class GLWidget(QGLWidget): clicked = pyqtSignal() PROGRAM_VERTEX_ATTRIBUTE, PROGRAM_TEXCOORD_ATTRIBUTE = range(2) vsrc = """ attribute highp vec4 vertex; attribute mediump vec4 texCoord; varying mediump vec4 texc; uniform mediump mat4 matrix; void main(void) { gl_Position = matrix * vertex; texc = texCoord; } """ fsrc = """ uniform sampler2D texture; varying mediump vec4 texc; void main(void) { gl_FragColor = texture2D(texture, texc.st); } """ coords = (((+1, -1, -1), (-1, -1, -1), (-1, +1, -1), (+1, +1, -1)), ((+1, +1, -1), (-1, +1, -1), (-1, +1, +1), (+1, +1, +1)), ((+1, -1, +1), (+1, -1, -1), (+1, +1, -1), (+1, +1, +1)), ((-1, -1, -1), (-1, -1, +1), (-1, +1, +1), (-1, +1, -1)), ((+1, -1, +1), (-1, -1, +1), (-1, -1, -1), (+1, -1, -1)), ((-1, -1, +1), (+1, -1, +1), (+1, +1, +1), (-1, +1, +1))) def __init__(self, parent=None, shareWidget=None): super(GLWidget, self).__init__(parent, shareWidget) self.clearColor = Qt.black self.xRot = 0 self.yRot = 0 self.zRot = 0 self.clearColor = QColor() self.lastPos = QPoint() self.program = None def minimumSizeHint(self): return QSize(50, 50) def sizeHint(self): return QSize(200, 200) def rotateBy(self, xAngle, yAngle, zAngle): self.xRot += xAngle self.yRot += yAngle self.zRot += zAngle self.updateGL() def setClearColor(self, color): self.clearColor = color self.updateGL() def initializeGL(self): self.makeObject() glEnable(GL_DEPTH_TEST) glEnable(GL_CULL_FACE) vshader = QOpenGLShader(QOpenGLShader.Vertex, self) vshader.compileSourceCode(self.vsrc) fshader = QOpenGLShader(QOpenGLShader.Fragment, self) fshader.compileSourceCode(self.fsrc) self.program = QOpenGLShaderProgram(self) self.program.addShader(vshader) self.program.addShader(fshader) self.program.bindAttributeLocation('vertex', self.PROGRAM_VERTEX_ATTRIBUTE) self.program.bindAttributeLocation('texCoord', self.PROGRAM_TEXCOORD_ATTRIBUTE) self.program.link() self.program.bind() self.program.setUniformValue('texture', 0) self.program.enableAttributeArray(self.PROGRAM_VERTEX_ATTRIBUTE) self.program.enableAttributeArray(self.PROGRAM_TEXCOORD_ATTRIBUTE) self.program.setAttributeArray(self.PROGRAM_VERTEX_ATTRIBUTE, self.vertices) self.program.setAttributeArray(self.PROGRAM_TEXCOORD_ATTRIBUTE, self.texCoords) def paintGL(self): self.qglClearColor(self.clearColor) glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT) m = QMatrix4x4() m.ortho(-0.5, 0.5, 0.5, -0.5, 4.0, 15.0) m.translate(0.0, 0.0, -10.0) m.rotate(self.xRot / 16.0, 1.0, 0.0, 0.0) m.rotate(self.yRot / 16.0, 0.0, 1.0, 0.0) m.rotate(self.zRot / 16.0, 0.0, 0.0, 1.0) self.program.setUniformValue('matrix', m) for i in range(6): glBindTexture(GL_TEXTURE_2D, self.textures[i]) glDrawArrays(GL_TRIANGLE_FAN, i * 4, 4) def resizeGL(self, width, height): side = min(width, height) glViewport((width - side) // 2, (height - side) // 2, side, side) def mousePressEvent(self, event): self.lastPos = event.pos() def mouseMoveEvent(self, event): dx = event.x() - self.lastPos.x() dy = event.y() - self.lastPos.y() if event.buttons() & Qt.LeftButton: self.rotateBy(8 * dy, 8 * dx, 0) elif event.buttons() & Qt.RightButton: self.rotateBy(8 * dy, 0, 8 * dx) self.lastPos = event.pos() def mouseReleaseEvent(self, event): self.clicked.emit() def makeObject(self): self.textures = [] self.texCoords = [] self.vertices = [] for i in range(6): self.textures.append( self.bindTexture(QPixmap(':/images/side%d.png' % (i + 1)))) for j in range(4): self.texCoords.append(((j == 0 or j == 3), (j == 0 or j == 1))) x, y, z = self.coords[i][j] self.vertices.append((0.2 * x, 0.2 * y, 0.2 * z))
