private void drawNonAlpha(ShellSurface surface, GLSL glsl)
{
var mats = surface.RenderLists;
int max = mats.Count;
// draw non-alpha material
// GLES20.GlEnable(GLES20.GlCullFace);
GLES20.GlEnable(2884);
GLES20.GlCullFace(GLES20.GlBack);
GLES20.GlDisable(GLES20.GlBlend);
for (int r = 0; r < max; r++)
{
var mat = mats[r];
TexInfo tb = null;
if (mat.material.texture != null)
{
tb = TextureFile.FetchTexInfo(mat.material.texture);
}
if (mat.material.diffuse_color[3] >= 1.0 && (tb == null || !tb.has_alpha))
{
drawOneMaterial(glsl, surface, mat);
}
}
}
public override void DrawFrame()
{
//Glass code with enable blend
GLES20.GlEnable(GL10.GlBlend);
GLES20.GlBlendFunc(GL10.GlSrcAlpha, GL10.GlOneMinusSrcAlpha);
if (brocken)
{
lx = 0.9f;
ly = 0.0f;
lz = 0.0f;
lw += 0.01f;
if (lw > 0.5)
{
lw = 0;
}
}
else
{
lw = 0;
}
base.DrawFrame();
GLES20.GlDisable(GL10.GlBlend);
}
public override void OnSurfaceCreated(IGL10 gl, Javax.Microedition.Khronos.Egl.EGLConfig config)
{
base.OnSurfaceCreated(gl, config);
//SETUP OpenGL ES
GLES20.GlClearColor(0.9f, 0.9f, 0.9f, 1.0f);
GLES20.GlEnable(GLES20.GlDepthTest); //uncoment if needs enabled dpeth test
//GLES20.GlEnable(2884); // GlCullFace == 2884 see OpenGL documentation to this constant value GLES20.GlDisable(2884);
//GLES20.GlFrontFace(GLES20.GlCcw);
//GLES20.GlCullFace(GLES20.GlFront);
GLES20.GlEnable(GL10.GlBlend);
GLES20.GlBlendFunc(GL10.GlSrcAlpha, GL10.GlOneMinusSrcAlpha);
// GLES20.GlDisable(GL10.GlLighting);
// GLES20.GlEnable(2884);
// GLES20.GlDisable(GL10.GlDepthBufferBit);
// GLES20.GlEnable(GL10.GlDither);
// GLES20.GlEnable(GL10.GlBlend);
// GLES20.GlBlendFunc(GL10.GlSrcAlpha, GL10.GlOne);
//ENDSETUP OpenGL ES
//Loading objects
glObjects.Add(new GLObject(this, "vertex_shader", "fragment_shader", "oldhouse_objvertex", "oldhouse_objnormal", "oldhouse_objtexture", "body"));
//Ask android to run RAM garbage cleaner
System.GC.Collect();
}
public void Initialize()
{
GLES20.GlClearColor(0.1f, 0.1f, 0.1f, 0.5f); // Dark background so text shows up well
cubeVertices = PrepareBuffer(WorldLayoutData.CubeCoords);
cubeNormals = PrepareBuffer(WorldLayoutData.CubeNormals);
cubeTextureCoords = PrepareBuffer(WorldLayoutData.CubeTexCoords);
floorVertices = PrepareBuffer(WorldLayoutData.FloorCoords);
floorNormals = PrepareBuffer(WorldLayoutData.FloorNormals);
floorColors = PrepareBuffer(WorldLayoutData.FloorColors);
monkeyFound = DrawingUtils.LoadGlTexture(resources, Resource.Drawable.texture2);
monkeyNotFound = DrawingUtils.LoadGlTexture(resources, Resource.Drawable.texture1);
int vertexShader = DrawingUtils.LoadGlShader(GLES20.GlVertexShader, resources, Resource.Raw.vertex);
int gridShader = DrawingUtils.LoadGlShader(GLES20.GlFragmentShader, resources, Resource.Raw.fragment);
glProgram = GLES20.GlCreateProgram();
GLES20.GlAttachShader(glProgram, vertexShader);
GLES20.GlAttachShader(glProgram, gridShader);
GLES20.GlLinkProgram(glProgram);
GLES20.GlEnable(GLES20.GlDepthTest);
// Object first appears directly in front of user
Matrix.SetIdentityM(modelCube, 0);
Matrix.TranslateM(modelCube, 0, 0, 0, -mObjectDistance);
Matrix.SetIdentityM(modelFloor, 0);
Matrix.TranslateM(modelFloor, 0, 0, -mFloorDepth, 0); // Floor appears below user
CheckGlError("onSurfaceCreated");
}
/**
* \brief Draw the video keyframe (in OpenGL).
* @param mvpMatrix the model-view-projection matrix.
*/
private void DrawKeyFrame(float[] mvpMatrix)
{
GLES20.GlEnable(GLES20.GlBlend);
GLES20.GlBlendFunc(GLES20.GlSrcAlpha, GLES20.GlOneMinusSrcAlpha);
GLES20.GlUseProgram(mKeyframe_Program_GL_ID);
int vertexHandle = GLES20.GlGetAttribLocation(mKeyframe_Program_GL_ID, "vertexPosition");
int textureCoordHandle = GLES20.GlGetAttribLocation(mKeyframe_Program_GL_ID, "vertexTexCoord");
int mvpMatrixHandle = GLES20.GlGetUniformLocation(mKeyframe_Program_GL_ID, "modelViewProjectionMatrix");
int texSampler2DHandle = GLES20.GlGetUniformLocation(mKeyframe_Program_GL_ID, "texSampler2D");
GLES20.GlVertexAttribPointer(vertexHandle, 3, GLES20.GlFloat, false, 0, mVertices_Buffer);
GLES20.GlVertexAttribPointer(textureCoordHandle, 2, GLES20.GlFloat, false, 0, mTexCoords_Buffer);
GLES20.GlEnableVertexAttribArray(vertexHandle);
GLES20.GlEnableVertexAttribArray(textureCoordHandle);
GLES20.GlActiveTexture(GLES20.GlTexture0);
GLES20.GlBindTexture(GLES20.GlTexture2d, mKeyframeTexture_GL_ID);
GLES20.GlUniform1i(texSampler2DHandle, 0);
GLES20.GlUniformMatrix4fv(mvpMatrixHandle, 1, false, mvpMatrix, 0);
GLES20.GlDrawElements(GLES20.GlTriangles, mIndices_Number, GLES20.GlUnsignedShort, mIndex_Buffer);
GLES20.GlDisableVertexAttribArray(vertexHandle);
GLES20.GlDisableVertexAttribArray(textureCoordHandle);
GLES20.GlUseProgram(0);
GLES20.GlDisable(GLES20.GlBlend);
}
public void Draw(Frame frame)
{
if (frame.HasDisplayGeometryChanged)//.IsDisplayRotationChanged)
{
frame.TransformDisplayUvCoords(mQuadTexCoord, mQuadTexCoordTransformed);
}
GLES20.GlDisable(GLES20.GlDepthTest);
GLES20.GlDepthMask(false);
GLES20.GlBindTexture(GLES11Ext.GlTextureExternalOes, TextureId);
GLES20.GlUseProgram(mQuadProgram);
GLES20.GlVertexAttribPointer(
mQuadPositionParam, COORDS_PER_VERTEX, GLES20.GlFloat, false, 0, mQuadVertices);
GLES20.GlVertexAttribPointer(mQuadTexCoordParam, TEXCOORDS_PER_VERTEX,
GLES20.GlFloat, false, 0, mQuadTexCoordTransformed);
GLES20.GlEnableVertexAttribArray(mQuadPositionParam);
GLES20.GlEnableVertexAttribArray(mQuadTexCoordParam);
GLES20.GlDrawArrays(GLES20.GlTriangleStrip, 0, 4);
// Disable vertex arrays
GLES20.GlDisableVertexAttribArray(mQuadPositionParam);
GLES20.GlDisableVertexAttribArray(mQuadTexCoordParam);
// Restore the depth state for further drawing.
GLES20.GlDepthMask(true);
GLES20.GlEnable(GLES20.GlDepthTest);
ShaderUtil.CheckGLError(TAG, "Draw");
}
/**
* Draws a frame for an eye.
*
* @param eye The eye to render. Includes all required transformations.
*/
public void OnDrawEye(Eye eye)
{
GLES20.GlEnable(GLES20.GlDepthTest);
GLES20.GlClear(GLES20.GlColorBufferBit | GLES20.GlDepthBufferBit);
CheckGLError("colorParam");
// Apply the eye transformation to the camera.
