afterDrawFrame()
{
GLES20.GlBindFramebuffer(36160, mOriginalFramebufferId /*.array()[0]*/.Get(0));
GLES20.GlViewport(0, 0, mHmd.getScreen().getWidth(), mHmd.getScreen().getHeight());
GLES20.GlGetIntegerv(2978, mViewport);
GLES20.GlGetIntegerv(2884, mCullFaceEnabled);
GLES20.GlGetIntegerv(3089, mScissorTestEnabled);
GLES20.GlDisable(3089);
GLES20.GlDisable(2884);
GLES20.GlClearColor(0.0F, 0.0F, 0.0F, 1.0F);
GLES20.GlClear(16640);
GLES20.GlUseProgram(mProgramHolder.program);
GLES20.GlEnable(3089);
GLES20.GlScissor(0, 0, mHmd.getScreen().getWidth() / 2, mHmd.getScreen().getHeight());
renderDistortionMesh(mLeftEyeDistortionMesh);
GLES20.GlScissor(mHmd.getScreen().getWidth() / 2, 0, mHmd.getScreen().getWidth() / 2, mHmd.getScreen().getHeight());
renderDistortionMesh(mRightEyeDistortionMesh);
GLES20.GlDisableVertexAttribArray(mProgramHolder.aPosition);
GLES20.GlDisableVertexAttribArray(mProgramHolder.aVignette);
GLES20.GlDisableVertexAttribArray(mProgramHolder.aTextureCoord);
GLES20.GlUseProgram(0);
GLES20.GlBindBuffer(34962, 0);
GLES20.GlBindBuffer(34963, 0);
GLES20.GlDisable(3089);
if (mCullFaceEnabled /*.array()[0]*/.Get(0) == 1)
{
GLES20.GlEnable(2884);
}
if (mScissorTestEnabled /*.array()[0]*/.Get(0) == 1)
{
GLES20.GlEnable(3089);
}
GLES20.GlViewport(mViewport /*.array()[0]*/.Get(0), mViewport /*.array()[1]*/.Get(1), mViewport /*.array()[2]*/.Get(2), mViewport /*.array()[3]*/.Get(3));
}
private void create(int width, int height)
{
// FBO
int[] ret = new int[1];
// frame buffer
GLES20.GlGenFramebuffers(1, ret, 0);
FBO = ret[0];
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, FBO);
// depth buffer
GLES20.GlGenRenderbuffers(1, ret, 0);
RBOD = ret[0];
GLES20.GlBindRenderbuffer(GLES20.GlFramebuffer, RBOD);
GLES20.GlRenderbufferStorage(GLES20.GlRenderbuffer, GLES20.GlDepthComponent16, width, height);
GLES20.GlFramebufferRenderbuffer(GLES20.GlFramebuffer, GLES20.GlDepthAttachment, GLES20.GlRenderbuffer, RBOD);
// color buffer (is texture)
GLES20.GlPixelStorei(GLES20.GlUnpackAlignment, 1);
GLES20.GlGenTextures(1, ret, 0);
RBOC = ret[0];
GLES20.GlBindTexture(GLES20.GlTexture2d, RBOC);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureWrapS, GLES20.GlClampToEdge);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureWrapT, GLES20.GlClampToEdge);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureMagFilter, GLES20.GlLinear);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureMinFilter, GLES20.GlLinear);
GLES20.GlTexImage2D(GLES20.GlTexture2d, 0, GLES20.GlRgba, width, height, 0, GLES20.GlRgba, GLES20.GlUnsignedByte, null);
GLES20.GlFramebufferTexture2D(GLES20.GlFramebuffer, GLES20.GlColorAttachment0, GLES20.GlTexture2d, RBOC, 0);
if (GLES20.GlCheckFramebufferStatus(GLES20.GlFramebuffer) != GLES20.GlFramebufferComplete)
{
Log.Debug(TAG, "Fail to create FBO.");
FBO = 0;
RBOD = 0;
RBOC = 0;
}
}
public void OnDrawFrame(IGL10 unused)
{
// Clear view.
