diff --git a/hecl/extern/boo b/hecl/extern/boo
index 6504bfc8c..295d100ca 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 6504bfc8c87403801f38947b06ed2a30f10978fb
+Subproject commit 295d100ca3879016083b4fc20b45d0001e2fc13e
diff --git a/hecl/lib/Backend/GLSL.cpp b/hecl/lib/Backend/GLSL.cpp
index 9a48c3225..ba427fc2c 100644
--- a/hecl/lib/Backend/GLSL.cpp
+++ b/hecl/lib/Backend/GLSL.cpp
@@ -118,7 +118,7 @@ std::string GLSL::makeVert(const char* glslVer, unsigned col, unsigned uv, unsig
             GenerateVertInStruct(col, uv, w) + "\n" +
             GenerateVertToFragStruct() + "\n" +
             GenerateVertUniformStruct(s, tm) +
-            "out VertToFrag vtf;\n\n"
+            "SBINDING(0) out VertToFrag vtf;\n\n"
             "void main()\n{\n";
 
     if (s)
@@ -173,7 +173,7 @@ std::string GLSL::makeFrag(const char* glslVer,
             GenerateVertToFragStruct() +
             "\nlayout(location=0) out vec4 colorOut;\n" +
             texMapDecl +
-            "in VertToFrag vtf;\n\n" +
+            "SBINDING(0) in VertToFrag vtf;\n\n" +
             lightingSrc + "\n" +
             "void main()\n{\n";
 
@@ -223,7 +223,7 @@ std::string GLSL::makeFrag(const char* glslVer,
             GenerateVertToFragStruct() +
             "\nlayout(location=0) out vec4 colorOut;\n" +
             texMapDecl +
-            "in VertToFrag vtf;\n\n" +
+            "SBINDING(0) in VertToFrag vtf;\n\n" +
             lightingSrc + "\n" +
             postSrc +
             "\nvoid main()\n{\n";
@@ -455,7 +455,7 @@ struct SPIRVBackendFactory : IShaderBackendFactory
 
         atUint32 vertSz = vertBlob.size() * sizeof(unsigned int);
         atUint32 fragSz = fragBlob.size() * sizeof(unsigned int);
-        atUint32 pipelineSz = pipelineBlob.size() * sizeof(unsigned int);
+        atUint32 pipelineSz = pipelineBlob.size();
 
         size_t cachedSz = 15 + vertSz + fragSz + pipelineSz;
 
diff --git a/hecl/test/main.cpp b/hecl/test/main.cpp
index 12baebffc..0ed9abeaf 100644
--- a/hecl/test/main.cpp
+++ b/hecl/test/main.cpp
@@ -86,6 +86,7 @@ struct HECLApplicationCallback : boo::IApplicationCallback
 
                 /* Compile HECL shader */
                 static std::string testShader = "HECLOpaque(Texture(0, UV(0)))";
+                //static std::string testShader = "HECLOpaque(vec4(1.0,1.0,1.0,1.0))";
                 hecl::Runtime::ShaderTag testShaderTag(testShader, 0, 1, 0, 0, 0, boo::Primitive::TriStrips, false, false, false);
                 boo::IShaderPipeline* testShaderObj =
                 shaderMgr.buildShader(testShaderTag, testShader, "testShader", ctx);
@@ -200,7 +201,7 @@ struct HECLApplicationCallback : boo::IApplicationCallback
             vubo->load(&vuboData, sizeof(vuboData));
 
             gfxQ->setShaderDataBinding(binding);
-            gfxQ->draw(0, 4);
+            gfxQ->drawIndexed(0, 4);
             gfxQ->resolveDisplay(renderTex);
             gfxQ->execute();