[librender] update SimpleNode

src/libRender/RadiumNBR/NodeGraph/PremadeNodes/RenderPasses/SimpleNode.cpp

@@ -108,7 +108,6 @@ void SimpleNode::execute() {
 
     m_framebuffer->bind();
 
-
     const gl::GLenum buffers[] = { gl::GL_COLOR_ATTACHMENT0 };
     gl::glDrawBuffers( 1, buffers );
 
@@ -121,7 +120,7 @@ void SimpleNode::execute() {
     gl::glColorMask( gl::GL_TRUE, gl::GL_TRUE, gl::GL_TRUE, gl::GL_TRUE );
     gl::glDisable( gl::GL_BLEND );
 
-    float clearBlack[4] = { 0.0f, 1.0f, 0.0f, 0.0f };
+    float clearBlack[4] = { 0.04f, 0.04f, 0.04f, 0.0f };
     float clearDepth    = 1.0f;
     gl::glClearBufferfv( gl::GL_COLOR, 0, clearBlack );
     gl::glClearBufferfv( gl::GL_DEPTH, 0, &clearDepth );