Cochesaurus Playground

Dessins, peintures, infographies, animation et pensées

Cochesaurus Playground

21 avril 2010

Henry the Tiger


I'm sorry because, I've not been able to write that often here in my blog, besides I'm not that creative to write new things and tutorials that often, but that is another story :)

Let me tell you a little bit, of how I've been doing in the last months...Finally I ended one big project that was assigned to me in my job, and so far I learned a lot of things related to training course design, including: recording audio, recording videos, and what I like the most... preparing custom graphics for the courses. At the end, I think the courses were fairly well :) It's worth mentioning that I used mostly open source technologies like Audacity, Avidemux, Blender, GIMP, and Inkscape. The tips I learned I will try to post them here, so you can learn a little bit too.

Ok, lets go with the main topic of this post, the latest of my characters... Henry the Tiger!!

First like all of my characters, I started to draw him in a piece of paper (sketch pad) using my favorite blue pencils (HB, 2B, and 5B). Here is my first attempt: (FIGURE 1)

FIGURE 1  My first attempt of Henry.

By the way for inspiration purposes I used a photography of a teenager rock singer to help me draw Henry, and because of that I think my first attempt was too realistic, its like a guy wearing a tiger's costume.

I decided to try again and give Henry a more cartoonish look. I also tried to make the original drawing more simple, just in case one day I animate him. So my second and last attempt its like this: (FIGURE 2)
FIGURE 2  The latest version of Henry.

Ok, so far this is not different of what I've done in the past, except that my drawings now have more contrast (thanks to Rore). So I decided to try something different and paint my character using GIMP!! (FIGURE 3)

Henry the Tiger

FIGURE 3  Henry the Tiger at full color :)

So far I liked a lot the experience of fully painting a character using GIMP, is not without trouble, because drawing and painting with the mouse is a pain (hopefully one day I'll have a Wacom tablet :) but I enjoyed very much. Let me share some tips of how I painted Henry:

  • I started scanning my drawing (well, really I just took a pic, because I don't have a scanner) and then I imported the JPEG into GIMP.
  • I used a lot of layers. At first I don't think I'll use that much layers, but as I advanced in the painting, I realized that using layers will help me in the long term, e.g. I painted the arm skin in one layer, then the stroke of the arm in another layer, and finally maybe the tiger's stripes in another layer :)
  • I used layer modes (blending modes) to add the shading, and the highlights. I found particularly useful the Multiply, Subtract, and Screen layer modes. Using layer modes also helps to paint without worrying about painting outside the stroke or contour of the shape.
  • Brown color (or sienna), just like in real painting can be very useful to achieve shadings and mixing colors (see previous item)
  • I used some cool brushes (see

It's not over yet... :D  like I promised in my previous post, here are my first set of brushes, I hope you like it and find them useful.

Coche's Brushes (compressed with 7-Zip)

Posté par coche à 03:15 - Infographies - Commentaires [0] - Permalien [#]

24 janvier 2010

Time to share!

Hi guys and maybe some girl out there :)

Like some people know, I work in an airline, particularly in the training department creating stuff for maintenance technicians. In the last course that I helped to create that is about "Repair Stations" (if the title looks scary, the content of the manual is more scary). In a way to help to avoid pain to maintenance technicians that study the course, I created some pictures and stuff for the course, and one of the things I did are these tools, and this time I would like to share it with you, I hope you find them useful.

Repair Tools

Inkscape source file:repair_tools

I started to use this license thing, and is as follows: Creative Commons License
This work is licensed under a Creative Commons Attribution-Share Alike 3.0 United States License.

Don't worry about this license thing, it provides a lot of freedom for you to use this work in any way you want

* In the next post I will share my first "GIMP brushes"

** If anybody knows how this tools are called in English (or French :) I would appreciate if you can tell me in the comments. I only know how they are called in Spanish (Desarmador y Llaves)

Posté par coche à 06:14 - Infographies - Commentaires [1] - Permalien [#]

08 décembre 2009

Highlight Zone

Hi, how are you? I hope you are fine, and if you've been visiting my blog looking for some nice and easy tutorial and don't found any new tutorials, I'm sorry because I've not written in a while. I promise I will try to write more often :)

OK lets start...

It would be nice if you and me had an personal aircraft, don't you think so? just like famous rock bands like Iron Maiden. Lets dream a little and imagine... if you would have an aircraft you've probably were the pilot of the aircraft (although, that requires a lot of study and practice), you can fly everywhere you want and you can decorate and paint your aircraft with the colors, shapes, logos, and embellishments that you like the most. Dream just like Open Source Software is free after all :)

So for this tutorial I've drawn my personal aircraft and the name of my airline is "Cochesaurus Airlines", cool name huh. (FIGURE 1) (actually I've just modified an aircraft drawing that I did for the company that employs me).

Cochesaurus Airlines

FIGURE 1  Cochesaurus Airlines - first aircraft.

Now that we have our aircraft drawing, suppose that we want to highlight a zone, maybe for identifying the location of a component, or perhaps a "bump" after our first flight (since we are learning to fly, maybe a bird hit our fuselage). Create a new layer (transparent) and pick the Ellipse tool and draw a circle on the desired location of your drawing. Keep the selection (keep the ants running) and prepare a nice color for your highlight (I prepared a nice green), using the foreground/background colors in your toolbar. Drag the new color from the toolbar to the selection. (FIGURE 2)


FIGURE 2  Drag the color to your existing selection.

