3DTotal
Well-Known Member
داشتم توی اینترنت چرخ می زدم یک دفعه مطلب زیر را دیدم گفتم بعد نیست اینجا هم معرفی کنم ؟
لینک که در زیر معرفی کردم مطالبی در مورد چگونگی ایجاد نورپردازی و ایجاد محیط واقعی در جهان سه بعدی است .
من ادامه مطالب را به زبان اصلی می زارم تا دوستان خودشان بیشتر متوجه قضیه بشوند :
لینک که در زیر معرفی کردم مطالبی در مورد چگونگی ایجاد نورپردازی و ایجاد محیط واقعی در جهان سه بعدی است .
من ادامه مطالب را به زبان اصلی می زارم تا دوستان خودشان بیشتر متوجه قضیه بشوند :
3D World’s question of the month
This question relates to one of the fundamental challenges of VFX lighting: integrating a CG object directly within a real-world backplate. In this Q&A, we will explore the process of collecting data on a live shoot – in this case, of an underground car park – then using this data to reconstruct the environment in 3D and to light a model of a virtual object (a giant mech robot) so that it matches the real location exactly. The walkthrough assumes that you are already familiar with 3ds Max and basic visual effects concepts.
Not all of the considerations discussed here – such as whether the environment is interior or exterior, or whether it’s day or night – will apply to your own shoots. The basic rules, however, always hold true: scout the location during daylight hours; take as many measurements as you can; and call in as many people as possible to help out. The key task during scouting is to note down the positions of lights and objects in the environment in relation to one another, and determine if there will be any problems later on. If this is the first time you have done this, don’t bite off more than you can chew. Try to avoid having a lot of things in shot that you will only have to mask out later on; and stick to open spaces, so you won’t have to deal with a lot of objects receiving shadows from your CG model.
If you can, visit the location at the appropriate time of day beforehand, so you can see if there are any contributing factors – such as drunks or joyriders – that will make your life more difficult when it comes to shooting. On the day, you really want to get in, do the shoot right first time within controlled conditions and get out.
The next step is to bring all of the information you’ve recorded into 3ds Max. If you’ve taken down decent notes, you should be able to recreate a basic to-scale replica of the real environment that your CG object can interact with. You will then be able to position your CG camera in exactly the right place, set up virtual lights to match the real ones, and drop in your CG model at the correct location. Easy, eh? Let’s give it a go…
Download Support file :
http://rapidshare.com/files/17172916/3dw83qa_lead.zip
Click here to download the tutorial for free
http://rapidshare.com/files/17172879/TDW83_qa_lead.pdf
This question relates to one of the fundamental challenges of VFX lighting: integrating a CG object directly within a real-world backplate. In this Q&A, we will explore the process of collecting data on a live shoot – in this case, of an underground car park – then using this data to reconstruct the environment in 3D and to light a model of a virtual object (a giant mech robot) so that it matches the real location exactly. The walkthrough assumes that you are already familiar with 3ds Max and basic visual effects concepts.
Not all of the considerations discussed here – such as whether the environment is interior or exterior, or whether it’s day or night – will apply to your own shoots. The basic rules, however, always hold true: scout the location during daylight hours; take as many measurements as you can; and call in as many people as possible to help out. The key task during scouting is to note down the positions of lights and objects in the environment in relation to one another, and determine if there will be any problems later on. If this is the first time you have done this, don’t bite off more than you can chew. Try to avoid having a lot of things in shot that you will only have to mask out later on; and stick to open spaces, so you won’t have to deal with a lot of objects receiving shadows from your CG model.
If you can, visit the location at the appropriate time of day beforehand, so you can see if there are any contributing factors – such as drunks or joyriders – that will make your life more difficult when it comes to shooting. On the day, you really want to get in, do the shoot right first time within controlled conditions and get out.
The next step is to bring all of the information you’ve recorded into 3ds Max. If you’ve taken down decent notes, you should be able to recreate a basic to-scale replica of the real environment that your CG object can interact with. You will then be able to position your CG camera in exactly the right place, set up virtual lights to match the real ones, and drop in your CG model at the correct location. Easy, eh? Let’s give it a go…
Download Support file :
http://rapidshare.com/files/17172916/3dw83qa_lead.zip
Click here to download the tutorial for free
http://rapidshare.com/files/17172879/TDW83_qa_lead.pdf
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