[Multiview] Fix transparent pass and vertex shader

apps/openmw/mwrender/postprocessor.cpp

@@ -340,7 +340,6 @@ namespace MWRender
             mTransparentDepthPostPass->mFbo[frameId] = mFbos[frameId][FBO_Primary];
             mTransparentDepthPostPass->mMsaaFbo[frameId] = mFbos[frameId][FBO_Multisample];
             mTransparentDepthPostPass->mOpaqueFbo[frameId] = mFbos[frameId][FBO_OpaqueDepth];
-            mTransparentDepthPostPass->dirtyFrame(frameId);
         }
 
         size_t frame = cv->getTraversalNumber();

apps/openmw/mwrender/transparentpass.cpp

@@ -80,6 +80,11 @@ namespace MWRender
                 mMultiviewResolve[frameId] = std::make_unique<Stereo::MultiviewFramebufferResolve>(
                     msaaFbo ? msaaFbo : fbo, opaqueFbo, GL_DEPTH_BUFFER_BIT);
             }
+            else
+            {
+                mMultiviewResolve[frameId]->setResolveFbo(opaqueFbo);
+                mMultiviewResolve[frameId]->setMsaaFbo(msaaFbo ? msaaFbo : fbo);
+            }
             mMultiviewResolve[frameId]->resolveImplementation(state);
         }
         else
@@ -133,11 +138,4 @@ namespace MWRender
                 : fbo->apply(state, osg::FrameBufferObject::DRAW_FRAMEBUFFER);
         state.checkGLErrors("after TransparentDepthBinCallback::drawImplementation");
     }
-
-    void TransparentDepthBinCallback::dirtyFrame(int frameId)
-    {
-        if (mMultiviewResolve[frameId])
-            mMultiviewResolve[frameId]->dirty();
-    }
-
 }

apps/openmw/mwrender/transparentpass.hpp

@@ -28,7 +28,6 @@ namespace MWRender
 
         void drawImplementation(
             osgUtil::RenderBin* bin, osg::RenderInfo& renderInfo, osgUtil::RenderLeaf*& previous) override;
-        void dirtyFrame(int frameId);
 
         std::array<osg::ref_ptr<osg::FrameBufferObject>, 2> mFbo;
         std::array<osg::ref_ptr<osg::FrameBufferObject>, 2> mMsaaFbo;

components/stereo/multiview.cpp

@@ -735,6 +735,20 @@ namespace Stereo
     {
     }
 
+    void MultiviewFramebufferResolve::setResolveFbo(osg::FrameBufferObject* resolveFbo)
+    {
+        if (resolveFbo != mResolveFbo)
+            dirty();
+        mResolveFbo = resolveFbo;
+    }
+
+    void MultiviewFramebufferResolve::setMsaaFbo(osg::FrameBufferObject* msaaFbo)
+    {
+        if (msaaFbo != mMsaaFbo)
+            dirty();
+        mMsaaFbo = msaaFbo;
+    }
+
     void MultiviewFramebufferResolve::resolveImplementation(osg::State& state)
     {
         if (mDirtyLayers)

components/stereo/multiview.hpp

@@ -125,6 +125,9 @@ namespace Stereo
         const osg::FrameBufferObject* resolveFbo() const { return mResolveFbo; }
         const osg::FrameBufferObject* msaaFbo() const { return mMsaaFbo; }
 
+        void setResolveFbo(osg::FrameBufferObject* resolveFbo);
+        void setMsaaFbo(osg::FrameBufferObject* msaaFbo);
+
     private:
         void setupLayers();
 

files/shaders/lib/core/vertex_multiview.glsl

@@ -1,4 +1,5 @@
-#version 330
+#version 330 compatibility
+// Note: compatibility profile required to access gl_ModelViewMatrix 
 
 #extension GL_OVR_multiview : require
 #extension GL_OVR_multiview2 : require