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  1. JDK
  2. JDK-8113195

OpenGL : We need proper Z-Buffer managment for transparent and off-screen rendering

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      ES2Graphics.java has a code peventing Z-buffer from be cleared it RenderTarget is not a SwapChain :

              // TODO: only bother clearing the depth buffer for onscreen
              // windows for now, since we do not yet attach a depth buffer
              // to FBOs; this will need to change, obviously...
              boolean clearDepth =
                  isDepthBuffer() && getRenderTarget() instanceof ES2SwapChain;

      Z-buffer should be functional even for render target textures and off-screen rendering.

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              Assignee:
              ckyang Chien Yang (Inactive)
              Reporter:
              kprazdnikwse Kirill.Prazdnikov (Inactive)
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