def make_fov(sweep=90, steps=16, scale=100): z = 1 + random.uniform(-0.01, 0.01) data = EggData() vp = EggVertexPool('fan') data.addChild(vp) poly = EggPolygon() data.addChild(poly) v = EggVertex() v.setPos(Point3D(0, 0, z)) poly.addVertex(vp.addVertex(v)) rads = deg2Rad(sweep) for i in range(steps + 1): a = rads * i / steps y = math.sin(a) x = math.cos(a) v = EggVertex() v.setPos(Point3D(x*scale, y*scale, z)) poly.addVertex(vp.addVertex(v)) node = loadEggData(data) np = NodePath(node) np.setH(sweep/2) return np
def createGizmo(self, angleDegrees=360, numSteps=16, axis=0, scale=10): data = EggData() vp = EggVertexPool('fan') data.addChild(vp) poly = EggPolygon() data.addChild(poly) v = EggVertex() v.setPos(Point3D(0, 0, 0)) poly.addVertex(vp.addVertex(v)) angleRadians = deg2Rad(angleDegrees) for i in range(numSteps + 1): a = angleRadians * i / numSteps y = math.sin(a) * scale x = math.cos(a) * scale v = EggVertex() if axis is 0: v.setPos(Point3D(x, 0, y)) elif axis is 1: v.setPos(Point3D(x, y, 0)) else: v.setPos(Point3D(0, x, y)) poly.addVertex(vp.addVertex(v)) node = loadEggData(data) return NodePath(node)
def getNodepath(self): myCurve = EggNurbsCurve() myCurve.setup(3, len(self.myverts) + 3) myCurve.setCurveType(1) for i in self.myverts: myCurve.addVertex(i) self.eggGroup.addChild(myCurve) return NodePath(loadEggData(self.data))
def DisplacementUVSphere(radius, heightmap, scale, rings=5, sectors=5, inv_texture_u=False, inv_texture_v=True): data = EggData() pool = EggVertexPool('pool') vertices = [] data.addChild(pool) R = 1. / (rings) S = 1. / (sectors) for r in range(0, rings + 1): for s in range(0, sectors + 1): cos_s = cos(2 * pi * s * S + pi) sin_s = sin(2 * pi * s * S + pi) sin_r = sin(pi * r * R) cos_r = cos(pi * r * R) x = cos_s * sin_r y = sin_s * sin_r z = cos_r vertex = EggVertex() u = s * S v = r * R height = radius + heightmap.get_height_uv(u, v) * scale vertex.setPos(LPoint3d(x * height, y * height, z * height)) if inv_texture_v: v = 1.0 - v if inv_texture_u: u = 1.0 - u vertex.setUv(LPoint2d(u, v)) pool.addVertex(vertex) vertices.append(vertex) index = 0 for r in range(0, rings): for s in range(0, sectors): poly = EggPolygon() data.addChild(poly) poly.addVertex(vertices[index + sectors + 1]) poly.addVertex(vertices[index]) poly.addVertex(vertices[index + sectors]) poly = EggPolygon() data.addChild(poly) poly.addVertex(vertices[index + sectors + 1]) poly.addVertex(vertices[index + 1]) poly.addVertex(vertices[index]) index += 1 data.removeUnusedVertices(True) data.recomputeVertexNormals(45) data.recomputeTangentBinormal(GlobPattern("")) node = loadEggData(data) path = NodePath(node) path.flattenStrong() return path
def obj2bam(infile, outfile, coordinateSystem='z-up', recomputeVertexNormals=False, recomputeTangentBinormal=False, recomputePolygonNormals=False, triangulatePolygons=False, degreeSmoothing=30.0): if coordinateSystem == 'z-up' or coordinateSystem == 'z-up-right': coordSys = CSZupRight elif coordinateSystem == 'z-up-left': coordSys = CSZupLeft elif coordinateSystem == 'y-up' or coordinateSystem == 'y-up-right': coordSys = CSYupRight elif coordinateSystem == 'y-up-left': coordSys = CSYupLeft else: raise Exception('Unsupported coordinate system: %s' % (coordinateSystem)) os.chdir(os.path.dirname(infile)) obj = ObjFile(infile) egg = obj.toEgg() egg.setCoordinateSystem(coordSys) egg.removeUnusedVertices(GlobPattern("")) if recomputeVertexNormals: egg.recomputeVertexNormals(float(degreeSmoothing)) if recomputeTangentBinormal: egg.recomputeTangentBinormal(GlobPattern("")) if recomputePolygonNormals: egg.recomputePolygonNormals() if triangulatePolygons: egg.triangulatePolygons(EggData.TConvex & EggData.TPolygon) np = NodePath(loadEggData(egg)) np.writeBamFile(outfile) np.removeNode()
def make_circle(self, num_steps): data = EggData() vertex_pool = EggVertexPool('fan') data.addChild(vertex_pool) poly = EggPolygon() data.addChild(poly) for i in range(num_steps + 1): angle = 2 * math.pi * i / num_steps y = math.sin(angle) * config.minimap.size / 2 x = math.cos(angle) * config.minimap.size / 2 vertex = EggVertex() vertex.setPos(Point3D(x, 0, y)) poly.addVertex(vertex_pool.addVertex(vertex)) node = loadEggData(data) return node
def createCuttingPlanes(self): self.planes = self.render.attachNewNode("planes") pl = self.planes.attachNewNode("pl") data = EggData() self.planedata = [] vp = EggVertexPool('plane') data.addChild(vp) fac = 1.0 expanse = 10.0 rng = 4 for i in range(-rng, rng): poly = EggPolygon() data.addChild(poly) self.planedata.append(i * fac) v = EggVertex() v.setPos(Point3D(i * fac, -expanse, -expanse)) poly.addVertex(vp.addVertex(v)) v = EggVertex() v.setPos(Point3D(i * fac, -expanse, +expanse)) poly.addVertex(vp.addVertex(v)) v = EggVertex() v.setPos(Point3D(i * fac, +expanse, +expanse)) poly.addVertex(vp.addVertex(v)) v = EggVertex() v.setPos(Point3D(i * fac, +expanse, -expanse)) poly.addVertex(vp.addVertex(v)) node = loadEggData(data) np = NodePath(node) np.reparentTo(pl) np.setColor(0, 1, 0, 1) np.setTwoSided(True) np.setTransparency(TransparencyAttrib.MAlpha) np.setAlphaScale(0.1) np.setCollideMask(BitMask32(0x0)) return self.planes
def getNodePath(self): return p3d.NodePath(egg.loadEggData(self.getEggData()))