Matrix.MultiplyMM(view, 0, eye.GetEyeView(), 0, camera, 0);
// Set the position of the light
Matrix.MultiplyMV(lightPosInEyeSpace, 0, view, 0, LIGHT_POS_IN_WORLD_SPACE, 0);
// Build the ModelView and ModelViewProjection matrices
// for calculating cube position and light.
float [] perspective = eye.GetPerspective(Z_NEAR, Z_FAR);
Matrix.MultiplyMM(modelView, 0, view, 0, modelCube, 0);
Matrix.MultiplyMM(modelViewProjection, 0, perspective, 0, modelView, 0);
DrawCube();
// Set modelView for the floor, so we draw floor in the correct location
Matrix.MultiplyMM(modelView, 0, view, 0, modelFloor, 0);
Matrix.MultiplyMM(modelViewProjection, 0, perspective, 0, modelView, 0);
DrawFloor();
}
public void OnSurfaceCreated(IGL10 gl, EGLConfig config)
{
GLES20.GlEnable(GL10.GlBlend);
// For premultiplied alpha:
// GLES20.GlBlendFunc( GL10.GL_ONE, GL10.GL_ONE_MINUS_SRC_ALPHA );
GLES20.GlBlendFunc(GL10.GlSrcAlpha, GL10.GlOneMinusSrcAlpha);
GLES20.GlEnable(GL10.GlScissorTest);
TextureCache.Reload();
}
/**
* \brief Draw this mesh (in OpenGL).
* @param modelViewProjection this mesh model-view-projection matrix.
*/
public void DrawMesh(float[] modelViewProjection)
{
//set up gl state
GLES20.GlEnable(GLES20.GlDepthTest);
//GLES20.GlDisable(GLES20.GlCullFaceMode);
GLES20.GlCullFace(GLES20.GlBack);
GLES20.GlFrontFace(GLES20.GlCw);
//set shader program to use
GLES20.GlUseProgram(mProgram_GL_ID);
RenderUtils.CheckGLError("DrawMesh:glUseProgram");
//find attrib and unifroms in shader program
int vertexHandle = GLES20.GlGetAttribLocation(mProgram_GL_ID, "vertexPosition");
//int normalHandle = GLES20.GlGetAttribLocation(Program_GL_ID, "vertexNormal");
int textureCoordHandle = GLES20.GlGetAttribLocation(mProgram_GL_ID, "vertexTexCoord");
int mvpMatrixHandle = GLES20.GlGetUniformLocation(mProgram_GL_ID, "modelViewProjectionMatrix");
int texSampler2DHandle = GLES20.GlGetUniformLocation(mProgram_GL_ID, "texSampler2D");
RenderUtils.CheckGLError("DrawMesh:get attribs and uniforms");
//upload mesh data to OpenGL attribs
GLES20.GlVertexAttribPointer(vertexHandle, 3, GLES20.GlFloat, false, 0, mVertices_Buffer);
//GLES20.GlVertexAttribPointer(normalHandle, 3, GLES20.GlFloat, false, 0, Normals_Buffer);
GLES20.GlVertexAttribPointer(textureCoordHandle, 2, GLES20.GlFloat, false, 0, mTexCoords_Buffer);
RenderUtils.CheckGLError("DrawMesh:put attrib pointers");
//enable gl attribs to use
GLES20.GlEnableVertexAttribArray(vertexHandle);
//GLES20.GlEnableVertexAttribArray(normalHandle);
GLES20.GlEnableVertexAttribArray(textureCoordHandle);
RenderUtils.CheckGLError("DrawMesh:enable attrib arrays");
// activate texture 0, bind it, and pass to shader
GLES20.GlActiveTexture(GLES20.GlTexture0);
GLES20.GlBindTexture(GLES20.GlTexture2d, mTexture_GL_ID);
GLES20.GlUniform1i(texSampler2DHandle, 0);
RenderUtils.CheckGLError("DrawMesh:activate texturing");
// pass the model view matrix to the shader
GLES20.GlUniformMatrix4fv(mvpMatrixHandle, 1, false, modelViewProjection, 0);
RenderUtils.CheckGLError("DrawMesh:upload matrix");
// finally draw the teapot
GLES20.GlDrawElements(GLES20.GlTriangles, mIndices_Number, GLES20.GlUnsignedShort, mIndex_Buffer);
RenderUtils.CheckGLError("DrawMesh:draw elements");
// disable the enabled arrays
GLES20.GlDisableVertexAttribArray(vertexHandle);
//GLES20.GlDisableVertexAttribArray(normalHandle);
GLES20.GlDisableVertexAttribArray(textureCoordHandle);
RenderUtils.CheckGLError("DrawMesh:disable attrib arrays");
}
/// <summary>
/// Draw face geometrical features. This method is called on each frame.
/// </summary>
private void DrawFaceGeometry()
{
ShaderUtil.CheckGlError(TAG, "Before draw.");
Log.Debug(TAG, "Draw face geometry: mPointsNum: " + mPointsNum + " mTrianglesNum: " + mTrianglesNum);
GLES20.GlActiveTexture(GLES20.GlTexture0);
GLES20.GlBindTexture(GLES20.GlTexture2d, mTextureName);
GLES20.GlUniform1i(mTextureUniform, 0);
ShaderUtil.CheckGlError(TAG, "Init texture.");
GLES20.GlEnable(GLES20.GlDepthTest);
GLES20.GlEnable(GL_CULL_FACE_CONSTANT);
// Draw point.
GLES20.GlUseProgram(mProgram);
ShaderUtil.CheckGlError(TAG, "Draw point.");
GLES20.GlEnableVertexAttribArray(mPositionAttribute);
GLES20.GlEnableVertexAttribArray(mTextureCoordAttribute);
GLES20.GlEnableVertexAttribArray(mColorUniform);
GLES20.GlBindBuffer(GLES20.GlArrayBuffer, mVerticeId);
GLES20.GlVertexAttribPointer(mPositionAttribute, POSITION_COMPONENTS_NUMBER, GLES20.GlFloat, false,
BYTES_PER_POINT, 0);
GLES20.GlVertexAttribPointer(mTextureCoordAttribute, TEXCOORD_COMPONENTS_NUMBER, GLES20.GlFloat, false,
BYTES_PER_COORD, 0);
GLES20.GlUniform4f(mColorUniform, 1.0f, 0.0f, 0.0f, 1.0f);
GLES20.GlUniformMatrix4fv(mModelViewProjectionUniform, 1, false, mModelViewProjections, 0);
GLES20.GlUniform1f(mPointSizeUniform, 5.0f); // Set the size of Point to 5.
GLES20.GlDrawArrays(GLES20.GlPoints, 0, mPointsNum);
GLES20.GlDisableVertexAttribArray(mColorUniform);
GLES20.GlBindBuffer(GLES20.GlArrayBuffer, 0);
ShaderUtil.CheckGlError(TAG, "Draw point.");
// Draw triangles.
GLES20.GlEnableVertexAttribArray(mColorUniform);
// Clear the color and use the texture color to draw triangles.
