[SOLVED] ogl-es branch, shader driver (2), not rendering

darkphoenix16 · Post by **darkphoenix16** » Tue Apr 26, 2011 10:10 am

Hey,

I've been working with ogl-es for the past 4 months. I just switched from the 1.1 driver to the 2.0 driver. The 1.1 driver was becoming slow on my PC, not sure why.

I changed the shader path from "../../media/Shaders" to "data/shaders" in the irrlicht config header. The new path corresponds to the location of irrlicht's shaders in my game.

The shaders appear to load properly, but the fixed function shaders (and others but im only using fixed function) have a lot of "unable to find uniform" errors.

Code: Select all

Irrlicht Engine version 1.8.0-alpha
Microsoft Windows Vista Home Premium Edition  (Build 6000)
EglDisplay initialized. Egl version 1.3
Got 1 configs.
 Creating EglSurface with nativeWindow...
SUCCESS
SUCCESS
Creating EglContext...
Using renderer: OpenGL ES 2.0 ( SDK build: 2.06.26.0641 )
OpenGL_ES
Imagination Technologies (Host GL: `ATI Technologies Inc.`)
GL_OES_byte_coordinates GL_OES_fixed_point GL_OES_query_matrix GL_OES_single_precision GL_OES_matrix_get GL_OES_read_format GL_IMG_read_format GL_OES_point_sprite GL_OES_query_matrix GL_OES_texture_env_crossbar GL_OES_texture_mirrored_repeat GL_OES_blend_substract GL_OES_blend_func_separate GL_OES_blend_equation_separate GL_OES_stencil_wrap GL_OES_extended_matrix_palette GL_OES_vertex_half_float GL_OES_compressed_ETC1_RGB8_texture GL_OES_compressed_paletted_texture GL_OES_depth24 GL_OES_depth_texture GL_OES_texture_float GL_OES_texture_half_float GL_OES_texture_cube_map GL_OES_rgb8_rgba8 GL_OES_stencil8 GL_OES_fragment_precision_high GL_OES_element_index_uint GL_IMG_texture_compression_pvrtc GL_OES_mapbuffer GL_EXT_multi_draw_arrays
Loading shader: data/shaders/COGLES2FixedPipeline.vsh
Loading shader: data/shaders/COGLES2FixedPipeline.fsh
Success.
Unable to find uniform : uUseLight
Unable to find uniform : uLightPosition
Unable to find uniform : uLightAmbient
Unable to find uniform : uLightDiffuse
Unable to find uniform : uLightSpecular
Unable to find uniform : uLightDirection
Unable to find uniform : uLightAttenuation
Unable to find uniform : uLightExponent
Unable to find uniform : uLightCutoff
Unable to find uniform : uMaterialSpecular
Unable to find uniform : uUseTexture
Unable to find uniform : uTextureMatrix
Unable to find uniform : uUseTexMatrix

I'm guessing that this is why my game renders in black and white (mostly white but I do have a few surfaces which are black). Is there something I did wrong during the build process? Perhaps I am using the engine improperly? To switch to egl 2 I just changed the driver type from EDT_OGLES1 to EDT_OGLES2.

Any help would be greatly appreciated.

Thanks!

hybrid · Post by **hybrid** » Tue Apr 26, 2011 10:48 am

No, there was already a bug report which claimed that some (all?) actual implementations of the ogl-es drivers have a limit on the number of characters in a uniform name. So even without changing the path there would be this error. You simply have to rename them to shorter names.

darkphoenix16 · Post by **darkphoenix16** » Tue Apr 26, 2011 11:22 am

Thanks hybrid. Sorry I didn't catch that bug. I searched for "unable to find uniform" in the forums but didn't notice anything.

fluke9 · Post by **fluke9** » Sat Aug 04, 2012 1:56 pm

hybrid wrote:No, there was already a bug report which claimed that some (all?) actual implementations of the ogl-es drivers have a limit on the number of characters in a uniform name. So even without changing the path there would be this error. You simply have to rename them to shorter names.

Found the solution

Its not the namelength but how some drivers export uniform arrays.

http://irrlicht.sourceforge.net/forum/v ... 6&p=270913

vivekSivamRP · Post by **vivekSivamRP** » Fri Nov 30, 2012 10:40 am

When i tried to implement own Shaders in OPENGLES 2.0 getting "NO SHADER SUPPORT" error. But shaders provided in IOS project "COGLES2FixedPipeline" etc... works well. Can any one suggest what would be the reason ? Does't it allows own shaders ?

