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 DrawTorus(mTransform):
majorRadius = 0.35
minorRadius = 0.15
numMajor = 40
numMinor = 20
objectVertex = M3DVector3f() # Vertex in object/eye space
transformedVertex = M3DVector3f() # New Transformed vertex
majorStep = 2.0
majorStep = 2.0 * M3D_PI / float(numMajor)
minorStep = 2.0 * M3D_PI / float(numMinor)
i = 0
while (i < numMajor):
a0 = i * majorStep
a1 = a0 + majorStep
x0 = cos(a0)
y0 = sin(a0)
x1 = cos(a1)
y1 = sin(a1)
glBegin(GL_TRIANGLE_STRIP)
j = 0
# BS some sort of rounding error keeps a strip from being drawn
while (j < numMinor + 1):
b = j * minorStep
c = cos(b)
r = minorRadius * c + majorRadius
z = minorRadius * sin(b)
# First point
objectVertex[0] = x0 * r
objectVertex[1] = y0 * r
objectVertex[2] = z
m3dTransformVector3(transformedVertex, objectVertex, mTransform)
glVertex3fv(transformedVertex)
# Second point
objectVertex[0] = x1 * r
objectVertex[1] = y1 * r
objectVertex[2] = z
m3dTransformVector3(transformedVertex, objectVertex, mTransform)
glVertex3fv(transformedVertex)
j += 1
glEnd()
i += 1
def DrawTorus(mTransform):
majorRadius = 0.35
minorRadius = 0.15
numMajor = 40
numMinor = 20
objectVertex = M3DVector3f() # Vertex in object/eye space
transformedVertex = M3DVector3f() # New Transformed vertex
majorStep = 2.0
majorStep = 2.0 * M3D_PI / float(numMajor)
minorStep = 2.0 * M3D_PI / float(numMinor)
i = 0
while i < numMajor:
a0 = i * majorStep
a1 = a0 + majorStep
x0 = cos(a0)
y0 = sin(a0)
x1 = cos(a1)
y1 = sin(a1)
glBegin(GL_TRIANGLE_STRIP)
j = 0
# BS some sort of rounding error keeps a strip from being drawn
while j < numMinor + 1:
b = j * minorStep
c = cos(b)
r = minorRadius * c + majorRadius
z = minorRadius * sin(b)
# First point
objectVertex[0] = x0 * r
objectVertex[1] = y0 * r
objectVertex[2] = z
m3dTransformVector3(transformedVertex, objectVertex, mTransform)
glVertex3fv(transformedVertex)
# Second point
objectVertex[0] = x1 * r
objectVertex[1] = y1 * r
objectVertex[2] = z
m3dTransformVector3(transformedVertex, objectVertex, mTransform)
glVertex3fv(transformedVertex)
j += 1
glEnd()
i += 1
