def setup_fog():
glEnable(GL_FOG)
glFogfv(GL_FOG_COLOR, (GLfloat * 4)(0.5, 0.69, 1.0, 1))
glHint(GL_FOG_HINT, GL_DONT_CARE)
glFogi(GL_FOG_MODE, GL_LINEAR)
glFogf(GL_FOG_START, 20.0)
glFogf(GL_FOG_END, 60.0)
def setup_fog():
# Enables fog.
gl.glEnable(gl.GL_FOG)
# Sets fog colour.
gl.glFogfv(gl.GL_FOG_COLOR, (gl.GLfloat * 4)(0.5, 0.69, 1.0, 1))
gl.glHint(gl.GL_FOG_HINT, gl.GL_DONT_CARE)
gl.glFogi(gl.GL_FOG_MODE, gl.GL_LINEAR)
# Fog distance.
gl.glFogf(gl.GL_FOG_START, 20.0)
gl.glFogf(gl.GL_FOG_END, 60.0)
def enable(self):
gl.glEnable(gl.GL_FOG)
gl.glFogfv(gl.GL_FOG_COLOR, self.color)
gl.glFogf(gl.GL_FOG_START, self.start)
gl.glFogf(gl.GL_FOG_END, self.end)
if self.density is not None:
gl.glFogf(gl.GL_FOG_DENSITY, self.density)
if self.hint is not None:
gl.glHint(gl.GL_FOG_HINT, self.hint)
gl.glFogi(gl.GL_FOG_MODE, self.equation)
def init_gl_fog(self):
"""Configure the OpenGL fog properties."""
# Enable fog. Fog "blends a fog color with each rasterized pixel fragment's
# post-texturing color."
glEnable(GL_FOG)
# Set the fog color.
glFogfv(GL_FOG_COLOR, (GLfloat * 4)(0.5, 0.69, 1.0, 1))
# Say we have no preference between rendering speed and quality.
glHint(GL_FOG_HINT, GL_DONT_CARE)
# Specify the equation used to compute the blending factor.
glFogi(GL_FOG_MODE, GL_LINEAR)
# How close and far away fog starts and ends. The closer the start and end,
# the denser the fog in the fog range.
glFogf(GL_FOG_START, 20.0)
glFogf(GL_FOG_END, 60.0)
def init_gl_fog(self):
"""Configure the OpenGL fog properties."""
# Enable fog. Fog "blends a fog color with each rasterized pixel fragment's
# post-texturing color."
glEnable(GL_FOG)
# Set the fog color.
glFogfv(GL_FOG_COLOR, (GLfloat * 4)(0.5, 0.69, 1.0, 1))
# Say we have no preference between rendering speed and quality.
glHint(GL_FOG_HINT, GL_DONT_CARE)
# Specify the equation used to compute the blending factor.
glFogi(GL_FOG_MODE, GL_LINEAR)
# How close and far away fog starts and ends. The closer the start and end,
# the denser the fog in the fog range.
glFogf(GL_FOG_START, 20.0)
glFogf(GL_FOG_END, 60.0)
