class SquareObject(QObject):
def __init__(self, parent=None):
super(SquareObject, self).__init__(parent=parent)
self.initialize_shader_program()
self.initialize_geometry()
self.initialize_geometry_on_gpu()
self.initialize_texture_on_gpu()
def destroy(self):
self.vao.release()
self.vao.destroy()
self.vbo.release()
self.vbo.destroy()
self.ebo.release()
self.ebo.destroy()
self.texture0.release()
self.texture0.destroy()
self.texture1.release()
self.texture1.destroy()
def initialize_shader_program(self):
self.vertex_shader = """
#version 330 core
layout (location = 0) in vec3 in_coords;
layout (location = 1) in vec3 in_color;
layout (location = 2) in vec2 in_tex_coords;
uniform mat4 transform;
out vec3 out_color;
out vec2 out_tex_coords;
void main()
{
gl_Position = transform * vec4(in_coords, 1.0);
out_color = in_color;
out_tex_coords = vec2(in_tex_coords.x, in_tex_coords.y);
}
"""
self.fragment_shader = """
#version 330 core
in vec3 out_color;
in vec2 out_tex_coords;
out vec4 frag_color;
uniform sampler2D texture0;
uniform sampler2D texture1;
void main()
{
if (out_tex_coords.x > 0.5)
frag_color = texture(texture0, out_tex_coords);
else
frag_color = texture(texture1, out_tex_coords);
//frag_color = mix(texture(texture0, out_tex_coords),
// texture(texture1, out_tex_coords), 0.5)
// * vec4(out_color, 1.0);
}
"""
self.arg_pos = {
'in_coords': 0,
'in_color': 1,
'in_tex_coords': 2,
'out_color': 0
}
self.program = QOpenGLShaderProgram(parent=self.parent())
self.program.addCacheableShaderFromSourceCode(QOpenGLShader.Vertex,
self.vertex_shader)
self.program.addCacheableShaderFromSourceCode(QOpenGLShader.Fragment,
self.fragment_shader)
self.program.link()
self.program.bind()
def initialize_geometry(self):
self.vertices = np.array(
[
# coords color texture coords
[0.5, -0.5, 0.0, 0.0, 1.0, 0.0, 1.0, 0.0], # bottom-right
[0.5, 0.5, 0.0, 1.0, 0.0, 0.0, 1.0, 1.0], # top-right
[-0.5, 0.5, 0.0, 1.0, 1.0, 0.0, 0.0, 1.0], # top-let
[-0.5, -0.5, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0] # bottom-let
],
dtype=np.float32)
self.triangles = np.array([[0, 1, 2], [2, 3, 0]], dtype=np.int32)
def initialize_geometry_on_gpu(self):
self.vao = QOpenGLVertexArrayObject(self.parent())
if not self.vao.create():
raise ValueError('Could not create VAO')
self.vao.bind()
self.vbo = QOpenGLBuffer(QOpenGLBuffer.VertexBuffer)
if not self.vbo.create():
raise ValueError('Could not create VBO')
self.vbo.bind()
self.vbo.setUsagePattern(QOpenGLBuffer.StaticDraw)
vertices_data = self.vertices.tostring()
self.vbo.allocate(len(vertices_data))
self.vbo.write(0, vertices_data, len(vertices_data))
self.ebo = QOpenGLBuffer(QOpenGLBuffer.IndexBuffer)
if not self.ebo.create():
raise ValueError('Could not create EBO')
self.ebo.bind()
self.ebo.setUsagePattern(QOpenGLBuffer.StaticDraw)
triangles_data = self.triangles.tostring()
self.ebo.allocate(len(triangles_data))
self.ebo.write(0, triangles_data, len(triangles_data))
self.program.enableAttributeArray(self.arg_pos['in_coords'])
self.program.setAttributeBuffer(
self.arg_pos['in_coords'], gl.GL_FLOAT, 0, 3,
self.vertices.shape[1] * self.vertices.dtype.itemsize)
self.program.enableAttributeArray(self.arg_pos['in_color'])
self.program.setAttributeBuffer(
self.arg_pos['in_color'], gl.GL_FLOAT,
3 * self.vertices.dtype.itemsize, 3,
self.vertices.shape[1] * self.vertices.dtype.itemsize)
self.program.enableAttributeArray(self.arg_pos['in_tex_coords'])
self.program.setAttributeBuffer(
self.arg_pos['in_tex_coords'], gl.GL_FLOAT,
6 * self.vertices.dtype.itemsize, 2,
self.vertices.shape[1] * self.vertices.dtype.itemsize)
self.vao.release()
self.vbo.release()
self.ebo.release()
def initialize_texture_on_gpu(self):
