def testPerspectiveFOV(self) : fov=45.0 near=0.02 far=10.0 aspect=1024.0/720.0 width=1024 height=720 perspNGL=pyngl.perspectiveFov(fov,width,height,near,far) perspGLM=glm.perspectiveFov(pyngl.radians(fov),width,height,near,far) self.assertTrue(self.glmToNGL(perspGLM)==perspNGL)
def testPerspectiveFOV(self):
fov = 45.0
near = 0.02
far = 10.0
aspect = 1024.0 / 720.0
width = 1024
height = 720
perspNGL = pyngl.perspectiveFov(fov, width, height, near, far)
perspGLM = glm.perspectiveFov(pyngl.radians(fov), width, height,
near, far)
self.assertTrue(self.glmToNGL(perspGLM) == perspNGL)
def _calc_projection(self):
asp = self.width / self.height
if self._projection == "o":
proj = glm.ortho(-3, 3, -3, 3, -30, 30)
elif self._projection == "p":
proj = glm.perspectiveFov(self.fov, self.width, self.height, 0.01,
100.)
proj = glm.translate(proj, glm.vec3(0, 0, -4))
self.projection_matrix = proj
def _calc_matrix(self):
sc = 11
asp = self.width / self.height
# projection
if self.projection in "it":
ysc = sc / asp
proj = glm.ortho(-sc, sc, -ysc, ysc, self._near, self._far)
elif self.projection == "o":
ysc = sc / asp * .75
proj = glm.ortho(-sc, sc, -ysc, ysc, self._near, self._far)
elif self.projection == "p":
proj = glm.perspectiveFov(1., self.width, self.height, self._near,
self._far)
proj = glm.translate(proj, glm.vec3(0, 0, -5))
else: # "e"
proj = glm.perspectiveFov(2., self.width, self.height, self._near,
self._far)
self._mat_project = proj
# transformation
trans = glm.rotate(glm.mat4(1), self._srotation[0], glm.vec3(1, 0, 0))
trans = glm.rotate(trans, self._srotation[1], glm.vec3(0, 1, 0))
trans = glm.rotate(trans, self._srotation[2], glm.vec3(0, 0, 1))
trans = glm.translate(
trans,
glm.vec3(0, 0, [-3, -2, -4, -1,
0]["oipet".index(self.projection)]))
trans = glm.scale(trans, glm.vec3(max(0.01, 1. + self.zoom / 10.)))
if self.user_transformation is not None:
trans = trans * self.user_transformation
self._mat_transform = trans
def _calc_projection_matrix(self):
sc = 11
asp = self.width / self.height
# projection
if self.projection == self.P_ORTHO:
ysc = sc/asp * .75
proj = glm.ortho(-sc,sc, -ysc,ysc, self._near, self._far)
elif self.projection == self.P_PERSPECTIVE:
proj = glm.perspectiveFov(1., self.width, self.height, self._near, self._far)
else:
raise ValueError(f"unknown projection type '{self.projection}'")
self._mat_project = proj
def render(self, rs, pass_num):
time = rs.time * self.speed
#proj = glm.ortho(-3, 3, -3, 3, -3, 3)
proj = glm.perspectiveFov(0.7, rs.render_width, rs.render_height, 0.01, 5.)
proj = glm.translate(proj, glm.vec3(0,0,-2))
proj = glm.rotate(proj, time*.7, glm.vec3(0,0,1))
proj = glm.rotate(proj, time*.8, glm.vec3(0,1,0))
proj = glm.rotate(proj, time*.9, glm.vec3(1,0,0))
self.drawable.shader.set_uniform("u_time", time)
self.drawable.shader.set_uniform("u_tex1", 0)
self.drawable.shader.set_uniform("u_tex2", 1)
self.drawable.shader.set_uniform("u_projection", proj)
glDisable(GL_CULL_FACE)
glEnable(GL_DEPTH_TEST)
#glEnable(GL_BLEND)
#glDepthMask(True)
#glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
self.drawable.draw()
def calculate_projection(self):
if self.ortho:
if min(self.app.size) < 1:
return glm.mat4(1)
# ratio = self.app.size[0] / self.app.size[1]
use_ratio = self._use_ratio()
if use_ratio:
ratio = self.app.aspect_ratio / 2
return glm.ortho(-ratio, ratio, *self.ortho_bounds()[2:])
else:
return glm.ortho(*self.ortho_bounds())
else:
# ratio = self.app.size[0] / self.app.size[1]
return glm.perspectiveFov(
math.tau * self._fov(),
self.app.aspect_ratio, # float(self.app.size[0]),
1, # float(self.app.size[1]),
0.01,
1000.0,
)
def set_perspective(self, fov=45):
self.proj_mat = glm.perspectiveFov(glm.radians(fov), float(self.res[0]), float(self.res[1]), -0.1, 100.)