I think I found the problem.. LogicOp was release in one of the daily
build.. i think I need to update by build here... isnt?
On Thu, Jun 5, 2008 at 1:40 PM, Pablo Carneiro Elias <[EMAIL PROTECTED]>
wrote:
> Hi Carsten, thanks again,
>
> I've found OSGLogicOpChunk.h
>
> But when trying to link my program I get an error.. the object for
> OSGLogicOpChunk doesnt seems to be within the osg library..
>
> LineDecorator.obj : error LNK2019: unresolved external symbol
> "__declspec(dllimport) public: void __thiscall osg::LogicOpChunkBase
>
> The documentation doest not contains any info about it neither...
>
> Im using OpenSG 1.8 here..
>
>
> Any idea?
>
>
> On Thu, Jun 5, 2008 at 1:16 PM, Carsten Neumann <[EMAIL PROTECTED]>
> wrote:
>
>> Hello Pablo,
>>
>> Pablo Carneiro Elias wrote:
>> > Hi. Is there a way of drawing things within the viewport using a
>> > glLogicOp(*GL_XOR*); like operator? I've found anything like this within
>> > the StateChunks classes...
>>
>> glLogicOp is covered by OSG::LogicOpChunk.
>>
>> > I need to render a 2d line over the viewport and the line must compose
>> > its white color with the background color using XOR operator....
>>
>> hm, I don't think there is a foreground that does lines, but there is
>> PolygonForeground which draws a single GL_POLYGON with a given material.
>> Another alternative is to use a second viewport on top of your regular
>> one and have that render a scene with only the line seen through an
>> ortho camera.
>>
>> Hope it helps,
>> Carsten
>>
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