11. advanced 3d modeling & rendering...
TRANSCRIPT
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Design Computing
11. Advanced 3d Modeling & Rendering 1
11/11/2015CAD & Graphics II | HOM2027 | Fall 2014 | Every Wednesday 2:00 pm – 5:50 pm
Jin Kook Lee, PhD. 02-2220-2645 | [email protected]
Assistant Professor, Space & Design IT Lab.Department of Interior Architecture Design, Hanyang University
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Where we are
- Architectural Modeling- Developing Arch Ideas- Prep for the Final Project
- Nov 18: Midterm Exam
- Nov 11: Your Final Plan
- Dec 2: Your Project Progress Report
- Dec 9: Final Project Dev.
- Dec 16: Final Project Presentation
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What to do today
1. Developing the final term project – To develop your idea!
2. Lab exercise 01: MR Caustics & Multi-pass effect
Render a scene
3. Lab exercise 02: HD rendering in MR
Render a high resolution (Full HD: 1920 X 1080 pixel) image using “Room Interior”
4. Lab Exercise 03: Rendering given building model (from the last week)
Render a scene
5. Lab Exercise 04: Your Office Interior Design - Modeling & Rendering
Render a scene & your *.max file
6. Requirements: All lab exercises outcome files should be submitted in “Shared Folder”
Appropriate *.max files &/or images in JPG format. Try to get your best!
Submit this week’s LE today
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What we have been walked through…
1.CAD & Graphics Fundamentals
2.3ds MAX Design 2015
3.Mental Ray (+ Vray)
4.Geometric Modeling + Architectural Modeling
5.… And what’s next?
- Elaborated/Skillful CAD & Graphics, using 3ds Max or etc.
- “Smart” CAD & Graphics BIM (Building Information Modeling)
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Final Term Project
A DA-like Digital Image for your final project
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Final Project: DA-like competition image, for this course
DA2014 Competition: Finished. 제 14회 대한건축학회 디지털건축대전- DA2014 Competition Website: http://digital-architecture.or.kr/- Previous award winners can be seen at: http://digital-architecture.or.kr/new_da/html/
3d rendering technique- SketchUP & Vray / 3dsMax & Vray / 3dsMax & Mental Ray
3d modeling technique- 3ds Max basics (primitives, modifiers) + editable poly modeling
3d design presentation technique- SketchUP, 3ds Max + renderers + Photoshop + etc. Hybrid method- 기말과제 파이널 (예정):
- option 1: 본인의 스튜디오 과제 파이널 이미지- option 2: 본인의 DA제출용 디지털건축 이미지 (실제 DA제출은 차기 DA공모전)
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DA2015 – 디지털건축 Presentation 부문 (Bi-annually base)
- 창의적 디지털 기법을 활용한 건축 이미지- 다양한 프로그램을 이용한 창의적 이미지 (사진합성 포함)- 사진의 경우 원본을 수정하여도 무방함. (창의적 기법 필수)- 3D 입체 기술을 이용한 정지화상(예: Anaglyph 및 편광방식 입체 이미지 등)- 세부적인 주제의 제한 없음
* 동일한 주제의 작품은 한 개의 응모 부문에만 출품할 수 있음
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Typical award winners:
Design a building of the future
http://da2015.or.kr/
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Design Idea & Concept Visualization
from IDEA Design book, A&C Publishing Co., Ltd.
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IDEA Design
By A&C Publishing Co., Ltd.
