## 4 Results
### Descriptive Statistics  
The following results were obtained for each of the questions:  
* Q1_1. Interest in Using the Tool in the Future: 66.7% of the students expressed interest in frequently using these tools in their future professional work as designers. * Q1_2. Perceived Necessity of the System-Tool: 66.7% of the participants did not consider the use of the system unnecessary, highlighting its potential utility in the design field. * Q1_3. Ease of Use of the System: 85.7% of the participants perceived the system as easy to use. * Q1_4. Need for Technical Assistance: 47.6% did not believe they required technical assistance to use the system, while only 14.3% felt that they would. * Q1_5. Integration of Drawing Functions: 71.4% agreed that the drawing functions were well integrated within the system. * Q1_6. Ease of Learning the System: 85.7% of the students felt that most people would learn to use the system quickly. Figure 4: 3D Modeling of Designs Previously Created Conceptually in IVR/IAR. Projects: Dome with Shape, Transparent Dome, The Drawing Palette, VMP Parking, VMP Bench, A Perfect Place for Your Scooter, Covered Rest Area with Tables and Bicycle Parking, and Seating Bench. Figure 5: Virtual Immersion Tour: Perceptual-Sensory Evaluation of Designed Virtual Elements. View in SketchUp software. * Q1_7. Comfort of Using the System: 71.4% indicated that they did not find the system uncomfortable to use. * Q1_8. Sense of Security When Using the System: 81% of the participants reported feeling secure while using the tool. * Q1_9. Complexity of the Initial Learning Process: 81% believed that it was not necessary to learn a great deal before starting to use the system. * Q1_10. Stress and Discomfort When Using the Tool: 66.7% did not experience irritation, stress, or discomfort while using the tool. * Q1_11. Mental Demand of Learning: 81% did not consider learning to sketch in 3D via virtual reality mentally demanding. * Q1_12: Physical Demand of 3D Sketching: 81% stated that sketching in 3D using virtual reality was not physically demanding. * Q1_13. Comparison with Paper Sketching: 57.1% of the students considered that sketching in VR enhances the conceptual design process compared to using paper and pencil. * Q1_14. Satisfaction with the Tool's Use: 85.7% of the participants found the experience of using the tool for the proposed purpose to be satisfactory. The Figure 6 illustrates the ratings for each question by the number of participants. The second survey, \"Beliefs about the Virtual Tour,\" evaluated the perceptions of the Mechanical Engineering students after an immersive experience in which they virtually explored the space at the Faculty of Fine Arts, where the previously designed urban and architectural elements were installed. During this activity, participants viewed both their own designs and those of their peers in a virtual reality environment. The results obtained are presented below:  
* Q2_1. Overall Comprehension of the Design: 85.7% of the students stated that virtual reality was valuable for comprehensively understanding both the exterior and interior design of the ephemeral space. * Q2_2. Perception of the Visual Impact on the Faculty Building: 71.4% of the participants indicated that virtual reality allowed them to appreciate the visual impact of the ephemeral space on the Faculty of Fine Arts building. Figure 6: Results of the Survey on the Use of 3D Sketching Tools. * Q2_3. Perception of Form, Colors, and Materials: 81% of the students agreed that virtual reality helped them better perceive the form, colors, and materials of the ephemeral space. * Q2_4. Value of Virtual Reality for Analyzing Interior Design: 90.5% considered virtual reality a valuable tool for analyzing and perceiving the interior design of an architectural space. * Q2_5. Comparison with Sketches/Drawings: 85.7% of the participants perceived that the immersive virtual reality experience provided a superior understanding compared to merely observing sketches or drawings. * Q2_6.