GLES20.GlUniform4f(mColorUniform, 0.0f, 0.0f, 0.0f, 0.0f);
GLES20.GlBindBuffer(GLES20.GlElementArrayBuffer, mTriangleId);
// The number of input triangle points
GLES20.GlDrawElements(GLES20.GlTriangles, mTrianglesNum * 3, GLES20.GlUnsignedInt, 0);
GLES20.GlBindBuffer(GLES20.GlElementArrayBuffer, 0);
GLES20.GlDisableVertexAttribArray(mColorUniform);
ShaderUtil.CheckGlError(TAG, "Draw triangles.");
GLES20.GlDisableVertexAttribArray(mTextureCoordAttribute);
GLES20.GlDisableVertexAttribArray(mPositionAttribute);
GLES20.GlBindTexture(GLES20.GlTexture2d, 0);
GLES20.GlDisable(GLES20.GlDepthTest);
GLES20.GlDisable(GL_CULL_FACE_CONSTANT);
ShaderUtil.CheckGlError(TAG, "Draw after.");
}
void GLSurfaceView.IRenderer.OnSurfaceCreated(Javax.Microedition.Khronos.Opengles.IGL10 gl, Javax.Microedition.Khronos.Egl.EGLConfig config)
{
GLES20.GlClearColor(1f, 1f, 1f, 1.0f);
GLES20.GlEnable(GLES20.GlDepthTest);
mPointCloud = new PointCloud(mMaxDepthPoints);
mGrid = new Grid();
mCameraFrustumAndAxis = new CameraFrustumAndAxis();
Matrix.SetIdentityM(mViewMatrix, 0);
Matrix.SetLookAtM(mViewMatrix, 0, 5f, 5f, 5f, 0f, 0f, 0f, 0f, 1f, 0f);
mCameraFrustumAndAxis.ModelMatrix = ModelMatCalculator.ModelMatrix;
}
public override void OnSurfaceCreated(IGL10 gl, Javax.Microedition.Khronos.Egl.EGLConfig config)
{
base.OnSurfaceCreated(gl, config);
//SETUP OpenGL ES
GLES20.GlClearColor(0.9f, 0.9f, 0.9f, 0.9f);
GLES20.GlEnable(GLES20.GlDepthTest); //uncoment if needs enabled dpeth test
//ENDSETUP OpenGL ES
//Loading objects
glObjects.Add(new GLObject(this, "vertex_shader", "fragment_shader", "oldhouse_objvertex", "oldhouse_objnormal", "oldhouse_objtexture", "body"));
//Ask android to run RAM garbage cleaner
System.GC.Collect();
}
public void OnSurfaceCreated(IGL10 gl, Javax.Microedition.Khronos.Egl.EGLConfig config)
{
// Set background color and enable depth testing
GLES20.GlClearColor(1f, 1f, 1f, 1.0f);
GLES20.GlEnable(GLES20.GlDepthTest);
resetModelMatCalculator();
mCameraFrustum = new CameraFrustum();
mFloorGrid = new Grid();
mCameraFrustumAndAxis = new CameraFrustumAndAxis();
mTrajectory = new Trajectory(3);
// Construct the initial view matrix
Matrix.SetIdentityM(mViewMatrix, 0);
Matrix.SetLookAtM(mViewMatrix, 0, 5f, 5f, 5f, 0f, 0f, 0f, 0f, 1f, 0f);
mCameraFrustumAndAxis.ModelMatrix = ModelMatCalculator.ModelMatrix;
}
/**
* Draws the AR background image. The image will be drawn such that virtual content rendered
* with the matrices provided by {@link Frame#getViewMatrix(float[], int)} and
* {@link Session#getProjectionMatrix(float[], int, float, float)} will accurately follow
* static physical objects. This must be called <b>before</b> drawing virtual content.
*
* @param frame The last {@code Frame} returned by {@link Session#update()}.
*/
public void Draw(Frame frame)
{
// If display rotation changed (also includes view size change), we need to re-query the uv
// coordinates for the screen rect, as they may have changed as well.
if (frame.HasDisplayGeometryChanged)
{
frame.TransformDisplayUvCoords(mQuadTexCoord, mQuadTexCoordTransformed);
}
// No need to test or write depth, the screen quad has arbitrary depth, and is expected
// to be drawn first.
GLES20.GlDisable(GLES20.GlDepthTest);
GLES20.GlDepthMask(false);
GLES20.GlBindTexture(mTextureTarget, TextureId);
GLES20.GlTexParameteri(mTextureTarget, GLES20.GlTextureWrapS, GLES20.GlClampToEdge);
GLES20.GlTexParameteri(mTextureTarget, GLES20.GlTextureWrapT, GLES20.GlClampToEdge);
GLES20.GlTexParameteri(mTextureTarget, GLES20.GlTextureMinFilter, GLES20.GlNearest);
GLES20.GlTexParameteri(mTextureTarget, GLES20.GlTextureMagFilter, GLES20.GlNearest);
GLES20.GlUseProgram(mQuadProgram);
// Set the vertex positions.
GLES20.GlVertexAttribPointer(
mQuadPositionParam, COORDS_PER_VERTEX, GLES20.GlFloat, false, 0, mQuadVertices);
// Set the texture coordinates.
GLES20.GlVertexAttribPointer(mQuadTexCoordParam, TEXCOORDS_PER_VERTEX,
GLES20.GlFloat, false, 0, mQuadTexCoordTransformed);
// Enable vertex arrays
GLES20.GlEnableVertexAttribArray(mQuadPositionParam);
GLES20.GlEnableVertexAttribArray(mQuadTexCoordParam);
GLES20.GlDrawArrays(GLES20.GlTriangleStrip, 0, 4);
// Disable vertex arrays
GLES20.GlDisableVertexAttribArray(mQuadPositionParam);
GLES20.GlDisableVertexAttribArray(mQuadTexCoordParam);
// Restore the depth state for further drawing.
GLES20.GlDepthMask(true);
GLES20.GlEnable(GLES20.GlDepthTest);
ShaderUtil.CheckGLError(TAG, "Draw");
}
public void OnSurfaceCreated(IGL10 gl, Javax.Microedition.Khronos.Egl.EGLConfig config)
{
if (RenderManager.externalPaused)
{
RenderManager.initShaders();
}
else
{
RenderManager.createObjects();
}
GLES20.GlClearColor(0.1f, 0.1f, 0.9f, 0.0f);
GLES20.GlEnable(GLES20.GlDepthTest);
GLES20.GlEnable(GLES20.GlCullFaceMode);
GLES20.GlCullFace(GLES20.GlBack);
}
public void OnSurfaceCreated(IGL10 gl, Javax.Microedition.Khronos.Egl.EGLConfig config)
{
// Create the triangle
SetupTriangle();
// Create the image information
SetupImage();
// Set the clear color to yellow
GLES20.GlClearColor(1.0f, 1.0f, 0f, 1);
GLES20.GlEnable(GLES20.GlBlend);
GLES20.GlBlendFunc(GLES20.GlOne, GLES20.GlOneMinusSrcAlpha);
#region Solid colors mode
/*
* // Create the shaders, solid color
* int vertexShader = ShaderHelper.LoadShader(GLES20.GlVertexShader, ShaderHelper.VsSolidColor);
* int fragmentShader = ShaderHelper.LoadShader(GLES20.GlFragmentShader, ShaderHelper.FsSolidColor);
*
* ShaderHelper.SpSolidColor = GLES20.GlCreateProgram(); // create empty OpenGL ES Program
* GLES20.GlAttachShader(ShaderHelper.SpSolidColor, vertexShader); // add the vertex shader to program
* GLES20.GlAttachShader(ShaderHelper.SpSolidColor, fragmentShader); // add the fragment shader to program
* GLES20.GlLinkProgram(ShaderHelper.SpSolidColor); // creates OpenGL ES program executables
*
* // Set our shader programm
* GLES20.GlUseProgram(ShaderHelper.SpSolidColor);
*/
#endregion
#region Texture mode
// Create the shaders, images
int vertexShader = ShaderHelper.LoadShader(GLES20.GlVertexShader, ShaderHelper.VsImage);
int fragmentShader = ShaderHelper.LoadShader(GLES20.GlFragmentShader, ShaderHelper.FsImage);
ShaderHelper.SpImage = GLES20.GlCreateProgram();
GLES20.GlAttachShader(ShaderHelper.SpImage, vertexShader);
GLES20.GlAttachShader(ShaderHelper.SpImage, fragmentShader);
GLES20.GlLinkProgram(ShaderHelper.SpImage);
// Set our shader programm
GLES20.GlUseProgram(ShaderHelper.SpImage);
#endregion
}
public void OnDrawFrame(HeadTransform head, EyeParams leftEye, EyeParams rightEye)
{
mStereoRenderer.OnNewFrame(head);
GLES20.GlEnable(GLES20.GlScissorTest);
leftEye.getViewport().setGLViewport();
leftEye.getViewport().setGLScissor();
mStereoRenderer.OnDrawEye(leftEye.getTransform());
if (rightEye == null)
{
return;
}
rightEye.getViewport().setGLViewport();
rightEye.getViewport().setGLScissor();
mStereoRenderer.OnDrawEye(rightEye.getTransform());
}
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);
}
private void DrawSortedPlans(List <ARPlane> sortedPlanes, float[] cameraViews, float[] cameraProjection)
{
ShaderUtil.CheckGlError(TAG, "Draw sorted plans start.");
GLES20.GlDepthMask(false);
GLES20.GlEnable(GLES20.GlBlend);
GLES20.GlBlendFuncSeparate(
GLES20.GlDstAlpha, GLES20.GlOne, GLES20.GlZero, GLES20.GlOneMinusSrcAlpha);
GLES20.GlUseProgram(mProgram);
GLES20.GlEnableVertexAttribArray(glPositionParameter);
foreach (ARPlane plane in sortedPlanes)
{
float[] planeMatrix = new float[MATRIX_SIZE];
plane.CenterPose.ToMatrix(planeMatrix, 0);
Array.Copy(planeMatrix, modelMatrix, MATRIX_SIZE);
float scaleU = 1.0f / LABEL_WIDTH;
// Set the value of the plane angle uv matrix.
planeAngleUvMatrix[0] = scaleU;
planeAngleUvMatrix[1] = 0.0f;
planeAngleUvMatrix[2] = 0.0f;
float scaleV = 1.0f / LABEL_HEIGHT;
planeAngleUvMatrix[3] = scaleV;
int idx = plane.Label.Ordinal();
Log.Debug(TAG, "Plane getLabel:" + idx);
idx = Java.Lang.Math.Abs(idx);
GLES20.GlActiveTexture(GLES20.GlTexture0 + idx);
GLES20.GlBindTexture(GLES20.GlTexture2d, textures[idx]);
GLES20.GlUniform1i(glTexture, idx);
GLES20.GlUniformMatrix2fv(glPlaneUvMatrix, 1, false, planeAngleUvMatrix, 0);
DrawLabel(cameraViews, cameraProjection);
}
GLES20.GlDisableVertexAttribArray(glPositionParameter);
GLES20.GlBindTexture(GLES20.GlTexture2d, 0);
GLES20.GlDisable(GLES20.GlBlend);
GLES20.GlDepthMask(true);
ShaderUtil.CheckGlError(TAG, "Draw sorted plans end.");
}
/// <summary>
/// Render each frame.
