View Issue Details
| ID | Project | Category | Date Submitted | Last Update | |
|---|---|---|---|---|---|
| 0000930 | AI War 1 / Classic | Suggestion | Oct 27, 2010 5:26 pm | Dec 23, 2010 6:02 pm | |
| Reporter | Lancefighter | Assigned To | Chris_McElligottPark | ||
| Status | minor fix for later | Resolution | open | ||
| Product Version | 4.000 | ||||
| Summary | 0000930: Range circles are incredibly intensive | ||||
| Description | Say, take your regular ball of death of ~1k units, and press z... and wonder why all the sudden your getting a slideshow. My general suggestion on the matter would be get the size of any given group of units (say, 100 fighters alltogether in a circle), get the size of that circle, and add the range of fighters to it, then project that single range circle from the center of the group. Oddly, doesnt seem to be an issue for my few dozen starships. Weird, huh? | ||||
| Tags | No tags attached. | ||||
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I have only death ball of 400 something units to test on - but I would bet on GPU usage here. Number of draw calls goes up when you use z for range rings. Do you see similar behavior when you press alt when group numbers are shown? I'm not noticing performance drop with range rings even with z+x combination but my GPU is not fully loaded when AI War is running. Actually range rings look much better than in SlimDX variant - how are they drawn now? |
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er. I dont know. Your right, it might be gpu.. I was assuming the issue was calculating where the points would be for the circle. |
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The circle is a graphic, its scaled up (which is why the larger rings have thicker dashes). It's probably a vector graphic and not a raster one, but calculating the draw location isn't the issue, it's the 400 multiplication calls on the GPU to render the transparency effect. |
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From what I remember circles were prerendered textures - but this may have been changed. So main time would be to render the quads and apply proper alpha blends. Memory bandwidth would be the prime requirement due to quite large texture. Take a look at RuntimeData\Images\Circles folder and you'll see the circles :D |
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Actually, we already do a lot of things that make it draw way fewer lines than it could, but there's always more that could be done. |
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And: yes, it's just a prerendered texture rendered on a quad, like everything in AI War. I am not aware of any hardware-accelerated way to use vector graphics on current GPU hardware, and at any rate we don't use them. In this case it's the calculation of both the transparency and the scaling, plus just the draw itself, that's the intensive part. |
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Maybe there should be an option in the preferences to turn on the alpha blending on ship ranges, and if it is on, only show the colored outline and not "blend" its color into the circle. More simply put, an option to remove the translucent filling in range circles. |
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Hmm, I'd forgotten that they were using a partial-alpha color. That can just be taken off in general, it was an extremely subtle effect to begin with. * The range circles no longer draw with partially-transparent colors for the lines, thus reducing their GPU overhead quite a bit, more or less depending on the GPU in question. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| Oct 27, 2010 5:26 pm | Lancefighter | New Issue | |
| Oct 27, 2010 8:44 pm | orzelek | Note Added: 0002261 | |
| Oct 27, 2010 8:45 pm | orzelek | Note Edited: 0002261 | |
| Oct 27, 2010 8:53 pm | Lancefighter | Note Added: 0002267 | |
| Oct 27, 2010 8:55 pm | Lancefighter | Summary | Range circles are incredibly cpu intensive => Range circles are incredibly intensive |
| Nov 8, 2010 6:54 pm | Draco18s | Note Added: 0003014 | |
| Nov 9, 2010 1:53 pm | orzelek | Note Added: 0003082 | |
| Dec 23, 2010 5:44 pm | Chris_McElligottPark | Note Added: 0006951 | |
| Dec 23, 2010 5:44 pm | Chris_McElligottPark | Assigned To | => Chris_McElligottPark |
| Dec 23, 2010 5:44 pm | Chris_McElligottPark | Status | new => minor fix for later |
| Dec 23, 2010 5:46 pm | Chris_McElligottPark | Note Added: 0006952 | |
| Dec 23, 2010 5:47 pm | TechSY730 | Note Added: 0006953 | |
| Dec 23, 2010 5:49 pm | TechSY730 | Note Edited: 0006953 | |
| Dec 23, 2010 6:02 pm | Chris_McElligottPark | Note Added: 0006960 | |
| Apr 14, 2014 9:28 am | Chris_McElligottPark | Category | Suggestion - General Idea => Suggestion - General |
| Apr 14, 2014 9:30 am | Chris_McElligottPark | Category | Suggestion - General => Suggestion |
