Possible problem in tile engine

[Ed .]

To reproduce:

- Open any image or paint something yourself.
- Select the perspective transformation tool from the toolbox (under the Move a Layer tool)
- Create the perspective quad. To create the perspective quad, click on the canvas on four different points such that you enclose a region. You should see some feedback after the second click.
- Transformed image has upper left corner missing!

Date: Tue, 19 Jan 2010 08:22:08 +0300
Subject: Re: Possible problem in tile engine
From: dimula73 at gmail.com
To: kimageshop at kde.org



On Tue, Jan 19, 2010 at 2:39 AM, Sven Langkamp <sven.langkamp at gmail.com> wrote:

On Tue, Jan 19, 2010 at 12:32 AM, Ed . <schumifer at hotmail.com> wrote:




While working on the perspective transformation tool I noticed that when transforming the image, the region of the upper left corner of the image went missing. After discussing the problem with CyrilleB, he noticed that the size of missing part was 64x64, which happens to be the size of a tile in the tile engine.





I decided to recompile Krita with the old tile engine, and sure enough, the problem disappeared.



It would be a good idea for someone with knowledge in this area to look into this. The relevant perspective code is in krita/plugins/tools/tool_perspectivetransform/kis_perspectivetransform_worker.cpp



This is a more general problem. See https://bugs.kde.org/show_bug.cgi?id=220234
I'm not sure how to reproduce that exactly.


Sven, how did you produced this file?Edward, how can i run perspectivetransform tool?
-- 
Dmitry Kazakov
 		 	   		  
_________________________________________________________________
Windows Live: Keep your friends up to date with what you do online.
http://www.microsoft.com/middleeast/windows/windowslive/see-it-in-action/social-network-basics.aspx?ocid=PID23461::T:WLMTAGL:ON:WL:en-xm:SI_SB_1:092010