/// This method is called when Android.Opengl.GLSurfaceView.IRenderer's OnDrawFrame.
/// </summary>
/// <param name="frame">ARFrame</param>
public void OnDrawFrame(ARFrame frame)
{
ShaderUtil.CheckGlError(TAG, "On draw frame start.");
if (frame == null)
{
return;
}
if (frame.HasDisplayGeometryChanged)
{
frame.TransformDisplayUvCoords(mTexBuffer, mTexTransformedBuffer);
}
Clear();
GLES20.GlDisable(GLES20.GlDepthTest);
GLES20.GlDepthMask(false);
GLES20.GlUseProgram(mProgram);
// Set the texture ID.
GLES20.GlBindTexture(GLES11Ext.GlTextureExternalOes, mExternalTextureId);
// Set the projection matrix.
GLES20.GlUniformMatrix4fv(mMatrix, 1, false, mProjectionMatrix, 0);
GLES20.GlUniformMatrix4fv(mCoordMatrix, 1, false, coordMatrixs, 0);
// Set the vertex.
GLES20.GlEnableVertexAttribArray(mPosition);
GLES20.GlVertexAttribPointer(mPosition, 2, GLES20.GlFloat, false, 0, mVerBuffer);
// Set the texture coordinates.
GLES20.GlEnableVertexAttribArray(mCoord);
GLES20.GlVertexAttribPointer(mCoord, 2, GLES20.GlFloat, false, 0, mTexTransformedBuffer);
// Number of vertices.
GLES20.GlDrawArrays(GLES20.GlTriangleStrip, 0, 4);
GLES20.GlDisableVertexAttribArray(mPosition);
GLES20.GlDisableVertexAttribArray(mCoord);
GLES20.GlDepthMask(true);
GLES20.GlEnable(GLES20.GlDepthTest);
ShaderUtil.CheckGlError(TAG, "On draw frame end.");
}
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));
}
public override void OnSurfaceCreated(IGL10 gl, Javax.Microedition.Khronos.Egl.EGLConfig config)
{
base.OnSurfaceCreated(gl, config);
//SETUP OpenGL ES
GLES20.GlClearColor(0.5f, 0.5f, 0.5f, 1.0f);
GLES20.GlEnable(GLES20.GlDepthTest); //uncoment if needs enabled dpeth test
// GLES20.GlEnable(2884); // GlCullFace == 2884 see OpenGL documentation to this constant value
// GLES20.GlCullFace(GLES20.GlFront);
//ENDSETUP OpenGL ES
//Loading objects
glObjects.Add(new GLObject(this, "den_vertex_shader", "den_fragment_shader", "den_house1_objvertex", "den_house1_objnormal", "den_house1_objtexture", "den_housetextutre2"));
glObjects.Add(new GLObject(this, "den_vertex_shader", "den_fragment_shader", "den_house2_objvertex", "den_house2_objnormal", "den_house2_objtexture", "den_housetextutre2"));
glObjects.Add(new GLObject(this, "den_vertex_shader", "den_fragment_shader", "den_house3_objvertex", "den_house3_objnormal", "den_house3_objtexture", "den_housetextutre2"));
glObjects.Add(new DenGlassObject(this, "den_glass"));
//Ask android to run RAM garbage cleaner
System.GC.Collect();
}
/**
* Generates a frame of data using GL commands.
* <p>
* We have an 8-frame animation sequence that wraps around. It looks like this:
* <pre>
* 0 1 2 3
* 7 6 5 4
* </pre>
* We draw one of the eight rectangles and leave the rest set to the zero-fill color. */
private void generateSurfaceFrame(int frameIndex)
{
frameIndex %= 8;
int startX, startY;
if (frameIndex < 4)
{
// (0,0) is bottom-left in GL
startX = frameIndex * (mWidth / 4);
startY = mHeight / 2;
}
else
{
startX = (7 - frameIndex) * (mWidth / 4);
startY = 0;
}
GLES20.GlDisable(GLES20.GlScissorTest);
GLES20.GlClearColor(TEST_R0 / 255.0f, TEST_G0 / 255.0f, TEST_B0 / 255.0f, 1.0f);
GLES20.GlClear(GLES20.GlColorBufferBit);
GLES20.GlEnable(GLES20.GlScissorTest);
GLES20.GlScissor(startX, startY, mWidth / 4, mHeight / 2);
GLES20.GlClearColor(TEST_R1 / 255.0f, TEST_G1 / 255.0f, TEST_B1 / 255.0f, 1.0f);
GLES20.GlClear(GLES20.GlColorBufferBit);
}
/**
* Draws the model.
*
* @param cameraView A 4x4 view matrix, in column-major order.
* @param cameraPerspective A 4x4 projection matrix, in column-major order.
* @param lightIntensity Illumination intensity. Combined with diffuse and specular material
* properties.
* @see #setBlendMode(BlendMode)
* @see #updateModelMatrix(float[], float)
* @see #setMaterialProperties(float, float, float, float)
* @see android.opengl.Matrix
*/
public void Draw(float[] cameraView, float[] cameraPerspective, float lightIntensity)
{
ShaderUtil.CheckGLError(TAG, "Before draw");
// Build the ModelView and ModelViewProjection matrices
// for calculating object position and light.
Android.Opengl.Matrix.MultiplyMM(mModelViewMatrix, 0, cameraView, 0, mModelMatrix, 0);
Android.Opengl.Matrix.MultiplyMM(mModelViewProjectionMatrix, 0, cameraPerspective, 0, mModelViewMatrix, 0);
GLES20.GlUseProgram(mProgram);
// Set the lighting environment properties.
Android.Opengl.Matrix.MultiplyMV(mViewLightDirection, 0, mModelViewMatrix, 0, LIGHT_DIRECTION, 0);
normalizeVec3(mViewLightDirection);
GLES20.GlUniform4f(mLightingParametersUniform,
mViewLightDirection[0], mViewLightDirection[1], mViewLightDirection[2], lightIntensity);
// Set the object material properties.
GLES20.GlUniform4f(mMaterialParametersUniform, mAmbient, mDiffuse, mSpecular,
mSpecularPower);
// Attach the object texture.
GLES20.GlActiveTexture(GLES20.GlTexture0);
GLES20.GlBindTexture(GLES20.GlTexture2d, mTextures[0]);
GLES20.GlUniform1i(mTextureUniform, 0);
// Set the vertex attributes.
GLES20.GlBindBuffer(GLES20.GlArrayBuffer, mVertexBufferId);
GLES20.GlVertexAttribPointer(
mPositionAttribute, COORDS_PER_VERTEX, GLES20.GlFloat, false, 0, mVerticesBaseAddress);
GLES20.GlVertexAttribPointer(
mNormalAttribute, 3, GLES20.GlFloat, false, 0, mNormalsBaseAddress);
GLES20.GlVertexAttribPointer(
mTexCoordAttribute, 2, GLES20.GlFloat, false, 0, mTexCoordsBaseAddress);
GLES20.GlBindBuffer(GLES20.GlArrayBuffer, 0);
// Set the ModelViewProjection matrix in the shader.
GLES20.GlUniformMatrix4fv(
mModelViewUniform, 1, false, mModelViewMatrix, 0);
GLES20.GlUniformMatrix4fv(
mModelViewProjectionUniform, 1, false, mModelViewProjectionMatrix, 0);
// Enable vertex arrays
GLES20.GlEnableVertexAttribArray(mPositionAttribute);
GLES20.GlEnableVertexAttribArray(mNormalAttribute);
GLES20.GlEnableVertexAttribArray(mTexCoordAttribute);
if (mBlendMode != BlendMode.Null)
{
GLES20.GlDepthMask(false);
GLES20.GlEnable(GLES20.GlBlend);
switch (mBlendMode)
{
case BlendMode.Shadow:
// Multiplicative blending function for Shadow.
