Sorry, I push it to the wikipedia feedback.

And you've right, I've only this flashing background on my emul nullDC not on Demul. Certainly because of the old version of NulllDC.

I finally tried.
I just worry that the background has flash between grey and black. But perhaps it comes from my emulator. I should test it on a real Dreamcast.
But for now I just added an image in the background.

Without and with background

I'll test as soon as possible.

I need to re-install 64 bit Linux OS because texturepacker need it.

It's amazing.
Thanks for your code, it'll really help the community. And me

OK. I will keep my code for 3d futur games.

I'll make some test with paletted texture.

Thanks, you save my life

I'm very patient

I have make some new tests with kmg. With 4-bit, 8-bit, 24-bit png with and without transparency. And after with another version of vqenc to verify my compiled version. And optimize with optipng. I always have the bad compression quality on screen like you see on the picture. Left Png, Right Kmg htt...

Sorry, I'm talking about the quality of the picture not the size. The size is the good point of the kmg picture. The problem come from the rendering on the screen. I use the code you upload on the compression/size post. For having the same result for every test and the compress vqenc : $(KOS_BASE)/u...

Yes, I have made some tests and the output it's not quite as good as tga/png format.
I will post some pictures to show my result.
Some developer think kmg is for 3d object texture and not for sprite. Maybe I've made something wrong, again.

I have several textures or spritesheet who can not enter into the vram simultaneously. Png Texture for the background level and spritesheet for 2 players and ennemies. I wish load some ennemies spritesheet in ram (16Mo) and copy them in Vram for showing new ennemy. The function "pvr_txr_load&qu...

Thanks very very much. It's wonderful.

I'll continue my dev with loading a full pack of texture to know how much I can upload in DreamCast Memory and draw on screen.
I am the happiest man on earth.

Please, help me. Can anybody make me a .kmg file from this png to test. http://i84.servimg.com/u/f84/18/89/68/64/fruit10.png As you can see. On the left OpenGL version of .vq file (vqenc -t -v fruit10.png) On the right, pvr version with .kmg file (vqenc -t -k -v fruit10.png) http://i84.servimg.com/u...

Thanks for answer me. I'll begin with vqenc rather than texconv. Texconv compress more but I don't think pvr can read directly from texconv. I use vqenc -k -t image.name. All I have to do now is finding a way to draw kmg at the screen. :mrgreen: I'll look at palette after if I want to make some effe...

I agree with that. As I'm new, I will certainly ask the same questions again, but I make some search before on forum :mrgreen: I think Compiling KOS on Windows will be great for other newcomers. The biggest problems for me are video memory occupation and drawing texture with 16,8,4-bit. And Threadin...

I'm trying to load texture made with texconv without success : http://i84.servimg.com/u/f84/18/89/68/64/back1_10.jpg #include <kos.h> #include <png/png.h> /* textures */ pvr_ptr_t back_tex; pvr_ptr_t front_tex; /* init background */ void back_init() { back_tex = pvr_mem_malloc(512 * 512 * 2); png_to...

I test compression with texconv on Linux. I have weird result with 8-bit png image : http://i84.servimg.com/u/f84/18/89/68/64/dragon10.png TGA = 192 ko PNG 8 bit (256c) = 1ko Tex = 10ko (pal8bpp) Tex2 = 18ko (rgb565) For Tex file, I use "texconv --in dragon_walk.png --out dragon.tex -format PAL...

I reinstall a fresh version with the bogglez script. I had a few problems that I solved. I begin with install of gcc/g++ 4.9 . And the Script crash when downloading zlib-1.2.8.tar.gz, I need to compil the kos-ports with root account. But now I have the last version. For the Makefiles, you've right f...

OK. So I will look into the Doc and the threading examples.
Thanks.

Yes, you can load data from CD without freezing the game. Regarding compression, these forum post of mine should be of help to you: http://dcemulation.org/phpBB/viewtopic.php?f=29&t=103833&hilit=vq+texture+strided+texture#p1049094 http://dcemulation.org/phpBB/viewtopic.php?f=29&t=103369...

Hi, I have question about the video ram because I wish to make a 2d game with lot of sprites. I know the video ram is limited to 4Mo. Can I load data from CD to vram while the game is running whitout freeze ? Like Change the sprite image in different part of the same level. May I compress the pictur...