How to design a fullscreen graphic within the dimension restraints?
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Let''s say I want a splash screen for my game and the screen is running at 640x480, should I make a 512x512 image and stretch it, or should I make a 1024x512 image and only use the first 640x480 pixels? Another way still, should I just divide the image up into smaller and smaller images (512x256,128x64,32x16, etc) to make the fullscreen image?
MindEngine Development
http://medev.sourceforge.net
What''s wrong with just using a 640x480 image?
dunghill.dk - desensitized homepage - desensitized project page
dunghill.dk - desensitized homepage - desensitized project page
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quote:Original post by geekster
What''s wrong with just using a 640x480 image?
dunghill.dk - desensitized homepage - desensitized project page
Images must be stored in powers of 2 (eg. 32x32, 64x64, 256x256, 128x512, 1024x32, etc)
MindEngine Development
http://medev.sourceforge.net
I made an 800x600 background image (my game''s resolution), then I did the following calculations to fit into a 512x512 texture:
ratio = 512 / 800 = 0.64
width = 800 * ratio = 512
height = 600 * ratio = 384
I then scaled down the picture to the size of width and height, and I saved it into a 512x512 texture. Of course there was this unused area of 512x128 pixels, but I could put some other small textures onto it conserve memory.
ratio = 512 / 800 = 0.64
width = 800 * ratio = 512
height = 600 * ratio = 384
I then scaled down the picture to the size of width and height, and I saved it into a 512x512 texture. Of course there was this unused area of 512x128 pixels, but I could put some other small textures onto it conserve memory.
Unwise owl: you''re losing valuable pixel data that way.
You can just scale the 800x600 image unproportionally down to 512x512 and display it scaled back accordingly. Why waste pixels?
You can just scale the 800x600 image unproportionally down to 512x512 and display it scaled back accordingly. Why waste pixels?
I don''t waste all of those pixels as I stated, I have a lot of smaller UI buttons one that space. But you''re right I could scale it unproportionally though, but I''ve got a strange distaste for that. ;(
quote:Original post by neurokaotixquote:Original post by geekster
What's wrong with just using a 640x480 image?
dunghill.dk - desensitized homepage - desensitized project page
Images must be stored in powers of 2 (eg. 32x32, 64x64, 256x256, 128x512, 1024x32, etc)
MindEngine Development
http://medev.sourceforge.net
Only if you're using 3D textures, I don't think that restriction applies to surfaces in ddraw.
[edited by - mbrown211 on January 16, 2004 12:19:36 PM]
Pixels are cheap and math is easy. Draw it whatever size makes sense artwise. Pad the texture to be powers of two. Use the subtexture that fits your splash screen size exactly pixel for pixel (tiling if you have a POS video card).
Since it''s for your splash screen, throw it all out when you are done.
Since it''s for your splash screen, throw it all out when you are done.
Author
quote:Original post by mbrown211quote:Original post by neurokaotixquote:Original post by geekster
What''s wrong with just using a 640x480 image?
dunghill.dk - desensitized homepage - desensitized project page
Images must be stored in powers of 2 (eg. 32x32, 64x64, 256x256, 128x512, 1024x32, etc)
MindEngine Development
http://medev.sourceforge.net
Only if you''re using 3D textures, I don''t think that restriction applies to surfaces in ddraw.
[edited by - mbrown211 on January 16, 2004 12:19:36 PM]
I don''t use DirectDraw.
MindEngine Development
http://medev.sourceforge.net
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