Maratis forum - Fullscreen shaders and effects.

Re: Fullscreen shaders and effects.

dummy@example.com (Petr) — Thu, 06 Sep 2012 06:21:03 +0000

Thanks!
From which object should I obtain the current FPS?

About post-processing:
Since I used SCREEN_WIDTH * SCREEN_HEIGHT (768 * 1204 on iPad , 640*960 on Retina iPhone ) as texture dimensions, I added

render->setTextureUWrapMode(M_WRAP_CLAMP);
render->setTextureVWrapMode(M_WRAP_CLAMP);

render->createTexture(&m_depthTextureId);
render->bindTexture(m_depthTextureId);
render->setTextureFilterMode(M_TEX_FILTER_NEAREST, M_TEX_FILTER_NEAREST);
render->texImage(0, SCREEN_WIDTH, SCREEN_HEIGHT, M_UINT, M_DEPTH, 0);

after render->bindTexture(m_depthTextureId);

Re: Fullscreen shaders and effects.

dummy@example.com (anael) — Wed, 05 Sep 2012 15:02:22 +0000

To draw text on top of your game you can use a text object (MOText) in a separate scene.

In cpp like this : http://www.maratis3d.org/?p=563
Or in script (it's a new feature) : http://wiki.maratis3d.org/index.php?tit … ameraLayer

Re: Fullscreen shaders and effects.

dummy@example.com (Petr) — Wed, 05 Sep 2012 14:52:07 +0000

About performance - what is the best way to display FPS on screen?
I want to see it during development of my app.
Other statistics are also useful.

Re: Fullscreen shaders and effects.

dummy@example.com (anael) — Wed, 05 Sep 2012 10:37:01 +0000

Cool ! can we see a screenshot ?
how is the performance ?

Re: Fullscreen shaders and effects.

dummy@example.com (Petr) — Wed, 05 Sep 2012 08:26:20 +0000

I added post-process DoF to iOS example.

Re: Fullscreen shaders and effects.

dummy@example.com (anael) — Tue, 04 Sep 2012 09:53:08 +0000

Nice, thanks,
I'll try to modify all examples to use M_UINT to be cross platform.

Re: Fullscreen shaders and effects.

dummy@example.com (Petr) — Mon, 03 Sep 2012 14:21:26 +0000

Ok
For retina support I added
self.contentScaleFactor = [UIScreen mainScreen].scale;
in initRenderingContext in EAGLView,

#define SCREEN_WIDTH ( [UIScreen mainScreen].bounds.size.width * [UIScreen mainScreen].scale)
#define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height * [UIScreen mainScreen].scale)
to MyGame , and change all occurrences of screenWidth/ screenHeight and RESOL macro with these macroses.
Its now works on Retina.

I've also found a bug on iPad 1 with iOS 4.3.3, where short after launches program crashes with EXC_BAD_ACCESS.
I will deploy my app on 5.* and newer firmwares, so I leave this bug for now.

Re: Fullscreen shaders and effects.

dummy@example.com (anael) — Mon, 03 Sep 2012 13:58:25 +0000

Hi,

well done, thanks,
that's a bit strange they changed the support of this,
so it will also need to be changed in MiOSStandardRenderer.cpp for the shadow texture

Re: Fullscreen shaders and effects.

dummy@example.com (Petr) — Mon, 03 Sep 2012 13:22:38 +0000

I change M_UBYTE to M_UINT
render->texImage(0, RESOL, RESOL, M_UBYTE, M_DEPTH, 0); , and program began to work.
Now project works on 4.3.3 and 5.1 devices, and on simulator.
On Retina display, image takes only quarter of screen.
I will fix this now, and then I'll start to add Depth of Field to this app

Re: Fullscreen shaders and effects.

dummy@example.com (Petr) — Mon, 03 Sep 2012 09:52:12 +0000

I add glBindFramebuffer(GL_FRAMEBUFFER, defaultFramebuffer); at start of the resizeFromLayer: , and buffers are created on 5.*
Now I have to deal with 0x500 in render->texImage(0, RESOL, RESOL, M_UBYTE, M_DEPTH, 0); in MyGame.

Re: Fullscreen shaders and effects.

dummy@example.com (Petr) — Mon, 03 Sep 2012 09:05:32 +0000

I've found that
glCheckFramebufferStatus(GL_FRAMEBUFFER) returns error after

glBindRenderbuffer(GL_RENDERBUFFER, colorRenderbuffer);
[context renderbufferStorage:GL_RENDERBUFFER fromDrawable:layer];

in resizeFromLayer: in ES2Renderer.

Re: Fullscreen shaders and effects.

dummy@example.com (Petr) — Mon, 03 Sep 2012 08:13:15 +0000

I not found the error for now.
I tried to compare initialization code in maratis ios project with initialization code in Cocos2D v 2.0.
In Cocos2d 2.0 init and creation of ramebuffer (with depth attachment) is ok both on 4.* and on 5.*.
Code in both projects looks equally, but in maratis I still have " Failed to make complete framebuffer object 8cdd" in glCheckFramebufferStatus(GL_FRAMEBUFFER).
I think that reason may be in maratis 3d code, which executed between calls to [ES2Renderer init] and [ES2Renderer resizeFromLayer:]
I will try to find it now.

Re: Fullscreen shaders and effects.

dummy@example.com (Petr) — Fri, 31 Aug 2012 13:43:58 +0000

On iOS 5.* I also get 0x8cdd (GL_FRAMEBUFFER_UNSUPPORTED) in glCheckFramebufferStatus(GL_FRAMEBUFFER) in

- (BOOL) resizeFromLayer:(CAEAGLLayer *)layer;

in ES2Renderer.mm.

Re: Fullscreen shaders and effects.

dummy@example.com (Petr) — Fri, 31 Aug 2012 13:03:39 +0000

On 4.3 devices all is ok.
On iPhone 4 (with retina display) image occupies a quarter of the screen (I think I must set contentScalFactor somewhere)

Re: Fullscreen shaders and effects.

dummy@example.com (anael) — Fri, 31 Aug 2012 12:54:59 +0000

thanks