Nadro · Post by **Nadro** » Fri Nov 30, 2012 8:02 pm

Which device and OS? For Android You have to enable OGLES2 contex support in Your app xml file.

vivekSivamRP · Post by **vivekSivamRP** » Sat Dec 01, 2012 5:59 am

Device: iPad 1.0
OS : IOS 6.0
Driver Type: OPENGL ES 2.0
Irrlicht version: 1.8

Default Shaders Provided in the downloaded file (COGLES2FixedPipeline.vsh,COGLES2Renderer2D etc..) works fine without Problems.
But When i tried to implement Separate Shaders Other than that getting "NO SHADER SUPPORT" ERROR.

I tried both of the formats following
s32 materialName=GPU->addShaderMaterial(...);
s32 materialName=GPU->addShaderMaterialFromFiles(...);
But same error.

What could be the remedy and reason ?

Nadro · Post by **Nadro** » Sat Dec 01, 2012 9:38 am

In next weekend (currently I'm finishing my last product based on OGL ES1) I'll switch from OGL ES1 to OGL ES2 for my apps, so I will fix this issue (for next week it should be solved). Currently I'm too busy to fix it now

vivekSivamRP · Post by **vivekSivamRP** » Sat Dec 01, 2012 10:10 am

ok

. Hope, i will solve it as soon as possible. if Solved, will post "steps to follow" , else i should look for help.

vivekSivamRP · Post by **vivekSivamRP** » Mon Dec 03, 2012 1:58 pm

To Implement Fake Instancing , its necessary to pass node's world arrays to shaders , That's the Main reason for me to Implement Separate Shaders . We Can't pass our "own uniforms" to Default FixedPipeline shaders provided in it.

Now Managed to compile Separate Shaders in OPENGL ES 2.0, But No use it always uses FixedPipeline shader(Provided Default) O/P to Display in Screen for SMGR->drawAll(). Even when i disabled FixedPipeline shaders , it Displays Blank Screen. Can any one suggest the reason ?

Nadro · Post by **Nadro** » Mon Dec 03, 2012 6:41 pm

How You use arrays in Your shader? Some drivers have problems with access a data from an arrays (thats why fixed pipeline shader builtin Irrlicht OGL ES2 doesn't work properly on some platforms eg. iOS).

vivekSivamRP · Post by **vivekSivamRP** » Tue Dec 04, 2012 8:01 am

In GLES 2.0 we can access array by replacing fews lines in "COGLES2SLMaterialRenderer.cpp". I found the info here http://irrlicht.sourceforge.net/forum/v ... =1&t=46726.

vivekSivamRP · Post by **vivekSivamRP** » Tue Dec 11, 2012 1:28 pm

After some Changes successfully implemented Separate Shaders in opengl ES 2.0 . its working well now

if any one finds difficult to work with separate shaders in es 2.0 , post your problems , hopefully we can solve it

Nadro · Post by **Nadro** » Thu Dec 13, 2012 2:07 am

I fixed issues with custom shaders in the latest revision (blending and alpha shaders doesn't work). I'll fix and clean up a code in a next days (currently OGL ES2 is my priority). I also prepared example for use custom shaders in iOS app (it may be use also as some irrlicht iOS example, because I included in them all source files + xib files for iPhone and iPad, only XCode proj is missing):
http://www.sendspace.com/file/u98oes

BTW. Remember to add files from "media/Shaders/" to Your iOS project resources group.

vivekSivamRP · Post by **vivekSivamRP** » Sat Dec 15, 2012 11:31 am

What do u mean by alpha and blending shaders ?

Irrlicht Engine

[SOLVED] ogl-es branch, shader driver (2), not rendering

[SOLVED] ogl-es branch, shader driver (2), not rendering

Re:

Re: [SOLVED] ogl-es branch, shader driver (2), not renderin

Re: [SOLVED] ogl-es branch, shader driver (2), not renderin

Re: [SOLVED] ogl-es branch, shader driver (2), not renderin

Re: [SOLVED] ogl-es branch, shader driver (2), not renderin

Re: [SOLVED] ogl-es branch, shader driver (2), not renderin

Re: [SOLVED] ogl-es branch, shader driver (2), not renderin

Re: [SOLVED] ogl-es branch, shader driver (2), not renderin

Re: [SOLVED] ogl-es branch, shader driver (2), not renderin

Re: [SOLVED] ogl-es branch, shader driver (2), not renderin

Re: [SOLVED] ogl-es branch, shader driver (2), not renderin

Re: [SOLVED] ogl-es branch, shader driver (2), not renderin