OpenGL example texture a cube - Skin Investigation

OpenGL example texture a cube

Android Lesson Four: Introducing Basic Texturing

This is the fourth tutorial in our Android series. In this lesson, we’re going to add to what we learned in lesson three and learn how to add texturing.We’ll look at how to read an image from the application resources, load this image into OpenGL ES, and display it on the screen.

Follow along with me and you’ll understand basic texturing in no time flat!

The basics of texturing

The art of texture mapping (along with lighting) is one of the most important parts of building up a realistic-looking 3D world. Without texture mapping, everything is smoothly shaded and looks quite artificial, like an old console game from the 90s.

The first games to start heavily using textures, such as Doom and Duke Nukem 3D, were able to greatly enhance the realism of the gameplay through the added visual impact — these were games that could start to truly scare us if played at night in the dark.

Per fragment lighting; centered between four vertices of a square.Here’s a look at a scene, without and with texturing:

In the image on the left, the scene is lit with per-pixel lighting and colored. Otherwise the scene appears very smooth. There are not many places in real-life where we would walk into a room full of smooth-shaded objects like this cube.In the image on the right, the same scene has now also been textured. The ambient lighting has also been increased because the use of textures darkens the overall scene, so this was done so you could also see the effects of texturing on the side cubes. The cubes have the same number of polygons as before, but they appear a lot more detailed with the new texture.

For those who are curious, the texture source is from .

Texture coordinates

In OpenGL, texture coordinates are sometimes referred to in coordinates (s, t) instead of (x, y). (s, t) represents a texel on the texture, which is then mapped to the polygon. Another thing to note is that these texture coordinates are like other OpenGL coordinates: The t (or y) axis is pointing upwards, so that values get higher the higher you go.

In most computer images, the y axis is pointing downwards. This means that the top-left most corner of the image is (0, 0), and the y values increase the lower you go.In other words, the y-axis is flipped between OpenGL’s coordinate system and most computer images, and this is something you need to take into account.

More about OpenGL example texture a cube

Solder resist

by uoip

Basically, the surface tension of the molten solder will make it cling to hot metal. It will avoid areas with solder resist. Actually, it won't stick well to PCB material even if the PCB material isn't covered in solder resist, but the solder resist is especially good at resisting heat and repelling solder.
If you use too much solder, you might accidentally create a temporary solder bridge, but that's easy enough to clean up and fix with a little bit of solder wick.
See this video. It shows soldering of fairly fine-pitch surface mount devices.

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Help find drawing tutorials?

I need tutorials on drawing Semes,Ukes,Dresses,and backgrounds

those four are the hardest to find... preferably printable but ebooks and videos are fine as well


Ukes :
-- drawing tips & tutorials as well as fashion templates.
You could also try this template collection website - :
some of these help. If you browse through the pages/links, look for more advanced &/or diversified or related links& ads listed there.

Have fun :-)

Well that's.. that's me!
..Anime drawing tutorials?

Do you know of any good websites that have drawing tutorials? I am looking mainly for ones that show you how to draw people eg. facial details, limb positioning, hair, clothes etc. maybe in kind of an anime style, but I wouldn't mind other styles either. Thanks in advance! (^_^)

Okay, so here are the websites:

are websites that teach you by videos:

Manga eyes (female):

eyes (male): hair: hand: Manga: background: you want to watch more or how to draw manga videos go to one of the videos and go to your right. Click on More from markcrilley (click on the arrow). There done!

Have fun learning!

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