#5584: Render missing models using a custom texture

codereader · Dec 24, 2021 · d8f284f · d8f284f
1 parent 7a9e46a
commit d8f284f
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Showing 4 changed files with 34 additions and 4 deletions.
diff --git a/install/bitmaps/missing_model.tga b/install/bitmaps/missing_model.tga
diff --git a/radiantcore/model/NullModelNode.cpp b/radiantcore/model/NullModelNode.cpp
@@ -67,7 +67,7 @@ void NullModelNode::setRenderSystem(const RenderSystemPtr& renderSystem)
 {
     if (renderSystem)
     {
-        _fillShader = renderSystem->capture("");
+        _fillShader = renderSystem->capture("$MISSING_MODEL");
         _wireShader = renderSystem->capture("<1.0 0 0>");
 
         _renderableBox.clear();

diff --git a/radiantcore/rendersystem/backend/OpenGLShader.cpp b/radiantcore/rendersystem/backend/OpenGLShader.cpp
@@ -805,9 +805,14 @@ void OpenGLShader::appendBlendLayer(const IShaderLayer::Ptr& layer)
 // Construct a normal shader
 void OpenGLShader::constructNormalShader()
 {
-    // Obtain the Material
-    _material = GlobalMaterialManager().getMaterial(_name);
-    assert(_material);
+    constructFromMaterial(GlobalMaterialManager().getMaterial(_name));
+}
+
+void OpenGLShader::constructFromMaterial(const MaterialPtr& material)
+{
+    assert(material);
+
+    _material = material;
 
     _materialChanged = _material->sig_materialChanged().connect(
         sigc::mem_fun(this, &OpenGLShader::onMaterialChanged));
@@ -1273,6 +1278,29 @@ void OpenGLShader::construct()
 
                 enableViewType(RenderViewType::Camera);
             }
+            else if (_name == "$MISSING_MODEL")
+            {
+                // Render a custom texture
+                auto imgPath = module::GlobalModuleRegistry().getApplicationContext().getBitmapsPath();
+                imgPath += "missing_model.tga";
+
+                auto editorTex = GlobalMaterialManager().loadTextureFromFile(imgPath);
+                state.texture0 = editorTex ? editorTex->getGLTexNum() : 0;
+
+                state.setRenderFlag(RENDER_FILL);
+                state.setRenderFlag(RENDER_TEXTURE_2D);
+                state.setRenderFlag(RENDER_DEPTHTEST);
+                state.setRenderFlag(RENDER_LIGHTING);
+                state.setRenderFlag(RENDER_SMOOTH);
+                state.setRenderFlag(RENDER_DEPTHWRITE);
+                state.setRenderFlag(RENDER_CULLFACE);
+
+                // Set the GL color to white
+                state.setColour(Colour4::WHITE());
+                state.setSortPosition(OpenGLState::SORT_FULLBRIGHT);
+
+                enableViewType(RenderViewType::Camera);
+            }
             else
             {
                 assert(false);

diff --git a/radiantcore/rendersystem/backend/OpenGLShader.h b/radiantcore/rendersystem/backend/OpenGLShader.h
@@ -70,6 +70,8 @@ class OpenGLShader final :
     // built-in shader)
     void constructNormalShader();
 
+    void constructFromMaterial(const MaterialPtr& material);
+
     // Shader pass construction helpers
     void appendBlendLayer(const IShaderLayer::Ptr& layer);