Hi, I need some explanations about the ways OSG allow to modify the render.
I am working on a function, to apply to a node, to set it always rendered over the other nodes. In other words, If I apply this on an osgText, I would be able to read the text whatever my camera position can be (of course if text is in the frustum). I make some search and I found a lot of things: * node->setCullingActive() : disable/enable the culling on a node. I am I good, disabling this on a node is not sufficient, after that we need to tell the node when to be rendered, isn't it ? * state->setMode(GL_DEPTH_TEST, OFF) : same thing ? what is the difference with the first one ? just OSG/OpenGl distinction ? * state->setRenderbinDetails(binNum, binName) : num < 0 will be first rendered, num >0 will be the last ? what is the binName ? I saw "LastRenderBin" or "RenderBin" ... is there some keyword or it is just a name ? what is this word function ? * osg::Depth ... What this class can add ? I red OpenGl documentation about glDepthFunc/Mask/Range but I do not see what this class can add here. I know to set a node to be rendered last over the other nodes, I need a couple of theses function, but I've made some test and nothing look good... Any idea, explanation or Help would be very apreciated. Thanks, Regards, Vincent.
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