Fix multithreaded rendering

openVulkanoCpp/Vulkan/Resources/ResourceManager.cpp

@@ -345,6 +345,7 @@ namespace OpenVulkano::Vulkan
 	VulkanShader* ResourceManager::CreateShader(Scene::Shader* shader)
 	{
 		const std::unique_lock lock(mutex);
+		if (shader->renderShader) return static_cast<VulkanShader*>(shader->renderShader);
 		VulkanShader* vkShader = new VulkanShader();
 		vkShader->Init(context, shader, this);
 		shaders.emplace_back(vkShader);

openVulkanoCpp/Vulkan/Scene/VulkanShader.cpp

@@ -33,7 +33,6 @@ namespace OpenVulkano::Vulkan
 		this->shader = shader;
 		this->owner = owner;
 		this->context = context;
-		shader->renderShader = this;
 		shaderModules.reserve(shader->shaderPrograms.size());
 		shaderStageCreateInfo.resize(shader->shaderPrograms.size());
 		int i = 0;
@@ -45,6 +44,7 @@ namespace OpenVulkano::Vulkan
 			i++;
 		}
 		BuildPipeline();
+		shader->renderShader = this;
 	}
 
 	void VulkanShader::BuildPipeline()