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0028760: Visualization, TKOpenGl - avoid excessive frustum culling traverse within extra OIT rendering pass

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Culling traverse is no more called implicitly within OpenGl_Layer::Render().
Instead, all layers are traversed at onces within OpenGl_View::render() beforehand.

OpenGl_BVHTreeSelector methods have been renamed to better reflect their meaning.
Non-persistent culling options has been moved to dedicated structure OpenGl_BVHTreeSelector::CullingContext
so that OpenGl_BVHTreeSelector instance can be used for different Layers without modifying its state.
This commit is contained in:
kgv
2017-11-08 09:44:27 +03:00
parent daf73ab7c9
commit 2b8832bb0e
9 changed files with 202 additions and 168 deletions
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src/OpenGl/OpenGl_View.hxx
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@@ -336,7 +336,7 @@ public:
//! Returns selector for BVH tree, providing a possibility to store information
//! about current view volume and to detect which objects are overlapping it.
OpenGl_BVHTreeSelector& BVHTreeSelector() { return myBVHSelector; }
const OpenGl_BVHTreeSelector& BVHTreeSelector() const { return myBVHSelector; }
//! Returns true if there are immediate structures to display
bool HasImmediateStructures() const