GLES20.GlClearColor(0.5f, 0.5f, 0.5f, 1.0f);
GLES20.GlClear(GLES20.GlColorBufferBit);
// If we have new preview texture.
if (_surfaceTextureUpdate)
{
// Update surface texture.
_surfaceTexture.UpdateTexImage();
// Update texture transform matrix.
_surfaceTexture.GetTransformMatrix(_transformM);
_surfaceTextureUpdate = false;
// Bind offscreen texture into use.
_fboOffscreen.Bind();
_fboOffscreen.BindTexture(0);
// Take copy shader into use.
_shaderCopyOes.UseProgram();
// Uniform variables.
var uOrientationM = _shaderCopyOes.GetHandle("uOrientationM");
var uTransformM = _shaderCopyOes.GetHandle("uTransformM");
// We're about to transform external texture here already.
GLES20.GlUniformMatrix4fv(uOrientationM, 1, false,
_sharedData._orientationM, 0);
GLES20.GlUniformMatrix4fv(uTransformM, 1, false, _transformM, 0);
// We're using external OES texture as source.
GLES20.GlActiveTexture(GLES20.GlTexture0);
//GLES20.GlBindTexture(GLES20.GlTexture2d, mFboExternal.getTexture(0));
// Trigger actual rendering.
renderQuad(_shaderCopyOes.GetHandle("aPosition"));
}
else
{
System.Diagnostics.Debug.WriteLine("OK");
}
// Bind screen buffer into use.
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, 0);
GLES20.GlViewport(0, 0, _width, _height);
// Take filter shader into use.
_shaderFilterDefault.UseProgram();
// Uniform variables.
var uBrightness = _shaderFilterDefault.GetHandle("uBrightness");
var uContrast = _shaderFilterDefault.GetHandle("uContrast");
var uSaturation = _shaderFilterDefault.GetHandle("uSaturation");
var uCornerRadius = _shaderFilterDefault.GetHandle("uCornerRadius");
var uAspectRatio = _shaderFilterDefault.GetHandle("uAspectRatio");
var uAspectRatioPreview = _shaderFilterDefault.GetHandle("uAspectRatioPreview");
// Store uniform variables into use.
GLES20.GlUniform1f(uBrightness, _sharedData._brightness);
GLES20.GlUniform1f(uContrast, _sharedData._contrast);
GLES20.GlUniform1f(uSaturation, _sharedData._saturation);
GLES20.GlUniform1f(uCornerRadius, _sharedData._cornerRadius);
GLES20.GlUniform2fv(uAspectRatio, 1, _aspectRatio, 0);
GLES20.GlUniform2fv(uAspectRatioPreview, 1,
_sharedData._aspectRatioPreview, 0);
// Use offscreen texture as source.
GLES20.GlActiveTexture(GLES20.GlTexture1);
GLES20.GlBindTexture(GLES20.GlTexture2d, _fboOffscreen.GetTexture(0));
// Trigger actual rendering.
renderQuad(_shaderCopyOes.GetHandle("aPosition"));
}
public virtual void bind()
{
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, id);
}
/**
* Binds this FBO into use and adjusts viewport to FBO size.
*/
public void Bind()
{
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, _frameBufferHandle);
GLES20.GlViewport(0, 0, _width, _height);
}
public void OnDrawFrame(IGL10 gl)
{
// Clear screen to notify driver it should not load any pixels from previous frame.
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, 0);
GLES20.GlViewport(0, 0, glSurfaceView.Width, glSurfaceView.Height);
GLES20.GlClear(GLES20.GlColorBufferBit | GLES20.GlDepthBufferBit);
if (arSession == null)
{
return;
}
// Notify ARCore session that the view size changed so that the perspective matrix and the video background
// can be properly adjusted
// displayRotationHelper.UpdateSessionIfNeeded(arSession);
try
{
// Obtain the current frame from ARSession. When the configuration is set to
// UpdateMode.BLOCKING (it is by default), this will throttle the rendering to the
// camera framerate.
