Hi Liu,
use setUseVertexAttributeAliasing as Robert recently explained for similar
question
===
The aliasing of gl_* uniforms to osg_* equivialants is not done by
default. You can switch it one yourself if required though via osg::State,
from the osgsimplegl3 example:
// for non GL3/GL4 and non GLES2 platforms we need enable the osg_
uniforms that the shaders will use,
// you don't need thse two lines on GL3/GL4 and GLES2 specific builds
as these will be enable by default.
gc->getState()->
setUseModelViewAndProjectionUniforms(true);
gc->getState()->setUseVertexAttributeAliasing(true);
In your own shaders if you are building against GL1/2 (default build of
OSG) then you can simply use the gl_* parameters.
Also have a look at the shaders in OpenSceneGraph-Data and the osgshaders
example.
===
Regards
Sergey
On Fri, Nov 7, 2014 at 12:14 PM, Liu Xiao <[email protected]> wrote:
> Hi,
>
> When I trying to use the osg 3.2.1 (with OSG_GLES2_AVAILABLE:BOOL=ON )
> example_osgViewerIPhone, I got the following errors:
>
>
> Code:
> VERTEX glCompileShader "" FAILED
> VERTEX Shader "" infolog:
> ERROR: 0:6: Use of undeclared identifier 'gl_Vertex'
> ERROR: 0:7: Use of undeclared identifier 'gl_FrontColor'
>
> FRAGMENT glCompileShader "" FAILED
> FRAGMENT Shader "" infolog:
> ERROR: 0:4: 'vec4' : declaration must include a precision qualifier for
> type
> ERROR: 0:5: Use of undeclared identifier 'base'
> ERROR: 0:6: Use of undeclared identifier 'color'
> ERROR: 0:6: Use of undeclared identifier 'gl_Color'
> ERROR: 0:7: Use of undeclared identifier 'color'
>
> glLinkProgram "" FAILED
> Program "" infolog:
> ERROR: One or more attached shaders not successfully compiled
>
>
>
> My Config file is as follows:
>
>
> Code:
> #ifndef OSG_CONFIG
> #define OSG_CONFIG 1
>
> /* #undef OSG_NOTIFY_DISABLED */
> /* #undef OSG_USE_FLOAT_MATRIX */
> /* #undef OSG_USE_FLOAT_PLANE */
> #define OSG_USE_FLOAT_BOUNDINGSPHERE
> #define OSG_USE_FLOAT_BOUNDINGBOX
> #define OSG_USE_REF_PTR_IMPLICIT_OUTPUT_CONVERSION
> /* #undef OSG_USE_UTF8_FILENAME */
> #define OSG_DISABLE_MSVC_WARNINGS
>
> /* #undef OSG_GL1_AVAILABLE */
> /* #undef OSG_GL2_AVAILABLE */
> /* #undef OSG_GL3_AVAILABLE */
> /* #undef OSG_GLES1_AVAILABLE */
> #define OSG_GLES2_AVAILABLE
> /* #undef OSG_GL_LIBRARY_STATIC */
> /* #undef OSG_GL_DISPLAYLISTS_AVAILABLE */
> /* #undef OSG_GL_MATRICES_AVAILABLE */
> /* #undef OSG_GL_VERTEX_FUNCS_AVAILABLE */
> /* #undef OSG_GL_VERTEX_ARRAY_FUNCS_AVAILABLE */
> /* #undef OSG_GL_FIXED_FUNCTION_AVAILABLE */
>
> #endif
>
>
>
>
> Can anyone help with this? Or is there any examples of osg ios can I learn?
>
> Thank you!
>
> Cheers,
> Liu
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=61538#61538
>
>
>
>
>
> _______________________________________________
> osg-users mailing list
> [email protected]
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>
_______________________________________________
osg-users mailing list
[email protected]
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
