Error with Mac APP

[Kyo]

Could always subtract 0.5 from x1 and y1 - that works!

I test with this value:

Code (glbasic) Select Expand


IF i = 1 THEN x = 0
IF i = 2 THEN x = 299.5
IF i = 3 THEN x = 599.5


and with this:

Code (glbasic) Select Expand


IF i = 1 THEN x = 0
IF i = 2 THEN x = 300.5
IF i = 3 THEN x = 600.5


But if I scroll the BG (Left and Right arrow Keys) I see the black line!

you could also convert it to integer to make sure its dosent get somewhere a float, which often seen the issue. This is was im do when im scaling my game to make sure you dont seen black lines.

can been done something like x=INTERGER(x)

I do not understand how it should work, but i test with:

Code (glbasic) Select Expand


IF i = 1 THEN x = 0
IF i = 2 THEN x = 300
IF i = 3 THEN x = 600
x=INTEGER(x)
av_x =INTEGER(av_x)
z_drawstage( i,x + av_x,0)


But the line black remains.

Please test directly in my example, and post me the code!
I'm stuck on this problem for 3 days... 

[MrTAToad]

Try this :

Code (glbasic) Select Expand

        x1=(x_offset+(x*xzoom)) * Scale# - 0.5
        x2=(sx*xzoom) * Scale#
        y1=(y_offset+(y*yzoom)) * Scale# - 0.5
        y2=(sy*yzoom) * Scale#

[Kyo]

Try this :

Code (glbasic) Select Expand

        x1=(x_offset+(x*xzoom)) * Scale# - 0.5
        x2=(sx*xzoom) * Scale#
        y1=(y_offset+(y*yzoom)) * Scale# - 0.5
        y2=(sy*yzoom) * Scale#

If you test in my example, you'll see that in the beginning, it seems correct, but if you move the BG you can see the black line!

Please test with my example! 

[Qedo]

Tell a banality. Have you tried Power of Two image?
try with 256x256 image.
I can not verify because I have not a MAC.
Ciao

[Kyo]

Tell a banality. Have you tried Power of Two image?
try with 256x256 image.
I can not verify because I have not a MAC.
Ciao

It's possible to work but I have almost finished to make my game, and all my stages are not Px2 Sprites!
The only system to work without problem on a mac it's to inser this 2 lines of code directly in gl_b source code.

Please Kitty Hello (Gernot) insert in source code this 2 line:

Code (glbasic) Select Expand


                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);// Changed \\
                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);// Changed \\


I wait you for release my game! 

[MrTAToad]

It will be hard to position due to scaling unfortunately.  It looks like STARTPOLY texture mapping system with glTexParameteri.

A power of two texture would help though

[Kyo]

It will be hard to position due to scaling unfortunately.  It looks like STARTPOLY texture mapping system with glTexParameteri.

A power of two texture would help though

It's impossible to change all sprites of my game ....

[MrTAToad]

Use :

Code (glbasic) Select Expand

WHILE TRUE
SMOOTHSHADING FALSE
IF KEY(203) THEN av_x = av_x + 3
IF KEY(205) THEN av_x = av_x - 3

FOR i = 1 TO 3
IF i = 1 THEN x = 0
IF i = 2 THEN x = 300
IF i = 3 THEN x = 600

z_drawstage( i,x + av_x,0)
NEXT

SHOWSCREEN
WEND

That works fine with scrolling

[Kyo]

Use :

Code (glbasic) Select Expand

WHILE TRUE
SMOOTHSHADING FALSE
IF KEY(203) THEN av_x = av_x + 3
IF KEY(205) THEN av_x = av_x - 3

FOR i = 1 TO 3
IF i = 1 THEN x = 0
IF i = 2 THEN x = 300
IF i = 3 THEN x = 600

z_drawstage( i,x + av_x,0)
NEXT

SHOWSCREEN
WEND

That works fine with scrolling

Work fine, the problem it's the gfx... are horrible .... 

the pixels are shelled, ruined (I don't know how to explain)  ....

[MrTAToad]

Its mainly due to the anti-aliased text.  Unfortunately anti-aliasing is unpredictable with scaling.

If you really need anti-aliasing, then you may need to take into account the slight gap or see if Gernot adds in some clamping stuff.

[Kyo]

Its mainly due to the anti-aliased text.  Unfortunately anti-aliasing is unpredictable with scaling.

If you really need anti-aliasing, then you may need to take into account the slight gap or see if Gernot adds in some clamping stuff.

I send a private message to Kitty Hello .... and now I wait and I pray .... 

[Kyo]

Other problem in Mac
1) if ISMUSICPLAYING() = TRUE then STOPMUSIC  the music dosn't stop!
2) MUSICVOLUME  don't work!
3) PLAYSOUND(num%, pan#, volume#) with WAV don't work!

Shit Mac! 

[Schranz0r]

If i understand right you have a problem with youre textures... it's called "Texturebleeding"

GLB use on glTexParameteri for Texture2D GL_LINEAR, what you need is to change to GL_NEAREST !
Should solve youre problem...

[Moru]

If I remember right, can't find the source right now:

Many old grafics-cards do not support images in arbitrary sizes, they only support SQUARE sizes at power of two. This means 64x64 is ok, 256x256 is also ok. However, 300x301 is not ok. To fix this, GLBasic will resize the working surface to 512x512 and fill the rest of the image with 0. When you use anti-alias to make your edges smooth, the grafics card will pick the average of the colors between your image and this black border.

There is methods for getting around this, one is to disable anti-alias. Not so sure of the others since I haven't been doing this for years but at one time I got around it by setting the texture pixel size 0.5 or 0.75 pixels smaller than the actual image with polyvectors. Not sure if this hack works in the newer versions of GLBasic.

[Kyo]

If I remember right, can't find the source right now:

Many old grafics-cards do not support images in arbitrary sizes, they only support SQUARE sizes at power of two. This means 64x64 is ok, 256x256 is also ok. However, 300x301 is not ok. To fix this, GLBasic will resize the working surface to 512x512 and fill the rest of the image with 0. When you use anti-alias to make your edges smooth, the grafics card will pick the average of the colors between your image and this black border.

There is methods for getting around this, one is to disable anti-alias. Not so sure of the others since I haven't been doing this for years but at one time I got around it by setting the texture pixel size 0.5 or 0.75 pixels smaller than the actual image with polyvectors. Not sure if this hack works in the newer versions of GLBasic.

For old card you have right, but now the low card on PC it's HD4000, I don't think today it's a problem to clamp a texture on Polys!
How to setting the pixel 0.5 or 0.75?

If i understand right you have a problem with youre textures... it's called "Texturebleeding"

GLB use on glTexParameteri for Texture2D GL_LINEAR, what you need is to change to GL_NEAREST !
Should solve youre problem...

I think the command to change is GL_CLAMP_TO_EDGE, and I hope to possible to do (with a flag for on/off)!