GLES20.GlBlendFunc(GLES20.GlZero, GLES20.GlOneMinusSrcAlpha);
break;
case BlendMode.Grid:
// Grid, additive blending function.
GLES20.GlBlendFunc(GLES20.GlSrcAlpha, GLES20.GlOneMinusSrcAlpha);
break;
}
}
GLES20.GlBindBuffer(GLES20.GlElementArrayBuffer, mIndexBufferId);
GLES20.GlDrawElements(GLES20.GlTriangles, mIndexCount, GLES20.GlUnsignedShort, 0);
GLES20.GlBindBuffer(GLES20.GlElementArrayBuffer, 0);
if (mBlendMode != BlendMode.Null)
{
GLES20.GlDisable(GLES20.GlBlend);
GLES20.GlDepthMask(true);
}
// Disable vertex arrays
GLES20.GlDisableVertexAttribArray(mPositionAttribute);
GLES20.GlDisableVertexAttribArray(mNormalAttribute);
GLES20.GlDisableVertexAttribArray(mTexCoordAttribute);
GLES20.GlBindTexture(GLES20.GlTexture2d, 0);
ShaderUtil.CheckGLError(TAG, "After draw");
}
/**
* Draws the collection of tracked planes, with closer planes hiding more distant ones.
*
* @param allPlanes The collection of planes to draw.
* @param cameraPose The pose of the camera, as returned by {@link Frame#getPose()}
* @param cameraPerspective The projection matrix, as returned by
* {@link Session#getProjectionMatrix(float[], int, float, float)}
*/
public void DrawPlanes(IEnumerable <Plane> allPlanes, Pose cameraPose, float[] cameraPerspective)
{
// Planes must be sorted by distance from camera so that we draw closer planes first, and
// they occlude the farther planes.
List <SortablePlane> sortedPlanes = new List <SortablePlane>();
float[] normal = new float[3];
float cameraX = cameraPose.Tx();
float cameraY = cameraPose.Ty();
float cameraZ = cameraPose.Tz();
foreach (var plane in allPlanes)
{
if (plane.GetType() != Plane.Type.HorizontalUpwardFacing ||
plane.GetTrackingState() != Plane.TrackingState.Tracking)
{
continue;
}
var center = plane.CenterPose;
// Get transformed Y axis of plane's coordinate system.
center.GetTransformedAxis(1, 1.0f, normal, 0);
// Compute dot product of plane's normal with vector from camera to plane center.
float distance = (cameraX - center.Tx()) * normal[0] +
(cameraY - center.Ty()) * normal[1] + (cameraZ - center.Tz()) * normal[2];
if (distance < 0)
{ // Plane is back-facing.
continue;
}
sortedPlanes.Add(new SortablePlane(distance, plane));
}
sortedPlanes.Sort((x, y) => x.Distance.CompareTo(y.Distance));
var cameraView = new float[16];
cameraPose.Inverse().ToMatrix(cameraView, 0);
// Planes are drawn with additive blending, masked by the alpha channel for occlusion.
// Start by clearing the alpha channel of the color buffer to 1.0.
GLES20.GlClearColor(1, 1, 1, 1);
GLES20.GlColorMask(false, false, false, true);
GLES20.GlClear(GLES20.GlColorBufferBit);
GLES20.GlColorMask(true, true, true, true);
// Disable depth write.
GLES20.GlDepthMask(false);
// Additive blending, masked by alpha chanel, clearing alpha channel.
GLES20.GlEnable(GLES20.GlBlend);
GLES20.GlBlendFuncSeparate(
GLES20.GlDstAlpha, GLES20.GlOne, // RGB (src, dest)
GLES20.GlZero, GLES20.GlOneMinusSrcAlpha); // ALPHA (src, dest)
// Set up the shader.
GLES20.GlUseProgram(mPlaneProgram);
// Attach the texture.
GLES20.GlActiveTexture(GLES20.GlTexture0);
GLES20.GlBindTexture(GLES20.GlTexture2d, mTextures[0]);
GLES20.GlUniform1i(mTextureUniform, 0);
// Shared fragment uniforms.
GLES20.GlUniform4fv(mGridControlUniform, 1, GRID_CONTROL, 0);
// Enable vertex arrays
GLES20.GlEnableVertexAttribArray(mPlaneXZPositionAlphaAttribute);
ShaderUtil.CheckGLError(TAG, "Setting up to draw planes");
foreach (var sortedPlane in sortedPlanes)
{
var plane = sortedPlane.Plane;
float[] planeMatrix = new float[16];
plane.CenterPose.ToMatrix(planeMatrix, 0);
updatePlaneParameters(planeMatrix, plane.ExtentX,
plane.ExtentZ, plane.PlanePolygon);
// Get plane index. Keep a map to assign same indices to same planes.
int planeIndex = -1;
if (!mPlaneIndexMap.TryGetValue(plane, out planeIndex))
{
planeIndex = Java.Lang.Integer.ValueOf(mPlaneIndexMap.Count).IntValue();
mPlaneIndexMap.Add(plane, planeIndex);
}
// Set plane color. Computed deterministically from the Plane index.
int colorIndex = planeIndex % PLANE_COLORS_RGBA.Length;
colorRgbaToFloat(mPlaneColor, PLANE_COLORS_RGBA[colorIndex]);
GLES20.GlUniform4fv(mLineColorUniform, 1, mPlaneColor, 0);
GLES20.GlUniform4fv(mDotColorUniform, 1, mPlaneColor, 0);
// Each plane will have its own angle offset from others, to make them easier to
// distinguish. Compute a 2x2 rotation matrix from the angle.
float angleRadians = planeIndex * 0.144f;
float uScale = DOTS_PER_METER;
float vScale = DOTS_PER_METER * EQUILATERAL_TRIANGLE_SCALE;
mPlaneAngleUvMatrix[0] = +(float)Math.Cos(angleRadians) * uScale;
mPlaneAngleUvMatrix[1] = -(float)Math.Sin(angleRadians) * uScale;
mPlaneAngleUvMatrix[2] = +(float)Math.Sin(angleRadians) * vScale;
mPlaneAngleUvMatrix[3] = +(float)Math.Cos(angleRadians) * vScale;
GLES20.GlUniformMatrix2fv(mPlaneUvMatrixUniform, 1, false, mPlaneAngleUvMatrix, 0);
Draw(cameraView, cameraPerspective);
}
// Clean up the state we set
GLES20.GlDisableVertexAttribArray(mPlaneXZPositionAlphaAttribute);
GLES20.GlBindTexture(GLES20.GlTexture2d, 0);
GLES20.GlDisable(GLES20.GlBlend);
GLES20.GlDepthMask(true);
ShaderUtil.CheckGLError(TAG, "Cleaning up after drawing planes");
}
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);
}
}
/**
* \brief Draw the video mesh /with keyframe and icons too) (in OpenGL).
* @param modelView the model-view matrix.
* @param projection the projection matrix.
