A results table has been created below to show the difference between the file sizes and dimensions of the wooden texture. Also some brief comments have been made after looking at the renders at each stage.| Dimension | File Size | Effect |
| 2560x1878 | 2.1MB | Very good,define grain and depth of gaps between the wood. |
| 1024x512 | 1.5MB | Not much change, the grain has altered slightly but the depthe is still there. |
| 512x256 | 383KB | Grain and gaps have started to lightly blur, but still fairly define. |
| 256x128 | 96KB | Not very good at all the grain is non existant and the gaps are blurred into one with the wood. |
Evaluation
After the scene was created the textures that were assigned to the objects were looking flat and this made the scene uninteresting. The bump map and specular map gave these objects the realistic depth they needed as if they were in the real world. These changes can be very subtle especially when a light is optimising these irregular details such as the stone look on the plant pot. Whilst the combination of specular and reflective maps gave the objects in the scene gave the feel of light, the best example is the edges of the plant pot where the light is emphasising the boundaries of the objects. After getting the scene to look more realistic the file sizing part of this artefact was to optimise the dimension of the textures and compromising between the physical size of the texture and the eventual output render of the texture by changing its dimensions. As textures have to be a power of 2 for graphics cards to cope easily - the process began at 1024 and worked down to 128. From the results table the best dimensions were obviously the higher 1024x512 and this file size was large especially if multiple textures were to be involved and the worst were 256x128. The later saw bad results in terms of a realistic texture to an object, the wood looked bare and too specular for the scene. The best result that had the most excellent compromise were the dimensions of 512x256. This is justified by the small physical file size 383KB (from 2.1MB) and a respectable amount of detail lost in the final render that did not compromise the scene.
Conclusion
Another in depth experiment that could have been produced to make this artefact would have been to test the different dimensions of mapping textures such as the bump and specular maps that are applied to the texture and notice the difference in realism and file sizes. If optimizing these file sizes and compromising the final render, the scene can be created for very little physical memory with excellent results.
