EXAM: Corona Renderer for Instructors
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Question 1 of 78
1. Question
In photography, exposure value (EV) is a number that represents a combination of a camera’s shutter speed and f-number.
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Question 2 of 78
2. Question
With the Pick tool in the Corona Frame Buffer, you can select an object during the interactive rendering.
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Question 3 of 78
3. Question
From the list below, what is the most suitable file format to save your still images?
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Question 4 of 78
4. Question
With the Highlight compression, we can remove overexposed areas on our images.
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Question 5 of 78
5. Question
What is a LUT (Lookup Table)
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Question 6 of 78
6. Question
When saving in CXR, can we open that file directly in Photoshop?
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Question 7 of 78
7. Question
Which file type we can open with the Corona Image Editor?
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Question 8 of 78
8. Question
In the Corona Camera, when “Use simple EV” is on, the exposure will be managed with the value on the VFB.
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Question 9 of 78
9. Question
With Corona, we can only use the camera target for the DOF to define the area of focus.
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Question 10 of 78
10. Question
What setting will we tweak in the camera if we want to get a stronger motion blur effect for an object?
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Question 11 of 78
11. Question
The bokeh shape is the result of the shutter’s shape.
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Question 12 of 78
12. Question
Where do Bloom and Glare appear on your images?
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Question 13 of 78
13. Question
The Corona Sun and Sky can be made only from the 3dsmax command panel.
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Question 14 of 78
14. Question
Which effect has the changing on the size multiplier for the Corona Sun?
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Question 15 of 78
15. Question
The most accurate sky model in Corona is the Hosek and Wilkie.
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Question 16 of 78
16. Question
The Corona Sky Improved model has not a turbidity value.
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Question 17 of 78
17. Question
In which menu we can find the DayLight System?
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Question 18 of 78
18. Question
HDR images can record and represent a greater range of luminance levels.
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Question 19 of 78
19. Question
To understand if an HDRI has enough quality, which information is the most relevant?
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Question 20 of 78
20. Question
The most effective way for Image Based Lighting is to load an HDRI in the 3dsmax standard bitmap.
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Question 21 of 78
21. Question
If you want to change the exposure of an HDRI for the Image-Based Lighting, which is the most suitable map you would use?
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Question 22 of 78
22. Question
To get more direct illumination from an HDRI, the correct way is to apply a Corona Color Correct map and change the gamma value.
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Question 23 of 78
23. Question
The Multimaps is an option to:
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Question 24 of 78
24. Question
The LightMix also considers the Corona Light Material.
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Question 25 of 78
25. Question
The Lightmix can separate the lighting contribution by:
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Question 26 of 78
26. Question
Accent lighting is trendy in museums, galleries, and art exhibitions.
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Question 27 of 78
27. Question
The only place from where you can create Corona Lights is through the toolbar.
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Question 28 of 78
28. Question
With the sphere light, you can’t change the directionality parameter.
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Question 29 of 78
29. Question
Which units break the link between the light intensity and its dimension?
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Question 30 of 78
30. Question
To create IES Lights in Corona, we need a particular texture map.
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Question 31 of 78
31. Question
The IES file for photometric data refers to:
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Question 32 of 78
32. Question
The Corona Light Materials can be applied:
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Question 33 of 78
33. Question
According with the guidelines for the PBR, when we import a texture in 3DS Max for the diffuse, we must:
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Question 34 of 78
34. Question
When creating PBR materials, we divide them into two different categories:
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Question 35 of 78
35. Question
The Corona Material is PBR based.
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Question 36 of 78
36. Question
The Diffuse for non-metals material can be set with pure white and pure black values.
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Question 37 of 78
37. Question
The Translucency Fraction controls:
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Question 38 of 78
38. Question
The translucency color can’t be changed because it is directly connected to the diffuse.
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Question 39 of 78
39. Question
Anisotropy is the parameter that controls the shape of the glossy reflection highlight.
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Question 40 of 78
40. Question
To get realistic results on transparent objects, it is essential:
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Question 41 of 78
41. Question
The IOR controls how much a ray of light is scattered when entering the object.
