Bitmaps and textures

ondesic · Sep 7, 2011

I have written a few heavy graphics programs. I know that during the rendering cycle, if you switch textures you take a performance hit. Therefore I would try to have all graphics confined to a texture sheet, then take portions of the large texture to make my sprites.

My question is: If I had all my graphics on one sheet and loaded it to a bitmap, then used LoadBitmapSample, would this speed up my program?

thedesolatesoul · Sep 7, 2011

I would say yes it should speed up the program since there will be less disk access.
However, you will need more memory to load up the bitmap (which will put a lower limit on the memory a device needs to run your program).

But this is just from a naive persons perspective. Someone with more insight can answer better.

ondesic · Dec 26, 2011

My idea didn't work as LoadBitmapSample is different than I thought.

How can I load a large image with all my graphics in it, then assign portions of that bitmap to make my buttons?

Thanks

Erel · Dec 27, 2011

You will need to manually draw the button's background (with Canvas object). There is no other way to do it.

Have you tried the performance of using small bitmaps? I expect it to run quick enough.

Bitmaps and textures

ondesic

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thedesolatesoul

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ondesic

Active Member

Erel

B4X founder

Bitmaps and textures

ondesic

Active Member

thedesolatesoul

Expert

ondesic

Active Member

Erel

B4X founder

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