Frame frame = arSession.Update();
Google.AR.Core.Camera camera = frame.Camera;
// Draw background.
GLES20.GlViewport(0, 0, glSurfaceView.Width, glSurfaceView.Height);
backgroundRenderer.Draw(frame);
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, fboId);
GLES20.GlViewport(0, 0, targetResolution.Width, targetResolution.Height);
GLES20.GlClear(GLES20.GlColorBufferBit | GLES20.GlDepthBufferBit);
backgroundRenderer.Draw(frame);
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, 0);
GLES20.GlViewport(0, 0, glSurfaceView.Width, glSurfaceView.Height);
GlUtil.CheckNoGLES2Error("Switch framebuffers.");
// Handle taps. Handling only one tap per frame, as taps are usually low frequency
// compared to frame rate.
MotionEvent tap = null;
queuedSingleTaps.TryDequeue(out tap);
if (tap != null && camera.TrackingState == TrackingState.Tracking)
{
foreach (var hit in frame.HitTest(tap))
{
var trackable = hit.Trackable;
// Check if any plane was hit, and if it was hit inside the plane polygon.
if (trackable is Plane && ((Plane)trackable).IsPoseInPolygon(hit.HitPose))
{
// Cap the number of objects created. This avoids overloading both the
// rendering system and ARCore.
if (anchors.Count >= 16)
{
anchors[0].Detach();
anchors.RemoveAt(0);
}
// Adding an Anchor tells ARCore that it should track this position in
// space. This anchor is created on the Plane to place the 3d model
// in the correct position relative to both the world and to the plane
anchors.Add(hit.CreateAnchor());
// Hits are sorted by depth. Consider only closest hit on a plane.
break;
}
}
}
// If not tracking, don't draw 3d objects.
if (camera.TrackingState == TrackingState.Paused)
{
return;
}
// Get projection matrix.
float[] projmtx = new float[16];
camera.GetProjectionMatrix(projmtx, 0, 0.1f, 100.0f);
// Get camera matrix and draw.
float[] viewmtx = new float[16];
camera.GetViewMatrix(viewmtx, 0);
// Compute lighting from average intensity of the image.
var lightIntensity = frame.LightEstimate.PixelIntensity;
// Visualize tracked points.
var pointCloud = frame.AcquirePointCloud();
pointCloudRenderer.Update(pointCloud);
// App is repsonsible for releasing point cloud resources after using it
pointCloud.Release();
var planes = new List <Plane>();
foreach (var p in arSession.GetAllTrackables(Java.Lang.Class.FromType(typeof(Plane))))
{
var plane = (Plane)p;
planes.Add(plane);
}
// Check if we detected at least one plane. If so, hide the loading message.
if (loadingMessageSnackbar != null)
{
foreach (var plane in planes)
{
if (plane.GetType() == Plane.Type.HorizontalUpwardFacing &&
plane.TrackingState == TrackingState.Tracking)
{
HideLoadingMessage();
break;
}
}
}
// Draw(frame, camera, projmtx, viewmtx, lightIntensity, planes);
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, fboId);
GLES20.GlViewport(0, 0, targetResolution.Width, targetResolution.Height);
// Restore the depth state for further drawing.
