/
GLWidget.py
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/
GLWidget.py
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#!/usr/bin/env python
#
"""
This file is part of DomeSimulator.
DomeSimulator is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
DomeSimulator is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with DomeSimulator. If not, see <http://www.gnu.org/licenses/>.
DomeSimulator is free for non-commercial use. If you want to use it
commercially, you should contact the author
Michael Winkelmann aka Wilston Oreo by mail:
me@wilstonoreo.net
"""
from __future__ import print_function
from Camera import Camera
from MyGeom import Point3D, Vector3D, Matrix4x4
from PyQt4 import QtGui, QtCore
from PyQt4.QtOpenGL import *
from OpenGL.GL import *
from OpenGL.GLU import *
from OpenGL.GLUT import *
from Projector import Projector
from Projector import Projectors3
from Projectors4 import Projectors4
import math
import numpy
try:
from PIL.Image import open as ImageOpen
except ImportError, err:
from Image import open as ImageOpen
from Base import *
from Texture import Texture
from Shader import Shader
import CanvasModel
TEXTURE_PATH = "./images"
class GLWidget(QGLWidget):
def __init__(self, parent):
QGLWidget.__init__(self, parent)
self.setMouseTracking(True)
self.selectedProj = -1
self.canvasModel = CanvasModel.Dome(23.0,11.5,11.5,0.0,1.0)
self.showCanvas = True
self.projectors = Projectors4(
Projector(11.5),
Projector(11.5),
Projector(11.5),
Projector(11.5),
0.0, # Tower Height
25.0, # Pitch Angle
0.0) # Yaw Angle
self.edgeBlending = True
self.showProjectorImages = True
self.projImagesFullscreen = False
# self.setMinimumSize(500, 500)
self.camera = Camera()
self.camera.setSceneRadius( 30 )
self.camera.reset()
self.isPressed = False
self.oldx = self.oldy = 0
self.textureFiles = os.listdir(TEXTURE_PATH)
self.textures = dict()
self.shaders = dict()
self.selTexture = "spherical_small"
def paintGL(self):
def paintProjectorImage(proj,offset,size,alpha):
glColor(1.0,1.0,1.0,alpha)
ar = 1.0 / proj.aspectRatio * 4.0
className = str(self.canvasModel.__class__)
projShader = self.shaders[className+"_proj"]
# if self.selTexture in self.textures:
glActiveTexture(GL_TEXTURE0); # use first texturing unit
projShader.use()
projShader.set(proj_texture = ("1i",[0]),
alpha_value = ("1f",[alpha]))
self.canvasModel.shaderSettings(projShader)
self.projectors.shaderSettings(projShader)
self.textures[self.selTexture].setup()
glBegin( GL_QUADS )
glTexCoord2f(0.0, 0.0); glVertex2fv(offset)
glTexCoord2f(1.0, 0.0); glVertex2f(offset[0]+ar*size,offset[1])
glTexCoord2f(1.0, 1.0); glVertex2f(offset[0]+ar*size,offset[1]+size)
glTexCoord2f(0.0, 1.0); glVertex2f(offset[0],offset[1]+size)
glEnd()
projShader.unuse()
if self.edgeBlending:
edgeBlendShader = self.shaders[className+"_edgeblend"]
edgeBlendShader.use()
# edgeBlendShader.set(proj_texture = ("1i",[0]),
# alpha_value = ("1f",[alpha]))
self.canvasModel.shaderSettings(edgeBlendShader)
self.projectors.shaderSettings(edgeBlendShader)
self.projectors.edgeBlendShaderSettings(edgeBlendShader)
glBegin( GL_QUADS )
glTexCoord2f(0.0, 0.0); glVertex2fv(offset)
glTexCoord2f(1.0, 0.0); glVertex2f(offset[0]+ar*size,offset[1])
glTexCoord2f(1.0, 1.0); glVertex2f(offset[0]+ar*size,offset[1]+size)
glTexCoord2f(0.0, 1.0); glVertex2f(offset[0],offset[1]+size)
glEnd()
edgeBlendShader.unuse()
def drawProjectorImage():
glLoadIdentity()
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
gluOrtho2D(0,1 / float(self.height()) * self.width(),0,1)
glMatrixMode(GL_MODELVIEW)
glLoadIdentity()
glDisable( GL_DEPTH_TEST )
glDisable( GL_CULL_FACE )
if self.projImagesFullscreen and self.selectedProj != -1:
paintProjectorImage(self.projectors[self.selectedProj],[0.0,0.0],1.0,0.5)
else:
bottom = 0.05
size = 0.2
xOffset = 0.05
proj = self.projectors
paintProjectorImage(proj,[xOffset,bottom],size,1.0)
xOffset += size / proj.aspectRatio + 0.05
glDisable(GL_TEXTURE_2D)
