Progress with Blender

This is an update on how I’m getting on with Blender. I spent some time reading and viewing tutorials about the Blender interface, and it is unusual in many way. There are dozens and dozens of menus, panel, screens, and many of the buttons are small on my not-so-big screen (see above). That’s not so good for my ageing eyes.

I decided to try some of the tutorials on how to build a simple house, and eventually I ended up with above. A grey house on a grey background in Blender’s 3D view window. I then tried to recreate the above without looking at the tutorial, but before I get into that, I’m going to mention “rendering”.

Rendering is the name of the process for converting the 3D model, whatever it is, into a image that can be used on the web, or as input for further processing using a different program such as the GIMP. It is during this stage that colours and textures get applied. Below is the image resulting from the rendering of the model above. I didn’t do any colouring or apply any textures so it still looks very grey.

As I said I now attempted to draw the house from scratch, not using the tutorial. It took me some time, but eventually I managed to create the model below.

As you can see, I forgot to create the eaves, but apart from that I managed to recreate something like the tutorial model. I should have planned the house properly before I started it. I could correct it in Blender, but it is easier, with such a simple model, to start again.

I’d read or watched a tutorial where materials were applied to a model to, among other things, apply colour to the scene. “Scene” in blender means a single model that can be worked on, such as the houses, backgrounds and lighting in the models above. I decided to render my house, and to colour it in the process, and ended up with the following image. The green area that the house stands on is an object in the scene that I created and coloured, a large flat “mesh”. In Blender your work sort of floats in space, although there is something called “Physics” that I haven’t investigated yet, that may change that.

I continued to familiarise myself with the Blender interface by playing around with house models, and then I decided to try to recreate my UFO from the GIMP in blender. Here it is, in Blender. Unfortunately, the image is quite small.

And here’s a rendered view. I coloured it black and white, so it doesn’t look too impressive and the light levels are a bit low.

I restarted building the UFO, and here’s a screenshot of the second version. This time it should be more visible. It’s view of the mesh that creates the shape of the UFO. Its skeleton, if you like.

And finally for this post, here’s a rendered image of the UFO. AS you can see, it’s a bit chunky, but I’ll be investigating how to smooth it out.

I’m deliberately not going into detail on how I built these images, since they only use the really basic tools, (the UFO is just a squashed sphere for example), and there are many good Blender tutorials on the Internet. If I find some process or facility that I find interesting, I might go into detail, and when I start building a full image, I may post the various steps that got me to the end result.

Please read my books. The paperback versions can be found Amazon, and the eBooks can be found there or at your favourite eBook store. I mainly write fantasy fiction.

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On Learning Blender

I’ve been using the GIMP recently to draw some things, and I’ve discovered that there are some things that it can’t do easily. Specifically, I want to draw a three dimensional scene, and that requires textures and other images to wrap around objects in the main image. Like, for example, the label on a can of beans. While this is possible in the GIMP, I’ve not been able to produce really convincing wrapped objects in the GIMP. This is almost certainly my fault and not the program’s fault, of course.

Anyway, I started looking at alternatives, of which there are many. Few of them are free, but one of the best, according to my research, is Blender.

The GIMP doesn’t pretend to be a painting program. It is as its name says, an Image Manipulation Program. (The G stands for “GNU”, which I will not explain. I will refer you to Wikipedia instead.) So, it’s main purpose is to take an image, perhaps a photograph, remove any blemishes, any unwanted photo-bombers, and apply effects and merge images to form composite images.

One task that can be achieved pretty easily in the GIMP is creating text strings and positioning them on top of images. That is great for creating book covers, for example, and I’ve created a few using the GIMP. It is great for two dimensional tasks, but is not designed for building things in three dimensions.

A book cover created using the GIMP

A book cover created using the GIMP.

Blender, on the other hand, is designed for creating three dimensional images. You can even fly or walk around them. A cube looks like a cube, a sphere appears spherical. You can see an example of the layout of the Blender screen at the head of this post. Unfortunately, reducing the Blender screen to this size makes it almost unreadable, but the cube can easily be seen.

