Dividing a texture into new textures

Graphics and GPU Programming Programming

Started by asvsfs January 26, 2011 11:09 AM

2 comments, last by asvsfs 13 years, 2 months ago

157

Author

January 26, 2011 11:09 AM

Hello everybody,

my question is how can i divide my sprite into (for instance) 4 sprites, for example i have a circle and i want to divide it into 4 unequal pieces
and every new sprite would be a quad with texture on it,

i want an efficient way for doing it

Thx ,
Regards

asvsfs

157

Author

January 26, 2011 12:03 PM

another way i thought is maybe i could define every thing in world as a polygon with triangles ,
and when i want to divide an object i just create new polygon and with triangulation make new triangles to render

i don't know which way is more efficient,

Danny02

279

January 26, 2011 02:48 PM

the fastes way would be to just replace your spirit geometry, with 4 new geometrys.
Either threw calculations or with prcalculated geometry.

This has the possitiv effect that u don't need to copy the texture data around, you can use the same texture for everything.

asvsfs

157

Author

January 26, 2011 07:42 PM

the fastes way would be to just replace your spirit geometry, with 4 new geometrys.
Either threw calculations or with prcalculated geometry.

This has the possitiv effect that u don't need to copy the texture data around, you can use the same texture for everything.

could you give some details about it?

Dividing a texture into new textures

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