1 files changed, 20 insertions, 0 deletions
diff --git a/src/render/renderers/opengl/graphicshelpers/graphicshelperes3_2.cpp b/src/render/renderers/opengl/graphicshelpers/graphicshelperes3_2.cpp
index 6290d091d..9dce08e4f 100644
--- a/src/render/renderers/opengl/graphicshelpers/graphicshelperes3_2.cpp
+++ b/src/render/renderers/opengl/graphicshelpers/graphicshelperes3_2.cpp
@@ -52,6 +52,10 @@ QT_BEGIN_NAMESPACE
 #define GL_DEPTH_STENCIL_ATTACHMENT       0x821A
 #endif
 
+#ifndef GL_PATCH_VERTICES
+#define GL_PATCH_VERTICES 36466
+#endif
+
 namespace Qt3DRender {
 namespace Render {
 
@@ -63,6 +67,17 @@ GraphicsHelperES3_2::~GraphicsHelperES3_2()
 {
 }
 
+bool GraphicsHelperES3_2::supportsFeature(GraphicsHelperInterface::Feature feature) const
+{
+    switch (feature) {
+    case GraphicsHelperInterface::Tessellation:
+        return true;
+    default:
+        break;
+    }
+    return GraphicsHelperES3_1::supportsFeature(feature);
+}
+
 bool GraphicsHelperES3_2::frameBufferNeedsRenderBuffer(const Attachment &attachment)
 {
     Q_UNUSED(attachment);
@@ -97,6 +112,11 @@ void GraphicsHelperES3_2::bindFrameBufferAttachment(QOpenGLTexture *texture, con
     texture->release();
 }
 
+void GraphicsHelperES3_2::setVerticesPerPatch(GLint verticesPerPatch)
+{
+    m_extraFuncs->glPatchParameteri(GL_PATCH_VERTICES, verticesPerPatch);
+}
+
 } // namespace Render
 } // namespace Qt3DRender