I'm currently building OSG with GL3 support and the build failes due to
a missing definition of GL_RB.
Also I never heard of GL_RB before. Are you sure it is not GL_RG?
A further refinement of my earlier suggested changes:
Index: Texture.cpp
===================================================================
--- Texture.cpp (revision 13850)
+++ Texture.cpp (working copy)
@@ -1458,6 +1458,18 @@
case(GL_RGBA8_OES) : internalFormat = GL_RGBA; break;
default: break;
}
+#elif defined(OSG_GL3_AVAILABLE)
+ switch(internalFormat)
+ {
+ case(GL_INTENSITY) : internalFormat = GL_RED; break; //
should it be swizzled to match RGBA(INTENSITY, INTENSITY, INTENSITY,
INTENSITY)?
+ case(GL_LUMINANCE) : internalFormat = GL_RED; break; //
should it be swizzled to match RGBA(LUMINANCE, LUMINANCE, LUMINANCE, 1.0)?
+ case(1) : internalFormat = GL_RED; break; // or sould this be
GL_ALPHA?
+ case(2) : internalFormat = GL_RG; break; // should we assume
GL_LUMINANCE_ALPHA?
+ case(GL_LUMINANCE_ALPHA) : internalFormat = GL_RB; break; //
should it be swizlled to match RGAB(LUMUNIANCE, LUMINANCE, LUMINANCE,
ALPHA)?
+ case(3) : internalFormat = GL_RGB; break;
+ case(4) : internalFormat = GL_RGBA; break;
+ default: break;
+ }
#endif
On 22 October 2013 15:50, Robert Osfield <[email protected]
<mailto:[email protected]>> wrote:
Hi Lukasz,
I have looked into how to internalFormat is processed with
osg::Texture and feel that we can probably achieve what is need
for core profile builds by extending a code block in Texture.cpp
within the Texture::computeInternalFormatWithImage(const
osg::Image& image) method, the change would be:
~/OpenSceneGraph/src/osg$ svn diff
Index: Texture.cpp
===================================================================
--- Texture.cpp (revision 13850)
+++ Texture.cpp (working copy)
@@ -1458,6 +1458,15 @@
case(GL_RGBA8_OES) : internalFormat = GL_RGBA; break;
default: break;
}
+#elif defined(OSG_GL3_AVAILABLE)
+ switch(internalFormat)
+ {
+ case(1) : internalFormat = GL_RED; break;
+ case(2) : internalFormat = GL_RG; break;
+ case(3) : internalFormat = GL_RGB; break;
+ case(4) : internalFormat = GL_RGBA; break;
+ default: break;
+ }
#endif
_internalFormat = internalFormat;
I have attached the modified file, could you please test it.
Robert.
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