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Server reads decimal and converts machine binary code to actually process the command Probably the reason why filename sometimes do not work. Ok 1 more ASCII Character Table in decimal and binary suitable for use on Servers. That means less tiles need to be generated for each pano. Improvements to the rendering engine should allow larger sizes. When the final version of Pano2VR 4.5 is released I would like to test the tile size limits of various devices. Sticking to a tile size divisible by 4 avoids potential bugs. I chose the 512 size based on info from other forum post about devices crashing on larger sizes. Other mobile devices have even less memory and graphic resources. I would crash my phone some place above 800 pixels. I did not notice any change in responsiveness for different sizes.
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When I wrote this post I tested a variety of sizes on my 3 year old phone, a new tablet, and my Desktop PC. Now graphic cards can handle just about any size equally as well as long as it has enough memory. Older cards use to be as small as 64, but that is going back a couple decades.Īt a time graphic cards were much more efficient when working in their maximum tile size. Today's high end cards will have a maximum texture size 4096 and higher. The maximum tile or texture size of graphics cards will be a power of two. Keep adding new levels until you are around 400 to 600 to accommodate the smallest screens zoomed all the way out.Ģ71 rounded down to nearest number divisible by 4 is 268.Keep multiplied by 2 until back to or just under the original cube size.Round down to nearest even number (I like divisible by 4).Keep dividing by 2 until you are between 256 and 512.divide by 4 to preserve a 1:1 ratio of pixels at the edges of the cube but loose a little resolution at the center.divide by 3.45 to keep the same number of pixels.divide by 3.14 to preserve a 1:1 ratio of pixels in the center of the cube but overcompensate at the edge.Keeping the tiles small allow smart phones with limited memory to still be able to show the panorama. I tried several sizes from 100 to 800 and most devices handled then equally as well. I still make then divisible by 4 to be safe. Video cards seam to handle any small tile size well these days. It use to be, that 512 pixels was the best size for graphic cards to process data quickly but not necessary any more.