From 7aa0367a3bf0f5b07556b6fb610f838bfd1ffc4f Mon Sep 17 00:00:00 2001
From: Nick Fisher <nick.fisher@avinium.com>
Date: Tue, 17 Dec 2024 14:03:57 +0800
Subject: [PATCH] internal: *Material_createInstance

---
 thermion_dart/native/src/c_api/TMaterialInstance.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/thermion_dart/native/src/c_api/TMaterialInstance.cpp b/thermion_dart/native/src/c_api/TMaterialInstance.cpp
index 9ef94aec..19f51115 100644
--- a/thermion_dart/native/src/c_api/TMaterialInstance.cpp
+++ b/thermion_dart/native/src/c_api/TMaterialInstance.cpp
@@ -1,4 +1,5 @@
 #include <filament/MaterialInstance.h>
+#include <filament/Material.h>
 #include <math/mat4.h>
 #include <math/vec4.h>
 #include <math/vec2.h>
@@ -13,6 +14,12 @@ namespace thermion
     {
 #endif
 
+        EMSCRIPTEN_KEEPALIVE TMaterialInstance *Material_createInstance(TMaterial *tMaterial) {
+            auto *material = reinterpret_cast<filament::Material*>(tMaterial);
+            auto *instance = material->createInstance();
+            return reinterpret_cast<TMaterialInstance*>(instance);
+        }
+
         EMSCRIPTEN_KEEPALIVE bool MaterialInstance_isStencilWriteEnabled(TMaterialInstance *tMaterialInstance)
         {
             return reinterpret_cast<::filament::MaterialInstance *>(tMaterialInstance)->isStencilWriteEnabled();