Hi,
could you send me an osg file dump of the scene graph for the 1_x sequence
of images. I'll try to recreate the problems, but it might be easier having a
reference to see the actual setup.
kind regards
gerrit
> On 30 May, 2014, at 18:31, "Johannes Brunen" <jbru...@datasolid.de> wrote:
>
> Hello,
>
>
>
> after sync with the current OpenSG 2 master trunk
> (51f04ac30d8481dcb2eb1ddb318bff97450d1956) I have rendering problems
> (AMD Radeon HD 5700 series) with shaders.
>
>
>
> I have uploaded a zip file to
>
> http://wikisend.com/download/565136/Error.zip
>
> which contains some png images, the CMakeCache.txt file and some log
> files created during my test.
>
>
>
>
>
> Basically, I have used the following relevant CMake options for my VC
> 9Sp1 Win64 setup:
>
>
>
> OSG_ENABLE_MULTISHADER_VARCHUNK:BOOL=ON
>
> OSG_ENABLE_NEW_GEOHANDLER:BOOL=ON
>
> OSG_ENABLE_OGL2_SHADERFUNCTIONS:BOOL=ON
>
> OSG_ENABLE_OGL3_PROTOS:BOOL=OFF
>
> OSG_ENABLE_OGL4_PROTOS:BOOL=OFF
>
> OSG_ENABLE_OGLES_PROTOS:BOOL=OFF
>
> OSG_ENABLE_OGL_COREONLY:BOOL=OFF
>
> OSG_ENABLE_OGL_ES2:BOOL=OFF
>
> OSG_ENABLE_OGL_ES2_SIMGL3:BOOL=OFF
>
> OSG_ENABLE_OGL_VERTEXATTRIB_FUNCS:BOOL=ON
>
>
>
>
>
> Ok, now I try to describe my problem. I will refer to the png images.
> For what follows I use one directional light source.
>
>
>
> 11_NoShader.png
>
> ==============
>
> I start my application with disabled shader support and create some
> geometry (sphere and cylinder)
>
>
>
> 12_Shader.png
>
> ============
>
> I enable the usage of shaders. I have applied a simple phong shader with
> removed ambient light. All is correct here.
>
>
>
> 13_Shader.png
>
> ============
>
> Now, I create new additional geometry the same way as I did before. The
> shading is completely lost. However, I tested that the shader is still
> working properly.
>
>
>
> 14_NoShader.png
>
> ==============
>
> Now, I disable the shader usage. See that the increase of brightness due
> to the additional ambient contribution. But, the lastly added geometry
> still does not render correctly!
>
>
>
> 15_NoShader.png
>
> ==============
>
> Creation of new geometry work now as expected. Rendering of first and
> third geometry is correct. Second geometry is incorrect.
>
>
>
> 16_Shader.png
>
> ============
>
> Shader activated again, first and third geometry correct, third geometry
> incorrect.
>
>
>
> 17_Shader.png
>
> ============
>
> New geometry, which renders incorrect.
>
>
>
> Etc...
>
>
>
> In order to get a little more information, I did modify my phong shader
> so that the diffuse contribution is equal to the normal direction. I.e.
> I used
>
>
>
> Diffuse = (n + vec3(1,1,1)) * 0.5; // += Kd * n_dot_l;
>
>
>
> The result of this can be seen in the second group of images:
>
>
>
> 21_NoShader.png
>
> ==============
>
> Start of app with disabled shader support and create some geom.
>
>
>
> 22_Shader.png
>
> ============
>
> Activated shader usage. The geom coloring of the normals in eye space.
>
>
>
> 23_Shader.png
>
> ============
>
> New geometry created. All normals are identical.
>
>
>
> I do not have any idea what is going wrong here and really need some
> help.
>
>
>
> Alternatively, I tried to compile the OpenSG code with
>
>
>
> OSG_ENABLE_NEW_GEOHANDLER:BOOL=OFF
>
> OSG_ENABLE_OGL_VERTEXATTRIB_FUNCS:BOOL=OFF
>
>
>
> but this resulted in other (unsolved problems) as I have reported in
>
>
>
> http://sourceforge.net/p/opensg/mailman/message/32363721/
>
>
>
> Beside, this message does not show up in the
>
>
>
> www.mail-archive.com/opensg-users
>
>
>
> Maybe, this is the reason I got no response from the community.
>
>
>
>
>
> Any help is very much appreciated here. I need to solve these two
> problems.
>
>
>
> Best,
>
> Johannes
>
>
>
>
> ------------------------------------------------------------------------------
> Time is money. Stop wasting it! Get your web API in 5 minutes.
> www.restlet.com/download
> http://p.sf.net/sfu/restlet
> _______________________________________________
> Opensg-users mailing list
> Opensg-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/opensg-users
------------------------------------------------------------------------------
Learn Graph Databases - Download FREE O'Reilly Book
"Graph Databases" is the definitive new guide to graph databases and their
applications. Written by three acclaimed leaders in the field,
this first edition is now available. Download your free book today!
http://p.sf.net/sfu/NeoTech
_______________________________________________
Opensg-users mailing list
Opensg-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/opensg-users
