Task:
Load the Richtmyer dataset from "richtmyer/data/richtmyer_256x256x240_float32.vtk".
Generate a visualization image of the Richtmyer dataset, Entropy field (timestep 160) of Richtmyer-Meshkov instability simulation, with the following visualization settings: 
1) Create volume rendering
2) Set the opacity transfer function as a ramp function from value 0.05 to 1 of the volumetric data, assigning opacity 0 to value less than 0.05 and assigning opacity 1 to value 1.
3) Set the color transfer function following the 7 rainbow colors and assign a red color [1.0, 0.0, 0.0] to the highest value, a purple color [0.5, 0.0, 1.0] to the lowest value.
4) Visualization image resolution is 1024x1024
5) Set the viewpoint parameters as: [420, 420, -550] to position; [128, 128, 150] to focal point; [-1, -1, 1] to camera up direction
6) Turn on the shade and set the ambient, diffuse and specular as 1.0
7) White background. Volume rendering ray casting sample distance is 0.1
8) Save the visualization image as a png file "richtmyer/results/{agent_mode}/richtmyer.png"
9) (Option 1) Save the paraview state as "richtmyer/results/{agent_mode}/richtmyer.pvsm" if you are using ParaView as the visualization tool
10) (Option 2) Save the cxx code script as "richtmyer/results/{agent_mode}/richtmyer.cxx" if you are using VTK as the visualization tool