Shadows/Lights example?

("shadow" is a modifier volume in "cheap shadow" mode)

I'll probably write some PVR tutorials eventually (if nobody else will), once I finish my game (not gonna happen soon)

Short answer: learn C(++). Longer answer: - programming for dreamcast (or any other "retro console") is very hard (next to impossible if you have no programming experience at all). Even building KOS on its own is not easy (if you use Windows), so you should start with that and see if you c...

I just need a function to tell me roughly how much memory is left and then I can probably figure out what's going wrong. copypaste from my framework (based on that openbor code): /*////////////////////////////////////////////*/ #include <malloc.h> static unsigned long systemRam = 0x00000000; static...

I'll look at the PNG loading code again before sending code. it's probably the case, I've already encountered something like this: http://dcemulation.org/phpBB/viewtopic.php?f=29&t=104054 Do you know if there's a function like pvr_mem_available() or any thing else useful I could use to keep tra...

try this guide:
http://www.dcdev.org/howtos/compile-kos.htm

worked (almost) perfectly for me (aside from kos-ports part, you should manually build whatever you want with "make install clean").

I was going to join, but unfortunately I don't think I will be able to meet the deadline. I do have something playable already, but I don't want to release it as "rushed tech demo with poor presentation". But we'll see. also, this: http://dcemulation.org/phpBB/viewtopic.php?f=34&t=104010

...indeed, fixing it took just as much as adding to the end of glTextureLoadPVR()

Thank you so much! You're a life saver.

While browsing example programs, I noticed that after loading textures using glTextureLoadPVR() there was no code to unload them. I thought it was like this simply because it was not needed for such small demos. So I tried to use glDeleteTextures(), but it does not seem to work at all. And the quest...

I commented that out, because it's invalid OpenGL (those constants don't exist). Seems like KGL accepts this, although it shouldn't.. it works just fine though. I did not do this on purpose really, it was copy-pasted from the examples. And since I did not receive any compilation errors, I just left...

bogglez wrote:Is this more like what you expected?

aside from missing texture filtering - yes.

("lvl.obj" is still rendered incorrectly though, no clipping issues, it is just does not look the way it should)

Opengl32.lib is your AMD driver, so you're already doing that (as you said in your previous post). Does the result look correct on Windows? Nobody here said you're stupid or doing it wrong. I suggested the comparison with Windows to find out where the problem is. We've never seen this problem in ot...

Make a Windows executable that links to nvidia/ATI drivers. If the windows executable also looks bad then your program is definitely at fault. I use visual c++ and link with opengl32.lib and glu32.lib. What do you mean by "link to nvidia/ATI drivers"? I have an AMD GPU, if that matters. I...

Have you considered creating a Windows/Linux executable and comparing that to the Dreamcast executable? That would make sure the opengl implementation is correct. ... but isn't KGL is a wrapper for pvr api? How is it possible to build windows executable with it? And if it was not clear, I do develo...

Can you optimize your code to use arrays instead of immediate mode? I am curious if that changes anything, as you can see I have written 2 source files to handle each case uniquely. tried that. Same result. You can change that value and do a clean re-build of the lib to change the NearZ Clipping Pl...

So I've read this: http://gamedev.stackexchange.com/questions/67886/why-nearby-triangles-tend-to-disappear and this: http://stackoverflow.com/questions/7378632/frustum-plane-calculus From one of the answers, I guess current KGL implementation is done this way: if any point in the polygon falls behin...

No, this is not exactly a skeletal animation (I almost implemented it first, but I had some troubles with exporting\assigning skinning data the way I wanted (only 1 bone per vertex with weight = 1), so I went for a simpler approach). It's an "object transform" animation (used in games like...

You need to enable NearZ Clipping: glEnable(GL_KOS_NEARZ_CLIPPING); just tried that. Still no luck :( glEnable(GL_KOS_NEARZ_CLIPPING); glBegin(GL_TRIANGLES); msh_render_IM(&msh_player); /* there is no glBegin() in that routine, only IM calls*/ glEnd(); /* glDisable(GL_KOS_NEARZ_CLIPPING); <----...

Setting z to a higher value will cut off even more geometry, since the clipping plane will be further forward. yes, that's exactly what I expected to see. But as I said, almost nothing changed. I'd try reducing 1000.f to a smaller value. The interval of 0.1f to 1000.f can cause some precision issue...

Split to it's own topic. No need to try too hard to find an appropriate topic when you have a question that doesn't fall neatly into another topic. 111, it's ok to open an own thread. ok, got it. Your camera's near plane is colliding with the geometry. Basically the ground is trying to stick out of...

=============================== Not sure if it is an appropriate thread (couldn't find anything like "general KGL thread"), but here goes... I have some weird (clipping?) issues. Here is a test scene: http://i.imgur.com/eSDrkPn.jpg sometimes it looks fine (especially when camera is zoomed ...