class LogoRenderer(): #protected QOpenGLFunctions """docstring for LogoRenderer""" def __init__(self): super(LogoRenderer, self).__init__() self.m_fAngle = None self.m_fScale = None self.vertices = [] self.normals = [] self.program1 = QOpenGLShaderProgram() self.vertexAttr1 = 0 self.normalAttr1 = 0 self.matrixUniform1 = 0 ver = QOpenGLVersionProfile() ver.setVersion(2, 1) cntx = QOpenGLContext.currentContext() #print("QOpenGLContext:", cntx, ver) fmt = cntx.format() fmt.setVersion(2, 1) cntx.setFormat(fmt) self.gl = cntx.versionFunctions(ver) def render(self): self.gl.glDepthMask(True) self.gl.glClearColor(0.5, 0.5, 0.7, 1.0) self.gl.glClear(self.gl.GL_COLOR_BUFFER_BIT | self.gl.GL_DEPTH_BUFFER_BIT) self.gl.glTexParameteri(self.gl.GL_TEXTURE_2D, self.gl.GL_TEXTURE_MIN_FILTER, self.gl.GL_LINEAR) self.gl.glTexParameteri(self.gl.GL_TEXTURE_2D, self.gl.GL_TEXTURE_MAG_FILTER, self.gl.GL_LINEAR) self.gl.glFrontFace(self.gl.GL_CW) self.gl.glCullFace(self.gl.GL_FRONT) self.gl.glEnable(self.gl.GL_CULL_FACE) self.gl.glEnable(self.gl.GL_DEPTH_TEST) modelview = QMatrix4x4() modelview.rotate(self.m_fAngle, 0.0, 1.0, 0.0) modelview.rotate(self.m_fAngle, 1.0, 0.0, 0.0) modelview.rotate(self.m_fAngle, 0.0, 0.0, 1.0) modelview.scale(self.m_fScale) modelview.translate(0.0, -0.2, 0.0) self.program1.bind() self.program1.setUniformValue(self.matrixUniform1, modelview) self.paintQtLogo() self.program1.release() self.gl.glDisable(self.gl.GL_DEPTH_TEST) self.gl.glDisable(self.gl.GL_CULL_FACE) self.m_fAngle += 1.0 def initialize(self): #print("initialize.gls") self.gl.initializeOpenGLFunctions() self.gl.glClearColor(0.1, 0.1, 0.2, 1.0) vshader1 = QOpenGLShader(QOpenGLShader.Vertex, self.program1) vsrc1 = str("attribute highp vec4 vertex;\n" "attribute mediump vec3 normal;\n" "uniform mediump mat4 matrix;\n" "varying mediump vec4 color;\n" "void main(void)\n" "{\n" " vec3 toLight = normalize(vec3(0.0, 0.3, 1.0));\n" " float angle = max(dot(normal, toLight), 0.0);\n" " vec3 col = vec3(0.40, 1.0, 0.0);\n" " color = vec4(col * 0.2 + col * 0.8 * angle, 1.0);\n" " color = clamp(color, 0.0, 1.0);\n" " gl_Position = matrix * vertex;\n" "}\n") vshader1.compileSourceCode(vsrc1) fshader1 = QOpenGLShader(QOpenGLShader.Fragment, self.program1) fsrc1 = str("varying mediump vec4 color;\n" "void main(void)\n" "{\n" " gl_FragColor = color;\n" "}\n") fshader1.compileSourceCode(fsrc1) self.program1.addShader(vshader1) self.program1.addShader(fshader1) self.program1.link() self.vertexAttr1 = self.program1.attributeLocation("vertex") self.normalAttr1 = self.program1.attributeLocation("normal") self.matrixUniform1 = self.program1.uniformLocation("matrix") self.gl.glTexParameteri(self.gl.GL_TEXTURE_2D, self.gl.GL_TEXTURE_MIN_FILTER, self.gl.GL_LINEAR) self.gl.glTexParameteri(self.gl.GL_TEXTURE_2D, self.gl.GL_TEXTURE_MAG_FILTER, self.gl.GL_LINEAR) self.m_fAngle = 0 self.m_fScale = 1 self.createGeometry() def