Sunday, 13 June 2021

vrayies

 

3ds max and vrayies lights used to light the retail store unit I have created for a client

VRayIES

VRayIES lights are often used to recreate existing artificial light profile distributions, for interior scenes. 

Companies such ERCO and Color Kinetics have a host of exiting IES light profiles ready for download:

https://www.erco.com/download/en/

https://www.colorkinetics.com/global/support/ies

This article about ies lights is a small excerpt from my new book with Taylor and Francis/CRC Press, entitled:  V-Ray 5 for 3ds Max 2020: 3D Rendering Workflows 

For more information about my new book, please check the link directly below:   

 V-Ray 5 for 3ds Max 2020: 3D Rendering Workflows

 
http://jamiecardoso-mentalray.blogspot.com/2021/05/v-ray-5-for-3ds-max-2020-3d-rendering.html

  

 To create a VRayIES light, use some of the steps described earlier, and refer to my other tutorial about, setting up your Initial 3ds Max scene.

https://jamiecardoso-mentalray.blogspot.com/2020/09/v-ray-5-setting-up-your-initial-3ds-max.html


Followed by selecting  the VRayIES button, clicking the cursor in the Front/Left viewport , and dragging it down to create it.

Right click to exit light creation

< Creating a VRayIES light in the viewport>


 Once the VRayIES light has been created (with its target facing downwards), users can disable the Targeted function, to move the VRayIES light.

Most of the VRayIES parameters are self-explanatory. The following discussion will focus mainly on the most important ones. 

<VRayIES light parameters>


 Enable- It enables the light to be turned On, or Off.

Show distribution- It shows the distribution of the IES light in the viewport.

IES file-This toggle allows users to locate and plug IES light profile.

IES web profiles are based on a real-world light distribution. IES 14 is one of the most popular light profiles used to create patterns of pools of light on the floor, and walls.

Note: IES 14 is included in the book resources. 

< IES web file 14 loaded from dialog>

 

To preview the IES distribution in the shaded viewport, simply click on the User Defined text, and choose the Light and Shadows option.

Followed by choosing to, Illuminate with scene Lights.

 < User viewport option to Illuminate with scene Lights>

 

< Results of Illuminate with scene Lights in the viewport>


  If you happen to have a good graphics card, enable the V-Ray Viewport IPR (Interactive Production Rendering) to display a fast and accurate preview of the final render in the viewport.  

     < User viewport option to choose the V-Ray Viewport IPR >

                           

 Affect diffuse- This function determines whether the IES light will affect the diffuse color of objects, or not.

Enabled, by default.

Diffuse contribution-This function controls the intensity of the lights on the diffuse color of objects.

Default value, 1.0

Affect specular- This function determines whether the IES light will affect the specular/glossiness of objects, or not.

Enabled, by default.

Specular contribution- This function controls how much the IES light will affect the specular/glossiness of objects.

Default value, 1.0

Use light shape-This function controls how the shape of the light will be factored in to process the shadows and the illumination.

For shadows only, is used by default.

Override shape-If chosen, it disables the IES profile shape, and enables functions such as, Shape, Height, Width, Length and Diameter.

Override Intensity-This function controls how the IES light intensity will be used.

Rescale-This function matches the light intensity defined by the user.

Replace-This function recalculates(multiplies) the intensity based on the IES distribution.

Intensity type- This function determines the units of the light intensity.

Intensity value - This function controls the intensity of the IES light. 

< VRayIES light Intensity value set to 2500.0>

 

< Render result of Intensity value set to 2500.0>

 

 < Intensity value IES power set to 17800.0>
  

 

< Render result of Intensity value set to 17800.0>

                                           

To light up a fairly spacious scene it is recommended to create multiple ies lights. I often copy/instance (Ctrl+v) ies lights across the scene to speed up the rendering process substantially.  

Instance Clone Options enabled

  
Final render with vrayies lights

 

To download professional IES profiles, simply click on my google drive link below.

https://drive.google.com/drive/folders/1bQAivGC2n73Zjmqm0208OMIXYnK7OjxS?usp=sharing

 

Alternatively, you can create customised ies light profiles by using a plug-in called, Creator IES .

To download it, please click on my google drive link below:

https://drive.google.com/file/d/1ZZmkb1-RbrhaFqB6KIYBpYt5tKDywDah/view?usp=sharing

 

For more information on how to use this plug-in, please check my tutorial link below:

http://jamiecardoso-mentalray.blogspot.com/2012/12/creating-customised-ies-web-lights-for.html

 

I hope you have found this small excerpt useful. 


Ta

Jamie

P.S: Take care and Stay Safe 

Also, please Join my Patreon page or Gumroad page to download Courses; Project files; Watch more Videos and receive Technical Support. Finally, check my New channels below:

https://www.patreon.com/user?u=2469908  



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Course 1: VRay 3ds Max Interior Rendering Tutorials
                           

http://jamiecardoso-mentalray.blogspot.com/2019/12/season-greetings-vray-3ds-max-tutorial.html
  2: Season's Greetings VRay & 3ds Max Tutorial
                         

Course 3: Planning Applications for Verified Views

Course 4: 3d People + 3ds Max + VRay + Photoshop 

Course 5: Exterior Daylight with V-Ray + 3ds Max + Photoshop  


Course 6: Exterior Night with V-Ray + 3ds Max + Photoshop

Course 7: Interior Daylight with V-Ray + 3ds Max + Photoshop

Course 8: Interior Night with V-Ray + 3ds Max + Photoshop


Course 9: Studio Lights with V-Ray + 3ds Max + Photoshop

 






Important Terminologies & Descriptions:
 
 
V-Ray: Vray is a rendering engine that uses global illumination algorithms, including path tracing, photon mapping, irradiance maps and directly computed global illumination.
Furthermore, it is used as a commercial plug-in for third-party 3D computer graphics software applications such as 3ds max, Maya, Houdini, Blender, Nuke, etc,  for visualizations and computer graphics in industries such as media, entertainment, film and video game production, industrial design, product design and architecture.
 
