how to scale an 2dimage?

warren · Post by **warren** » Mon Jan 02, 2006 11:57 pm

hi,
i´m using iTexture to load an image from a file, and then draw2dimage to render it. But, no one version of this method allow to scale the image before render. I`d been searching on the forum for a similar question and for a relationed method on the reference guide... could somebody help me??

TNX!!

TreyOne Games · Post by **TreyOne Games** » Tue Jan 03, 2006 4:45 am

i believe that is covered in the tut's...ill check when i get a chance

sudi · Post by **sudi** » Tue Jan 03, 2006 11:14 am

u can't scale a 2d image! irrlicht doesn't support this.
But you could applay the image as a texture to a mesh and scale the mesh.

hybrid · Post by **hybrid** » Tue Jan 03, 2006 12:32 pm

What about

Code: Select all

        //! constructor
        CImage(IImage* imageToCopy,
                const core::position2d<s32>& pos, const core::dimension2d<s32>& size);

And there's also some resizing in CColorConverter. Nothing accelerated, though. Otherwise this would be done by textures which have to be of special sizes, yet. So in general not useful for this purpose.

warren · Post by **warren** » Tue Jan 03, 2006 1:17 pm

well...its hard to believe that there is no anymethod to do something so basic, but, right is that Irrlicht is specialized on 3d design...

I cant find CImage interfaze on the reference, because i´m using SDK 0.7 (dont ask me why

)
So, i´ll try to do it on a planar mesh and scale it.

Thanks for help me!!
grettings!!

Guest · Post by **Guest** » Wed Jan 04, 2006 6:06 am

Check out emils sprite class on irrforge wiki - it can do basically what you want (great smooth scaling/rotation at screen depth) which can be used for anything 2D. It uses relative scaling with floats compared to irrlichts ints which is why the scaling sucks out of the box on irrlicht.