paintQtLogo(self): self.program1.enableAttributeArray(self.normalAttr1) self.program1.enableAttributeArray(self.vertexAttr1) self.program1.setAttributeArray(self.vertexAttr1, self.vertices) self.program1.setAttributeArray(self.normalAttr1, self.normals) self.gl.glDrawArrays(self.gl.GL_TRIANGLES, 0, len(self.vertices)) self.program1.disableAttributeArray(self.normalAttr1) self.program1.disableAttributeArray(self.vertexAttr1) def createGeometry(self): self.vertices.clear() self.normals.clear() x1 = +0.06 y1 = -0.14 x2 = +0.14 y2 = -0.06 x3 = +0.08 y3 = +0.00 x4 = +0.30 y4 = +0.22 self.quad(x1, y1, x2, y2, y2, x2, y1, x1) self.quad(x3, y3, x4, y4, y4, x4, y3, x3) self.extrude(x1, y1, x2, y2) self.extrude(x2, y2, y2, x2) self.extrude(y2, x2, y1, x1) self.extrude(y1, x1, x1, y1) self.extrude(x3, y3, x4, y4) self.extrude(x4, y4, y4, x4) self.extrude(y4, x4, y3, x3) NumSectors = 100 for i in range(NumSectors): angle1 = (i * 2 * math.pi) / NumSectors x5 = 0.30 * math.sin(angle1) y5 = 0.30 * math.cos(angle1) x6 = 0.20 * math.sin(angle1) y6 = 0.20 * math.cos(angle1) angle2 = ((i + 1) * 2 * math.pi) / NumSectors x7 = 0.20 * math.sin(angle2) y7 = 0.20 * math.cos(angle2) x8 = 0.30 * math.sin(angle2) y8 = 0.30 * math.cos(angle2) self.quad(x5, y5, x6, y6, x7, y7, x8, y8) self.extrude(x6, y6, x7, y7) self.extrude(x8, y8, x5, y5) for i in range(len(self.vertices)): self.vertices[i] *= 2.0 def quad(self, x1, y1, x2, y2, x3, y3, x4, y4): #print("quad inicio") self.vertices.append(QVector3D(x1, y1, -0.05)) self.vertices.append(QVector3D(x2, y2, -0.05)) self.vertices.append(QVector3D(x4, y4, -0.05)) self.vertices.append(QVector3D(x3, y3, -0.05)) self.vertices.append(QVector3D(x4, y4, -0.05)) self.vertices.append(QVector3D(x2, y2, -0.05)) n = QVector3D.normal(QVector3D(x2 - x1, y2 - y1, 0.0), QVector3D(x4 - x1, y4 - y1, 0.0)) for i in range(6): self.normals.append(n) self.vertices.append(QVector3D(x4, y4, 0.05)) self.vertices.append(QVector3D(x2, y2, 0.05)) self.vertices.append(QVector3D(x1, y1, 0.05)) self.vertices.append(QVector3D(x2, y2, 0.05)) self.vertices.append(QVector3D(x4, y4, 0.05)) self.vertices.append(QVector3D(x3, y3, 0.05)) n = QVector3D.normal(QVector3D(x2 - x4, y2 - y4, 0.0), QVector3D(x1 - x4, y1 - y4, 0.0)) for i in range(6): self.normals.append(n) #print("quad fin") def extrude(self, x1, y1, x2, y2): #print("extrude inicio") self.vertices.append(QVector3D(x1, y1, +0.05)) self.vertices.append(QVector3D(x2, y2, +0.05)) self.vertices.append(QVector3D(x1, y1, -0.05)) self.vertices.append(QVector3D(x2, y2, -0.05)) self.vertices.append(QVector3D(x1, y1, -0.05)) self.vertices.append(QVector3D(x2, y2, +0.05)) n = QVector3D.normal(QVector3D(x2 - x1, y2 - y1, 0.0), QVector3D(0.0, 0.0, -0.1)) for i in range(6): self.normals.append(n)
