Some work on getting translucent objects to render behind other ones.…

… Too many issues to enable for now though.
MBU-Team · May 24, 2021 · 73e01df · 73e01df
1 parent ad5a6f7
commit 73e01df
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Showing 4 changed files with 20 additions and 2 deletions.
diff --git a/engine/materials/customMaterial.cpp b/engine/materials/customMaterial.cpp
@@ -77,6 +77,15 @@ bool CustomMaterial::onAdd()
 
     mShaderData = static_cast<ShaderData*>(Sim::findObject(mShaderDataName));
 
+    // TEMP: Disable this until we can figure out the z-fighting and brightness issues with this.
+    // Allow translucent objects to be seen behind each other
+    /*for (S32 i = 0; i < MAX_PASSES; i++)
+    {
+        CustomMaterial* mat = pass[i];
+        if (mat && mat->translucent)
+            subPassTranslucent = true;
+    }*/
+
     return true;
 }
 
@@ -489,7 +498,7 @@ bool CustomMaterial::setupPass(SceneGraphData& sgData)
     }
 
 
-    if (translucent)
+    if (isTranslucent())
     {
         GFX->setAlphaBlendEnable(true);
         setBlendState(translucentBlendOp);
@@ -511,6 +520,12 @@ bool CustomMaterial::setupPass(SceneGraphData& sgData)
 
     setupSubPass(sgData);
 
+    /*if (!setNextRefractPass(sgData.refractPass))
+    {
+        cleanup();
+        return false;
+    }*/
+
     return true;
 }
 

diff --git a/engine/materials/material.cpp b/engine/materials/material.cpp
@@ -101,6 +101,7 @@ Material::Material()
     doubleSided = false;
 
     translucent = false;
+    subPassTranslucent = false;
     translucentBlendOp = LerpAlpha;
     translucentZWrite = false;
 

diff --git a/engine/materials/material.h b/engine/materials/material.h
@@ -159,6 +159,7 @@ class Material : public SimObject
     bool              dynamicCubemap;
 
     bool              translucent;
+    bool              subPassTranslucent;
     BlendOp           translucentBlendOp;
     bool              translucentZWrite;
 
@@ -220,6 +221,7 @@ class Material : public SimObject
     virtual void setStageData();
 
     MatType getType() { return mType; }
+    bool isTranslucent() { return translucent || subPassTranslucent; }
 
     DECLARE_CONOBJECT(Material);
 };

diff --git a/engine/renderInstance/renderInstMgr.cpp b/engine/renderInstance/renderInstMgr.cpp
@@ -157,7 +157,7 @@ void RenderInstManager::addInst(RenderInst* inst)
         AssertFatal(instMat->renderBin >= 0 && instMat->renderBin < NumRenderBins, "doh, invalid bin, check the renderBin property for this material");
         mRenderBins[instMat->renderBin]->addElement(inst);
     }
-    else if (inst->translucent || (instMat && instMat->translucent) || (inst->visibility < 1.0f))
+    else if (inst->translucent || (instMat && instMat->isTranslucent()) || (inst->visibility < 1.0f))
     {
         PROFILE_END();
         if (!hasGlow)