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rendering woes

Started by fireking Oct 18, 2003 at 11:58 PM 6 replies 950+ views

Original Post

Oct 18, 2003 at 11:58 PM

bleh!!!!!!!!!!!!!!!!!!!!!!! ok had to get that out of my system... im using the code from "programming role playing games with direct x" written by jim adams, and i took his mesh level application from chapter 12, and im loading a direct x model of my own into it... here's the deal, it looks like total crap, and i dont know why here's the picture...

whats up with this? [edited by - fireking on October 19, 2003 1:00:15 AM]

billybob

Oct 19, 2003 at 12:03 AM

that is Z fighting. what are you using for your projection matrix values? near should be at least 1.0, far depends on your unit scale. or use a higher Z precision, but you shouldn''t have any trouble with a 16 bit z buffer.

fireking

Oct 19, 2003 at 2:57 AM

so basically i need to set the presentation struct to have the D3DFMT_D16 and clear the zbuffer in the frame procedure?

if so, thanks!

fireking

Oct 19, 2003 at 7:00 AM

its still messing up... zbuffer is definately enabled, i checked

GetRenderState(D3DRS_ZENABLE,&res);
if(res)
MessageBox(NULL,"TRUE","ZBUFFER ENABLED?",0);

any other suggestions?

Nik02

Oct 19, 2003 at 7:05 AM

Whether z-buffer is enabled or not wasn''t the point. Try setting a smaller ratio of your z-near and z-far planes when you construct your projection matrix. Especially the near plane should be set to as high as you can afford.

-Nik

emilk

Oct 19, 2003 at 7:05 AM

as billybob pointed out, check your values for near and far.
If your world is a room thats 10 meters wide, you should try with near = 0.1 and far = 20, or something similair (provided one unit is one meter).

fireking

Oct 19, 2003 at 7:07 AM

m_Graphics.SetPerspective(D3DX_PI/4,1.3333f,0.1f,10000.0f);

fireking

Oct 19, 2003 at 7:09 AM

OH! now i see! i set it to 10.0f, and everything is fine! now i just have to figure out why my guy is moving all twitchy-like (its the new word for the day), some of this dood''s code is broken

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