# Texture 0.
image0 = QImage(path.join(DATA_DIR, 'ksmall.jpg')).mirrored()
self.texture0 = QOpenGLTexture(image0)
self.texture0.setMinificationFilter(QOpenGLTexture.LinearMipMapLinear)
self.texture0.setMagnificationFilter(QOpenGLTexture.Linear)
self.texture0.setWrapMode(QOpenGLTexture.Repeat)
self.texture0.bind(0)
self.program.setUniformValue(self.program.uniformLocation('texture0'),
0)
# Texture 1.
image1 = QImage(path.join(DATA_DIR, 'sunflowerField.jpg')).mirrored()
self.texture1 = QOpenGLTexture(image1)
self.texture1.setMinificationFilter(QOpenGLTexture.LinearMipMapLinear)
self.texture1.setMagnificationFilter(QOpenGLTexture.Linear)
self.texture1.setWrapMode(QOpenGLTexture.Repeat)
self.texture1.bind(1)
self.program.setUniformValue(self.program.uniformLocation('texture1'),
1)
def render(self, transform):
self.program.bind()
self.program.setUniformValue('transform', transform)
self.vao.bind()
gl.glDrawElements(gl.GL_TRIANGLES, self.triangles.size,
gl.GL_UNSIGNED_INT, None)
self.program.release()
class Viewport(View, QOpenGLWidget):
def __init__(self,
scene,
updateFpsDisplay,
renderSettings=Rendersettings(),
parent=None):
View.__init__(self, scene)
QOpenGLWidget.__init__(self, parent)
self.renderImage = QImage()
self.renderSettings = renderSettings
self.updateFpsDisplay = updateFpsDisplay
self.shaderProgram = QOpenGLShaderProgram()
self.viewPortShaderProgram = QOpenGLShaderProgram()
self.lightShaderProgram = QOpenGLShaderProgram()
self.eyeLoc = QVector3D(0.0, 0.0, 5.0)
self.pressLoc = QVector2D()
self.isRendering = False
self.viewportPlane = ViewportPlane()
self.viewportTexture = None
self.timer = QTimer()
self.timer.setSingleShot(True)
self.timer.timeout.connect(self.checkRender)
self.scene.registerView(self, [
UpdateType.MATERIAL_CHANGE, UpdateType.MATERIAL_CREATE,
UpdateType.MATERIAL_DELETE, UpdateType.OBJECT_CREATE,
UpdateType.OBJECT_DELETE, UpdateType.OBJECT_TRANSFORM,
UpdateType.CAMERA_CHANGE, UpdateType.LIGHT_CHANGE,
UpdateType.SCENE_LOAD
])
self.timestamps = None
self.fpsWindow = 10
self.renderer = None
self.renderStartTime = None
def initializeGL(self):
self.glFunctions = self.context().functions()
self.glFunctions.glEnable(GL.GL_DEPTH_TEST)
self.glFunctions.glEnable(GL.GL_CULL_FACE)
self.glFunctions.glClearColor(0.15, 0.25, 0.3, 1.0)
vertSuccess = self.shaderProgram.addShaderFromSourceFile(
QOpenGLShader.Vertex, "editor/ui/shaders/vertex.vert")
fragSuccess = self.shaderProgram.addShaderFromSourceFile(
QOpenGLShader.Fragment, "editor/ui/shaders/fragment.frag")
print("Vertex shader compilation {}".format(
"successful" if vertSuccess else "failed"))
print("Fragment shader compilation {}".format(
"successful" if fragSuccess else "failed"))
print("Program linking {}".format(
"successful" if self.shaderProgram.link() else "failed"))
vertSuccess = self.viewPortShaderProgram.addShaderFromSourceFile(
QOpenGLShader.Vertex, "editor/ui/shaders/viewportvertex.vert")
fragSuccess = self.viewPortShaderProgram.addShaderFromSourceFile(
QOpenGLShader.Fragment, "editor/ui/shaders/viewportfragment.frag")
print("Viewport vertex shader compilation {}".format(
"successful" if vertSuccess else "failed"))
print("Viewport fragment shader compilation {}".format(
"successful" if fragSuccess else "failed"))
print("Viewport program linking {}".format(
"successful" if self.viewPortShaderProgram.link() else "failed"))
vertSuccess = self.lightShaderProgram.addShaderFromSourceFile(
QOpenGLShader.Vertex, "editor/ui/shaders/vertex.vert")
fragSuccess = self.lightShaderProgram.addShaderFromSourceFile(
QOpenGLShader.Fragment, "editor/ui/shaders/lightfragment.frag")
print("Light vertex shader compilation {}".format(
"successful" if vertSuccess else "failed"))
print("Light fragment shader compilation {}".format(
"successful" if fragSuccess else "failed"))
print("Light program linking {}".format(
"successful" if self.viewPortShaderProgram.link() else "failed"))
self.shaderProgram.release()
self.viewPortShaderProgram.release()