*/
public void DrawMesh(float[] modelView, float[] projection)
{
PikkartVideoPlayer.VideoSate.VIDEO_STATE currentStatus = PikkartVideoPlayer.VideoSate.VIDEO_STATE.NOT_READY;
if (mPikkartVideoPlayer != null)
{
currentStatus = mPikkartVideoPlayer.getVideoStatus();
if (!mPikkartVideoPlayer.isFullscreen())
{
if (mPikkartVideoPlayer.getVideoStatus() == PikkartVideoPlayer.VideoSate.VIDEO_STATE.PLAYING)
{
mPikkartVideoPlayer.updateVideoData();
}
mPikkartVideoPlayer.getSurfaceTextureTransformMatrix(mTexCoordTransformationMatrix);
SetVideoDimensions(mPikkartVideoPlayer.getVideoWidth(), mPikkartVideoPlayer.getVideoHeight(), mTexCoordTransformationMatrix);
mVideoTexCoords_Buffer = FillBuffer(videoTextureCoordsTransformed);
}
}
Marker currentMarker = RecognitionFragment.CurrentMarker;
if (currentMarker != null)
{
float markerWidth = currentMarker.Width;
float markerHeight = currentMarker.Height;
GLES20.GlEnable(GLES20.GlDepthTest);
//GLES20.GlDisable(GLES20.GlCullFaceMode);
GLES20.GlCullFace(GLES20.GlBack);
GLES20.GlFrontFace(GLES20.GlCw);
if ((currentStatus == PikkartVideoPlayer.VideoSate.VIDEO_STATE.READY) ||
(currentStatus == PikkartVideoPlayer.VideoSate.VIDEO_STATE.END) ||
(currentStatus == PikkartVideoPlayer.VideoSate.VIDEO_STATE.NOT_READY) ||
(currentStatus == PikkartVideoPlayer.VideoSate.VIDEO_STATE.ERROR))
{
float[] scaleMatrix = new float[16];
RenderUtils.matrix44Identity(scaleMatrix);
scaleMatrix[0] = markerWidth;
scaleMatrix[5] = markerWidth * keyframeAspectRatio;
scaleMatrix[10] = markerWidth;
float[] temp_mv = new float[16];
RenderUtils.matrixMultiply(4, 4, modelView, 4, 4, scaleMatrix, temp_mv);
float[] temp_mvp = new float[16];
RenderUtils.matrixMultiply(4, 4, projection, 4, 4, temp_mv, temp_mvp);
float[] mvpMatrix = new float[16];
RenderUtils.matrix44Transpose(temp_mvp, mvpMatrix);
DrawKeyFrame(mvpMatrix);
}
else
{
float[] scaleMatrix = new float[16];
RenderUtils.matrix44Identity(scaleMatrix);
scaleMatrix[0] = markerWidth;
scaleMatrix[5] = markerWidth * videoAspectRatio;
scaleMatrix[10] = markerWidth;
float[] temp_mv = new float[16];
RenderUtils.matrixMultiply(4, 4, modelView, 4, 4, scaleMatrix, temp_mv);
float[] temp_mvp = new float[16];
RenderUtils.matrixMultiply(4, 4, projection, 4, 4, temp_mv, temp_mvp);
float[] mvpMatrix = new float[16];
RenderUtils.matrix44Transpose(temp_mvp, mvpMatrix);
DrawVideo(mvpMatrix);
}
if ((currentStatus == PikkartVideoPlayer.VideoSate.VIDEO_STATE.READY) ||
(currentStatus == PikkartVideoPlayer.VideoSate.VIDEO_STATE.END) ||
(currentStatus == PikkartVideoPlayer.VideoSate.VIDEO_STATE.PAUSED) ||
(currentStatus == PikkartVideoPlayer.VideoSate.VIDEO_STATE.NOT_READY) ||
(currentStatus == PikkartVideoPlayer.VideoSate.VIDEO_STATE.ERROR))
{
float[] translateMatrix = new float[16];
RenderUtils.matrix44Identity(translateMatrix);
//scale a bit
translateMatrix[0] = 0.4f;
translateMatrix[5] = 0.4f;
translateMatrix[10] = 0.4f;
//translate a bit
translateMatrix[3] = 0.0f;
translateMatrix[7] = 0.45f;
translateMatrix[11] = -0.05f;
float[] temp_mv = new float[16];
RenderUtils.matrixMultiply(4, 4, modelView, 4, 4, translateMatrix, temp_mv);
float[] temp_mvp = new float[16];
RenderUtils.matrixMultiply(4, 4, projection, 4, 4, temp_mv, temp_mvp);
float[] mvpMatrix = new float[16];
RenderUtils.matrix44Transpose(temp_mvp, mvpMatrix);
DrawIcon(mvpMatrix, currentStatus);
}
RenderUtils.CheckGLError("VideoMesh:end video renderer");
}
}
/**
* \brief Draw the video icon (in OpenGL).
* @param mvpMatrix the model-view-projection matrix.
* @param status the video state.
*/
private void DrawIcon(float[] mvpMatrix, PikkartVideoPlayer.VideoSate.VIDEO_STATE status)
{
GLES20.GlEnable(GLES20.GlBlend);
GLES20.GlBlendFunc(GLES20.GlSrcAlpha, GLES20.GlOneMinusSrcAlpha);
GLES20.GlUseProgram(mKeyframe_Program_GL_ID);
int vertexHandle = GLES20.GlGetAttribLocation(mKeyframe_Program_GL_ID, "vertexPosition");
int textureCoordHandle = GLES20.GlGetAttribLocation(mKeyframe_Program_GL_ID, "vertexTexCoord");
int mvpMatrixHandle = GLES20.GlGetUniformLocation(mKeyframe_Program_GL_ID, "modelViewProjectionMatrix");
int texSampler2DHandle = GLES20.GlGetUniformLocation(mKeyframe_Program_GL_ID, "texSampler2D");
GLES20.GlVertexAttribPointer(vertexHandle, 3, GLES20.GlFloat, false, 0, mVertices_Buffer);
GLES20.GlVertexAttribPointer(textureCoordHandle, 2, GLES20.GlFloat, false, 0, mTexCoords_Buffer);
GLES20.GlEnableVertexAttribArray(vertexHandle);
GLES20.GlEnableVertexAttribArray(textureCoordHandle);
GLES20.GlActiveTexture(GLES20.GlTexture0);
switch ((int)status)
{
case 0: //end
GLES20.GlBindTexture(GLES20.GlTexture2d, mIconPlayTexture_GL_ID);
break;
case 1: //pasued
GLES20.GlBindTexture(GLES20.GlTexture2d, mIconPlayTexture_GL_ID);
break;
case 2: //stopped
GLES20.GlBindTexture(GLES20.GlTexture2d, mIconPlayTexture_GL_ID);
break;
case 3: //playing
GLES20.GlBindTexture(GLES20.GlTexture2d, mIconPlayTexture_GL_ID);
break;
case 4: //ready
GLES20.GlBindTexture(GLES20.GlTexture2d, mIconPlayTexture_GL_ID);
break;
case 5: //not ready
GLES20.GlBindTexture(GLES20.GlTexture2d, mIconBusyTexture_GL_ID);
break;
case 6: //buffering
GLES20.GlBindTexture(GLES20.GlTexture2d, mIconBusyTexture_GL_ID);
break;
case 7: //error
GLES20.GlBindTexture(GLES20.GlTexture2d, mIconErrorTexture_GL_ID);
break;
default:
GLES20.GlBindTexture(GLES20.GlTexture2d, mIconBusyTexture_GL_ID);
break;
}
GLES20.GlUniform1i(texSampler2DHandle, 0);
GLES20.GlUniformMatrix4fv(mvpMatrixHandle, 1, false, mvpMatrix, 0);
GLES20.GlDrawElements(GLES20.GlTriangles, mIndices_Number, GLES20.GlUnsignedShort, mIndex_Buffer);
GLES20.GlDisableVertexAttribArray(vertexHandle);
GLES20.GlDisableVertexAttribArray(textureCoordHandle);
GLES20.GlUseProgram(0);
GLES20.GlDisable(GLES20.GlBlend);
}
private void drawAlpha(ShellSurface surface, GLSL glsl, bool alpha_test)
{
int max = surface.RenderLists.Count();
// draw alpha material
GLES20.GlEnable(GLES20.GlBlend);
for (int r = 0; r < max; r++)
{
var mat = surface.RenderLists[r];
TexInfo tb = null;
if (mat.material.texture != null)
{
tb = TextureFile.FetchTexInfo(mat.material.texture);
}
if (alpha_test)
{
if (tb != null && tb.needs_alpha_test)
{
if (mat.material.diffuse_color[3] < 1.0)
{
// GLES20.GlDisable(GLES20.GL_CULL_FACE);
GLES20.GlDisable(2884);
}
else
{
// GLES20.GlEnable(GLES20.GL_CULL_FACE);
GLES20.GlEnable(2884);
}
drawOneMaterial(glsl, surface, mat);
}
}
else
{
if (tb != null) // has texture
{
if (!tb.needs_alpha_test)
{
if (tb.has_alpha)
{
if (mat.material.diffuse_color[3] < 1.0)
{
// GLES20.GlDisable(GLES20.GL_CULL_FACE);
GLES20.GlDisable(2884);
}
else
{
// GLES20.GlEnable(GLES20.GL_CULL_FACE);
GLES20.GlEnable(2884);
}
drawOneMaterial(glsl, surface, mat);
}
else if (mat.material.diffuse_color[3] < 1.0)
{
// GLES20.GlDisable(GLES20.GL_CULL_FACE);
GLES20.GlDisable(2884);
drawOneMaterial(glsl, surface, mat);
}
}
}
else
{
if (mat.material.diffuse_color[3] < 1.0)
{
