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.
4,329
questions
1
vote
1
answer
45
views
Strange scaling on my textures when they are upscaled or zoomed into
I am having a strange issue with my sprites, which is kind of difficult to describe, but hopefully the attached images will illustrate. I have drawn two 1 pixel lines on my sprite to help with this, ...
- 61
0
votes
0
answers
25
views
How to do image anchoring in OpenGL?
I've looked at:
How do I draw a zoomable image in OpenGL?
and
Scaling and locking SpriteRenderer Image to anchor points
but neither fully helped.
I am making a zoomable image in my OpenGL app. ...
2
votes
0
answers
104
views
9 Slicing in OpenGL, want to have the center of the texture repeat instead of stretch
I have some sprites in my game, mostly though not entirely UI related, that I would like to be able to scale to different sizes without warping the borders of the sprite.
Looking around I was able to ...
- 61
0
votes
0
answers
50
views
Box2d into opengl/opengl es?
I recently learned a little bit of OpenGL through learnopengl.com. I've got through the window, gone through the triangle, then shaders along with interpolation, textures, and now transform. When I ...
0
votes
0
answers
26
views
How do I fix java.lang.ClassNotFoundException: org.lwjgl.glfw.GLFW
I have not used Java in a while and thought I might try LWJGL with OpenGL and GLFW.
I am using Apache Maven as a Build System.
It lets me compile the program, but when I run it, it says:
...
- 1
1
vote
1
answer
94
views
Is OpenGL Shader a CUDA kernel?
I am working on sone articles, and need a bit of clarity on following question. Is the OpenGL Shader a CUDA Kernel? When searching the web, I have seen information on differences between kernel and ...
- 111
1
vote
2
answers
74
views
Missing faces at ends of voxel chunks
I'm having problems generating faces in a chunk in OpenGL C++. For example, when I generate faces, they are generated correctly but always at the end of the chunks some faces are not generated.
...
0
votes
0
answers
18
views
How to set matrices for different objects, in OpenGL?
Not sure how to do it, since I'm only seeing one instance of matrix-use drawn (only one of the objects has an energy bar):
...
- 139
1
vote
0
answers
41
views
Cannot transform vectors from viewport to world
I started working on a small raytracer project, and i decided to reuse my already existing openGL renderer to do this, i'm using GLM to manage transforms/positions.
However, i stumbled upon a very ...
- 13
0
votes
0
answers
44
views
Opengl ES color blending is not accurate
I am developing a drawing app and I encountered a problem.
As you can see the color blending feature in opengl es is not accurate.
On the left side of the picture is blended through standard equation.
...
- 1
0
votes
0
answers
30
views
Does an animation need to be loaded with a model?
I'm using assimp for my C++ rendering engine and I'm having difficulties with skeleton animations I've gone through a couple of tutorials/guides such as the skeletal animation chapter on learnopengl ...
- 43
0
votes
1
answer
90
views
How to render frustum shape for debug visualization?
I've been implementing frustum culling in an OpenGL application that appears to be working correctly.
The issue I have been having when trying to render the frustum shape from the camera, my debug ...
- 1
3
votes
1
answer
127
views
Is it possible to use a pre-existing texture buffer containing vertex data to initialise a vertex buffer for rendering in OpenGL v4.6?
I'm generating a heightmap in a compute shader in OpenGL v4.6 and storing it to a texture.
Lets say I actually store the full vertex data in that texture instead of just the height, which is a trivial ...
0
votes
0
answers
73
views
Matrices for OpenGL shaders
So I'm trying to figure out the model, view and projection matrices.
I can, with some effort, find my drawings (3x3x3 structure of cubes) in 3D space and it looks like:
The problem is, the cubes seem ...
- 139
0
votes
2
answers
52
views