Free tutorials computer graphics tutorials

The tutorials on different subjects of the computer graphics knowledge area. Here may be found the tutorials of the photorealistic 3d rendering, animation, 3d-modelling, setup of the renderers, network rendering and much other. Studying these materials, you surely raise your professional knowledge to a new level.

Quality HDR Rendering for Photorealistic Imaging computer graphics tutorial image

HDR Rendering for Photorealistic Imaging

In this tutorial we explain what is the HDR rendering and how you can control the brightness of the final render using it, easily getting rich and outstanding pictures. It answers the following questions. What is HDR? What does LDRI mean? How to post-process HDRIs using Photoshop? How to render HDRIs from V-Ray? Which image format is the best to save HDR renders? How to deal with ovebrights in the window and near it? How to lighten the dark rendering?
Quality Best V-Ray Settings – Raycasting computer graphics tutorial image

Best V-Ray Settings – Raycasting

In this tutorial, we will look into the settings of the V-Ray:: System rollout. It answers the following questions: How to avoid the 3ds Max crash when it is not enough RAM? What should I do when V-ray turning off during rendering? How to deal the RAM lack in V-Ray? How to render the scene with many milloins of polygons? How to make computer work faster during rendering? What is raycasting and how V-Ray accelerates its work? What is BSP tree and how does its structure look like in V-Ray? What is the difference between Static Raycaster and Dynamic Raycaster? When does V-Ray use paging or swapping? How to switch V-Ray for working with dynamic raycaster? What are the Vray buckets? Why do we need the VRay rendering logs? How to change the V-Ray rendering process priority? What should I do if V-Ray crashes during the Light Cache calculation? How to calculate the best amount for Dynamic Memory Limit?
Quality Best V-Ray Settings – DMC Sampler computer graphics tutorial image

Best V-Ray Settings – DMC Sampler

In this tutorial we will get acquainted with the V-Ray’s system settings responsible for the speed and quality of the rendering process. It answers the following questions. What is adoptability of V-Ray and what are its advantages? What is the V-Ray DMC Sampler? How does the DMC Sampler work? What is the actual number of samples for blurry effects calculation in V-Ray? How to setup DMC Sampler? What is the difference between the noise threshold and adaptive amount parameters? What effects are influenced by global subdivs multiplier? How to control the quality of rendering in V-Ray? How to speed up V-Ray rendering? How to setup V-Ray draft render?
Quality Best V-Ray Settings – GI Engines Choice computer graphics tutorial image

Best V-Ray Settings – GI Engines Choice

In this tutorial we will decide, which of GI rendering algorithms such as Brute force, Photon Map, Irradiance map, and Light cache, are the best for calculation of the global illumination. This tutorial answers the following questions. Which GI rendering algorithms are best in Vray? Which rendering engine should we choose for primary bounces and why? With what engine should we render the secondary bounces and why? What problems exist in GI maps and what should be done to eliminate them? Why does the noise or dirt on the fine detail of the scene appear? How to get rid of the smudges in the corners and on the cornices?
Quality Best V-Ray Settings - Light Cache computer graphics tutorial image

Best V-Ray Settings - Light Cache

In this tutorial, we will learn about the GI bounces rendering algorithms Photon mapping and Light Cache. Also, we’ll study in detail the working principle and each function of Light cache, as well as learn about the optimal values of its settings. This tutorial answers the following questions. What a photon map is and how it works? What are the disadvantages of using the photon map? How does a modified photon map algorithm Light cache work? What is a cell of Light cache? How can Light cache store direct light and calculate the diffuse reflections? How and why do the Light cache filters work? What is the difference between Pre-filtering and Filtering? What are the values in the Light cache settings that provide the most acceptable result?
Quality Best V-Ray Settings - Irradiance Map computer graphics tutorial image

Best V-Ray Settings - Irradiance Map

We continue to setting up the global illumination in V-Ray. In this tutorial, we will look into the principles, parameters and arguments for and against the calculation algorithms of secondary GI bounces Brute Force and Irradiance Map. This tutorial answers the following questions. How does Brute force GI engine work? Where is the Quasi-Monte Carlo GI engine gone? How does the Irradiance Map algorithm work? How does the three-dimensional irradiance map look like? How IM detects the details of the scene? What is IM prepass? Why we should not set the same values of Min and Max rate? How does Detail enhancement option in the Irradiance Map work? What Multipass does? What value of interpolation gives smooth, but detailed Irradiance Map? Why there may be bright light spots on the rendering and how to get rid of them?
Quality Best V-Ray settings - Indirect illumination computer graphics tutorial image

Best V-Ray settings - Indirect illumination

This tutorial is about theory and practice of the Global Illumination in 3ds max V-Ray. This tutorial answers the following questions. What is the indirect illumination? How do indirect lighting looks in nature? How does the global illumination differ from the secondary? What are the diffuse reflected rays? How the GI algorithm implemented in computer graphics? What are the primary bounces and how they differ from the secondary ones? How the hemispheric diffuse reflections look schematically? How to setup the GI in Vray on practice? How the global illumination affects the overall scene lighting? What is color bleeding and how to fight with it? What are the GI caustics? What are the correct values for the primaries and secondaries? Global illumination is one of the modern rendering engine algorithms, which adds to the final image an additional render element. For ease of understanding of the rendering engine, the simplest way to imagine forming of final image as...
Quality Best V-Ray settings - Antialiasing and Color mapping computer graphics tutorial image

