Confirmed. Splitting the pragma line in half fixes the problem on Intel graphics:
#pragma import_defines( BACKDROP_COLOR, SHADOW, OUTLINE) #pragma import_defines( SIGNED_DISTANCE_FIELD, TEXTURE_DIMENSION, GLYPH_DIMENSION) I'm running on Win7 64-bit, Intel HD Graphics 4000, driver version 10.18.10.4885. - Terry On Wed, Apr 25, 2018 at 1:38 PM, Terry Welsh <[email protected]> wrote: > Thank you, Dan. That is *exactly* the problem I have with the Intel > graphics driver. This bug affects a driver from September and the new > one I installed last night. I'll test your workaround when I get home > tonight and report on it. > > (My AMD driver, on the other hand, is a complete mess. It crashes on > Furmark and pretty much everything else.) > > Robert, here is a related suggestion: how about renaming text.vert and > text.frag to something unique? Maybe osgtext_text.frag? When I first > tried 3.6.0 all my text was very broken because I already had a > text.vert and text.frag in my application. It took a while to figure > out that they were being loaded by osgText::Text even though I had > disabled them in my own code. > - Terry > >> >> Hi Terry, >> >> Hey I might know this one. Thanks for that additional info about your >> driver. Do you mind retesting with a change? >> >> See references: >> >> - >> https://devtalk.nvidia.com/default/topic/971330/opengl/bug-report-crash-in-glcompileshader-if-using-pragma/ >> - >> https://software.intel.com/en-us/forums/graphics-driver-bug-reporting/topic/623485 >> - https://github.com/gwaldron/osgearth/issues/1017 >> - https://github.com/gwaldron/osgearth/pull/1106 >> - https://github.com/gwaldron/osgearth/pull/1100 >> >> There are some older intel drivers that crash on shaders that include >> pragmas with too many "arguments". The spec says that pragmas should be >> ignored. But testing demonstrates severe problems with several intel >> drivers over a few years' period where lines like: >> >> #pragma import_defines( BACKDROP_COLOR, SHADOW, OUTLINE, >> SIGNED_DISTANCE_FIELD, TEXTURE_DIMENSION, GLYPH_DIMENSION) >> >> ... could cause a failure. Breaking it up into separate lines of no more >> than 2 arguments each works. >> >> We found that the magic number for drivers is 3 -- once you get over 3 >> parameters, it starts to break (depending on driver version). Could you try >> to edit your text.frag file to change: >> >> #pragma import_defines( BACKDROP_COLOR, SHADOW, OUTLINE, >> SIGNED_DISTANCE_FIELD, TEXTURE_DIMENSION, GLYPH_DIMENSION) >> >> To: >> >> #pragma import_defines( BACKDROP_COLOR, SHADOW, OUTLINE) >> #pragma import_defines( SIGNED_DISTANCE_FIELD, TEXTURE_DIMENSION, >> GLYPH_DIMENSION) >> >> This breaks it into 2 lines of 3 params each. If it's the same bug that we >> encountered, this might fixyour problem. >> >> Robert, I haven't reported this because we haven't explicitly ran into this >> same problem with 3.6 and text shaders yet, because we haven't run on those >> drivers. Newer drivers do fix the issue. >> >> - Dan >> _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
