Volume rendering of forward model of supernova remnant (SNR). Three-dimensional rendering of the same radiatively cooling SNR shown in Figure 6, colored by internal energy. The remnant forms a roughly spherical hot bubble whose surface is strongly corrugated by expansion into a turbulent, inhomogeneous ambient medium. Bright filaments and knots trace dense, rapidly cooling material in the swept-up shell and in mixed cloud fragments, while the diffuse interior shows a web of turbulent structures generated by shock–cloud interactions and deceleration-driven instabilities. The rendering emphasizes the multiphase character of the remnant with a hot, volume-filling cavity bounded by a rippled, cooling shell and punctuated by small-scale clumps produced by nonlinear RT/KH growth.