def toonDrawTorus(majorRadius, minorRadius, numMajor, numMinor, lightDir):
mModelViewMatrix = M3DMatrix44f()
mInvertedLight = M3DMatrix44f()
vNewLight = M3DVector3f()
vNormal = M3DVector3f()
majorStep = 2.0 * M3D_PI / numMajor
minorStep = 2.0 * M3D_PI / numMinor
# Get the modelview matrix
glGetFloatv(GL_MODELVIEW_MATRIX, mModelViewMatrix)
# Instead of transforming every normal and then dotting it with
# the light vector, we will transform the light into object
# space by multiplying it by the inverse of the modelview matrix
m3dInvertMatrix44(mInvertedLight, mModelViewMatrix)
m3dTransformVector3(vNewLight, vLightDir, mInvertedLight)
vNewLight[0] -= mInvertedLight[12]
vNewLight[1] -= mInvertedLight[13]
vNewLight[2] -= mInvertedLight[14]
m3dNormalizeVector(vNewLight)
# Draw torus as a series of triangle strips
for i in range(0, numMajor):
a0 = i * majorStep
a1 = a0 + majorStep
x0 = cos(a0)
y0 = sin(a0)
x1 = cos(a1)
y1 = sin(a1)
glBegin(GL_TRIANGLE_STRIP)
for j in range(0, numMinor + 1):
b = j * minorStep
c = cos(b)
r = minorRadius * c + majorRadius
z = minorRadius * sin(b)
# First point
vNormal[0] = x0 * c
vNormal[1] = y0 * c
vNormal[2] = z / minorRadius
m3dNormalizeVector(vNormal)
# Texture coordinate is set by intensity of light
glTexCoord1f(m3dDotProduct(vNewLight, vNormal))
glVertex3f(x0 * r, y0 * r, z)
# Second point
vNormal[0] = x1 * c
vNormal[1] = y1 * c
vNormal[2] = z / minorRadius
m3dNormalizeVector(vNormal)
# Texture coordinate is set by intensity of light
glTexCoord1f(m3dDotProduct(vNewLight, vNormal))
glVertex3f(x1 * r, y1 * r, z)
glEnd()
def toonDrawTorus(majorRadius, minorRadius, numMajor, numMinor, lightDir):
mModelViewMatrix = M3DMatrix44f()
mInvertedLight = M3DMatrix44f()
vNewLight = M3DVector3f()
vNormal = M3DVector3f()
majorStep = 2.0*M3D_PI / numMajor
minorStep = 2.0*M3D_PI / numMinor
# Get the modelview matrix
glGetFloatv(GL_MODELVIEW_MATRIX, mModelViewMatrix)
# Instead of transforming every normal and then dotting it with
# the light vector, we will transform the light into object
# space by multiplying it by the inverse of the modelview matrix
m3dInvertMatrix44(mInvertedLight, mModelViewMatrix)
m3dTransformVector3(vNewLight, vLightDir, mInvertedLight)
vNewLight[0] -= mInvertedLight[12]
vNewLight[1] -= mInvertedLight[13]
vNewLight[2] -= mInvertedLight[14]
m3dNormalizeVector(vNewLight)
# Draw torus as a series of triangle strips
for i in range(0, numMajor):
a0 = i * majorStep
a1 = a0 + majorStep
x0 = cos(a0)
y0 = sin(a0)
x1 = cos(a1)
y1 = sin(a1)
glBegin(GL_TRIANGLE_STRIP)
for j in range(0, numMinor + 1):
b = j * minorStep
c = cos(b)
r = minorRadius * c + majorRadius
z = minorRadius * sin(b)
# First point
vNormal[0] = x0*c
vNormal[1] = y0*c
vNormal[2] = z/minorRadius
m3dNormalizeVector(vNormal)
# Texture coordinate is set by intensity of light
glTexCoord1f(m3dDotProduct(vNewLight, vNormal))
glVertex3f(x0*r, y0*r, z)
# Second point
vNormal[0] = x1*c
vNormal[1] = y1*c
vNormal[2] = z/minorRadius
m3dNormalizeVector(vNormal)
# Texture coordinate is set by intensity of light
glTexCoord1f(m3dDotProduct(vNewLight, vNormal))
