Thank you very much. The code above works On Tuesday, May 19, 2020 at 4:07:19 PM UTC+8, Robert Osfield wrote: > > I have moved this posted from vsg-users to osg-users as this is the > correct forum for OSG support. > > In the OSG to do multi-pass effect that require clearing of the > depth/color/stencil buffers you use an osg::Camera. The osghud example has > a code path that illustrates the use of osg::Camera to clear the depth > buffer only. The part that controls the clearing is the line: > > // only clear the depth buffer > camera->setClearMask(GL_DEPTH_BUFFER_BIT); > > For you needs you'd use the GL_STENCIL_BUFFER_BIT. >
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