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Hi everybody, I decide to learn OPEN-GL ES for IPHONE development, but I know nothing about graphics programing. So I've some questions.
1 I know OPEN-GL ES is a series of open standard API. IPHONE still use these standard API or apple define it's own...
Started by Captain Kidd on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
OpenGL/ES1/ES2.
To follow other GL-ES tutorials not made for the iPhone but sharing the same gl code.
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Hi,
I'd like to import objects I create in Cheetah 3D to my open GL iphone app. Can someone show me how this can be done? I can export my objects as any number of file formats, but I'm thinking obj is the correct one. What do I need to do to render this...
Started by dev on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
FBX (Filmbox) is a relatively new and interesting format that seems to be gaining some traction, but you'll find that... .
While I've not done any GLE work specifically, I can tell you at least that obj is the most portable and widely used format in general .
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My nephew is an aspiring game developer. I have taught him a bit of C/C++, and suggested he learn that for a start.
Once he has come to grips with that, which game/graphics API's do people suggest he learn?
I would think DirectX would be current industry...
Started by KiwiBastard on
, 26 posts
by 25 people.
Answer Snippets (Read the full thread at stackoverflow):
Go for Open Source!.
Breath) this, so far, seems worth digging deeper into.
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I want to draw with a texture brush, in a color of my choice, on a white background using OpenGLES.
I have a bitmap image which I use CG to load and turn into a texture. This bitmap is mostly black, but has a white circle in the center that I want to ...
Started by Ben on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
GlTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE....
Around wiki markup):
// Make the current material colour track the current color glEnable( GL_COLOR_MATERIAL ); // Multiply the texture colour by the material colour.
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My question starts from a problem :
I started a project in XCode : a Navigation Bar based one (with a TableView). Then I added a few views, through IB or programmatically... which works perfectly fine. Then, I decided to write my Own ViewClass, inherited...
Started by Gael LE BELLEGO on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Actually, this is the same as yours....
Thanks for your help.
See here for my recommendations on a potentially similar problem .
If it's localized to your OpenGL view, the crash may be the result of not properly initializing OpenGL items inside your view .
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So I am creating my first opengl es application on the iphone. I want to autorelease an object and that was around the time I noticed that I can't seem to find the location of the autorelease pool.
1) Is the autorelease pool already created for me in ...
Started by Mel on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
To only drain at the end of the application
Do you have a main.m? If you are using the standard GL.
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Hi,
I was wondering if there was a way to make OpenGL ES render a batch of quads (rendered with texture page changes) and render them in z order (or reverse).
Note I don't want a ZBuffer, I just want quads rendered in order of zDepth.
Now I know people...
Started by Rich on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Yes, you can definitely do this, as long as you
glEnable(GL_DEPTH_TEST);
and, of course, get.
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Hi, I was just have an idea of creating a card game and I was just thinking whether to use OpenGl or CoreAnimation.Can you please tell me whether it would be a bit of a overkill to use OpenGL for s 2D card game.Thanks :)
Started by Steve on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
If it's just moving cards around, then I'd say use ... .
It really depends on the level of visual effects you are considering .
You can get pretty far using CALayers, images or drawing with quartz for the cards though .
It's hard to say without knowing more.
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I am studying graphics and currently using OpenGL with GLUT. Doing my editing in codeblocks and using an online tutorial located at lighthouse3d . I am using the main method declared on that page however it will not let me compile. The error message consists...
Started by Zach Smith on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Go to the project ....
Return 0; }
The problem is that you are not linking the needed libraries .
}
Change it to this:
int main(int argc, char** argv) { // The code.. .
You probably have a method like this:
void main(int argc, char** argv) { // The code.. .
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I need to get the color at a particular coordinate from a texture. There are 2 ways i can do this, by getting and looking at the raw png data, or by sampling my generated opengl texture. Is it possible to sample an opengl texture to get the color (RGBA...
Started by DavidG on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Assuming your texcoords are [0,1], multiply texwidth*u and texheight*....
The most efficient way I've found to do it is to access the texture data (you should have our PNG decoded to make into a texture anyway) and interpolate between the texels yourself .
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