XNA - Planetary LOD: CPU Perlin Noise

I was playing arround a bit with ridged multifractal noise for some elevation on my planet. The noise is currently generated synchronously on the CPU so it sometimes stutters when a chunk is getting divided.

Category:

Science & Technology

Tags:

• Quadtree
• XNA
• LOD
• Planet
• seamless
• planetary
• landing
• space

[Haetith]

It seems really nice but the speed gets really slow as you come closer. :o

Still, I'd so like to be able to do the same. I'm very interested in planetary engines, LOD, ROAM and all that stuff. But I'm a total newbie in programming.

Keep up the good work!

[RudiMedia]

@Haetith Thanks!

Like I said in the description this happens due to the synchronous calculation of the noise on the CPU. I'm going to get rid of this problem by doing these calculations on the GPU later on ;)

[ScorpyX]

so good so far

[TheBlackRazer]

@MegaBenBarnes

Sag mal, wie implementierst du das LOD und welchen Algorithmus / welches System nutzt du?

Geomipmapping?

[RudiMedia]

@MegaBenBarnes Die Indizes musst du nur ein einziges mal berechen, da sich die einzelnen Chunks ja nur in der Position ihrer Punkte, nicht aber in deren Anordnung unterscheiden. Somit brauchst du den Indexbuffer auch nur einmal mit setadata auffüllen ;)

[RudiMedia]

@MegaBenBarnes Jep