Extern 2D-Library

fcloud · Post by **fcloud** » Fri Feb 20, 2009 2:24 pm

BlindSide wrote:How bad is the deformation? Can I see a screenshot?

Oh, e.g. when a CSprite of rectangle rotatoins, the result looks a rhombic.
[img]file:///E:/002.JPG[/img]

Sorry, I can't paste an image.

origin:
---------
| |
---------
result:
______
\ \
---------

Can you work out this explanation?
OK, The tested picture is media/001shot.jpg. Please you do a test like this. The rotation's degree is 5.0f.

hybrid · Post by **hybrid** » Fri Feb 20, 2009 2:28 pm

No local files, you have to upload it somewhere

fcloud · Post by **fcloud** » Fri Feb 20, 2009 2:56 pm

hybrid wrote:No local files, you have to upload it somewhere

Hello, hybrid.
It's very inconvenient that we can't upload images directly. Save the storage's space?

BlindSide · Post by **BlindSide** » Fri Feb 20, 2009 3:14 pm

For future reference you can use this.

hybrid · Post by **hybrid** » Fri Feb 20, 2009 5:18 pm

SF doesn't allow for direct uploads, but the possible abuses would make it pretty dangerous anyway.

geckoman · Post by **geckoman** » Fri Feb 20, 2009 5:49 pm

Ok the problem is that with rotating the image it deforms because the aspect ratio does NOT rotate.
I did not recognize it coz I use it just as a Background.

fcloud · Post by **fcloud** » Sat Feb 21, 2009 12:07 am

rotate 0.0f

rotate 5.0f

BlindSide · Post by **BlindSide** » Sat Feb 21, 2009 1:36 am

Huh, it's just rotated, I don't see the problem! Rotation always results in this kind of distortion unless you anti-alias.

geckoman · Post by **geckoman** » Sat Feb 21, 2009 1:12 pm

Not Rotated see its widescreen:

Rotated 90.0f, it should be higher than wide, but its not.

BlindSide · Post by **BlindSide** » Sun Feb 22, 2009 3:22 am

I see now, yeah I guess it's the aspect ratio.

You can see I am zeroing out the view matrix:

Code: Select all

 driver->setTransform(irr::video::ETS_VIEW, matrix4());

Where infact I should create one with 0,0,0 position and 0,0,1 target and 0,1,0 up vector and set a proper aspect ratio in respect to the resolution given by driver->getCurrentRenderTargetSize.

Cheers

BlindSide · Post by **BlindSide** » Thu Jul 09, 2009 3:18 am

I updated the CSprite thing to get rid of aforementioned problems and added some helper functions that allow setting the vertex colors/alpha for tinting, etc.