Planetary-scale Terrain Composition

Lets look at the individual steps performed by the Terrain Composition algorithm. First the CPU computes a coarse set of visible triangular patches. These are uploaded to the GPU for recursive refinement seen here. This mesh is processed by the GPU as an image, allowing an arbitrary number of height map textures to be composed directly with it. The texture coordinate of each fragment is written to a 32-bit floating point frame buffer. Here we see longitude in red and latitude in green. Given this an arbitrary number of surface maps may be composed atop our terrain geometry using ordinary alpha blending terrain space. In this case, the many pages of virtual texture are seamlessly blended. Similarly, normal maps derived from our height map textures are accumulated. Finally, the diffuse color and normal map buffers are combined with an atmospheric illumination model, yielding the final image.
See www.evl.uic.edu/core.php?mod=4&type=1&indi=395

Category:

Science & Technology

Tags:

• EVL
• Electronic
• Visualization
• Laboratory
• Planetary-scale
• Terrain
• Composition
• Tellurion
• Advanced
• www.evl.uic.edu

[dishliquid]

How did you get the robot to do the voice over?

[Dimcair]

the voice is horrible...

[swissxplane]

next flight sim

[Pyroney]

I didnt understand a word he just said.

[B44rules]

wait, isn't this just Google Earth?

[TheFXGuy]

That's awesome. I would LOVE to play with that.

[mmanhiker08]

Video is great. Narrator really needs to pace the voice over. Too fast!

[ig521987]

outstanding work

[OldSchoolSkill]

Pardon the street vernacular, but...

THAT is BADD AZZ MADD COMPU-SKILL!

[bellinivernon]

.Exelente ; gracias ,desde argentina.