subject:"\[osg\-users\] Shaders and Nvidia 275.33 drivers problem"

[osg-users] Shaders and Nvidia 275.33 drivers problem

2011-06-08 Thread Alexander Sinditskiy

Hello

I have win7 x64  nvidia video card
I found strange problem after update to version 275.33 of nvidia drivers.

I see artifacts with shaders, i tried to find why.

Part of shader uniform variables are not work correctly.
i try to debug it with gdebugger and i noticed non-initialized values in part 
of uniforms.

file src/osg/Program.cpp lines 672-673


Code:

_extensions-glGetActiveUniform( _glProgramHandle,
i, maxLen, 0, size, type, name );




Later i found that names of array variables coming with [0]. example - 
%name%[0]
i tested with 266.58 they coming without [0]

as result in _uniformInfoMap[Uniform::getNameID(reinterpret_castconst 
char*(name))] = ...
we recording values with [0].

file src/osg/Program.cpp lines 213

Code:

inline void apply(const Uniform uniform) const
{
GLint location = getUniformLocation(uniform.getNameID());
if (location=0)




and here we can't get right location


i fix it, please look patch


Code:

--- a/OpenSceneGraph/src/osg/Uniform.cpp
+++ b/OpenSceneGraph/src/osg/Uniform.cpp
@@ -611,13 +611,13 @@ unsigned int Uniform::getNameID(const std::string name)
static UniformNameIDMap s_uniformNameIDMap;

OpenThreads::ScopedLockOpenThreads::Mutex lock(s_mutex_uniformNameIDMap);
-UniformNameIDMap::iterator it = s_uniformNameIDMap.find(name);
+UniformNameIDMap::iterator it = s_uniformNameIDMap.find(name.substr(0, 
name.find([)));
 if (it != s_uniformNameIDMap.end())
 {
 return it-second;
 }
 unsigned int id = s_uniformNameIDMap.size();
-s_uniformNameIDMap.insert(UniformNameIDMap::value_type(name, id));
+s_uniformNameIDMap.insert(UniformNameIDMap::value_type(name.substr(0, 
name.find([)), id));
return id;
 }




But i don't think that is a good solution.


Thank you!

Cheers,
Alexander

--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=40201#40201





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Re: [osg-users] Shaders and Nvidia 275.33 drivers problem

2011-06-08 Thread Tomlinson, Gordon

The 275.33 Drivers are not good I personally would avoid like the plague, they 
are causing all sorts of problems for people



Gordon Tomlinson
System Engineering Consultant 
Overwatch®
An Operating Unit of Textron Systems
__
WARNING: Documents that can be viewed, printed or retrieved from this E-Mail 
may contain technical data whose export is restricted by the Arms Export 
Control Act (Title 22, U.S.C., Sec 2751, et seq,) or the Export Administration 
Act of 1979, as amended, Title 50, U.S.C., App. 2401 et seq. and which may not 
be exported, released or disclosed to non-U.S. persons (i.e. persons who are 
not U.S. citizens or lawful permanent residents [green card holders]) inside 
or outside the United States, without first obtaining an export license.  
Violations of these export laws are subject to severe civil, criminal and 
administrative penalties.

-Original Message-
From: osg-users-boun...@lists.openscenegraph.org 
[mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Alexander 
Sinditskiy
Sent: Wednesday, June 08, 2011 5:04 AM
To: osg-users@lists.openscenegraph.org
Subject: [osg-users] Shaders and Nvidia 275.33 drivers problem

Hello

I have win7 x64  nvidia video card
I found strange problem after update to version 275.33 of nvidia drivers.

I see artifacts with shaders, i tried to find why.

Part of shader uniform variables are not work correctly.
i try to debug it with gdebugger and i noticed non-initialized values in part 
of uniforms.

file src/osg/Program.cpp lines 672-673


Code:

_extensions-glGetActiveUniform( _glProgramHandle,
i, maxLen, 0, size, type, name );




Later i found that names of array variables coming with [0]. example - 
%name%[0]
i tested with 266.58 they coming without [0]

as result in _uniformInfoMap[Uniform::getNameID(reinterpret_castconst 
char*(name))] = ...
we recording values with [0].

file src/osg/Program.cpp lines 213

Code:

inline void apply(const Uniform uniform) const
{
GLint location = getUniformLocation(uniform.getNameID());
if (location=0)




and here we can't get right location


i fix it, please look patch


Code:

--- a/OpenSceneGraph/src/osg/Uniform.cpp
+++ b/OpenSceneGraph/src/osg/Uniform.cpp
@@ -611,13 +611,13 @@ unsigned int Uniform::getNameID(const std::string name)
static UniformNameIDMap s_uniformNameIDMap;

OpenThreads::ScopedLockOpenThreads::Mutex lock(s_mutex_uniformNameIDMap);
-UniformNameIDMap::iterator it = s_uniformNameIDMap.find(name);
+UniformNameIDMap::iterator it = s_uniformNameIDMap.find(name.substr(0, 
name.find([)));
 if (it != s_uniformNameIDMap.end())
 {
 return it-second;
 }
 unsigned int id = s_uniformNameIDMap.size();
-s_uniformNameIDMap.insert(UniformNameIDMap::value_type(name, id));
+s_uniformNameIDMap.insert(UniformNameIDMap::value_type(name.substr(0, 
name.find([)), id));
return id;
 }




But i don't think that is a good solution.


