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slyprid

[.net] Texture size for tilemaps in Direct3D

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I was wondering if there is a standard max size for a texture on the majority of the video cards out there. I noticed my GeForce supports up to 4096x4096, but my ATI card only supports up to 2048x2048. I was wondering if it would be feasible to stay with 2048x2048 textures for tilemaps, or go with 1024x1024? The only reason I was going with larger tilemaps is that I can group all my tiles together in one texture and not have to worry about batching. Thanks for your time. Slyprid

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You could even check the max size runtime and split (or combine) the textures as fitting...

Cheers

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How would you go about checking the max size of a video card? Was looking for this the other day, but to no avail.

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You use the Device.Caps.MaxTextureHeight and Device.Caps.MaxTextureWidth:

int adapterOrdinal = Manager.Adapters.Default.Adapter;
caps = Manager.GetDeviceCaps(adapterOrdinal, DeviceType.Hardware);
int maxTextureHeight = caps.MaxTextureHeight;

Cheers

BTW: Assuming that you are using DirectX (Language = C# but is more or less the same in C++)

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