Aim
The aim of the assignment is to link your theoretical knowledge with the tools of the 3D modelling software Blender. The assignment is the result of the activity on the online lesson.
The second topic covers materials.
Modelling in Blender
Create a simple scene with several objects (e.g. sphere, torus, teapot, bunny etc.) and a plane, which serves as an underlay to these objects.
Each object has its own base color (set in Materials tab). The objects do not have to be textured.
Document structure
You will create a (.pdf) file with several dozens of figures. Each figure is described by few sentences describing the settings of a certain parameter, property or a object. Also, explain and show (if possible) the main principle, how the parameters are computed, or how they affect the scene.
Please, use separate figures (rendered images) and descriptions for each change of the settings of the scene.
Example:
Now the scene contains only one spotlight with the apex placed above the cube. The beam is characterized by the circular cone, with following parameters:
- Size: 45° – the angle near the apex of the cone.
- Blend: 0.150 – this value describes the softness of the edge of the spotlight, i.e. the minimal value 0 means that the edge is sharp, the maximal value 1 means that the edge is blurred, softened.
What has to be included and discussed
The front page – includes the name of the project, your name, study program and academic year.
Smooth vs. flat shading – show and explain the difference between the two
Discuss the following parameters of the Principled BSDF shader (e. g. explain what they do and demonstrate it on the different values):
- Base color
- Metallic
- Specular / specular tint
- IOR / transmission
Create a 3D model of a ring (e.g. torus + icosphere) and choose the specific type of metal for the torus (e.g. gold, silver, steel) and the specific type of stone for the icosphere (e.g. ruby, diamond, emerald). Try to achieve as realistic look as possible and describe in detail the used settings for each of the material.
Since the stone is supposed to be a glass-like material, demonstrate the usage of Mix shader to create a transparent material.
Compare the mirrors using the screenspace reflections and light probes. Discuss and demonstrate the effect of parameters of screenspace reflections and mirror planes. Include different types of mirror objects (planes, round objects) and compare the effect of each method.
DO NOT COPY – PARAPHRASE!