1. Direct Volume Rendering w/Shading via Three- Dimensional Textures

2. Introduction Intro Limitations Other methods

3. Overview of Texture-Map Initial step Lookup table computation Texture map processing

4. Ambient Light Calculation

5. Reflecting Surface Classification Calculation

6. Reflected Light Component Half-way vector specularity model Lambertian diffuse shading

7. Gradient Quantization Quantize gradient direction Unit Sphere Tessellation

8. Rendering Slices Apply texture Back to front ordering

9. Texture Coords Bounding cube Transformation:

10. Alternative Pipelines

11. Results

12. Footprint Evaluation for Volume Rendering

13. Introduction Forward-Mapping Algorithm Overview

14. Previous Work Ray tracing Compositing techniques Fitting surfaces into data cells

15. Rendering Algorithm Differences from original algorithm Algorithm breakdown  Transforming  Shading  Reconstruction  Visibility Splatting

16. Footprint Function Calculate once for each view

17. Generic Footprint Table Spherical Kernel Integration along the Z axis

18. Extents and Mapping Two cases

19. Extents and Mapping (cont.) Extent Mapping Ellipsoid defined as

20. Table Sizes and Kernels 3 Parameters  Size of the table Space vs. Quality tradeoff  Accessibility of the table  Table’s underlying kernel

21. Table Sizes and Kernels (cont.)

22. Sample Images

23. Sample Images (cont.)