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THE SCOTTS TOWERArchitect_UNStudio, Location_singapore
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ZOOMLION HEADQUARTERSINTERNATIONAL PLAZA-SINGLE TOWERArchitect_amphibianArc, Location_Changsha, China
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ZOOMLION HEADQUARTERSINTERNATIONAL PLAZA-TWIN TOWERArchitect_amphibianArc, Location_Changsha, China
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ROCKMAGNETENArchitect_MV RDV & COBE
Location_Roskide, Denmark
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ATLANTIC CITY BOARDWALKHOLOCAUST MEMORIALArchitect_Kanjun Lee
Location_Atlantic City, USA
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POP-UP HOTELArchitect_PinkCloud.DK
Location_New York, USA
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INSTANT HOUSE<INSTANT LUNG>
Architect_Ryszard Rychlicki
Location_Milan, Italy
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BLOCK A101
Architect_KLNB Keeyong LEE + Nened BASIC architects
Location_Russia
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BUSAN OPERA HOUSEArchitect_Sunjin Engineering & Architecture Co. Ltd
Location_Busan, South Korea
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BUSAN OPERA HOUSEArchitect_Sunjin Engineering & Architecture Co. Ltd
Location_Busan, South Korea
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THE ICEBERG
Architect_CEBRA+JDS+SeRCH+Louis Pailard
Location_Aarhus, Denmark
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UDBETALING DANMARK HOLSTEBROArchitect_CEBRA Location_Holstebro, Denmark
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A MOSQUE FOR ALLArchitect_BIG Location_Tirana, Albania
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3d Modeling & Design Representation
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What’s this?
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What’s this?
Front
Bottom
Top
Left Right
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A chair design
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A chair design: Hide & Perspective
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From 2D drafting to 3D modeling
Plan: Top view
Plan: Front view Elevation
3D Axonometric (still 2D drawing)
3D Surface Model 3D Solid Model
2D Drafting 3D Modeling
Capturing some visualizations from the model:Rendering, Animation…
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Review – CAD history
The design is a drawing of the product e.g. Geometric drafting in 2D
The design is a surface model of the product e.g. Geometric surface modeling in 3D
The design is a 3D model of the product e.g. Solid modeling
The design is an editable 3D model of the product e.g. Parametric modeling
The design is the integrated representation of
all the compositional, analytical and fabrication
representations of the product
(Geometry is just one part of the model) e.g. Product Data Modeling, Building Information Modeling
H
W
D
Parameters:H, W, D
+ Information
Information Modeling
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Review: 3d graphics software interface
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Famous 3ds MAX. Since MS-DOS. Officially announced 3ds MAX at Siggraph 1995
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How to use computer software? – GUI (Graphical User Interface)
Menu
Icons / Toolbar
Tabbed (grouped) Icons / Toolbar (Ribbon Interface by Microsoft)
Typing,Clicking,Drag and drop,Key stroke …
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How to interact with computer software? – User Interfaces, as of 2012
CLI Command Line Interfaces- Command prompt
GUI Graphical User Interfaces- Windows, Mac
NUI Natural User Interfaces- Touch, motion, voice..
General software we use today
General CG software: for Efficiency and Precisione.g. AutoCAD command line
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Why 3d graphics software is very hard to learn?
Ideal interfaces for 3D modeling- 3d laser scanning… (from real world objects)- Image processing (from 2d pictures to 3d model)- Beyond keyboard & mouse:
Tangible devices for manipulating 3d objects in 3d way
Most 3d graphics tools)- Handling 3d objects on 2d screen!- Too complicated 3d modeling on 2d views- Too many icons! (limitation of GUI)- Too complex options, too many function
This gap makes you hard to get 3d graphics!
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Example - Another 3d modeling method: Laser Scanning
Laser Scanner
Scanning
Point Cloud
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Example - Another 3d modeling method: Image-based geometry reconstruction
Google image search
http://www.youtube.com/watch?v=sGNesS8vo4M&list=PL804CCE3AA34C3A40
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Actual reason – why 3d graphics software is too hard to learn?
Quiz – do you know these?
Ray tracing, global illumination…
Bump mapping, Phong Shading…
Bezier curve, Spline, NURBS, control point, segments…
UV mapping, UVW
Polygon mesh
Sweeping, lathing
Knowing about camera and lenses – focal distance, aperture, exposure…
Without understanding what are these, learning 3ds MAX is equivalent to “memorizing the order of clicking
buttons among hundreds of icons, in a messy GUI interface”.
If you understand the logic, rather than the order of clicking buttons, you can learn any complicated modern 3d modeling
& rendering software such as Rhino, Maya, Blender, Digital Project, and so on, of course including 3ds MAX.
