skybox

[kristy]

Hi, I am trying to build a skybox, but it won't work. I assume that it is because of usualy in openGl I use glFrontFace(GL_CW);, but it seems that it won't work here, or I am doing smth wrong. Can anyone help me? maybe an example on how I can build a skybox by using jpct-AE?

[EgonOlsen]

The util-package of the latest "unofficial" version contains a skybox class. There's no javadoc generated for it yet, but it should be more or less self-explanatory.

[Thomas.]

I replaced my skydome for skybox from jPCT... 5 textures are 1024*1024 and one has 16*16 (down), all has 800kb... I do not know what exactly does engine with textures but without skybox app takes 24mb in RAM and with 44Mb, is it too much??

[EgonOlsen]

No, not 800k. That might be the compressed file size for a jpg, but in memory, they have 1024*1024*4 bytes each, i.e. around 4mb per texture. So 5 textures of that size means 20mb of data on the gpu plus the (maybe compressed) size that they need in main memory to backup the data in case of a context switch. 1024*1024 is a bit too much for a mobile device IMHO.

[Thomas.]

Thanks for the explanation