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Question 42 of 78
42. Question
To create caustics in Corona Renderer, we need to activate their calculation in the Performances menu and in the Corona Material.
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Question 43 of 78
43. Question
Volumetric scattering is best suited for thick, opaque materials, like marble or skin.
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Question 44 of 78
44. Question
In the scattering color, setting a non-black color will enable the volumetric scattering.
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Question 45 of 78
45. Question
A bump map creates geometrical details on the surfaces where it is applied, and it modifies the geometry.
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Question 46 of 78
46. Question
The Corona Material’sMaterial’s self-illumination is the best option to use when we’ve to illuminate a scene with artificial lights.
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Question 47 of 78
47. Question
The CoronaVolumeMtl contains two main controls:
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Question 48 of 78
48. Question
The Corona Multimap is a powerful node that allows you to randomize UVW coordinates for a single texture.
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Question 49 of 78
49. Question
In the Corona Multimap, with the use of “Batch load textures…” option, you can:
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Question 50 of 78
50. Question
The Uvw Randomizer map can generate the effect of randomized tiling, which prevents the artificial texture repetitions often visible on very large surfaces.
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Question 51 of 78
51. Question
In the UVW Randomizer, the “Step” value decides:
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Question 52 of 78
52. Question
The Corona Distance Map works by applying different colors to a material based on the object’s distance and another.
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Question 53 of 78
53. Question
Corona AO is raytraced, so it is computed only when the rendering starts.
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Question 54 of 78
54. Question
In the CoronaAO, the Color spread is the parameter that controls:
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Question 55 of 78
55. Question
The displacement map can be applied only to the Corona Material.
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Question 56 of 78
56. Question
The Corona Round Edges is:
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Question 57 of 78
57. Question
The Corona Wirecolor render element is the most suitable to extract masks for the objects in the scene.
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Question 58 of 78
58. Question
Which render element is the most suitable to improve our final images’ reflections in post-production?
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Question 59 of 78
59. Question
Corona Renderer, by default, doesn’t calculate the masks for transparent objects.
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Question 60 of 78
60. Question
Which value has to be used for the Noise Level Limit to ensure that the final image will be noise-free?
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Question 61 of 78
61. Question
If we are dealing with a scene with many geometrical details and DOF, which is the best way to improve the render time?
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Question 62 of 78
62. Question
In Corona it is not possible to resume a render unless we save the image in CXR.
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Question 63 of 78
63. Question
What is the best denoiser we’ve got in Corona Renderer?
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Question 64 of 78
64. Question
If we are rendering an exterior scene with many geometrical details and not a considerable amount of flat surfaces, which is the best way to calculate the GI?
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Question 65 of 78
65. Question
The Scattering menu lets you choose the scattering method: 1D on splines, 2D on surfaces and 3D in a bounding box.
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Question 66 of 78
66. Question
The Corona Proxy allows you to convert the geometries:
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Question 67 of 78
67. Question
If we have a light closer to a reflective object and see a lot of noise in the image, which is the correct way to resolve this issue?
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Question 68 of 78
68. Question
The Cshading_Albedo is a render element useful to:
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Question 69 of 78
69. Question
The Corona Layered Material allows you to blend different materials in a single material.
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Question 70 of 78
70. Question
When rendering animations with moving objects with Corona, the best way to calculate the GI and avoid flickering is using the UHD Cache as a secondary solver.
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Question 71 of 78
71. Question
In the Corona Lights, the generate caustics is always active.
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Question 72 of 78
72. Question
The Primary Rays or AA rays are responsible for collecting information about:
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Question 73 of 78
73. Question
If we set 0 (zero) as the Noise Level Limit value, the render engine will stop the calculation when it reaches a good quality.
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Question 74 of 78
74. Question
The Corona Image Editor can be considered as the Corona VFB outside 3ds Max.
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Question 75 of 78
75. Question
What defines “Noise” in our images?
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Question 76 of 78
76. Question
In the Corona Scatter, you can also use a colored Map to control the instanced objects’ size in the Scale settings.
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Question 77 of 78
77. Question
In the Corona Interface, from which panel you can set the #number of threads?
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Question 78 of 78
78. Question
The CMasking_Mask render element can extract masks by: