delphi - How to draw on a single GLSceneViewer using GLCanvas but not on all viewers? -


i'm using tglcanvas on gldirectopengl1render draw lines this:

uses   glcanvas,   glrendercontextinfo {...}  procedure tform1.gldirectopengl1render(sender: tobject;   var rci: trendercontextinfo); var    glc: tglcanvas; begin   glc:=tglcanvas.create(glsceneviewerl.width, glsceneviewerl.height);   glc   begin     //drawing lines here     line(0, 0, 10, 20);     line(10, 20, 30, 30);     {...}   end;   glc.free; end;

but in current project have more 1 glsceneviewer different cameras , need draw lines on 1 glsceneviewer not on other scene viewers. opengl draw fast speed preffered. ideas?

ok, after playing around glsceneviewer figured out how it: instead of drawing lines on onrender event of gldirectopengl1, should draw lines on postrender event of necessary glsceneviewer, code should that:

procedure tform1.glsceneviewerl(sender: tobject); var    glc : tglcanvas; begin     glc:=tglcanvas.create(glsceneviewerl.width, glsceneviewerl.height);     glc     begin       //drawing lines here       line(0, 0, 10, 20);       line(10, 20, 30, 30);       {...}     end;     glc.free; end;

that's it, lines drawn exclusively on viewer "glsceneviewerl" name, not viewers of scene.


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