class GLWidget(QOpenGLWidget): clicked = pyqtSignal() PROGRAM_VERTEX_ATTRIBUTE, PROGRAM_TEXCOORD_ATTRIBUTE = range(2) vsrc = """ attribute highp vec4 vertex; attribute mediump vec4 texCoord; varying mediump vec4 texc; uniform mediump mat4 matrix; void main(void) { gl_Position = matrix * vertex; texc = texCoord; } """ fsrc = """ uniform sampler2D texture; varying mediump vec4 texc; void main(void) { gl_FragColor = texture2D(texture, texc.st); } """ coords = ( ((+1, -1, -1), (-1, -1, -1), (-1, +1, -1), (+1, +1, -1)), ((+1, +1, -1), (-1, +1, -1), (-1, +1, +1), (+1, +1, +1)), ((+1, -1, +1), (+1, -1, -1), (+1, +1, -1), (+1, +1, +1)), ((-1, -1, -1), (-1, -1, +1), (-1, +1, +1), (-1, +1, -1)), ((+1, -1, +1), (-1, -1, +1), (-1, -1, -1), (+1, -1, -1)), ((-1, -1, +1), (+1, -1, +1), (+1, +1, +1), (-1, +1, +1)), ) def __init__(self, parent=None): super(GLWidget, self).__init__(parent) self.clearColor = QColor(Qt.black) self.xRot = 0 self.yRot = 0 self.zRot = 0 self.program = None self.lastPos = QPoint() def minimumSizeHint(self): return QSize(50, 50) def sizeHint(self): return QSize(200, 200) def rotateBy(self, xAngle, yAngle, zAngle): self.xRot += xAngle self.yRot += yAngle self.zRot += zAngle self.update() def setClearColor(self, color): self.clearColor = color self.update() def initializeGL(self): version_profile = QOpenGLVersionProfile() version_profile.setVersion(2, 0) self.gl = self.context().versionFunctions(version_profile) self.gl.initializeOpenGLFunctions() self.makeObject() self.gl.glEnable(self.gl.GL_DEPTH_TEST) self.gl.glEnable(self.gl.GL_CULL_FACE) vshader = QOpenGLShader(QOpenGLShader.Vertex, self) vshader.compileSourceCode(self.vsrc) fshader = QOpenGLShader(QOpenGLShader.Fragment, self) fshader.compileSourceCode(self.fsrc) self.program = QOpenGLShaderProgram() self.program.addShader(vshader) self.program.addShader(fshader) self.program.bindAttributeLocation("vertex", self.PROGRAM_VERTEX_ATTRIBUTE) self.program.bindAttributeLocation("texCoord", self.PROGRAM_TEXCOORD_ATTRIBUTE) self.program.link() self.program.bind() self.program.setUniformValue("texture", 0) self.program.enableAttributeArray(self.PROGRAM_VERTEX_ATTRIBUTE) self.program.enableAttributeArray(self.PROGRAM_TEXCOORD_ATTRIBUTE) self.program.setAttributeArray(self.PROGRAM_VERTEX_ATTRIBUTE, self.vertices) self.program.setAttributeArray(self.PROGRAM_TEXCOORD_ATTRIBUTE, self.texCoords) def paintGL(self): self.gl.glClearColor( self.clearColor.redF(), self.clearColor.greenF(), self.clearColor.blueF(), self.clearColor.alphaF(), ) self.gl.glClear(self.gl.GL_COLOR_BUFFER_BIT | self.gl.GL_DEPTH_BUFFER_BIT) m = QMatrix4x4() m.ortho(-0.5, 0.5, 0.5, -0.5, 4.0, 15.0) m.translate(0.0, 0.0, -10.0) m.rotate(self.xRot / 16.0, 1.0, 0.0, 0.0) m.rotate(self.yRot / 16.0, 0.0, 1.0, 0.0) m.rotate(self.zRot / 16.0, 0.0, 0.0, 1.0) self.program.setUniformValue("matrix", m) for i, texture in enumerate(self.textures): texture.bind() self.gl.glDrawArrays(self.gl.GL_TRIANGLE_FAN, i * 4, 4) def resizeGL(self, width, height): side = min(width, height) self.gl.glViewport((width - side) // 2, (height - side) // 2, side, side) def mousePressEvent(self, event): self.lastPos = event.pos() def mouseMoveEvent(self, event): dx = event.x() - self.lastPos.x() dy = event.y() - self.lastPos.y() if event.buttons() & Qt.LeftButton: self.rotateBy(8 * dy, 8 * dx, 0) elif event.buttons() & Qt.RightButton: self.rotateBy(8 * dy, 0, 8 * dx) self.lastPos = event.pos() def mouseReleaseEvent(self, event): self.clicked.emit() def makeObject(self): self.textures = [] self.texCoords = [] self.vertices = [] root = QFileInfo(__file__).absolutePath() for i in range(6): self.textures.append( QOpenGLTexture( QImage(root + ("/images/side%d.png" % (i + 1))).mirrored())) for j in range(4): self.texCoords.append(((j == 0 or j == 3), (j == 0 or j == 1))) x, y, z = self.coords[i][j] self.vertices.append((0.2 * x, 0.2 * y, 0.2 * z))