Materials: Is a term often used to describe maps, textures,procedural maps or shaders, depending on the context the term is being used.
Some of the articles, Videos and Tutorials depicted here will take you through the process of applying materials.

 
Procedural materials: Is a term often used to describe maps with editable/proprietary parameters/functions.
Some of the articles, Videos and Tutorials depicted here will take you through the process of applying procedural materials.


Shaders: Is a term often used to describe complex materials with functions and procedural maps created for a specific purpose.
Some of the articles, Videos and Tutorials depicted here will take you through the process of applying shaders. 

Textures: Is a term often used to describe photographed  2d images to be later used in a toggle of a shader or procedural map.
Textures can be used in the Diffuse toggle, Reflect, Glossy effects, Bump, Displacement, etc. 

Some of the articles, Videos and Tutorials depicted here will take you through the process of applying textures.

3ds Max: Autodesk 3ds Max, formerly 3D Studio and 3D Studio Max, is a professional 3D computer graphics program designed to create 3D animations, models, games and images.
In addition, it has modelling, animation and movie effects capabilities, frequently used by video game developers, TV commercial studios and architectural visualization studios.
3ds Max also features shaders, dynamic simulations, particle systems, plug-ins, and much more, with its own scripting language.

Adobe Photoshop: Photoshop is a powerful raster based graphics program produced by the Adobe Corporation. 
It is widely used for a variety of photo/image editing purposes worldwide. The program has a huge number of filters, functions, plug-ins, scripts, etc.
In addition, there is a huge online support for this software, and countless online sites with tips and tutorials.
Finally, there are readily available books, online/college courses, and its full documentation at Adobe.com

3d Rendering: Is the process of converting the three dimensional (3D) data seen in a 3d scene into 2D image/s (rasterized).
The rasterization process include, the rendering parameters, the rendering engine, lights, 3d models, textures, shaders, and other effects. 
3D renders can be a sequence of animated objects/effects/cameras, or a single frame with a still camera and object/s.
Some of the articles, Videos and Tutorials depicted here will take you through the process of rendering.

Photorealistic Rendering: Is the Process or Art of making a typical Computer Generated Image/render (CGI) look indistinguishable from a real photo.
To achieve this, users often need to possess the skills and the"eye" to appreciate good photography, cameras, composition, lighting, shaders, materials, 3d modelling, rendering and have some post-production skills. 
Some of the articles, Videos and Tutorials depicted here will help you achieve truly photorealistic renderings. 


Post-Production: Is the process of creating effects or/and results after/post the main process.
This terminology can be used to describe the results (post-production) of main processes such as 3d renderings  and/or filming a scene.
The post-production often takes place in applications such as Photoshop, After Effects, Nuke, etc.   
Some of the articles, Videos and Tutorials depicted here will take you through the process.

Architectural Rendering, or architectural illustration/Visualization, is the art/process of creating two-dimensional images or animations depicting the attributes of an architectural design, while using state of the art applications such as, Autocad, 3ds max, VRay, Cinema 4d, Blender, Maya, Corona, Photoshop, etc

Some of the articles, Videos and Tutorials depicted here will take you through this amazing process.

Studio Lights are fundamental in the process of creating appealing images/renders.
The overall lighting determines not only the brightness and the darkness; but also the tone, mood and the atmosphere of a scene.
Hence the importance to control and manipulate the lights accordingly, in order to fully capture the textures and the vibrancy of your objects.
By distributing the shadows and the highlights accurately, you can achieve truly appealing images/renders.
Some of the articles, Videos and Tutorials depicted here will take you through the process of creating and applying Studio Lights.


Verified View/s: Is an accurate Photomontage of a proposed design/building, using the Guidelines for Landscape and Visual Impact Assessment (GLVIA3).

Photomontage in 3d Visualization: Is the process of incorporating a 3d object/design/building into a 2d image/photo, while matching the camera angle/settings, position and the overall lighting depicted in the 2d photo.  
This laborious process often requires the usage of a 2d and a 3d application.   

To create an accurate Photomontage/Verified View, the 3d Visualizer/specialist needs a: 3d context model to plot/plan the shots; a photo of the location in question; the survey data; camera information; a 2d and a 3d application to create the Final Verified View/s .
Some of the articles, Videos and Tutorials depicted here will take you through the process.


Planning Applications: These can be used to find out whether a proposed development is likely to be approved by the planning authority, before substantial costs are incurred developing a detailed design.


Planning Permissions: Is the legal process of determining whether proposed developments should be permitted. Responsibility for planning lies with local planning authorities (usually the planning department of the district or borough council). The legislation, policy and guidance that underpins planning in England can be found on the government's National Planning Practice Guidance

A 3d Visualiser works within the realm of 3d visualization, a sector of the Computer Graphics Industry (or CGI) that is primarily concerned with the visual presentation of design concepts and ideas. And a company within the 3d visualisation sector offers to its customers (among many things) 3d Visualization Services.

Interior design is the art and science of enhancing the interior of a building or/and a space to achieve a more aesthetically pleasing and comfortable environment for those using the space.

An interior designer is someone who plans, researches, coordinates, and manages such projects. Interior design is a multifaceted profession that includes conceptual development, space planning, site inspections, programming, research, communicating with the stakeholders of a project, construction management, and execution of the design.