## 3 Results
### Case Studies in the Spanish Market
Diverse Shooting Options: During shooting, three complementary options are available: a traditional live-action workflow, a chroma backdrop, and an LED wall. In the latter two options, VEX is integrated into the shooting process. Post-production involves continuous feedback between editorial and VEX departments, ensuring a cohesive narrative. Assets created early in the process can be used for final pixel shots or serve as starting points for developing final assets, with real-time rendering enabling instant corrections and improvements [56]. Centralization of Departments: Real-time game engines can centralize various departments, including Layout, Look Development, Lighting, and Editorial, streamlining decision-making processes. The traditional linear pipeline limitations in revisions are overcome by allowing the director to see the entire work simultaneously, promoting more instinctive decision-making. This shift may lead to a sequence-based approach, reducing the need for specialists and fostering a dynamic collaboration among generalists [56]. Animation and Rendering Changes: The animation and rendering of characters and props will resemble on-set procedures, focusing on performance and selecting the perfect camera angle. The need for extensive digital compositing will diminish as real-time rendering allows adjustments before the final film rendering. Smaller, more iterative creative teams are anticipated, with the game engine serving as a hub for multiple departments in animated productions [56]. In addition, the advancements in generative artificial intelligence (AI) tools to generate 3D assets, materials, and even full environments forecast a near future where it will be possible to generate complex 3D environments from a simple prompt. Some generative tools already present in the market herald a transformative future trend in a smaller scope. Tools like Arrbreader, Promethean AI, RunwayML, and NVIDIA's GauGAN are at the forefront of this evolution, offering capabilities to automate and enhance the creation of 3D assets, textures, landscapes, and more [59; 60; 61; 62]. These AI-driven platforms enable users to generate detailed and realistic environments, characters, and textures with increased efficiency and reduced manual effort. By allowing developers and artists to describe desired outcomes in natural language or through simple sketches, these tools significantly streamline the development process. This symbiosis between AI and Unreal Engine not only accelerates production timelines but also opens up new avenues for creativity and innovation in VPX projects. As we look to the future, the continued advancement and integration of AI technologies promise to further revolutionize the field of indie virtual production. The near future is marked by the continuous democratization of virtual production thanks to the fast evolution of these tools, making sophisticated filmmaking accessible to indie creators and expanding narrative and aesthetic possibilities across the industry. These technological advancements are not just reshaping current filmmaking practices but are also signaling a future where storytelling converges with interactive, immersive experiences, marking a new era of efficiency, creativity, and audience engagement in the film industry. Building on this, the real-world application of VPX in Spanish indie filmmaking vividly illustrates the transformative impact highlighted above. By embracing virtual production, Spanish indie filmmakers are not just adopting new technologies; they are pioneering a shift in cinematic creation that aligns with the global trend towards more dynamic, cost-effective, and collaborative filmmaking processes. In the context of Spanish indie filmmaking, Virtual Production Extensions (VPX) have revolutionized traditional workflows, enabling more agile and cost-effective production processes. By integrating real-time rendering and LED wall technologies, indie filmmakers can now achieve Hollywood-level visual effects on limited budgets, fostering creative freedom and innovation.