class GLWidget(QOpenGLWidget): clicked = pyqtSignal() PROGRAM_VERTEX_ATTRIBUTE, PROGRAM_TEXCOORD_ATTRIBUTE = range(2) vsrc = """ attribute highp vec4 vertex; attribute mediump vec4 texCoord; varying mediump vec4 texc; uniform mediump mat4 matrix; void main(void) { gl_Position = matrix * vertex; texc = texCoord; } """ fsrc = """ uniform sampler2D texture; varying mediump vec4 texc; void main(void) { gl_FragColor = texture2D(texture, texc.st); } """ coords = (((+1, -1, -1), (-1, -1, -1), (-1, +1, -1), (+1, +1, -1)), ((+1, +1, -1), (-1, +1, -1), (-1, +1, +1), (+1, +1, +1)), ((+1, -1, +1), (+1, -1, -1), (+1, +1, -1), (+1, +1, +1)), ((-1, -1, -1), (-1, -1, +1), (-1, +1, +1), (-1, +1, -1)), ((+1, -1, +1), (-1, -1, +1), (-1, -1, -1), (+1, -1, -1)), ((-1, -1, +1), (+1, -1, +1), (+1, +1, +1), (-1, +1, +1))) def __init__(self, parent=None): super(GLWidget, self).__init__(parent) self.clearColor = QColor(Qt.black) self.xRot = 0 self.yRot = 0 self.zRot = 0 self.program = None self.lastPos = QPoint() def minimumSizeHint(self): """ Define the minimum size of the widget """ return QSize(50, 50) def sizeHint(self): """ Define a default size for the widget """ return QSize(200, 200) def rotateBy(self, xAngle, yAngle, zAngle): self.xRot += xAngle self.yRot += yAngle self.zRot += zAngle self.update() def setClearColor(self, color): self.clearColor = color self.update() def initializeGL(self): self.gl = self.context().versionFunctions() self.gl.initializeOpenGLFunctions() self.makeObject() self.gl.glEnable(self.gl.GL_DEPTH_TEST) self.gl.glEnable(self.gl.GL_CULL_FACE) vshader = QOpenGLShader(QOpenGLShader.Vertex, self) vshader.compileSourceCode(self.vsrc) fshader = QOpenGLShader(QOpenGLShader.Fragment, self) fshader.compileSourceCode(self.fsrc) self.program = QOpenGLShaderProgram() self.program.addShader(vshader) self.program.addShader(fshader) self.program.bindAttributeLocation('vertex', self.PROGRAM_VERTEX_ATTRIBUTE) self.program.bindAttributeLocation('texCoord', self.PROGRAM_TEXCOORD_ATTRIBUTE) self.program.link() self.program.bind() self.program.setUniformValue('texture', 0) self.program.enableAttributeArray(self.PROGRAM_VERTEX_ATTRIBUTE) self.program.enableAttributeArray(self.PROGRAM_TEXCOORD_ATTRIBUTE) self.program.setAttributeArray(self.PROGRAM_VERTEX_ATTRIBUTE, self.vertices) self.program.setAttributeArray(self.PROGRAM_TEXCOORD_ATTRIBUTE, self.texCoords) def paintGL(self): self.gl.glClearColor(self.clearColor.redF(), self.clearColor.greenF(), self.clearColor.blueF(), self.clearColor.alphaF()) self.gl.glClear(self.gl.GL_COLOR_BUFFER_BIT | self.gl.GL_DEPTH_BUFFER_BIT) m = QMatrix4x4() m.ortho(-0.5, 0.5, 0.5, -0.5, 4.0, 15.0) m.translate(0.0, 0.0, -10.0) self.program.setUniformValue('matrix', m) self.texture.bind() self.gl.glDrawArrays(self.gl.GL_TRIANGLE_FAN, 0, 4) def resizeGL(self, width, height): side = min(width, height) self.gl.glViewport((width - side) // 2, (height - side) // 2, side, side) def makeObject(self): self.texCoords = [(True, True), (False, True), (False, False), (True, False)] self.vertices = [(0.5, -0.5, -0.5), (-0.5, -0.5, -0.5), (-0.5, 0.5, -0.5), (0.5, 0.5, -0.5)] my_movie = QImage('/Users/reno/Dropbox/media/cloudy.png') self.texture = QOpenGLTexture(my_movie.mirrored())
