ugly skybox problem*solved*

[bearSoft]

Hallo
This jpg
[img=http://img368.imageshack.us/img368/7292/skyboxirr5qk.th.jpg]

shows a blocky uneven texture on the skybox.
I know i have had it mutch better.
What is it i forget to add to this :

Code: Select all

driver->setTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS, 1);
smgr->addSkyBoxSceneNode(
		driver->getTexture("../../media/skyup.jpg"),
		driver->getTexture("../../media/sky.jpg"),
		driver->getTexture("../../media/sky.jpg"),
		driver->getTexture("../../media/sky.jpg"),
		driver->getTexture("../../media/sky.jpg"),
		driver->getTexture("../../media/sky.jpg"));
//end skybox

tyia.

[Acki]

Try to disable mip maps...
what size are the textures ???
They have to be in the power of 2 !!!
2 * 2
4 * 4
8 * 8
16 * 16
...
1024 * 1024
or
1024 * 512
...

[bearSoft]

Hej Acki
Thanks for replying!
removing mipmap did not do anything
the img is 512*512
It is a bit strange because i have seen it mutch better. Now it look like that..
Almost like a hw isue, but nothing else (on the pc) is 'weird'
....i did upgrade irrlicht though... *argh!*
Could irr 9.0 have done this better..
Dont think i have done any skybox-experiments since 9.0
oh dear

[William Finlayson]

I get image problems like that when my desktop colour depth is set to 16bpp, I havn't really looked into it though, so I can't tell you the whys. I'll have to try it with different image formats to try and see if the problem is with the image loaders themselves, or it could possibly be a problem with the colour conversion for rendering.

[Acki]

Sometimes jpegs could be a problem, too (because of the compresson)...
Maybe you should try to convert the textures to bmp...

[MasterD]

With removing mipmap you are talking of this:
driver->setTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS, false);
just to not get you wrong.

In addition to that you can try to
driver->setTextureCreationFlag(video::ETCF_OPTIMIZED_FOR_QUALITY, true);
but in reference to the api:

But please note that the video drivers take this value only as recommendation. It could happen that you enable the ETCM_ALWAYS_16_BIT mode, but the driver creates 32 bit textures.

[bearSoft]

unfourtunately already a (big) bmp (should properly have used the textures from the terrain demo but the blue ones showed the problem more clearly)

substituting
driver->setTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS, 1);
with
driver->setTextureCreationFlag(video::ETCF_OPTIMIZED_FOR_QUALITY, true);
did not make any change

i'll try to reinstall some win-bluha-puba is proplerly the reason

thanks for all assistence!
----------------------------
edit -after reinstall it is just fine -added *solved* to topic
..unfourtunately i have no idea what caused the problem -wild gues: windows..