So, Blender. I decided to try to learn Blender with the aim of creating images of three dimensional objects and “painting” them with two dimensional images to produce the effects that I wanted. I could then “render” them in Blender to produce images of the objects that I wanted, and then I could import them into the GIMP.

Blender is complex! Even the methods of navigating around the work area needed hard work to get my head around, and actually creating anything more than a simple primitive object such as a cone or a cube is hard.

If you go to YouTube and search for tutorials on Blender you will find literally dozens of them. I came across a series of basic tutorials which numbered forty one. If you perform an Internet search, there are thousands of Blender tutorials. It’s a very complex program.

It also has a quirky and very complex interface. For example, it doesn’t prompt you to save your work on exit, like many other programs, but if you forget to save, it has a way to recover your work from the previous session. This infuriates many people, and a search through the arguments for and against this feature can be entertaining.

Another quirk is that the “select” function is driven by a mouse right button click rather than the more usual left button click. This feature at least can be switched off if the user wishes.

Blender is most easily “driven” using hot keys, though the menus are there. There are so many hot keys and combinations of keys, that they are hard to remember. What does pressing Shift plus Ctrl plus the letter L do, for example? I don’t know, but it is probably something useful.

Anyway, I’m going to try to learn it, and I probably post some of my experiences with it here. So long, I’m off to read a 1900+ page PDF on Blender. It’s a beginner’s guide!

Please read my books. The paperback versions can be found Amazon, and the eBooks can be found there or at your favourite eBook store. I mainly write fantasy fiction.

 

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A UFO drawn in the GIMP

I’ve been playing around with the GIMP recently, drawing stuff, rather than editing or touching up photos. I decided to try to draw a small UFO, and the following post shows how I did it. There’s almost certainly better ways to do it, but I’m no Gimp guru!

[For those who don’t know, the GIMP is a free image processing program available for Windows, Linux and Mac, which has similar abilities to Adobe Photoshop.]

My main idea was to create the UFO as a rectangular image, and then to use the “Map Object” filter that comes with the GIMP to wrap this image around a sphere. So, first I created a rectangular image, four to five times as wide as it was high.

I wanted to have two chains of windows encircling the UFO, so the next step was to create a small layer for a single window. There are many ways to create a new layer, and I’m not going to go into details of all the methods. Please read the Gimp documentation if you want to know more.

One way is to open the Layers dialog either through the “Windows” menu or simply by hitting Ctrl + L, and using the small button at the bottom to create the new layer. I recommend right clicking the new Layer and giving it a name through the “Edit Layer Attributes…” option.

Anyway, having created a new layer, I selected a small rectangular area on it, and filled it with the foreground colour, black, then I used the “Select” menu “Grow…” option to grow it by 10 pixels all round. Here’s what I had at this stage. Note the Layers dialog on the right. I always keep the Layers dialog open as it is so useful!

OK, that’s a little hard to read, I know. The important bit is the bit in the middle, the black square surrounded by a white border, the current selection. I selected “Crop to Selection” on the Layer menu to shrink the Layer to the smallest size needed.

The next stage was to create more window layers with a window in each, so I just clicked the small copy button in the middle of the bottom of the Layers dialog about ten times, with no visible change to the image. This is because all the new layers get created right on top of one another! However, all the layers are listed in the Layers dialog on the right of the screen.

I then used the Move tool to move the new layers to different positions on the screen. I made sure that I’d spread them all out. See below.

As you can see, they are not exactly aligned and spaced, so that was my next task, using the alignment tool. I wanted this middle row to to be evenly spread along the mid line of the image, so in the alignment tool properties dialog I selected “Relative to     Active layer”. Then I selected all the layers on the middle line, and finally selected the Background layer. I selected the button to align the layers on the mid line of the image (the lower middle of the six buttons in the “Align” section) then I selected the button to distribute the layers evenly across the image (the one on the right of the first row of the “Distribution” section). Now the image looked like this :

So now I needed to make the second line of windows, just about the first line. So I created a further eight windows by repeatedly copying one of the lower windows, then I spread them out slightly above the other line.