Keep the "ants running" and go to menu Select > Shrink. In the dialog select 2 px. Now hit delete to erase the color (after this step you will get a "green ring"). Add a new layer and drag the same green color from the toolbar to the current selection in the new layer. Change the opacity to 40 for the new layer. Now stop the ants (go to menu Select > None). Select the top layer (which haves the semi-opaque green), right click it and select Merge Down, now our highlight zone is in only one layer. (FIGURE 3)


FIGURE 3  Our semi-opaque circle (the stroke is opaque and the fill is semi-transparent).

Rename the layer which contains the highlight to "highlight" and go to the menu Layer > Autocrop layer. Now comes the cool trick... Keep the highlight layer selected and go to the menu Filters > Distorts > Erase every other row. (FIGURE 4)


FIGURE 4  Erase every other row gives a nice touch to our highlight zone.

Erase every other row gives a nice effect itself, but maybe the color needs to be enhanced a little bit, so duplicate the highlight layer and change the layer mode to "Grain merge" for this layer. (FIGURE 5)


FIGURE 5  Enhance the colors using a duplicate of the original highlight layer.

And just like Michael Jackson, this is it. I hope you've enjoyed the tutorial, check the final image below. (FIGURE 6)


FIGURE 6  Our green highlight zone is complete!

* The aircraft showed in the picture is a "Embraer 190" a nice aircraft manufactured in Brazil.

** The highlighted zone is where the "Fueling Panel" is located in the aircraft.

Posté par coche à 04:08 - Infographies - Commentaires [0] - Permalien [#]

08 août 2009

Painful Source of Inspiration part 2: Greeting Cards with Stylized Smoke


I'm having some troubles writing to this place, my blog, but I hope I can continue to share my thoughts and tips with you for a long time.

Ok, so in a previous post I said that I 'll write about my not so well experience with a girl and here I go...

I think most of the things are said in the previous post, only the conclusion and what I learned remains. I want to start with the following quote:

"Why so serious?"

-The Joker (from the movie The Dark Knight)

The following quote can explain this better:

"The most important thing to remember is to always remain calm, confident, and playful about the whole thing. This is a stranger, not your longtime girlfriend. Don’t treat her like she’s the only thing in the world that will make you happy…you don’t even know if she’ll make you a little bit happy at this point. You’re just making an earnest effort to get to know someone new."

-Zack Taylor (from the nice web site "Dating and Thoughts")

And that is what happened to me, I get so serious too soon and I forgot to have fun. I think the opposite is true, first don't forget to have fun, later if the things work out, then you can get serious.

Ok, let the tutorial begins!!

This time we'll do another nice and easy to do greeting card.

First, grab a nice picture that you think your friend will like. I chose a nice picture of McWolf from the Tex Avery classic cartoons. (FIGURE 1)


FIGURE 1  A cool character...Tex Avery's McWolf.

Now is time to modify the original picture, I did a soup bowl in Inkscape and then I imported it in my GIMP file. (FIGURE 2)


FIGURE 2  My soup bowl!

After this add the text balloon that will contain the special message for your friend. To draw the text balloon, use the Ellipse Select Tool to draw the initial shape, and then with a solid circle brush draw some strokes in the contour of the shape. To complete the text balloon, add some circles in diminution targeting the mouth or head of the character. (FIGURE 3)


FIGURE 3  The text balloon.

When you've completed the text balloon, its time to add the text using the Text Tool. (FIGURE 4)


FIGURE 4  Adding the text.

Now it comes the cool part of the tutorial... adding some stylized smoke to the soup, just to make it more delicious! And is really easy, just grab the Airbrush Tool and choose a Circle Fuzzy brush with a convenient size, I chose Circle Fuzzy (13). Then set the Brush Dynamics, check the size option under the Random category and draw some strokes to make your smoke. (FIGURE 5)


FIGURE 5  Our nice smoke makes the soup more delicious!

Lets see the final result: (FIGURE 6)


FIGURE 6  Our final greeting card.

And that's it, cool and easy tutorial huh.

See ya soon.

* by the way, the soup that appears in the picture is a traditional soup from my country called "Sopa de Pata" or Soup of Legs, is a delicious soup made from cow's legs, maybe it sounds not so appetizing but is really delicious!

Posté par coche à 11:19 - Infographies - Commentaires [0] - Permalien [#]

29 juin 2009


I think I will post later, the second part of my Painful Source of Inspiration series, because I need to re-organize the order of events and my thoughts about that :D

Ok, let me share with you some tips about this chalkboard that I did some weeks ago. (FIGURE 1)


FIGURE 1  Teacher's day chalkboard.

Initially I made this chalkboard to put it in the home page of the Moodle LMS that we use in my job, but like many times have occurred to me in the past :( I was told to remove the chalkboard from the home page. So I decided to store it. A couple of weeks later a friend asked me for help, because the teacher's day was almost there, and we used my chalkboard to decorate their offices and also mine. The final result was very cool and nice! many balloons also added the special touch to the decoration!!

Let's talk about the tips...

  • Chalkboard frame. I used a wood texture to make the frame, I rotated the texture to make the vertical and horizontal pieces of the frame.

  • Chalkboard. The idea was to make appear the chalkboard like the ones you can find in schools, were although the teacher erases it, still you can see some white patches and spots, and more when the time passes and you erase it many times. I used the cool pastel brushes of centipede to achieve that school feel :)

  • Aircraft drawings. I used some drawings that I did in Inkscape, then I imported them into GIMP and applied the "Dissolve" layer mode.

  • Chalkboard text. I used a chalkboard font called "Eraser Dust".

And that's it, I hope this could be useful to somebody.

Thanks for reading.

* The friend that asked me for help, was a girl :) you've probably guessed because girls like to decorate things, men usually not

** by the way, the Teacher's day is June 22, here in El Salvador

Posté par coche à 03:58 - Infographies - Commentaires [0] - Permalien [#]