{
aBackColorTop = myBackgrounds[Graphic3d_TOB_GRADIENT]->GradientColor (0);
aBackColorBot = myBackgrounds[Graphic3d_TOB_GRADIENT]->GradientColor (1);
+
+ if (myCamera->Tile().IsValid())
+ {
+ Standard_Integer aTileOffset = myCamera->Tile().OffsetLowerLeft().y();
+ Standard_Integer aTileSize = myCamera->Tile().TileSize.y();
+ Standard_Integer aViewSize = myCamera->Tile().TotalSize.y();
+ OpenGl_Vec4 aColorRange = aBackColorTop - aBackColorBot;
+ aBackColorBot = aBackColorBot + aColorRange * ((float) aTileOffset / aViewSize);
+ aBackColorTop = aBackColorBot + aColorRange * ((float) aTileSize / aViewSize);
+ }
}
aBackColorTop = theGlContext->Vec4FromQuantityColor (aBackColorTop);
aBackColorBot = theGlContext->Vec4FromQuantityColor (aBackColorBot);