GLES20.GlDepthMask(true);
GLES20.GlEnable(GLES20.GlDepthTest);
// Draw(frame, camera, projmtx, viewmtx, lightIntensity, planes);
// DrawModels(projmtx, viewmtx, lightIntensity);
if (doCaptureCameraFrame)
{
var displayOrientedPose = camera.DisplayOrientedPose;
var pose = new VirtualStudio.Shared.DTOs.Tracking.Pose
{
Position = new System.Numerics.Vector3(displayOrientedPose.Tx(), displayOrientedPose.Ty(), displayOrientedPose.Tz()),
Orientation = new System.Numerics.Vector4(displayOrientedPose.Qx(), displayOrientedPose.Qy(), displayOrientedPose.Qz(), displayOrientedPose.Qw()),
Projection = new System.Numerics.Matrix4x4(
projmtx[0], projmtx[1], projmtx[2], projmtx[3],
projmtx[4], projmtx[5], projmtx[6], projmtx[7],
projmtx[8], projmtx[9], projmtx[10], projmtx[11],
projmtx[12], projmtx[13], projmtx[14], projmtx[15]
)
};
webRtcClient.SendMessage(pose.ToBinary());
counter = 0;
var textureBuffer = new TextureBufferImpl(targetResolution.Width, targetResolution.Height, VideoFrame.TextureBufferType.Rgb, renderTextureId, new Android.Graphics.Matrix(), null, null, null);
var i420Buffer = yuvConverter.Convert(textureBuffer);
VideoFrameAvailable?.Invoke(this, i420Buffer);
}
}
catch (System.Exception ex)
{
// Avoid crashing the application due to unhandled exceptions.
Log.Error(TAG, "Exception on the OpenGL thread", ex);
}
}
public void OnSurfaceCreated(IGL10 gl, Javax.Microedition.Khronos.Egl.EGLConfig config)
{
GLES20.GlClearColor(0.9f, 0.1f, 0.1f, 1.0f);
// GLES20.GlViewport(0, 0, glSurfaceView.Width, glSurfaceView.Height);
textureSize = arSession.CameraConfig.TextureSize;
arSession.SetDisplayGeometry(1, targetResolution.Width, targetResolution.Height);
int[] glObjs = new int[1];
GLES20.GlGenFramebuffers(1, glObjs, 0);
fboId = glObjs[0];
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, fboId);
GLES20.GlViewport(0, 0, targetResolution.Width, targetResolution.Height);
GLES20.GlGenTextures(1, glObjs, 0);
renderTextureId = glObjs[0];;
GLES20.GlBindTexture(GLES20.GlTexture2d, renderTextureId);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureWrapS, GLES20.GlClampToEdge);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureWrapT, GLES20.GlClampToEdge);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureMinFilter, GLES20.GlNearest);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureMagFilter, GLES20.GlNearest);
GLES20.GlTexImage2D(GLES20.GlTexture2d, 0, GLES20.GlRgba, targetResolution.Width, targetResolution.Height, 0, GLES20.GlRgba, GLES20.GlUnsignedByte, null);
GLES20.GlBindTexture(GLES20.GlTexture2d, 0);
GLES20.GlFramebufferTexture2D(GLES20.GlFramebuffer, GLES20.GlColorAttachment0, GLES20.GlTexture2d, renderTextureId, 0);
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, 0);
GlUtil.CheckNoGLES2Error("Create render texture.");
// Create the texture and pass it to ARCore session to be filled during update().
backgroundRenderer.CreateOnGlThread(/*context=*/ this);
if (arSession != null)
{
arSession.SetCameraTextureName(BackgroundRenderer.TextureId);
}
// Prepare the other rendering objects.
try
{
virtualObject.CreateOnGlThread(/*context=*/ this, "andy.obj", "andy.png");
virtualObject.setMaterialProperties(0.0f, 3.5f, 1.0f, 6.0f);
virtualObjectShadow.CreateOnGlThread(/*context=*/ this,
"andy_shadow.obj", "andy_shadow.png");
virtualObjectShadow.SetBlendMode(ObjectRenderer.BlendMode.Shadow);
virtualObjectShadow.setMaterialProperties(1.0f, 0.0f, 0.0f, 1.0f);
}
catch (Java.IO.IOException e)
{
Log.Error(TAG, "Failed to read obj file");
}
try
{
planeRenderer.CreateOnGlThread(/*context=*/ this, "trigrid.png");
}
catch (Java.IO.IOException e)
{
Log.Error(TAG, "Failed to read plane texture");
}
pointCloudRenderer.CreateOnGlThread(/*context=*/ this);
}
public void beforeDrawFrame()
{
GLES20.GlGetIntegerv(36006, mOriginalFramebufferId);
GLES20.GlBindFramebuffer(36160, mFramebufferId);
}