Drawing shadows along with objects gives an illustration some amount of reality. I was trying to illustrate shadows and felt like sharing some thoughts that I had. Probably a beginner may find it interesting. Anyways here it is...
To draw a shadow, one needs to be clear about properties of three things:
1) source of light (position, brightness, size)
2) the subject itself which casts the shadow (position, shape & size)
3) the surface on which shadow falls (position, shape & size)
Now how do these properties affect the shadow cast by the subject... ?
These two videos give you a basic idea of how shadow can be drawn and how the properties affect them. A must see... How to draw shadows and Drawing perspective shadows.
Some points to be noted are:
Size of shadow depends on distance between the source of light, object and surface of shadow. The size of the shadow increases as the distance between source of light and object decreases.
The shadow appears blurred if either there are many sources of light or if it is far from the subject.
The position(angle) of the source of light decides in which direction the shadow is cast.
The shape of shadow is also defined by the surface on which shadow is cast. shadow is irregular on irregular surfaces.
The 3 dimensional subject is cast as a two dimensional shadow whose shape is defined by the relative position of subject and source. For example see what objects can cast a square shadow and what shadows a cube can cast ... That would give you an idea.
After getting basic idea about shadow, the next point is how do we illustrate a shadow in Inkscape.
The basic method is duplicate the subject to create the shadow, give it a grey color and decrease its opacity. Then do the transforms like skew, stretch and move. What transforms and how much you need to perform depend on the properties of source of light,subject and surface that you saw earlier.
For 2D image editing softwares, the above idea can give good results for flat or simple sjubects. When the subject is a 2D illustration of a complex 3D object some amout of imagination and manual editing of the nodes of shadows is necessary.
Here is a small how to for illustrating shadow for a human figure. You can apply the technique for other objects also.
1) Draw ellipses using ellipses tool, rotate and arrange them as above to get a human form.
2) To draw the shadow, duplicate the subject (select subject and press ctrl+d)
select all the ellipses and do a path->union.
give it a grey (888888ff) color fill and 75% opacity.
3) Group the ellipses of subject (Ctrl+g)
For time being, place the shadow object above the subject.
Align(ctrl+shift+a, center along vertical, center along horizontal axes) them both so that they overlap each other completely.
4) Angle of source of light:
Click on the shadow layer twice, you will see the handle for skew operation.
Play with the skew operation holding shift key. This will give the angle at which the shadow is formed.
Depending on the position of source of light you can settle for a shadow.
5) Elevation of source of light
Now click on the shadow object once, you can see the squeeze or stretch handle.
play with this handle. this gives the elevation or the height of the source of light.
settle for required elevation.
So now we have a shadow of the object on a flat surface(floor).
What if there is a wall some distance behind the man, would the shadow be the same ?
lets see how to illustrate that.
A) Select the shadow and the wall surface and duplicate them.
Tthen do a path-->intersection. give this new shadow object the same fill and opacity as that of the shadow.
Send the old shadow to bottom (select shadow and press end key)
We need to do a skew to the new shadow as we did earlier for angle of shadow, this time the shadow must be vertical as below.
B) The shadow that you got is not a perfect one, we need to do the stretch operation.
Decrease the opacity of the wall so that you can see the old shadow.
Draw a reference line from the old shadow to the man's head.
Now stretch the new shadow as we had done earlier until it touches the reference line.
Now reset the opacity of wall and delete the reference line.
The final result
Applying the same technique you can illustrate shadows on complex surfaces. Here is an example of shadow on steps.
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Rockraikar
Welcome, Here I'll write about anything that I do or find about visual art, design, etc. I'm not a professional artist but just a hobbyist. Inkscape & Gimp are my tools and you know why... because its free. Hope you enjoy the posts & creations. Now that I have my own domain name, have moved the blog from the blogspot domain http://art.vinayraikar.com.
Welcome, Here I'll write about anything that I do or find about visual art, design, etc. I'm not a professional artist but just a hobbyist. Inkscape & Gimp are my tools and you know why... because its free. Hope you enjoy the posts & creations. Now that I have my own domain name, have moved the blog from the blogspot domain http://art.vinayraikar.com.
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و منقولات فى مصر، أعلى ونش هيدروليكي فى مصر ليصل الى الادوار الشاهقة باستخدام اعلي الاوناش بالعالم “ونش بوكر”، حيث يمكنك الإعتماد على ونش رفع العفش فى رفع أو تنزيل منقولات بيتك، مكتبك أو بضاعتك إلى الأدوار العاليا, وفى و نقل الاثاث ، “بدون اجهاد و مع متخصصين”، حيث لدينا فريق متخصص مدرب علي اعلي مستوي للتعامل مع كل منقولاتك مع الحذر في نقل كل مقتنياتك مجهزة للنقل والادوات والالات الخاص بالتفريغ والتغليف من المنزلك او مكتبك القديم الي الجديد ونضمن لك عدم الاجهاد بنسبة 100٪
ادخل بياناتك واطلب الخدمة من خلال موقعنا اضغط هنا
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كما يسرنا ان نكشف الستار عن خدمة صيانة كليفينتور و التي تتم بإستخدام قطع غيار كليفينيتور الاصلية و المعتمدة
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Let’s start with the location of this project because it is the aspect that most interests each investor. Girja Road hosts the Silver City housing society. This project is close to every facility in the area and highways and routes. The Thalian Interchange is of great importance alone, but the New Proposed Rawalpindi Ring Road, which ends at this interchange, makes it more special. Thalian Interchange is just 4 kilometers away from the Silver City housing scheme Islamabad. It would make this housing society more accessible to visitors from Lahore and help residents of the project to go to the airport quickly. On the other hand, the Silver City location will be one of the direct beneficiaries of Rawalpindi Ring Road.
Silver city housing scheme is is NOC Approved
The Silver City housing scheme developers and owners worked tirelessly for a long time to have the NOC authorized. Silver City housing society is now an RDA-approved project. Final clearance for over 241.14 Kanal of land has been granted. The Silver City housing scheme developers and owners are working towards getting more of their property authorized. For more details click : silver city housing scheme
Read more articles are as follow:
The Masters Real Estate
Lahore Smart City
Capital Smart City
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