Elysian Shadows

Hello, I couldn't think of a better topic to post this question in other than programming discussion because it has to do with programming. To be more specific, learning programming from a tenured college professor who may or may not know how to teach or what they're doing. I am a sophomore undergra...

Thank you.

I guess I thought blending was a part of the fixed-function pipeline, and when I use shaders, any blending I wanted to occur is calculated in the shader. I guess I should study farther in some books. Thank you though.

This seems to me like a solution you came up with yourself. My question is: what is the problem? If you can elaborate on what problem you're running into more specifically than "my code is a mess", perhaps we can offer you some ideas. I'm having this problem with shaders and frame buffers...

Are you sure that what you are talking about here is not "vertex buffers" rather than "frame buffers"? No, I'm actually talking about user-defined frame buffers, frame buffer objects. Maybe this is a dumb question and I'm overthinking the problem. I understand the whole front bu...

Greetings, I have a question regarding how I should use frame buffers in OpenGL 3.3 for a 2D game I'm slowly making. I tried to write down all the frame buffers I think I'd need. Each framebuffer would be the dimension of the screen, so 640x480 for instance. I came up with something like this: Use a...

You can give your shader some uniforms that define which part of the texture to use and use them to calculate the value of gl_TexCoord[0] in your shader. Manipulating the texture matrix is also possible but I find the uniform approach more straight-forward. I'm not using shaders though. I'm learnin...

Hello, I have a question. What is the best way to animate a sprite from a sprite sheet loaded in as an OpenGL texture? The only ways I could think of were to change the values used in glTexCoord*() or to switch the matrix mode to GL_TEXTURE and then use glTranslate*(). What other ways are there? Rig...

Sorry, I had to type this post twice because my internet was being stupid. So the second time was a little rushed. I keep getting the error "identifier not found." Can you please post the exact, full error in [ code ] tags. I have no idea which identifier you're talking about. Are you sur...

Well it's not working. Well I can't help you [without more information about your actual problem]. Could you perhaps describe what exactly "not working" means? Sorry, I had to type this post twice because my internet was being stupid. So the second time was a little rushed. I keep getting...

I am making a level editor with C++ and SDL. In this program, I have function called CreateTexture() that returns a texture with the dimensions specified in what I pass through the parameters. This function is declared in a header SysFunc.h and defined in SysFunc.cpp (sorry if I use the wrong termin...

When the function goes out of scope, the copy of the pointer is destroyed (again, it's just an integer on the stack; whereas the thing it points to (in this case the "SDL_Renderer") is dynamically allocated memory on the heap which needs to be freed at some point). So you don't need to &q...

So I have a big question. I'm using C++ with SDL2 and I want to know if I can pretty much do this without any damage: #include<SDL.h> //Creates an SDL Texture in a very unefficient manner SDL_Texture* CreateTexture(SDL_Renderer*& render, int width, int height) { //Create and fill a surface SDL_S...

Hello! I have gotten to the point of my programming knowledge to know that I have surpassed the noobs. I may have even consider myself surpassing the intermediates but there's really something holding me back from that. Say for example, I wanted to make a shmup. I wouldn't know how to go about doing...

I tried using every possible flag, which probably isn't good, and GL_BGR WORKS. The question is why does it work? Do I need to read the red book of OpenGL in order to fully understand why?

I've been learning how to program OpenGL with SDL in C++ and I've reached a point where my mind has been obliterated. I am no computer scientist so OpenGL is god-like powers for game development. What I'm trying to wrap my head around is the bits and bytes and depth size and buffer size. At least th...