test-4-2.py

# import standard library
import sys

# import third party library

# import local library
from core.base import Base, baseApp
from core.renderer import Renderer
from core.scene import Scene
from core.camera import Camera
from core.mesh import Mesh
from geometry.geometry import Geometry
from material.surfaceMaterial import SurfaceMaterial


# render a custom geometry
class Test(Base):
    def __init__(self, screenSize=[512, 512], title=""):
        super().__init__(screenSize, title)

    def initializeGL(self):
        super().initializeGL()

        self.renderer = Renderer(self)
        self.scene = Scene()
        self.camera = Camera(aspectRatio=800 / 600)
        self.camera.setPosition([0, 0, 0.5])

        geometry = Geometry()
        p0 = [-0.1, 0.1, 0.0]
        p1 = [0.0, 0.0, 0.0]
        p2 = [0.1, 0.1, 0.0]
        p3 = [-0.2, -0.2, 0.0]
        p4 = [0.2, -0.2, 0.0]
        posData = [p0, p3, p1, p1, p3, p4, p1, p4, p2]
        geometry.addAttribute("vec3", "vertexPosition", posData)
        r = [1, 0, 0]
        y = [1, 1, 0]
        g = [0, 0.25, 0]
        colData = [r, g, y, y, g, g, y, g, r]
        geometry.addAttribute("vec3", "vertexColor", colData)
        geometry.countVertices()

        material = SurfaceMaterial(
            {"useVertexColors": True})
        self.mesh = Mesh(geometry, material)
        self.scene.add(self.mesh)

    def paintGL(self):
        super().paintGL()
        # self.mesh.rotateY(0.0514)
        # self.mesh.rotateX(0.0337)
        self.renderer.render(self.scene, self.camera)


def main():
    app = baseApp(sys.argv)
    window = Test([800, 600], "Test-4-2")
    window.show()
    sys.exit(app.exec())


if __name__ == '__main__':
    main()