IOR stands for index of refraction and is used to measure how light refracts through a surface relative to the viewing angle (Yourself), confusing at first but read on. Fresnel studied the behaviour of light and how it was transmitted and spread by different objects. The Fresnel Effect was first documented by the French physicist Augustin-Jean Fresnel (1788-1827).
Fresnel is a good approximation and is as close to physically correct materials as you can get whilst keeping the rendering times low. If you position yourself to the side of the monitor and look into the glass you will clearly see a reflection of the environment, but if you position yourself directly in front you will notice that the reflection is reduced. A good example of this would be to look at an old CRT monitor, where the viewing panel is glass. Most materials except metals have a Fresnel reflection, making the reflection strong at glancing angles but weak at more front on angles. White reflects the entire visible colour spectrum whereas black absorbs all colour. Polished marble (Depending on colour), 30 - 70 %ĭiffuse colour also affects the reflection intensity.However the following can be used as a guide.īy default the reflection colour acts as a filter for the diffuse colour and the stronger the reflection colour the dimmer the diffuse colour. You would commonly use a grey scale value to determine the reflection strength and there is no right or wrong value so you will have to take your best judgement. By using colour instead of grey scale you will get coloured reflections. White RGB (255,255,255) is fully reflective and black RGB (0,0,0) is not reflective at all. Like diffuse it uses a colour value to determine the reflection strength. The light rays are bouncing all over the place, and not being absorbed.Ĭan be used to simulate dust on a surface by controlling the way the surface reflects direct light. If you render an object that is pure white or pure black you will notice that there is no contrast. When creating a white or black material, set the colour values to an off white RGB (245,245,245) / black RGB (2,2,2). It is important to understand that no material in the real world is pure white RGB (25,255,255) nor pure black RGB (0,0,0). This is the actual colour of the surface, reflection and refraction colours can affect the visual appearance of this colour. And was credited for Altered Carbon (S2), Dark Crystal: Age of Resistance, Star Trek Discovery (S3), Alita: Battle Angel, Deadpool 2, Batman VS Superman, Godzilla, and many more.A more in depth look at each setting within a Vray material for version Vray 2.0. Oleksiy Golovchenko worked as a Matte Painter artist and Environment Supervisor for the past decade. He is a respected artist, teacher, and entrepreneur. He started as a structure modeler for Architects in 2006 he contributed to the "Game of Thrones" series, Thor, Assassins Creed, Independence Day, and more. If you are a Matte painter or looking to be one, you must watch this more than an hour Live stream!Ĭonrad Allan and Oleksiy Golovchenko provide two awards, silver & gold, for completing the Final status of the course assignments.Ĭonrad Allan has ten years of experience in CGI and matte painting. Finishing the secret final assignment and feedback for the unfinished assignments from the previous weeks. Finalizing Project 5 will review completed shots from weeks 9 and 10 and finishing any final DMP and 2D work done.
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Working on Project 5, working with Nuke, Multi-Frame camera projection, and learn how to QC (Quality check/Control) images. Starting Project 5, solving problems associated with moving plates and extension. Working with a simple 2.5D projection setup in Nuke, different camera moves. Setting Extension and environments cleanups.
will discover how to integrate CG renderings into an environment.
Starting your first project, seamlessly blending multiple photos into one cohesive image. The artistic fundamentals of color, perspective, composition, architectural and industrial rendering techniques. Getting familiar with basin junior tasks and the techniques to execute them successfully. They dedicated this live stream to answer all questions for Matte painting artists and taking you through the course modules. MattePaint has announced their 2nd run of the 12 weeks Matte painting course, coming on a live stream.