# Call all drawable Objects initGL
for c in drawableClasses:
if isinstance(c, ViewportPlane):
c.initGL(self.viewPortShaderProgram)
else:
c.initGL(self.shaderProgram)
def resizeGL(self, w, h):
self.scene.getCamera().setAspect(w, h)
if self.viewportTexture and self.context().isValid():
self.viewportTexture.destroy()
if self.context().isValid():
self.renderImage = QImage(w, h, QImage.Format_RGB32)
self.renderImage.fill(Qt.black)
self.viewportTexture = QOpenGLTexture(QOpenGLTexture.Target2D)
self.viewportTexture.setSize(w, h)
self.viewportTexture.setBorderColor(0, 0, 0, 255)
self.viewportTexture.setWrapMode(QOpenGLTexture.ClampToBorder)
self.viewportTexture.setMinificationFilter(QOpenGLTexture.Nearest)
self.viewportTexture.setMagnificationFilter(QOpenGLTexture.Nearest)
self.viewportTexture.setData(self.renderImage,
QOpenGLTexture.DontGenerateMipMaps)
self.updateRenderResolution(w, h)
def paintGL(self):
self.glFunctions.glClear(GL.GL_COLOR_BUFFER_BIT
| GL.GL_DEPTH_BUFFER_BIT)
if not self.isRendering:
self.shaderProgram.bind()
self.shaderProgram.setUniformValue(
"eyePos",
self.scene.getCamera().getTranslation())
self.shaderProgram.release()
for obj in self.scene.getObjectIterator():
if isinstance(obj, Light):
obj.draw(self.lightShaderProgram, self.glFunctions)
else:
obj.draw(self.shaderProgram, self.glFunctions)
else:
self.viewportTexture.bind()
self.viewportPlane.draw(self.viewPortShaderProgram,
self.glFunctions)
self.viewportTexture.release()
def mousePressEvent(self, e):
self.pressLoc = QVector2D(e.localPos())
super().mousePressEvent(e)
def mouseMoveEvent(self, e):
if e.buttons() == Qt.LeftButton:
currPos = QVector2D(e.localPos())
diff = currPos - self.pressLoc
diff *= 0.5
self.pressLoc = currPos
self.scene.getCamera().rotate(diff.x(), diff.y())
def wheelEvent(self, e):
if e.modifiers() == Qt.ShiftModifier:
self.scene.getCamera().zoom(-e.angleDelta().y() / 45.0)
else:
self.scene.getCamera().track(-e.angleDelta().y() / 600.0)
def notify(self, updateType):
if updateType == UpdateType.SCENE_LOAD:
self.scene.getCamera().setAspect(self.width(), self.height())
if self.isRendering:
if updateType == UpdateType.CAMERA_CHANGE:
self.cameraToRenderer()
elif updateType in [
UpdateType.OBJECT_TRANSFORM, UpdateType.OBJECT_CREATE,
UpdateType.OBJECT_DELETE, UpdateType.MATERIAL_CREATE,
UpdateType.MATERIAL_DELETE, UpdateType.MATERIAL_CHANGE,
UpdateType.LIGHT_CHANGE
]:
self.renderer.stop()
self.renderer.clearMaterials()
self.renderer.clearObjects()
for mat in self.scene.getMaterialIterator():
self.materialToRenderer(mat)
for obj in self.scene.getObjectIterator():
self.sceneObjectToRenderer(obj)
self.cameraToRenderer()
self.renderer.start()
self.timestamps = [[time.time(), 0]]
self.renderStartTime = time.time()
self.update()
def startRender(self):
if self.isRendering:
return
self.isRendering = True
self.renderer = PyRenderer(self.width(), self.height())
self.renderer.setRenderSettings(self.renderSettings)
self.timestamps = [[time.time(), 0]]
self.cameraToRenderer()
self.update()
for mat in self.scene.getMaterialIterator():
self.materialToRenderer(mat)
for obj in self.scene.getObjectIterator():
self.sceneObjectToRenderer(obj)
self.renderer.start()
self.timer.setInterval(20)
self.timer.start()
self.renderStartTime = time.time()
def stopRender(self):
if not self.isRendering:
return
self.timer.stop()
self.isRendering = False
self.renderer = None
self.resizeGL(self.width(), self.height())
self.update()
self.updateFpsDisplay('')
def updateRenderResolution(self, width, height):
if not self.isRendering:
return
self.renderer.setResolution(width, height)
self.timestamps = [[time.time(), 0]]
def checkRender(self):
if not self.isRendering:
return
imageArray, numIterations = self.renderer.getData(
self.width(), self.height())
if numIterations < 0 or imageArray.shape != (self.height(),
self.width()):
self.timer.start()
return
if self.viewportTexture and self.context().isValid():
self.viewportTexture.destroy()
if self.context().isValid():
self.renderImage = QImage(self.width(), self.height(),
QImage.Format_RGB32)
copyArray = np.ndarray(shape=(self.height(), self.width()),
dtype=np.uint32,
buffer=self.renderImage.bits())
copyArray[0:, 0:] = imageArray[0:, 0:]
self.viewportTexture = QOpenGLTexture(QOpenGLTexture.Target2D)
self.viewportTexture.setSize(self.width(), self.height())
self.viewportTexture.setBorderColor(0, 0, 0, 255)
self.viewportTexture.setWrapMode(QOpenGLTexture.ClampToBorder)
self.viewportTexture.setMinificationFilter(QOpenGLTexture.Nearest)
self.viewportTexture.setMagnificationFilter(QOpenGLTexture.Nearest)
self.viewportTexture.setData(self.renderImage,
QOpenGLTexture.DontGenerateMipMaps)
if len(self.timestamps) == self.fpsWindow:
self.timestamps.pop()
self.timestamps.insert(0, [time.time(), numIterations])
diffs = [(self.timestamps[i][1] - self.timestamps[i + 1][1]) /
(self.timestamps[i][0] - self.timestamps[i + 1][0])
for i in range(len(self.timestamps) - 1)]
secs = int(time.time() - self.renderStartTime)
self.updateFpsDisplay(
'{: 4.1f} iterations/sec {:02.0f}:{:02.0f} min {:7d} iterations {:4d} x {:4d} pixel'
.format(
sum(diffs) / len(diffs), secs // 60, secs % 60,
numIterations, self.width(), self.height()))
self.update()
self.timer.start()
def closeViewport(self):
self.stopRender()
if self.viewportTexture and self.context().isValid():
self.viewportTexture.destroy()
def cameraToRenderer(self):
cam = self.scene.getCamera()
worldPos = cam.getTranslation()
targetPos = self.scene.getFocusObject().getTranslation()
self.renderer.updateCamera(
[worldPos.x(), worldPos.y(),
worldPos.z()],
[targetPos.x(), targetPos.y(),
targetPos.z()], cam.fovY, cam.fStop, cam.focusDistance,
cam.stratificationLevel)
def sceneObjectToRenderer(self, sceneObject):
objType = None
materialId = None
lightIntensity = 0.0
lightColor = [0.0, 0.0, 0.0]
isVisible = True
if isinstance(sceneObject, Camera):
objType = SceneObjectType.CAMERA
materialId = -1
if isinstance(sceneObject, Sphere):
objType = SceneObjectType.SPHERE
materialId = sceneObject.material.id
if isinstance(sceneObject, Cube):
objType = SceneObjectType.CUBE
materialId = sceneObject.material.id
if isinstance(sceneObject, Plane):
objType = SceneObjectType.PLANE
materialId = sceneObject.material.id
if isinstance(sceneObject, Disc):
objType = SceneObjectType.DISC
materialId = sceneObject.material.id
if isinstance(sceneObject, Light):
objType = sceneObject.getEmitterShape()
materialId = sceneObject.material.id
lightIntensity = sceneObject.getIntensity()
colVec = sceneObject.getColor()
lightColor = [colVec.x(), colVec.y(), colVec.z()]
isVisible = sceneObject.getVisibility()
matrixArray = sceneObject.calculateModel().transposed().copyDataTo()
self.renderer.addObject(sceneObject.id, materialId, objType,
matrixArray, lightIntensity, lightColor,
sceneObject.area(), isVisible)
def materialToRenderer(self, material):
if type(material) == DiffuseMaterial:
col = material.getEditorColor()
self.renderer.addDiffuseMaterial(
material.id, [col.x(), col.y(), col.z()])
if type(material) == SpecularMaterial:
reflectionColor = material.getReflectionColor()
transmissionColor = material.getTransmissionColor()
self.renderer.addSpecularMaterial(material.id, [
reflectionColor.x(),
reflectionColor.y(),
reflectionColor.z()
], [
transmissionColor.x(),
transmissionColor.y(),
transmissionColor.z()
], material.getIOR())
def setRenderSettings(self, renderSettings):
self.renderSettings = renderSettings
if self.isRendering:
self.renderer.setRenderSettings(self.renderSettings)
def getRenderSettings(self):
return self.renderSettings
def saveImage(self):
if not self.isRendering:
return
saveImage = self.renderImage.mirrored(horizontal=True)
fileTuple = QFileDialog.getSaveFileName(
self,
'Save destination',
dir="./images",
filter='Images (*.png *.jpg);;All files (*)')
if fileTuple[0]:
filename = fileTuple[0]
if '.' not in filename:
filename += '.png'
saveImage.save(filename, quality=100)