Best V-Ray settings - Antialiasing and Color mapping

This tutorial tells about the settings of the V-Ray tab of the Render Scene: (F10) window and answers the following questions: What are the best universal settings for V-Ray interior rendering? How to setup Vray for good exterior renderings? What is the optimal settings combination for quality V-Ray product visualization? How to make the basic start AA settings setup for Vray render? In this tutorial, we will look into the one of the fundamental and, probably, the most controversial and frequently raised subjects in the 3d rendering. It is the rendering engine setup. We will setup the V-Ray renderer for 3ds Max. Among the many of 3d artists, especially the beginners, the two contrast myths about universal V-Ray setups exist. One believes there are some simple setups, which are carefully hided from them by professionals by keeping the tuning secrets in a strict confidence. Only the chosen people know the secret checkboxes and values that allow creating realistic 3d renderings, which hit the awards and admiration of the all observers. That there supposedly are some settings, just like the "magic wand", which by checking some ticks in covert places lets to have the amazing results despite the actual quality of the 3d models, correct lighting setup or beauty and realism of the present scene composition.
Quality Making shaded wireframe rendering computer graphics tutorial image

Making shaded wireframe rendering

The CG tutorial of how to render shaded clay wireframe with isoline mesh in 3ds max using V-Ray or mental ray renderer, and how to perform its compositing with Photoshop or the 3ds Max only with help of black-and-white gradient mask. Many of the 3d-artists at least once faced the need or desire to make the wireframe rendering. And they asked questions like: How to render wireframe in V-Ray or Mental Ray? How to perform the isoline render? How to make a shaded mesh rendering? How make a post production to a wireframe rendering? These are the questions this tutorial will answer and will show the easy and usable ways of creating model's mesh renderings.
Quality Creating virtual 360 Panorama computer graphics tutorial image

Creating virtual 360 Panorama

CG tutorial about how to create and render interactive 360 degree panorama for architecture virtual tour in 3ds Max using V-ray or mental ray renderer. About why you shouldn't use the 3ds max panorama exporter and how to achieve the best quality panoramic map picture with panoramic 360 degree camera in 3d max. Of why you don't want to render panoramic cube map and how to get the QuickTime output or flash file with the panorama software. Everybody knows how important the visualization and its role is in presentation of the design to the end user with nice photorealistic images. But what if just the series of static images is not enough? What if the client wants a greater sense of presence and volume than the 2d bitmap images, while doing the animation is impractical because of the significant time and computational costs? The answer to this rhetorical and quite topical question is the pseudo three-dimensional representation of 2d images using 3d interactive panoramas technology. Such a presentation will let us see a three-dimensional picture of the visualization using the...
Quality Orthographic projection in 3ds Max and V-Ray computer graphics tutorial image

Orthographic projection in 3ds Max and V-Ray

CG tutorial about how to render orthographic projection in 3ds Max and V-Ray without using VRayPhysicalCamera. About how to render a facade without perspective distortion using orthographic projection option in 3ds Max's camera.
Quality Switching from VRayPhysicalCamera to standard computer graphics tutorial image

Switching from VRayPhysicalCamera to standard

It is important to know how to go to a standard camera, even if the scene was originally set up to work with V-Ray Camera. CG tutorial about how to switch from VRayPhysicalCamera to a Standard 3ds Max's camera and render the same scene without loosing quality and lighting difference, even if the scene was originally set to use VRayPhysicalCamera. About how to control exposure while rendering with a Standard 3ds Max camera and V-Ray.
Quality VRaySky and ColorCorrect computer graphics tutorial image

VRaySky and ColorCorrect

Computer graphics tutorial about how to illuminate the scene using the parametric HDRI map called VRaySky using ColorCorrect 3ds Max plug-in and about how to perform the color correction of the Global Illumination (GI) in V-Ray, not limiting with ozone and turbidity parameters only. VRaySky illumination correction with ColorCorrect 3ds Max plug-in.
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Gamma 2.2 Tip

A quick tip for how to change Gamma to 2.2 in V-Ray and 3ds Max.
Quality Using Gamma 2.2 computer graphics tutorial image

Using Gamma 2.2

The detailed description of the work with Gamma 2.2 in 3ds Max and V-Ray. Description of the gamma concept and using it when rendering photo-realistic images. CG tutorial about how to get nice sharp and saturated details in the shadows and how to get rid of overbrights in middle tones using gamma in VRay Color Mapping. Also a explanation of how to instead of the discolored and desaturated texture maps get the contrast juicy textures when rendering in gamma 2.2 in vray.
Quality ColorCorrect computer graphics tutorial image

ColorCorrect

Computer graphics tutorial about the purpose of the ColorCorrect plugin and about why you may want to use it in maps and materials. About how to add new parametric functions to the already existing procedural and texture maps of the 3ds Max using the ColorCorrect plug-in, and the link to the author's website, where you can download the latest version of the this tool for free.