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Review: 3d “Geometric” Modeling
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Geometry for making 3d objects
Modeling 3d object:
Creating an object (hard to do, except making primitives)
And Modifying it (very hard to do – modify in 2d geometry)
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Creating 3d objects
0 Primitives
A legendary Utah Teapot, developed by Martin Newell
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Creating 3d objects
1 Extrusion: extruding a polygon
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Creating 3d objects
2 Lathing: revolving a surface
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Creating 3d objects
3 Sweeping: sweep a section profile onto a polygon path
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Creating 3d objects
4 Others: Skinning, Boolean operation (CSG)…
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Preview: Building Information Modeling tool
Autodesk Revit – Building Object-based modeling
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Review – CAD history
The design is a drawing of the product e.g. Geometric drafting in 2D
The design is a surface model of the product e.g. Geometric surface modeling in 3D
The design is a 3D model of the product e.g. Solid modeling
The design is an editable 3D model of the product e.g. Parametric modeling
The design is the integrated representation of
all the compositional, analytical and fabrication
representations of the product
(Geometry is just one part of the model) e.g. Product Data Modeling, Building Information Modeling
H
W
D
Parameters:H, W, D
+ Information
Information Modeling
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Autodesk Revit 2016, as of 2015
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How to “model” a building in Autodesk Revit?
Modeling walls, columns, doors, spaces, floors – not points, lines, surfaces
- But it doesn’t mean Revit has no geometry editing tools. It still has powerful tools.
Designing a building object, based on several pre-defined object families
- System Family: pre-defined building objects in Revit
- User Family (Custom Objects): any kind of user-defined building objects
Each object’s geometry is parametrically editable
- A wall’s “width”, “height” and “thickness”, NOT “length” of the lines
All objects have related each other – Parametric “Constraints”
- E.g.: All walls in Level 1 have a “constraint” to the bottom of Level 2
We just implemented this on BIM tools, much smarter than OSNAP in AutoCAD
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Revit interface basics1. Start a command
Clicking icons in Ribbon interface
2. Choose an option from the associated temporary tab
Editing, modifying in an additional Ribbon tab
3. Do something in the model view window
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Add a new project – using Metric template
1 2
3
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Wall object modeling on top of the given CAD drawing
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Door Object: You can add more door objects from the Library
1
2
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Add a double-flush door
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Door Object in Revit – Floor Plan view & 3d view
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Window Object in Revit – Floor Plan view & 3d view
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Modeling a stair in Sketch Mode
Draw a stair run in Sketch mode
Finish it and exit Sketch mode
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Component
In Component Properties: several available interior architectural items
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More Components from internet – e.g. Herman Miller furniturehttp://www.hermanmiller.com/design-resources/3d-models-revit/revit-families-and-typicals/product-categories.html
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Floor Object
Modeling a floor object: also in Sketch mode – draw
boundary lines of floor slab
Must finish it after modeling the floor boundary
lines
Floor slab
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Next week: A bit detailed modeling & entire floors
- Interior Walls- Doors- Windows- Stairs- Components (furniture, etc.)- Spaces (Revit Room objects)
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Smart Copy: copy & paste your objects in a smart way
Copy objects
Smart selection by Filter
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Smart Selection of Objects by “Filter”
Smart selection by Filter
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Smart Copy
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Modeled and Rendered in Revit, using Mental Ray (Also compatible with 3ds MAX)http://oubaas.deviantart.com/art/Revit-render-test-84446464
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http://www.revitcity.com/forum_files/26537_banking_hall_1.jpg
Modeled and Rendered in Revit, using Mental Ray (Also compatible with 3ds MAX)
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Recommended: Use Revit & MAX for better photo-realistic rendering images
Revit:
MAX:
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Rendered by Mental Ray on Revit – Photo-realistic rendering
http://grevity.blogspot.kr/2011/09/beam-me-up-scotty.html
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Rendered by Mental Ray on Revit – Photo-realistic rendering
http://grevity.blogspot.kr/2011/09/beam-me-up-scotty.html
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http://grevity.blogspot.kr/2011/09/beam-me-up-scotty.html
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Back to Geometric Modeling:
Surface-based 3d Modeling by 3ds Max
mostly for Design Visualization
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An Example 3ds MAX Modeling & Representation -
“Geometric Modeling” – no need to be a smart model
Scenario: Workspace design concept developmentusing 3d visualization (3ds MAX)
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3ds MAX use scenario in interior architecture design
Define UoD
Retouching in 2d Graphics Tools
(Geometric) Modeling
Material mapping
Rendering
Lights Camera Rendering scenes
Modeling universe (environment) Modeling design elements
2d sketch 3d modeling
Import Modification…
Planes Walls
Sky, outside view Modification…
What’s in your mind? - Roughly sketch it freehand if needed - Plan hierarchy diagram and objects
Photoshop (or others) supports lots of complicated effects- Modify: Level, Color balance, Sharpness, Gaussian blur, etc.- Add: Remapping, Compose, Texts, etc.