light0 = Light(GL_LIGHT0,Point3D(0.0,-20.0,-20.0))
light1 = Light(GL_LIGHT1,Point3D(0.0,20.0,20.0))
glMatrixMode( GL_PROJECTION )
glLoadIdentity()
self.camera.transform()
glMatrixMode( GL_MODELVIEW )
glLoadIdentity();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glDepthFunc( GL_LEQUAL );
glEnable( GL_DEPTH_TEST );
colors = { "projA" : [1,0,0],
"projB" : [0,1,0],
"projC" : [0,0,1],
"projC" : [1,1,0] }
glPushMatrix()
glLoadIdentity()
#self.projectors.drawA(self.canvasModel,colors["projA"])
#self.projectors.drawB(self.canvasModel,colors["projB"])
#self.projectors.drawC(self.canvasModel,colors["projC"])
#self.projectors.drawD(self.canvasModel,colors["projD"])
glPopMatrix()
if self.showCanvas:
mode = GLU_FILL
texture = None
if self.selTexture in self.textures:
texture = self.textures[self.selTexture]
shader = self.shaders[str(self.canvasModel.__class__)+"_inv_proj"]
shader.use()
self.canvasModel.shaderSettings(shader)
self.projectors.shaderSettings(shader)
shader.set(proj_multi = ("4f",[[1.0,1.0,1.0,1.0]]))
self.canvasModel.draw(mode,texture,colors,None,self.selectedProj)
shader.unuse()
drawProjectorImage()
glFlush()
def resizeGL(self, widthInPixels, heightInPixels):
self.camera.setViewportDimensions(widthInPixels, heightInPixels)
glViewport(0, 0, widthInPixels, heightInPixels)
def initializeGL(self):
glClearColor(0.0, 0.0, 0.0, 1.0)
glClearDepth(1.0)
domeStr = "CanvasModel.Dome"
self.shaders[domeStr+"_proj"] = Shader("shaders/dome_proj.vert","shaders/dome_4proj.frag")
self.shaders[domeStr+"_edgeblend"] = Shader("shaders/dome_edgeblend.vert","shaders/dome_edgeblend_4proj.frag")
self.shaders[domeStr+"_inv_proj"] = Shader("shaders/dome_inv_proj.vert","shaders/dome_inv_proj.frag")
# cycloramaStr = "CanvasModel.Cyclorama"
# self.shaders[cycloramaStr+"_proj"] = Shader("shaders/cyclorama_proj.vert","shaders/dome_proj.frag")
# self.shaders[cycloramaStr+"_edgeblend"] = Shader("shaders/cyclorama_edgeblend.vert","shaders/cyclorama_edgeblend.frag")
# self.shaders[cycloramaStr+"_inv_proj"] = Shader("shaders/dome_inv_proj.vert","shaders/dome_inv_proj.frag")
for textureFile in self.textureFiles:
texFile = os.path.join(TEXTURE_PATH,textureFile)
self.textures[textureFile[:-4]] = Texture(texFile)
def mouseMoveEvent(self, mouseEvent):
if int(mouseEvent.buttons()) != QtCore.Qt.NoButton :
# user is dragging
delta_x = mouseEvent.x() - self.oldx
delta_y = self.oldy - mouseEvent.y()
if int(mouseEvent.buttons()) & QtCore.Qt.LeftButton :
if int(mouseEvent.buttons()) & QtCore.Qt.MidButton :
self.camera.dollyCameraForward( 3*(delta_x+delta_y), False )
else:
self.camera.orbit(self.oldx,self.oldy,mouseEvent.x(),mouseEvent.y())
elif int(mouseEvent.buttons()) & QtCore.Qt.MidButton :
self.camera.translateSceneRightAndUp( delta_x, delta_y )
self.update()
self.oldx = mouseEvent.x()
self.oldy = mouseEvent.y()
def getSelectedProj(self):
proj = None
if self.selectedProj == 0:
proj = self.projectors.a
elif self.selectedProj == 1:
proj = self.projectors.b
elif self.selectedProj == 2:
proj = self.projectors.c
return proj
def setShowProjectorImages(self, value):
self.showProjectorImages = value
self.update()
def setEdgeBlending(self, value):
self.edgeBlending = value
self.update()
def setProjImagesFullscreen(self,value):
self.projImagesFullscreen = value
self.update()
#def mouseDoubleClickEvent(self, mouseEvent):
# print "double click"
def setSelTexture(self, value):
self.selTexture = str(value)
self.update()
def wheelEvent(self,event):
if int(event.modifiers()) == (QtCore.Qt.ControlModifier):
fov = self.camera.FIELD_OF_VIEW_IN_DEGREES
fov += float(event.delta()) / 180
if fov > 120: fov = 120
if fov < 5: fov = 5
self.camera.FIELD_OF_VIEW_IN_DEGREES = fov
else: # Change distance of camera
self.camera.dollyCameraForward(event.delta() * 10.0 / self.camera.FIELD_OF_VIEW_IN_DEGREES,False)
self.update()
def mousePressEvent(self, e):
self.isPressed = True
def mouseReleaseEvent(self, e):
self.isPressed = False