Then using the alignment tool, I selected all the windows in the new line. I changed the “Relative to” value using the drop down menu to “First Item”, then aligned the windows to the first one by using the middle button in the second row of the “Align” section. The reason I aligned the windows to the first window rather than active layer is because otherwise the windows would simply overlay the first set.

Now I needed to space out the windows, so, leaving them selected, I changed the “Relative to” value back to “Active Layer”, then used the right most button on the first row of the “Distribute” section to spread the windows evenly along the line. They now matched the first line, as shown below.

At this stage I saved the image to disk, in case of accidents. The GIMP lets you undo the steps that you have taken in editing or creating an image, but sometimes (especially if you are experimenting), it is useful be able to abandon all your fiddling and start again from a known good image. However, saving an image means that you can’t backtrack from that version of the image.

Now I needed to apply the filter, but the filter appears to only work on a single layer of an image, so I flattened the image to a single layer (using the Image menu), and applied the Map Object filter to the resulting image (Filter->Map->Map Object…). I changed the lighting to make it appear that the lighting was coming from above and to the right and I also adjusted the orientation a little so that viewpoint was slightly below the UFO, as if it was flying overhead. These are options in the filter. I clicked OK and got the following result.

And that is it. It’s a simple enough image, but good enough for my purposes, and it shows a number of simple GIMP techniques. To create the image at the top of the post I merely hid the background layer and filled the areas around the UFO with sky blue. I hope that this post will be useful to someone.  Obviously there is a lot of scope to improve the image, perhaps by adding doors to the lower part, landing legs and so on, but it will do me for now.

Acknowledgement : Much of the stuff on the usage of the Alignment Tool was gleaned from this article. Many thanks to the author, Debi Dallo.

Please read my books. The paperback versions can be found Amazon, and the eBooks can be found there or at your favourite eBook store. I mainly write fantasy fiction.

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My Books in eBook form, half price.

OLYMPUS DIGITAL CAMERA

I publish my eBooks through Smashwords and Amazon, so that I get the highest visibility for them. Smashwords has a “New Year” promotion, starting Christmas Day and extending through to New Years Day. During this period, my eBooks will be available through Smashwords at half price.

My paperback versions of “The Last Beautiful Woman” and “The Mage and The Boffin” parts one and two are available on Amazon only.

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The Mage and The Boffin : Part Two

I’ve published the second part of my series, “The Mage and The Boffin” in paperback. It can be found on Amazon, here. This complete the collection of current stories about the Mage and the Boffin, but I’ve a few more buzzing about in my head. Please keep an eye out for a possible “Part Three”!

[Here’s the link for The Mage and The Boffin : Part One – The Early Stories.]

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The Mage and The Boffin in paperback

I’ve published some of Mage and Boffin stories in paperback on Amazon. I discovered that if I’d included them all, the paperback would be too long, so this is the first of two parts! The second part might make it onto Amazon by Christmas, but failing that, watch for an update in the New Year!

The details are as follows:

The Mage and the Boffin – Part One: The Early Stories (Paperback)
ASIN : 0473461900
Link : https://www.amazon.com/gp/product/0473461900

 

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My Books on Amazon

I’ve found that it is not easy to find my books Amazon. Simply searching for my name as author might find them, and it might not. Below I’ve listed my books and the Amazon ASIN numbers. I’ve also included a direct link to my books using the ASIN numbers.

[Update: My books on Amazon can be found a lot easier on my Author’s Page.]

If you use the links below and still have problems please leave me feedback and I will see what I can do to advise you. In particular, you may get a message like this : “This title is not currently available for purchase”. The message may be caused by technical issues at http://www.amazon.com.

The Last Beautiful Woman (Kindle)
ASIN : B07G6V3YZS
Link : https://www.amazon.com/gp/product/B07G6V3YZS

The Last Beautiful Woman (Paperback)
ASIN : 0473448858
Link : https://www.amazon.com/gp/product/0473448858

How I Wrote and Self Published My First Book (Kindle)
ASIN : B07GB6GZ3N
Link : https://www.amazon.com/gp/product/B07GB6GZ3N

The Mage and The Boffin (Kindle)
ASIN : B07JLG1YV5
Link : https://www.amazon.com/gp/product/B07JLG1YV5

 

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