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Perspective Starfield Test

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snail_Created:
Version:Size:1.9KB
Straight from the 1980s comes this classic effect! Also doubles as a stress test for SB. N3DS users: please provide performance stats in the comments!

Instructions:

Enter the number of stars when the program prompts you (128 is recommended for O3DS). The following inputs can be used while the test is running. A Button - Toggle Info Display B Button - Toggle camera modes: Auto and Freelook X Button - Return to star count prompt Circle Pad - Move camera when in Freelook PLEASE NOTE: controls may not be responsive at low framerates.
ProgramsToolsGraphicsTech Demo
brilliance360#1
I like the look of this! I have an N3DS, and no matter how many stars I picked, it ran at 59 FPS. Also, I got a divide by 0 at line 68 if I chose 1 star.
snail_#2
Replying to:brilliance360
I like the look of this! I have an N3DS, and no matter how many stars I picked, it ran at 59 FPS. Also, I got a divide by 0 at line 68 if I chose 1 star.
Odd, I'll check that out later. 59FPS even on 512 stars? N3DS must be juiced.
Archive#3
Veyr Nice! Can confirm 512 stars and 59 FPS. Just curious, what is the FPS with 512 stars on a regular 3DS?
snail_#4
Replying to:Archive
Veyr Nice! Can confirm 512 stars and 59 FPS. Just curious, what is the FPS with 512 stars on a regular 3DS?
It's only about 16FPS, which is a vast difference between systems.
DrZog#5
Entering 1 star gives div by 0 error on line 68 Just changing (STARS%-1) to (STARS%) seems to fix it.
12Me21#6
Are the stars sprites or GCIRCLE+GPAINT? I think sprites would be faster.
snail_#7
Replying to:12Me21
Are the stars sprites or GCIRCLE+GPAINT? I think sprites would be faster.
Yep, it's sprites. It's just that floating-point performance suffers a good deal on O3DS, for some reason.
Krondelo#8
Voted, great program Snail. It really looks quite nice and trippy. Even fun going into free cam and flying through the stars. Yep, confirm 59fps at 512 stars, I wonder how high it could go before dropping fps.
12Me21#9
Use SPOFS CALLIDX OUT SX,SY,SZ instead of SPVAR
chicken#10
Replying to:Krondelo
Voted, great program Snail. It really looks quite nice and trippy. Even fun going into free cam and flying through the stars. Yep, confirm 59fps at 512 stars, I wonder how high it could go before dropping fps.
512 is the max number of sprites lol
DrZog#11
Replying to:Krondelo
Voted, great program Snail. It really looks quite nice and trippy. Even fun going into free cam and flying through the stars. Yep, confirm 59fps at 512 stars, I wonder how high it could go before dropping fps.
I know this is a late reply but with vsync at 0, it achieves 64 FPS on N3DS on 3.3.0 (16FPS on old3ds under same conditions) So that's exactly 4x as fast. Wonder if Smileboom is using the 2nd appcore or L2 cache.
Komodo#12
I like it :)
snail_#13
Replying to:12Me21
Use SPOFS CALLIDX OUT SX,SY,SZ instead of SPVAR
SPOFS doesn't hold real numbers. Also, the vars store the star's position in 3D space, not display space.
MochaProbably#14
59 FPS 512 STARS N3DS