// GLES20.GlDisable(GLES20.GL_CULL_FACE);
GLES20.GlDisable(2884);
drawOneMaterial(glsl, surface, mat);
}
}
}
}
}
public void OnSurfaceCreated(IGL10 gl, Javax.Microedition.Khronos.Egl.EGLConfig config)
{
const float coord = 1.0f;
// Cube coords
// X, Y, Z = 1 vertex * 3 = 1 face * 12 = 1 cube
float[] triangleVerticesData =
{
-coord, -coord, -coord,
-coord, -coord, coord,
-coord, coord, coord,
coord, coord, -coord,
-coord, -coord, -coord,
-coord, coord, -coord,
coord, -coord, coord,
-coord, -coord, -coord,
coord, -coord, -coord,
coord, coord, -coord,
coord, -coord, -coord,
-coord, -coord, -coord,
-coord, -coord, -coord,
-coord, coord, coord,
-coord, coord, -coord,
coord, -coord, coord,
-coord, -coord, coord,
-coord, -coord, -coord,
-coord, coord, coord,
-coord, -coord, coord,
coord, -coord, coord,
coord, coord, coord,
coord, -coord, -coord,
coord, coord, -coord,
coord, -coord, -coord,
coord, coord, coord,
coord, -coord, coord,
coord, coord, coord,
coord, coord, -coord,
-coord, coord, -coord,
coord, coord, coord,
-coord, coord, -coord,
-coord, coord, coord,
coord, coord, coord,
-coord, coord, coord,
coord, -coord, coord
};
FloatBuffer mTriangleVertices = ByteBuffer.AllocateDirect(triangleVerticesData.Length * mBytesPerFloat).Order(ByteOrder.NativeOrder()).AsFloatBuffer();
mTriangleVertices.Put(triangleVerticesData).Flip();
// Cube colors
// R, G, B, A
float[] triangleColorsData =
{
1.0f, 0.0f, 0.0f, 0.5f,
0.0f, 0.5f, 1.0f, 1.0f,
0.0f, 1.0f, 0.0f, 1.0f,
1.0f, 0.0f, 0.0f, 0.5f,
0.0f, 0.5f, 1.0f, 1.0f,
0.0f, 1.0f, 0.0f, 1.0f,
1.0f, 0.0f, 0.0f, 0.5f,
0.0f, 0.5f, 1.0f, 1.0f,
0.0f, 1.0f, 0.0f, 1.0f,
1.0f, 0.0f, 0.0f, 0.5f,
0.0f, 0.5f, 1.0f, 1.0f,
0.0f, 1.0f, 0.0f, 1.0f,
1.0f, 0.0f, 0.0f, 0.5f,
0.0f, 0.5f, 1.0f, 1.0f,
0.0f, 1.0f, 0.0f, 1.0f,
1.0f, 0.0f, 0.0f, 0.5f,
0.0f, 0.5f, 1.0f, 1.0f,
0.0f, 1.0f, 0.0f, 1.0f,
1.0f, 0.0f, 0.0f, 0.5f,
0.0f, 0.5f, 1.0f, 1.0f,
0.0f, 1.0f, 0.0f, 1.0f,
1.0f, 0.0f, 0.0f, 0.5f,
0.0f, 0.5f, 1.0f, 1.0f,
0.0f, 1.0f, 0.0f, 1.0f,
1.0f, 0.0f, 0.0f, 0.5f,
0.0f, 0.5f, 1.0f, 1.0f,
0.0f, 1.0f, 0.0f, 1.0f,
1.0f, 0.0f, 0.0f, 0.5f,
0.0f, 0.5f, 1.0f, 1.0f,
0.0f, 1.0f, 0.0f, 1.0f,
1.0f, 0.0f, 0.0f, 0.5f,
0.0f, 0.5f, 1.0f, 1.0f,
0.0f, 1.0f, 0.0f, 1.0f,
1.0f, 0.0f, 0.0f, 0.5f,
0.0f, 0.5f, 1.0f, 1.0f,
0.0f, 1.0f, 0.0f, 1.0f
};
FloatBuffer mTriangleColors = ByteBuffer.AllocateDirect(triangleColorsData.Length * mBytesPerFloat).Order(ByteOrder.NativeOrder()).AsFloatBuffer();
mTriangleColors.Put(triangleColorsData).Flip();
//Cube texture UV Map
float[] triangleTextureUVMapData =
{
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 0.0f,
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 0.0f,
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 0.0f,
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 0.0f,
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 0.0f,
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 0.0f,
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 0.0f,
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 0.0f,
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 0.0f,
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 0.0f,
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 0.0f,
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 0.0f
};
FloatBuffer mTriangleTextureUVMap = ByteBuffer.AllocateDirect(triangleTextureUVMapData.Length * mBytesPerFloat).Order(ByteOrder.NativeOrder()).AsFloatBuffer();
mTriangleTextureUVMap.Put(triangleTextureUVMapData).Flip();
//triagles normals
//This normal array is not right, it is spacialy DO FOR demonstrate how normals work with faces when light is calculated at shader program
float[] triangleNormalData =
{
// Front face
0.0f, 0.0f, 1.0f,
0.0f, 0.0f, 1.0f,
0.0f, 0.0f, 1.0f,
1.0f, 0.0f, 0.0f,
1.0f, 0.0f, 0.0f,
1.0f, 0.0f, 0.0f,
// Right face
1.0f, 0.0f, 0.0f,
1.0f, 0.0f, 0.0f,
1.0f, 0.0f, 0.0f,
1.0f, 0.0f, 0.0f,
1.0f, 0.0f, 0.0f,
1.0f, 0.0f, 0.0f,
// Back face
0.0f, 0.0f, -1.0f,
0.0f, 0.0f, -1.0f,
0.0f, 0.0f, -1.0f,
0.0f, 0.0f, -1.0f,
0.0f, 0.0f, -1.0f,
0.0f, 0.0f, -1.0f,
// Left face
-1.0f, 0.0f, 0.0f,
-1.0f, 0.0f, 0.0f,
-1.0f, 0.0f, 0.0f,
-1.0f, 0.0f, 0.0f,
-1.0f, 0.0f, 0.0f,
-1.0f, 0.0f, 0.0f,
// Top face
0.0f, 1.0f, 0.0f,
0.0f, 1.0f, 0.0f,
0.0f, 1.0f, 0.0f,
0.0f, 1.0f, 0.0f,
0.0f, 1.0f, 0.0f,
0.0f, 1.0f, 0.0f,
// Bottom face
0.0f, -1.0f, 0.0f,
0.0f, -1.0f, 0.0f,
0.0f, -1.0f, 0.0f,
0.0f, -1.0f, 0.0f,
0.0f, -1.0f, 0.0f,
0.0f, -1.0f, 0.0f
};
FloatBuffer mTriangleNormal = ByteBuffer.AllocateDirect(triangleNormalData.Length * mBytesPerFloat).Order(ByteOrder.NativeOrder()).AsFloatBuffer();
mTriangleNormal.Put(triangleNormalData).Flip();
//Data buffers to VBO
GLES20.GlGenBuffers(4, VBOBuffers, 0); //2 buffers for vertices, texture and colors
GLES20.GlBindBuffer(GLES20.GlArrayBuffer, VBOBuffers[0]);
GLES20.GlBufferData(GLES20.GlArrayBuffer, mTriangleVertices.Capacity() * mBytesPerFloat, mTriangleVertices, GLES20.GlStaticDraw);
GLES20.GlBindBuffer(GLES20.GlArrayBuffer, VBOBuffers[1]);
GLES20.GlBufferData(GLES20.GlArrayBuffer, mTriangleColors.Capacity() * mBytesPerFloat, mTriangleColors, GLES20.GlStaticDraw);
GLES20.GlBindBuffer(GLES20.GlArrayBuffer, VBOBuffers[2]);
GLES20.GlBufferData(GLES20.GlArrayBuffer, mTriangleTextureUVMap.Capacity() * mBytesPerFloat, mTriangleTextureUVMap, GLES20.GlStaticDraw);
GLES20.GlBindBuffer(GLES20.GlArrayBuffer, VBOBuffers[3]);
GLES20.GlBufferData(GLES20.GlArrayBuffer, mTriangleNormal.Capacity() * mBytesPerFloat, mTriangleNormal, GLES20.GlStaticDraw);
GLES20.GlBindBuffer(GLES20.GlArrayBuffer, 0);
//Load and setup texture
GLES20.GlGenTextures(1, textureHandle, 0); //init 1 texture storage handle
if (textureHandle[0] != 0)
{
//Android.Graphics cose class Matrix exists at both Android.Graphics and Android.OpenGL and this is only sample of using
Android.Graphics.BitmapFactory.Options options = new Android.Graphics.BitmapFactory.Options();
options.InScaled = false; // No pre-scaling
Android.Graphics.Bitmap bitmap = Android.Graphics.BitmapFactory.DecodeResource(context.Resources, Resource.Drawable.texture1, options);
GLES20.GlBindTexture(GLES20.GlTexture2d, textureHandle[0]);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureMinFilter, GLES20.GlNearest);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureMagFilter, GLES20.GlNearest);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureWrapS, GLES20.GlClampToEdge);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureWrapT, GLES20.GlClampToEdge);
GLUtils.TexImage2D(GLES20.GlTexture2d, 0, bitmap, 0);
bitmap.Recycle();
}
//Ask android to run RAM garbage cleaner
System.GC.Collect();
//Setup OpenGL ES
GLES20.GlClearColor(0.0f, 0.0f, 0.0f, 0.0f);
// GLES20.GlEnable(GLES20.GlDepthTest); //uncoment if needs enabled dpeth test
GLES20.GlEnable(2884); // GlCullFace == 2884 see OpenGL documentation to this constant value
GLES20.GlCullFace(GLES20.GlBack);
// Position the eye behind the origin.
