1. Heart is animated using morph targets set up appropriately in the respective 3D applications. 2. A transparent human model is included to give a sense of the organ's location, without cluttering the important details inside. 3. Optimized subdivision cage gives smooth edges even in high definition. Just step up the subdivision levels.* 4. Heart is textured and bump mapped with 2048 x 2048 image. Materials are applied to all objects. 5. Clean topology. Only tris & quads used. 6. Modeled to real world scale.
*The original model is smoothened using TurboSmooth in Max, SmoothMesh in Maya, Subpatch in XSI & Lightwave, and Hypernurbs in C4D, which renders exactly like the preview images, and yet preserving the original low mesh density like the wireframe preview.
The user only need to crank up the subdivision to get a high poly & detailed mesh for rendering, OR crank down the subdivision for a low poly mesh while animating. ==========================================