Thank you!

Cheers,
Alexander

--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=40201#40201





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http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
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Re: [osg-users] Shaders and Nvidia 275.33 drivers problem

2011-06-08 Thread Buckley, Bob CTR MDA/DES

Concur.
They broke 3DVision (dual OC'd 250's)
Transmitter lights up, flashes, then turns off.

-Original Message-
From: osg-users-boun...@lists.openscenegraph.org 
[mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Tomlinson, 
Gordon
Sent: Wednesday, June 08, 2011 5:28 AM
To: osg-users@lists.openscenegraph.org
Subject: Re: [osg-users] Shaders and Nvidia 275.33 drivers problem

The 275.33 Drivers are not good I personally would avoid like the plague, they 
are causing all sorts of problems for people

Gordon Tomlinson
System Engineering Consultant 
Overwatch®
An Operating Unit of Textron Systems
__
WARNING: Documents that can be viewed, printed or retrieved from this E-Mail 
may contain technical data whose export is restricted by the Arms Export 
Control Act (Title 22, U.S.C., Sec 2751, et seq,) or the Export Administration 
Act of 1979, as amended, Title 50, U.S.C., App. 2401 et seq. and which may not 
be exported, released or disclosed to non-U.S. persons (i.e. persons who are 
not U.S. citizens or lawful permanent residents [green card holders]) inside 
or outside the United States, without first obtaining an export license.  
Violations of these export laws are subject to severe civil, criminal and 
administrative penalties.

-Original Message-
From: osg-users-boun...@lists.openscenegraph.org 
[mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Alexander 
Sinditskiy
Sent: Wednesday, June 08, 2011 5:04 AM
To: osg-users@lists.openscenegraph.org
Subject: [osg-users] Shaders and Nvidia 275.33 drivers problem

Hello

I have win7 x64  nvidia video card
I found strange problem after update to version 275.33 of nvidia drivers.

I see artifacts with shaders, i tried to find why.

Part of shader uniform variables are not work correctly.
i try to debug it with gdebugger and i noticed non-initialized values in part 
of uniforms.

file src/osg/Program.cpp lines 672-673

Code:

_extensions-glGetActiveUniform( _glProgramHandle,
i, maxLen, 0, size, type, name );

Later i found that names of array variables coming with [0]. example - 
%name%[0]
i tested with 266.58 they coming without [0]

as result in _uniformInfoMap[Uniform::getNameID(reinterpret_castconst 
char*(name))] = ...
we recording values with [0].

file src/osg/Program.cpp lines 213

Code:

inline void apply(const Uniform uniform) const
{
GLint location = getUniformLocation(uniform.getNameID());
if (location=0)

and here we can't get right location

i fix it, please look patch

Code:

--- a/OpenSceneGraph/src/osg/Uniform.cpp
+++ b/OpenSceneGraph/src/osg/Uniform.cpp
@@ -611,13 +611,13 @@ unsigned int Uniform::getNameID(const std::string name)
static UniformNameIDMap s_uniformNameIDMap;

OpenThreads::ScopedLockOpenThreads::Mutex lock(s_mutex_uniformNameIDMap);
-UniformNameIDMap::iterator it = s_uniformNameIDMap.find(name);
+UniformNameIDMap::iterator it = s_uniformNameIDMap.find(name.substr(0, 
name.find([)));
 if (it != s_uniformNameIDMap.end())
 {
 return it-second;
 }
 unsigned int id = s_uniformNameIDMap.size();
-s_uniformNameIDMap.insert(UniformNameIDMap::value_type(name, id));
+s_uniformNameIDMap.insert(UniformNameIDMap::value_type(name.substr(0, 
name.find([)), id));
return id;
 }

But i don't think that is a good solution.

Thank you!

Cheers,
Alexander

--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=40201#40201

___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
___
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osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
___
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[osg-users] Shaders and Nvidia 275.33 drivers problem

Re: [osg-users] Shaders and Nvidia 275.33 drivers problem

Re: [osg-users] Shaders and Nvidia 275.33 drivers problem

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