glVertex3f(x1*r, y1*r, z)
glEnd()
def DrawGLScene():
# Clear the window
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glPushMatrix()
frameCamera.ApplyCameraTransform() # Move the camera about
# Sky Box is manually textured
glActiveTexture(GL_TEXTURE0)
glDisable(GL_TEXTURE_2D)
glActiveTexture(GL_TEXTURE1)
glEnable(GL_TEXTURE_CUBE_MAP)
glDisable(GL_TEXTURE_GEN_S)
glDisable(GL_TEXTURE_GEN_T)
glDisable(GL_TEXTURE_GEN_R)
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL)
DrawSkyBox()
# Use texgen to apply cube map
glEnable(GL_TEXTURE_GEN_S)
glEnable(GL_TEXTURE_GEN_T)
glEnable(GL_TEXTURE_GEN_R)
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE)
glActiveTexture(GL_TEXTURE0)
glEnable(GL_TEXTURE_2D)
glPushMatrix()
glTranslatef(0.0, 0.0, -3.0)
glActiveTexture(GL_TEXTURE1)
glMatrixMode(GL_TEXTURE)
glPushMatrix()
# Invert camera matrix (rotation only) and apply to
# texture coordinates
invert = M3DMatrix44f()
m = frameCamera.GetCameraOrientation()
m3dInvertMatrix44(invert, m)
glMultMatrixf(invert)
glColor3f(1.0, 1.0, 1.0)
gltDrawSphere(0.75, 41, 41)
glPopMatrix()
glMatrixMode(GL_MODELVIEW)
glPopMatrix()
glPopMatrix()
glutSwapBuffers()
def on_draw(self):
# Clear the window
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glPushMatrix()
frameCamera.ApplyCameraTransform() # Move the camera about
# Sky Box is manually textured
glActiveTexture(GL_TEXTURE0)
glDisable(GL_TEXTURE_2D)
glActiveTexture(GL_TEXTURE1)
glEnable(GL_TEXTURE_CUBE_MAP)
glDisable(GL_TEXTURE_GEN_S)
glDisable(GL_TEXTURE_GEN_T)
glDisable(GL_TEXTURE_GEN_R)
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL)
# DrawSkyBox()
# Use texgen to apply cube map
glEnable(GL_TEXTURE_GEN_S)
glEnable(GL_TEXTURE_GEN_T)
glEnable(GL_TEXTURE_GEN_R)
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE)
glActiveTexture(GL_TEXTURE0)
glEnable(GL_TEXTURE_2D)
glPushMatrix()
glTranslatef(0.0, 0.0, -3.0)
glActiveTexture(GL_TEXTURE1)
glMatrixMode(GL_TEXTURE)
glPushMatrix()
# Invert camera matrix (rotation only) and apply to
# texture coordinates
invert = M3DMatrix44f()
m = frameCamera.GetCameraOrientation()
m3dInvertMatrix44(invert, m)
glMultMatrixf(invert)
glColor3f(1.0, 1.0, 1.0)
gltDrawSphere(0.75, 41, 41)
glPopMatrix()
glMatrixMode(GL_MODELVIEW)
glPopMatrix()
glPopMatrix()
def on_draw(self):
# Clear the window
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glPushMatrix()
frameCamera.ApplyCameraTransform() # Move the camera about
# Sky Box is manually textured
glDisable(GL_TEXTURE_GEN_S)
glDisable(GL_TEXTURE_GEN_T)
glDisable(GL_TEXTURE_GEN_R)
DrawSkyBox()
# Use texgen to apply cube map
glEnable(GL_TEXTURE_GEN_S)
glEnable(GL_TEXTURE_GEN_T)
glEnable(GL_TEXTURE_GEN_R)
glPushMatrix()
glTranslatef(0.0, 0.0, -3.0)
glMatrixMode(GL_TEXTURE)
glPushMatrix()
# Invert camera matrix (rotation only) and apply to
# texture coordinates
m = M3DMatrix44f()
invert = M3DMatrix44f()
m = frameCamera.GetCameraOrientation()
m3dInvertMatrix44(invert, m)
glMultMatrixf(invert)
gltDrawSphere(0.75, 41, 41)
glPopMatrix()
glMatrixMode(GL_MODELVIEW)
glPopMatrix()
glPopMatrix()