float eyeX = 0.0f;
float eyeY = 0.0f;
float eyeZ = 4.5f;
// We are looking toward the distance
float lookX = 0.0f;
float lookY = 0.0f;
float lookZ = -5.0f;
// Set our up vector. This is where our head would be pointing were we holding the camera.
float upX = 0.0f;
float upY = coord;
float upZ = 0.0f;
// Set the view matrix. This matrix can be said to represent the camera position.
// NOTE: In OpenGL 1, a ModelView matrix is used, which is a combination of a model and
// view matrix. In OpenGL 2, we can keep track of these matrices separately if we choose.
Matrix.SetLookAtM(mViewMatrix, 0, eyeX, eyeY, eyeZ, lookX, lookY, lookZ, upX, upY, upZ);
//all "attribute" variables is "triagles" VBO (arrays) items representation
//a_Possition[0] <=> a_Color[0] <=> a_TextureCoord[0] <=> a_Normal[0]
//a_Possition[1] <=> a_Color[1] <=> a_TextureCoord[1] <=> a_Normal[1]
//...
//a_Possition[n] <=> a_Color[n] <=> a_TextureCoord[n] <=> a_Normal[n] -- where "n" is object buffers length
//-> HOW MANY faces in your object (model) in VBO -> how many times the vertex shader will be called by OpenGL
string vertexShader =
"uniform mat4 u_MVPMatrix; \n" // A constant representing the combined model/view/projection matrix.
+ "uniform vec3 u_LightPos; \n" // A constant representing the light source position
+ "attribute vec4 a_Position; \n" // Per-vertex position information we will pass in. (it means vec4[x,y,z,w] but we put only x,y,z at this sample
+ "attribute vec4 a_Color; \n" // Per-vertex color information we will pass in.
+ "varying vec4 v_Color; \n" // This will be passed into the fragment shader.
+ "attribute vec2 a_TextureCoord; \n" // Per-vertex texture UVMap information we will pass in.
+ "varying vec2 v_TextureCoord; \n" // This will be passed into the fragment shader.
+ "attribute vec3 a_Normal; \n" // Per-vertex normals information we will pass in.
+ "void main() \n" // The entry point for our vertex shader.
+ "{ \n"
//light calculation section for fragment shader
+ " vec3 modelViewVertex = vec3(u_MVPMatrix * a_Position);\n"
+ " vec3 modelViewNormal = vec3(u_MVPMatrix * vec4(a_Normal, 0.0));\n"
+ " float distance = length(u_LightPos - modelViewVertex);\n"
+ " vec3 lightVector = normalize(u_LightPos - modelViewVertex);\n"
+ " float diffuse = max(dot(modelViewNormal, lightVector), 0.1);\n"
+ " diffuse = diffuse * (1.0 / (1.0 + (0.25 * distance * distance)));\n"
+ " v_Color = a_Color * vec4(diffuse);\n" //Pass the color with light aspect to fragment shader
+ " v_TextureCoord = a_TextureCoord; \n" // Pass the texture coordinate through to the fragment shader. It will be interpolated across the triangle.
+ " gl_Position = u_MVPMatrix \n" // gl_Position is a special variable used to store the final position.
+ " * a_Position; \n" // Multiply the vertex by the matrix to get the final point in normalized screen coordinates.
+ "} \n";
string fragmentShader =
"precision mediump float; \n" // Set the default precision to medium. We don't need as high of a
// precision in the fragment shader.
+ "varying vec4 v_Color; \n" // This is the color from the vertex shader interpolated across the triangle per fragment.
+ "varying vec2 v_TextureCoord; \n" // This is the texture coordinate from the vertex shader interpolated across the triangle per fragment.
+ "uniform sampler2D u_Texture; \n" // This is the texture image handler
+ "void main() \n" // The entry point for our fragment shader.
+ "{ \n"
+ " gl_FragColor = texture2D(u_Texture, v_TextureCoord) * v_Color; \n" // Pass the color directly through the pipeline.
+ "} \n";
int vertexShaderHandle = GLES20.GlCreateShader(GLES20.GlVertexShader);
if (vertexShaderHandle != 0)
{
// Pass in the shader source.
GLES20.GlShaderSource(vertexShaderHandle, vertexShader);
// Compile the shader.
GLES20.GlCompileShader(vertexShaderHandle);
// Get the compilation status.
int[] compileStatus = new int[1];
GLES20.GlGetShaderiv(vertexShaderHandle, GLES20.GlCompileStatus, compileStatus, 0);
// If the compilation failed, delete the shader.
if (compileStatus[0] == 0)
{
GLES20.GlDeleteShader(vertexShaderHandle);
vertexShaderHandle = 0;
}
}
if (vertexShaderHandle == 0)
{
throw new Exception("Error creating vertex shader.");
}
// Load in the fragment shader shader.
int fragmentShaderHandle = GLES20.GlCreateShader(GLES20.GlFragmentShader);
if (fragmentShaderHandle != 0)
{
// Pass in the shader source.
GLES20.GlShaderSource(fragmentShaderHandle, fragmentShader);
// Compile the shader.
GLES20.GlCompileShader(fragmentShaderHandle);
// Get the compilation status.
int[] compileStatus = new int[1];
GLES20.GlGetShaderiv(fragmentShaderHandle, GLES20.GlCompileStatus, compileStatus, 0);
// If the compilation failed, delete the shader.
if (compileStatus[0] == 0)
{
GLES20.GlDeleteShader(fragmentShaderHandle);
fragmentShaderHandle = 0;
}
}
if (fragmentShaderHandle == 0)
{
throw new Exception("Error creating fragment shader.");
}
// Create a program object and store the handle to it.
int programHandle = GLES20.GlCreateProgram();
if (programHandle != 0)
{
// Bind the vertex shader to the program.
GLES20.GlAttachShader(programHandle, vertexShaderHandle);
// Bind the fragment shader to the program.
GLES20.GlAttachShader(programHandle, fragmentShaderHandle);
// Bind attributes
GLES20.GlBindAttribLocation(programHandle, 0, "a_Position");
GLES20.GlBindAttribLocation(programHandle, 1, "a_Color");
GLES20.GlBindAttribLocation(programHandle, 2, "a_TextureCoord");
GLES20.GlBindAttribLocation(programHandle, 3, "a_Normal");
// Link the two shaders together into a program.
GLES20.GlLinkProgram(programHandle);
// Get the link status.
int[] linkStatus = new int[1];
GLES20.GlGetProgramiv(programHandle, GLES20.GlLinkStatus, linkStatus, 0);
// If the link failed, delete the program.
if (linkStatus[0] == 0)
{
GLES20.GlDeleteProgram(programHandle);
programHandle = 0;
}
}
if (programHandle == 0)
{
throw new Exception("Error creating program.");
}
// Set program handles. These will later be used to pass in values to the program.
mMVPMatrixHandle = GLES20.GlGetUniformLocation(programHandle, "u_MVPMatrix");
mLightPos = GLES20.GlGetUniformLocation(programHandle, "u_LightPos");
mPositionHandle = GLES20.GlGetAttribLocation(programHandle, "a_Position");
mColorHandle = GLES20.GlGetAttribLocation(programHandle, "a_Color");
mTextureCoordHandle = GLES20.GlGetAttribLocation(programHandle, "a_TextureCoord");
mNormalHandle = GLES20.GlGetAttribLocation(programHandle, "a_Normal");
mTextureHandle = GLES20.GlGetUniformLocation(programHandle, "u_Texture");
// Tell OpenGL to use this program when rendering.
GLES20.GlUseProgram(programHandle);
}