class GLWidget(QOpenGLWidget): clicked = pyqtSignal() PROGRAM_VERTEX_ATTRIBUTE, PROGRAM_TEXCOORD_ATTRIBUTE = range(2) vsrc = """ attribute highp vec4 vertex; attribute mediump vec4 texCoord; varying mediump vec4 texc; uniform mediump mat4 matrix; void main(void) { gl_Position = matrix * vertex; texc = texCoord; } """ fsrc = """ uniform sampler2D texture; varying mediump vec4 texc; void main(void) { gl_FragColor = texture2D(texture, texc.st); } """ coords = ( (( +1, -1, -1 ), ( -1, -1, -1 ), ( -1, +1, -1 ), ( +1, +1, -1 )), (( +1, +1, -1 ), ( -1, +1, -1 ), ( -1, +1, +1 ), ( +1, +1, +1 )), (( +1, -1, +1 ), ( +1, -1, -1 ), ( +1, +1, -1 ), ( +1, +1, +1 )), (( -1, -1, -1 ), ( -1, -1, +1 ), ( -1, +1, +1 ), ( -1, +1, -1 )), (( +1, -1, +1 ), ( -1, -1, +1 ), ( -1, -1, -1 ), ( +1, -1, -1 )), (( -1, -1, +1 ), ( +1, -1, +1 ), ( +1, +1, +1 ), ( -1, +1, +1 )) ) def __init__(self, parent=None): super(GLWidget, self).__init__(parent) self.clearColor = QColor(Qt.black) self.xRot = 0 self.yRot = 0 self.zRot = 0 self.program = None self.lastPos = QPoint() def minimumSizeHint(self): return QSize(50, 50) def sizeHint(self): return QSize(200, 200) def rotateBy(self, xAngle, yAngle, zAngle): self.xRot += xAngle self.yRot += yAngle self.zRot += zAngle self.update() def setClearColor(self, color): self.clearColor = color self.update() def initializeGL(self): self.gl = self.context().versionFunctions() self.gl.initializeOpenGLFunctions() self.makeObject() self.gl.glEnable(self.gl.GL_DEPTH_TEST) self.gl.glEnable(self.gl.GL_CULL_FACE) vshader = QOpenGLShader(QOpenGLShader.Vertex, self) vshader.compileSourceCode(self.vsrc) fshader = QOpenGLShader(QOpenGLShader.Fragment, self) fshader.compileSourceCode(self.fsrc) self.program = QOpenGLShaderProgram() self.program.addShader(vshader) self.program.addShader(fshader) self.program.bindAttributeLocation('vertex', self.PROGRAM_VERTEX_ATTRIBUTE) self.program.bindAttributeLocation('texCoord', self.PROGRAM_TEXCOORD_ATTRIBUTE) self.program.link() self.program.bind() self.program.setUniformValue('texture', 0) self.program.enableAttributeArray(self.PROGRAM_VERTEX_ATTRIBUTE) self.program.enableAttributeArray(self.PROGRAM_TEXCOORD_ATTRIBUTE) self.program.setAttributeArray(self.PROGRAM_VERTEX_ATTRIBUTE, self.vertices) self.program.setAttributeArray(self.PROGRAM_TEXCOORD_ATTRIBUTE, self.texCoords) def paintGL(self): self.gl.glClearColor(self.clearColor.redF(), self.clearColor.greenF(), self.clearColor.blueF(), self.clearColor.alphaF()) self.gl.glClear( self.gl.GL_COLOR_BUFFER_BIT | self.gl.GL_DEPTH_BUFFER_BIT) m = QMatrix4x4() m.ortho(-0.5, 0.5, 0.5, -0.5, 4.0, 15.0) m.translate(0.0, 0.0, -10.0) m.rotate(self.xRot / 16.0, 1.0, 0.0, 0.0) m.rotate(self.yRot / 16.0, 0.0, 1.0, 0.0) m.rotate(self.zRot / 16.0, 0.0, 0.0, 1.0) self.program.setUniformValue('matrix', m) for i, texture in enumerate(self.textures): texture.bind() self.gl.glDrawArrays(self.gl.GL_TRIANGLE_FAN, i * 4, 4) def resizeGL(self, width, height): side = min(width, height) self.gl.glViewport((width - side) // 2, (height - side) // 