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An Example Concept & Development – “Media Wall Office” visualization
This is a small office for an IT-based design company, a part of a high-rise building
They design Web-based media such as Prezi, Flash, e-contents, etc.
They need to get feedback frequently from users, remotely
Non-structural columns for digital communication! Media Posts!
Columns are connected to the network
They have several built-in touch-pad devices
Designers “post” their design to the Media Posts, and get feedback
Windows are also another type of Media board: Transparent screens
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Reference Images
Blurring Space, JK Lee et al, 2003
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Reference Images
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Stage 1: Modeling architectural environment
1 Create a box object: with enough segments in a proper size, e.g. 12m X 20m X 6m
2 Convert it into “Editable Poly”
3 Delete one side wall
4 Other 3 sides should be “Flip”
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Stage 2: Photometric Lights
1 Create a Photometric light on the ceiling
2 Copy “instances” using Shift + Move icon
3 Adjust light options: Cylindrical emit, Intensity 50cd, set color, etc.
4 Test render inside for seeing inside brightness
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Stage 3: Place a Camera
1 Place a target camera
2 Adjust its location properly
3 Adjust camera options: Focal distance (use wide), Multi-pass effect (depth of field), etc
4 Create a Camera view, test render inside for seeing via camera
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Stage 4: Modeling Interior Elements
1 Create interior elements: create a box and copy instances (Columns)
2 Create interior elements: other elements dependent upon Level of Detail you want
3 Import elements: pre-defined furniture and/or cubicle system furniture, etc Copy instances
4 More lights and/or window modeling (still surface is okay in this LoD)
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Stage 5: Material Mapping and Rendering
1 Assign one view port to the Camera, and toggle views using Alt + W
2 Assign colors into surface walls and interior elements: white
3 Assign preset materials to some of objects: Arch & Design solid glass to the window parts, floor..
4 Test render and adjust related setup: lights, material, camera lens & depth, etc Get your scene
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Basic modeling, lighting, camera, and rendering by Mental RayNo texture mapping
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Modeling – 1 side media windowNo texture mapping
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Modeling – 3 sides media windowWindows: Arch & Design solid glass
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Modeling – a little bit elaborated modelingWindows vertical rails: Arch & Design metal
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Floor material (Arch & Design preset) & external lightsFloor: Arch & Design concrete
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Floor material (Arch & Design preset) & external lights Concept rendering image: Need to retouch in Photoshop – Media images on the posts & screen
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Floor material (Arch & Design preset) & external lights
Concept rendering image: Need to retouch in Photoshop – Media images on the posts & screen
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Media screen mapping 1
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Media screen mapping 2
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Media screen mapping 3
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A concept image of a workspace – this takes around 2 hours for modeling & rendering LINK
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Lab Exercise 00: 3ds Max basic render environment
- Basic render environment file for Mental Ray- Basic render environment file for Vray
Use them for your “precision” modeling & quick rendering preview
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Environment_MentalRay.max
1,000mm
1,000mm
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Lab Exercises 01:
Camera MR Multi-pass effect (+ Caustics)
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Lab Exercise 01
Render a “Crystal Balls” scene in 3ds Max using MR, with Caustics + Multi-pass
Open “Crystal Ball.max” file
- Copy & Paste few more balls: 6-7 crystal balls
- Place a camera
- Turn on Caustics in Render Setup
- Turn on Generate Caustics in Object Property
- Adjust camera options: FOV, focal distance, view angle…
- Turn on MR Multi-pass effect
- Render a scene: Caustics & Multi-pass! Advanced camera effects
Render your final scenes Store under your named folder
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How to enable MR Caustics:
1. Turn on Caustics in GI tab:
Render setup - Indirect Illumination – GI
2. Turn on target objects “Generate Caustics”:
Object right click – object property
3. Turn on lights’ “Generate Caustics”
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Rendering Example
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Lab Exercises 02: Rendering HD images & reducing time
- 3ds Max + Vray using Light cache & Irradiance map- 3ds Max + MR using FG map & GI map
very high resolution images rendering for: Studio finals, Competitions, Graduation work, etc.
