decal problems

I'm having problems with decals since I've started working with A8.
First I've faced problem with decal shadows, it looks like they have ZNEAR flag set on them
And this happens with particles as well, they disappear if there is a decal shadow on the background.
Another problem with decal that I've faced, is that they really have ZNEAR flag set on sometimes
One more problem I've faced is this one:
All sprites have proper alpha channel, and it worked flawlessly with A7, so there is nothing wrong with script and sprites as well.
I wonder how can I fix this problems. Waiting for advices.

Do you have a Radeon graphics card?

Nope, but I've faced this problem on both NVIDIA and Radeon cards.

your particles are transparent.
use alpha check material from wiki to solve problem...

Non of my particles, models or decals which you can see on the screens are transparent.

Did you change the camera.clip_far or clip_near. Changing any of those could result in inaccurate zsorting.
BTW, I though decals are only for commercial version and above

They work pretty well with beta version as well, as you can see on the picture
I've changed them to "camera.clip_far = 2000;" and "camera.clip_near = 0;"
It used to work perfect with A7, but I have no idea why it looks like this with A8.

Last pic looks like z-beating
Have you tried to use hit.nx / ny / nz to move the decals 0.1 quants away from the wall towards the player? That works for me.

When I place singe decal, it looks perfect. But when I place more than one and on the same position (as on the pictures) they get messed up.

Some one copied my thread?

No, it was moved to the appropriate forum. I've experienced a similar behaviour/ problem, so I'm interested in the solution, too.

you use transparence...
Your bullethole is not square, it is round
so your border is transparent and you get problems with z-order...

try to use the material, only for testing
i know this problem...

That isn't a transparency! That is alpha channel I've made in photoshop! Or am I missing something? What about models? Are they transparent as well?

if entity has an alpha channel - it's considered transparent and is rendered after all opaque entities, besides it's depth-sorting is not pixel accurate. if your sprites have equal distance from the viewport - you'll experience 'z-fighting', which is noticeable on your screenshots. try assigning alphacheck material to them.

And what's the reason for the following problem 3run has already posted above?

that could also be an alpha-sort problem...
i know this problem from 32bit alpha channel textures with terrains

i saw this, but i cannot neither confirm nor comment this. the statement that it appeared only in A8 makes me think this one is a bug, while other images show a common effect, that can be noticed even in commercial products.

z-fighting, that caused by zbuffer inaccuracy, that caused by his change to camera.clip_far = 2000

@3run: try to remove those line that change the camera.clip_...

Reducing the clip_far to 2000 should increase the accuracy, right?

Ok, I see:
"camera.clip_near = 0;"
0 is an invalid value, because that would mean a divison by zero. Keep the value above 0 (or >= 1 as the manual suggests).

OK, I've set "camera.clip_nera = 1;" but this problems still appear.
Shadow969@ only decal sprite has alpha channel, pistol's model doesn't have one, so it isn't transparent, or am I wrong?
I'll try to apply material from Wiki, let's see how it'll go. I've mentioned this problem a long time ago, it was just ignored.

Theoretically yes,decreasing the clip_far and increasing the clip_near can increase the accuracy as stated by the manual. But I found that it works the opposite way, increasing the gap between them give me the better result, in fact, I'd just use the default value(by not setting any of them) for the best result.

For 3run's problem, there's a possibility that the sprite is zneared somehow, how about resetting znear flag each frame, just to see the result?

I've tried that bart_the_13th, but no way for it to be reseted.

So, ok I've tried material from Wiki, I'm not surprised, here are results:
I didn't make particle and models screens, they are just same as well. BTW "camera.clip_near" is set to "1"

i guess it's time for a bug report then.

Ok, so I've made a thread under "Bug Hunt" forum, lets see how it will go, I hope they wont tell anything about workaround...