2, side, side) def mousePressEvent(self, event): self.lastPos = event.pos() def mouseMoveEvent(self, event): dx = event.x() - self.lastPos.x() dy = event.y() - self.lastPos.y() if event.buttons() & Qt.LeftButton: self.rotateBy(8 * dy, 8 * dx, 0) elif event.buttons() & Qt.RightButton: self.rotateBy(8 * dy, 0, 8 * dx) self.lastPos = event.pos() def mouseReleaseEvent(self, event): self.clicked.emit() def makeObject(self): self.textures = [] self.texCoords = [] self.vertices = [] root = QFileInfo(__file__).absolutePath() for i in range(6): self.textures.append( QOpenGLTexture( QImage(root + ('/images/side%d.png' % (i + 1))).mirrored())) for j in range(4): self.texCoords.append(((j == 0 or j == 3), (j == 0 or j == 1))) x, y, z = self.coords[i][j] self.vertices.append((0.2 * x, 0.2 * y, 0.2 * z))
class LogoRenderer():#protected QOpenGLFunctions """docstring for LogoRenderer""" def __init__(self): super(LogoRenderer, self).__init__() self.m_fAngle = None self.m_fScale = None self.vertices = [] self.normals = [] self.program1 = QOpenGLShaderProgram() self.vertexAttr1 = 0 self.normalAttr1 = 0 self.matrixUniform1 = 0 ver = QOpenGLVersionProfile() ver.setVersion(2, 1) cntx = QOpenGLContext.currentContext() #print("QOpenGLContext:", cntx, ver) fmt = cntx.format() fmt.setVersion(2, 1) cntx.setFormat(fmt) self.gl = cntx.versionFunctions(ver) def render(self): self.gl.glDepthMask(True) self.gl.glClearColor(0.5, 0.5, 0.7, 1.0) self.gl.glClear(self.gl.GL_COLOR_BUFFER_BIT | self.gl.GL_DEPTH_BUFFER_BIT) self.gl.glTexParameteri(self.gl.GL_TEXTURE_2D, self.gl.GL_TEXTURE_MIN_FILTER, self.gl.GL_LINEAR ) self.gl.glTexParameteri(self.gl.GL_TEXTURE_2D, self.gl.GL_TEXTURE_MAG_FILTER, self.gl.GL_LINEAR ) self.gl.glFrontFace(self.gl.GL_CW) self.gl.glCullFace(self.gl.GL_FRONT) self.gl.glEnable(self.gl.GL_CULL_FACE) self.gl.glEnable(self.gl.GL_DEPTH_TEST) modelview = QMatrix4x4() modelview.rotate(self.m_fAngle, 0.0, 1.0, 0.0) modelview.rotate(self.m_fAngle, 1.0, 0.0, 0.0) modelview.rotate(self.m_fAngle, 0.0, 0.0, 1.0) modelview.scale(self.m_fScale) modelview.translate(0.0, -0.2, 0.0) self.program1.bind() self.program1.setUniformValue(self.matrixUniform1, modelview) self.paintQtLogo() self.program1.release() self.gl.glDisable(self.gl.GL_DEPTH_TEST) self.gl.glDisable(self.gl.GL_CULL_FACE) self.m_fAngle += 1.0 def initialize(self): #print("initialize.gls") self.gl.initializeOpenGLFunctions() self.gl.glClearColor(0.1, 0.1, 0.2, 1.0) vshader1 = QOpenGLShader(QOpenGLShader.Vertex, self.program1) vsrc1 = str("attribute highp vec4 vertex;\n" "attribute mediump vec3 normal;\n" "uniform mediump mat4 matrix;\n" "varying mediump vec4 color;\n" "void main(void)\n" "{\n" " vec3 toLight = normalize(vec3(0.0, 0.3, 1.0));\n" " float angle = max(dot(normal, toLight), 0.0);\n" " vec3 col = vec3(0.40, 1.0, 0.0);\n" " color = vec4(col * 0.2 + col * 0.8 * angle, 1.0);\n" " color = clamp(color, 0.0, 1.0);\n" " gl_Position = matrix * vertex;\n" "}\n") vshader1.compileSourceCode(vsrc1) fshader1 = QOpenGLShader(QOpenGLShader.Fragment, self.program1) fsrc1 = str("varying mediump vec4 color;\n" "void main(void)\n" "{\n" " gl_FragColor = color;\n" "}\n") fshader1.compileSourceCode(fsrc1) self.program1.addShader(vshader1) self.program1.addShader(fshader1) self.program1.link() self.vertexAttr1 = self.program1.attributeLocation("vertex") self.normalAttr1 = self.program1.attributeLocation("normal") self.matrixUniform1 = self.program1.uniformLocation("matrix") self.gl.glTexParameteri(self.gl.GL_TEXTURE_2D, self.gl.GL_TEXTURE_MIN_FILTER, self.gl.GL_LINEAR ) self.gl.glTexParameteri(self.gl.GL_TEXTURE_2D, self.gl.GL_TEXTURE_MAG_FILTER, self.gl.GL_LINEAR ) self.m_fAngle = 0 self.m_fScale = 1 self.createGeometry() def paintQtLogo(self): self.program1.enableAttributeArray(self.normalAttr1) self.program1.enableAttributeArray(self.vertexAttr1) self.program1.setAttributeArray(self.vertexAttr1, self.vertices) self.program1.setAttributeArray(self.normalAttr1, self.normals) self.gl.glDrawArrays(self.gl.GL_TRIANGLES, 0, len(self.vertices)) self.program1.disableAttributeArray(self.normalAttr1) self.program1.disableAttributeArray(self.vertexAttr1) def createGeometry(self): self.vertices.clear() self.normals.clear() x1 = +0.06 y1 = -0.14 x2 = +0.14 y2 = -0.06 x3 = +0.08 y3 = +0.00 x4 = +0.30 y4 = +0.22 self.quad(x1, y1, x2, y2, y2, x2, y1, x1) self.quad(x3, y3, x4, y4, y4, x4, y3, x3) self.extrude(x1, y1, x2, y2) self.extrude(x2, y2, y2, x2) self.extrude(y2, x2, y1, x1) self.extrude(y1, x1, x1, y1) self.extrude(x3, y3, x4, y4) self.extrude(x4, y4, y4, x4) self.extrude(y4, x4, y3, x3) NumSectors = 100 for i in range(NumSectors): angle1 = (i * 2 * math.pi) / NumSectors x5 = 0.30 * math.sin(angle1) y5 = 0.30 * math.cos(angle1) x6 = 0.20 * math.sin(angle1) y6 = 0.20 * math.cos(angle1) angle2 = ((i + 1) * 2 * math.pi) / NumSectors x7 = 0.20 * math.sin(angle2) y7 = 0.20 * math.cos(angle2) x8 = 0.30 * math.sin(angle2) y8 = 0.30 * math.cos(angle2) self.quad(x5, y5, x6, y6, x7, y7, x8, y8) self.extrude(x6, y6, x7, y7) self.extrude(x8, y8, x5, y5) for i in range(len(self.vertices)): self.vertices[i] *= 2.0 def quad(self, x1, y1, x2, y2, x3, y3, x4, y4): #print("quad inicio") self.vertices.append(QVector3D(x1, y1, -0.05)) self.vertices.append(QVector3D(x2, y2, -0.05)) self.vertices.append(QVector3D(x4, y4, -0.05)) self.vertices.append(QVector3D(x3, y3, -0.05)) self.vertices.append(QVector3D(x4, y4, -0.05)) self.vertices.append(QVector3D(x2, y2, -0.05)) n = QVector3D.normal(QVector3D(x2 - x1, y2 - y1, 0.0), QVector3D(x4 - x1, y4 - y1, 0.0)) for i in range(6): self.normals.append(n) self.vertices.append(QVector3D(x4, y4, 0.05)) self.vertices.append(QVector3D(x2, y2, 0.05)) self.vertices.append(QVector3D(x1, y1, 0.05)) self.vertices.append(QVector3D(x2, y2, 0.05)) self.vertices.append(QVector3D(x4, y4, 0.05)) self.vertices.append(QVector3D(x3, y3, 0.05)) n = QVector3D.normal(QVector3D(x2 - x4, y2 - y4, 0.0), QVector3D(x1 - x4, y1 - y4, 0.0)) for i in range(6): self.normals.append(n) #print("quad fin") def extrude(self, x1, y1, x2, y2): #print("extrude inicio") self.vertices.append(QVector3D(x1, y1, +0.05)) self.vertices.append(QVector3D(x2, y2, +0.05)) self.vertices.append(QVector3D(x1, y1, -0.05)) self.vertices.append(QVector3D(x2, y2, -0.05)) self.vertices.append(QVector3D(x1, y1, -0.05)) self.vertices.append(QVector3D(x2, y2, +0.05)) n = QVector3D.normal(QVector3D(x2 - x1, y2 - y1, 0.0), QVector3D(0.0, 0.0, -0.1)) for i in range(6): self.normals.append(n)