Questions tagged [opengl]
OpenGL is a graphics standard and API which targets the desktop and workstation markets. It is designed to be easy to accelerate with dedicated computer hardware, and hence most implementations give greatly improved performance over traditional software rendering. Currently, OpenGL is used for applications like CAD software and computer games. It is also cross-platform. The OpenGL standard is controlled by the Khronos group, which also controls OpenGL ES.
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Is there an equivalent to GL_TEXTURE_WRAP_R on GL ES 2.0?
I've been trying to write code that can run on multiple GL versions, since I mostly only use very basic features, and one of the versions I am targeting is GL ES 2.
Since I know you're supposed to ...
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C++ Assimp Library Animations
I want to use Assimp skeletal animation in a GLUT program using the least possible libraries. I want to do the interpolation of the animation myself. How do I render a frame of the animation by doing ...
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AABB algorithm in C++ no vec3 [duplicate]
Hi im trying to select voxels in a voxel world that are at the center of the cameras view.
The players camera X,Y,Z position and its rotations are known. The camera works in this program.
I tried ...
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Are VAOs in OpenGL just a trick to make fewer bind calls?
From everything I've researched, Vertex Array Objects (VAOs) are essentially just a trick, based on the fact that OpenGL keeps some kind of internal stack, so that when you bind the VAO, which ...
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What is the best way to draw chunks?
I'm developing a voxel engine with OpenGL and C++ and searching how Minecraft-like games set up VAO, VBO, and EBO. I'm also dealing with transparency geometry and depth testing issue.
There are 3 ...
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Help utilising obj indices [duplicate]
I'm working on an obj parser its mostly complete but ive run into a problem.
I can access all the indices that are in the file but i cant figure out how to use all of them.
i can use the vertex ...
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How to efficiently construct model matrices in a vertex shader from a small amount of data, for instanced rendering of many moving 3d game characters
I am trying to efficiently render many 3d game characters: many instances of the same 3d model which can change their positions and z rotations each frame. For reference I'm using OpenGL but this ...
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Page curl effect
I am trying to simulate a page curl effect in my custom OpenGL based rendering engine.
I initially implemented the version described in the paper "Turning pages of 3D electronic books" where ...
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Tesselation and Geometry shader do not render anything
I am experiencing an extremely odd situation with the introduction of the tesselation control and evaluation shaders in my OpenGL rendering pipeline.
I defined an instanced indexed mesh whose ...
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My fragment shader is being run on every pixel of the screen
This is my first time using this website and I'm a beginner too, so sorry if what I'm asking doesn't make sense.
I am using C++ and OpenGL to make a basic platformer.
My issue is that the fragment ...
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How can I efficiently render lots of moving objects in a game?
I'm using OpenGL but this question should apply generally to rendering.
I understand that for efficient rendering in games, you want to minimize communication between the CPU and GPU. This means pre-...
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OpenGL doesn't render even though all Objects and Data seems to be correctly set up
No shape seems to show up on screen even though I have meticulously verified everything.
The data set I use which is parsed by my code CORRECTLY(I checked that) to be loaded into a generic array ...
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How the intersection of BVH boxes can determine whether or not a triangle appears?
I'm programming a Ray Tracer using Rust and OpenGL, I've already made Ray Tracing work in the basics by converting the data to an SSBO and sending it to the Shader in a basic way... The problem is ...
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Cross product in any number of spatial dimensions?
I am fitting an ellipse to determine a Kepler orbit for 3 sequential input points along the orbit's path. Let's say that I'm using this for a space simulator. One important thing to note is that the ...
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Broken animation in OpenGL using ASSIMP
Working on a small project, currently trying to implement animation. Like most beginners I am simply following tutorials, this one being the LearnOpenGL Skeletal. All code for Bone/Animation/Animator ...