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Lab Exercises 02: High Resolution image rendering tip
How to save your time for rendering High Definition (high resolution) images?
1. Render a very low resolution image (e.g. 320 X 180 pixel)
2. Save your calculation files (Global illumination related, light cache…)
3. Load saved calculation files (“From file” option)
4. Render in HD (1920 X 1080 pixel or much bigger e.g. 6000 X 5000 pixel)
Render buckets directly generate the final images without calculation
- In Vray: Save Irradiance map file, light cache… (*.vrmap, *vrlmap, vrpmap…)
- In MR: Save Final Gather(FG) map file, GI map…
Besides, this enables you to render a clean image without color bleed
Render your Vray final scene in HD Store under your named folder
Render your MR final scene in HD Store under your named folder
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Reducing rendering time
Rendering consists of 1) calculation, and 2) image generation
calculation can be saved as a file (map file), and reused by another rendering with high resolution
this only takes image generation time, without long calculation time
At this moment, swapping map file can be applicable for avoiding color bleed, etc.
Avoid too detailed mesh models,
Use good mapping sources,
Do not load unnecessary models behind the scene,
Fix geometric errors, etc.
…And?
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1920 X 1080 pixel image rendering in a couple of minutes, using Mental Ray in 3ds Max
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Low resolution image
Lab Ex 05 – 1: Rendering HD image using Vray & Cache/map files
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High resolution image
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Lab Ex 05 – 2: Rendering HD image using MR FG/GI map files
Low resolution image
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High resolution image
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Reducing “Color Bleeding” using saved map files
Sometimes Color Bleeding hinders rendering good images
It can be controlled by replacing with different map files
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Reducing “Color Bleeding” using saved map files
If needed, use different mapping colors for both:
1) making map file (with non-color bleeding colors), and
2) HD rendering (with any wanted colors)
Low resolution image
for making non-color bleeding map files (white background)
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Lab Exercises 03: Rendering your building model
(Review from the last week Lab Exercises)
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MR Daylight system or Photometric lights
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Architectural rendering (no need to be photo-realistic)
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Architectural rendering (no need to be photo-realistic)
Submission: render scene
like these
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Lab Exercises 04:
- Make your Office: (Pseudo) 3D Building Model
- Refer to the slides today (media wall office case)
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Stage 1: Modeling architectural environment
1 Create a box object: with enough segments in a proper size, e.g. 12m X 20m X 6m
2 Convert it into “Editable Poly”
3 Delete one side wall
4 Other 3 sides should be “Flip”
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Stage 2: Photometric Lights
1 Create a Photometric light on the ceiling
2 Copy “instances” using Shift + Move icon
3 Adjust light options: Cylindrical emit, Intensity 50cd, set color, etc.
4 Test render inside for seeing inside brightness
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Stage 3: Place a Camera
1 Place a target camera
2 Adjust its location properly
3 Adjust camera options: Focal distance (use wide), Multi-pass effect (depth of field), etc
4 Create a Camera view, test render inside for seeing via camera
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Stage 4: Modeling Interior Elements
1 Create interior elements: create a box and copy instances (Columns)
2 Create interior elements: other elements dependent upon Level of Detail you want
3 Import elements: pre-defined furniture and/or cubicle system furniture, etc Copy instances
4 More lights and/or window modeling (still surface is okay in this LoD)
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Stage 5: Material Mapping and Rendering
1 Assign one view port to the Camera, and toggle views using Alt + W
2 Assign colors into surface walls and interior elements: white
3 Assign preset materials to some of objects: Arch & Design solid glass to the window parts, floor..
4 Test render and adjust related setup: lights, material, camera lens & depth, etc Get your scene
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Media screen mapping 3
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Next Class
Geometric Modeling & Modification Technique in 3ds Max
3ds Max Design + Mental Ray Technique
Architectural Modeling by AutoCAD dwg files