[dataflow-rendering] allow using rendering node in any order

Author: MathiasPaulin

src/Dataflow/Rendering/Nodes/RenderNodes/ClearColorNode.cpp

@@ -62,11 +62,12 @@ bool ClearColorNode::execute() {
         gl::glDepthMask( gl::GL_FALSE );
         gl::glColorMask( gl::GL_TRUE, gl::GL_TRUE, gl::GL_TRUE, gl::GL_TRUE );
         gl::glDisable( gl::GL_DEPTH_TEST );
-        envmap->render( m_portInCamera->getData() );
+        envmap->render( m_portInCamera->getData(), false );
         gl::glDepthMask( gl::GL_TRUE );
         gl::glEnable( gl::GL_DEPTH_TEST );
     }
     else {
+        clearColor[3] = 0_ra;
         gl::glClearBufferfv( gl::GL_COLOR, 0, clearColor );
     }
 
@@ -76,15 +77,15 @@ bool ClearColorNode::execute() {
 }
 
 void ClearColorNode::toJsonInternal( nlohmann::json& data ) const {
-    auto c = ColorType ::linearRGBTosRGB( m_editableClearColor );
+    auto c = ColorType::linearRGBTosRGB( m_editableClearColor );
     std::array<Scalar, 3> color { { c.x(), c.y(), c.z() } };
     data["clearColor"] = color;
 }
 
 bool ClearColorNode::fromJsonInternal( const nlohmann::json& data ) {
     if ( data.contains( "clearColor" ) ) {
         std::array<Scalar, 3> c = data["clearColor"];
-        m_editableClearColor    = ColorType ::sRGBToLinearRGB( ColorType( c[0], c[1], c[2] ) );
+        m_editableClearColor    = ColorType::sRGBToLinearRGB( ColorType( c[0], c[1], c[2] ) );
     }
     else {
         m_editableClearColor =

src/Dataflow/Rendering/Nodes/RenderNodes/EmissivityRenderNode.cpp

@@ -50,7 +50,8 @@ void EmissivityNode::init() {
     m_nodeState->depthFunc( gl::GL_LEQUAL );
     m_nodeState->depthMask( gl::GL_FALSE );
     m_nodeState->colorMask( gl::GL_TRUE, gl::GL_TRUE, gl::GL_TRUE, gl::GL_TRUE );
-    m_nodeState->disable( gl::GL_BLEND );
+    m_nodeState->blendFuncSeparate( gl::GL_ONE, gl::GL_DST_ALPHA, gl::GL_ONE, gl::GL_ZERO );
+    m_nodeState->enable( gl::GL_BLEND );
 }
 
 void EmissivityNode::destroy() {

src/Dataflow/Rendering/Nodes/RenderNodes/EnvironmentLightingNode.cpp

@@ -54,7 +54,8 @@ void EnvironmentLightingNode::init() {
     m_nodeState->depthFunc( gl::GL_LEQUAL );
     m_nodeState->depthMask( gl::GL_FALSE );
     m_nodeState->colorMask( gl::GL_TRUE, gl::GL_TRUE, gl::GL_TRUE, gl::GL_TRUE );
-    m_nodeState->blendFunc( gl::GL_ONE, gl::GL_ONE );
+    // m_nodeState->blendFunc( gl::GL_ONE, gl::GL_DST_ALPHA );
+    m_nodeState->blendFuncSeparate( gl::GL_ONE, gl::GL_DST_ALPHA, gl::GL_ONE, gl::GL_ZERO );
     m_nodeState->enable( gl::GL_BLEND );
 }
 

src/Dataflow/Rendering/Nodes/RenderNodes/GeometryAovsNode.cpp

@@ -43,8 +43,8 @@ GeometryAovsNode::GeometryAovsNode( const std::string& name ) :
     m_depthTexture           = new Ra::Engine::Data::Texture( texParams );
 
     addOutput( m_outDepthTex, m_depthTexture );
-    addOutput( m_outPosInWorldTex, m_posInWorldTexture );
     addOutput( m_outNormalInWorldTex, m_normalInWorldTexture );
+    addOutput( m_outPosInWorldTex, m_posInWorldTexture );
 }
 
 void GeometryAovsNode::init() {

src/Dataflow/Rendering/Nodes/RenderNodes/LocalLightingNode.cpp

@@ -53,7 +53,7 @@ void LocalLightingNode::init() {
     m_nodeState->depthFunc( gl::GL_LEQUAL );
     m_nodeState->depthMask( gl::GL_FALSE );
     m_nodeState->colorMask( gl::GL_TRUE, gl::GL_TRUE, gl::GL_TRUE, gl::GL_TRUE );
-    m_nodeState->blendFunc( gl::GL_ONE, gl::GL_ONE );
+    m_nodeState->blendFuncSeparate( gl::GL_ONE, gl::GL_DST_ALPHA, gl::GL_ONE, gl::GL_ZERO );
     m_nodeState->enable( gl::GL_BLEND );
 }
 

src/Dataflow/Rendering/Nodes/RenderNodes/SsaoRenderNode.cpp

@@ -15,12 +15,11 @@ namespace Nodes {
 using namespace Ra::Engine::Data;
 
 SsaoNode::SsaoNode( const std::string& name ) : RenderingNode( name, getTypename() ) {
-    addInput( m_inWorldPos );
-    m_inWorldPos->mustBeLinked();
 
     addInput( m_inWorldNormal );
     m_inWorldNormal->mustBeLinked();
-
+    addInput( m_inWorldPos );
+    m_inWorldPos->mustBeLinked();
     addInput( m_inCamera );
     m_inCamera->mustBeLinked();