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More documents like this are at: OpenGL
3-Sep-12
Tell me one more time what the opengl pipeline is...
2-Sep-12
Tell me about vertex shader
More documents like this are at: Android 1.5
What is renderscript?
More documents like this are at: Computer Hardware
1-Sep-12
How do I add a group in gmail?
Because OpenGL is stateful, how do you target a specific matrix especially in OpenGL ES 1.x (a fixed function pipeline)? For example we know that when we call glFrustum() it sets up the projection matrix, but the documentation suggests that if takes the current matrix and multiplies with the projection matrix? But there are more than one matrix: many matrices that are model, and at least one more that is a view matrix?
More documents like this are at: Shells: My Writes
The hour slithers on... The bird and the beast is up, and so are those that stir the bayou. Won't you be up and create, to shackle the moment, and freeze it for the future.
31-Aug-12
What is a fragment in OpenGL?
30-Aug-12
Version numbers for OpenGL, OpenGL ES, and GLSL
What are vertex attributes in OpenGL ES?
what are model/object/eye/world/screen coordinates?
More documents like this are at: 00.01-About
28-Aug-12
A few alternate bios
27-Aug-12
OpenGL APIs require two things to work. They need a place to manage the state of the OpenGL like a working memory. This is the rendering context. Then they also need a surface to draw on. The buffers are attached to the surface. Example buffers are color buffer, stencil buffer, and depth buffer.
Setting up and managing these two aspects is the realm of the underlying OS. In OpenGL ES there is a standard called EGL that deals with these integration APIs
Is there an OpenGL GLUT for Android?
What is OpenGL ES: A definition and scope
Progressive and Responsive Design by Chiu-ki Chan
More documents like this are at: Recipes
As one may have anticipated, there may be differences in how we digest different types of calories resulting in a net calories being less than what we have evaluated them to be when taking in. Some of the factors appears to be whether they are cooked or not, cell structure of the food (which could get soft and lost during cooking), what kind of microbes are in your gut etc.
23-Aug-12
GLSurfaceView and background!!
22-Aug-12
How to use toast
20-Aug-12
Tell me about Depth in OpenGL? and how to hide hidden surfaces.
The order in which you indicate vertices determine the clock-wise or anti-clock-wise orientation of that geometry (such as a triangle or a square etc). As you follow that winding see how a right-hand-screw will advance. The direction of the advance will tell you which surface is facing outwards and which surface is facing inwards.
More documents like this are at: 00.15-Research
16-Aug-12
What is Coursera?
15-Aug-12
vertex shader. fragment shader. Mistakes I made. links to other resource and so on...
14-Aug-12
What are reserved variable names in GLSL?
More documents like this are at: CS-Java
What is a weak reference?
What happened to glTexEnvf in GLES 2.0?
11-Aug-12
How to work with matrices in OpenGL ES 2.0
More documents like this are at: Humanities Current
It serves well to remember what inspires. I repeat here a paragraph from Ivan Sutherland followed by links to read the rest.
I, for one, am and will always remain a practicing technologist. When denied my minimum daily adult dose of technology, I get grouchy. I believe that technology is fun, especially when computers are involved, a sort of grand game or puzzle with ever so neat parts to fit together. I have turned down several lucrative administrative jobs because they would deny me that fun. If the technology you do isn't fun for you, you may wish to seek other employment. Without the fun, none of us would go on." ..Ivan Sutherland
I came to read this paragraph prompted by James Gosling's Weblog recommending to read his essay on Technology and Courage.
Here is the link to the PDF file titled: Technology and Courage
10-Aug-12
Click on the image below for a fascinating account of how services (water, phone, steam, sewage, travel) are delivered through underground in NYC. If you go to the link make sure you click on each of the embedded links in the annotated image. Just goes to show how complicated/organized complex societies are!!!
3-Aug-12
My triangles are all messed up. Then the mistake boiled down to this piece of code
//6. bottom-triangles //b1, b4, f3 1,-1,1, -1,-1,1 -1,-1,0, //b1, f3, f4 1,-1,1, -1,-1,0, 1,-1,0
Compiler is fine. Just my triangle! Can you spot the mistake! it is a fun mistake.
Each vertex in opengl can have a surface normal. A surface normal is a perpendicular vector with respect to the tangential surface at that vertex. So if you have a triangulated vertices on the surface of a sphere then the normal at each vertex may not be parallel to each other.
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