Unanswered Questions
1,399 questions with no upvoted or accepted answers
12
votes
1
answer
656
views
Spherical Area Lights do not match reference
So I'm adding spherical area lights to my application, and comparing my results with mitsuba, I am getting some differences (left is my approach, right is mitsuba - a pathtraced reference):
What I am ...
- 114
10
votes
1
answer
704
views
Environment mapping without cubemap (need coordinates projection)
I'm working on a project with C++ and glsl (4.1).
I have implemented a mirror object which is a plane at height 0 that works as follow:
I render the scene with a MVP computed such that the camera ...
CommunityBot
- 1
8
votes
2
answers
490
views
How to generate a multiplier map for radiosity
I am following this tutorial: here
I am at the part where you are creating a hemicube.
I have got the code to render the scene into a texture and therfore an array.
Now how can I generate a so-called ...
CommunityBot
- 1
8
votes
0
answers
432
views
How to draw Shadow Volumes in one draw call?
I've got a simple app that draws 3D cubes using instance rendering and I'm implementing Shadow Volume. Each cube's vertex, uv, normal and index data are statically stored in 4 vertex array buffers. On ...
- 458
7
votes
0
answers
844
views
How to correctly implement 'layered lighting' with Box2D-Lights
How does one only allow Box2D-Lights to affect one and only one OrthographicCamera.
After researching, I found the following answer. This answer goes into detail ...
CommunityBot
- 1
7
votes
0
answers
1k
views
Irradiance Map ( Irradiance environment map)?
As irradiance map is generated for every possible normal for all the texels in environment map (as every texel act as a light source) so that we can look up irradiance map, based on normal of fragment ...
- 189
7
votes
1
answer
1k
views
Draw Edges in OpenGL
I use blender game engine and blender uses OpenGL for graphics. How can I draw lines around all 3D objects? Would this be a job for a filter? Mainly, I want my end result to look drawn.
I found this:
<...
CommunityBot
- 1
7
votes
1
answer
609
views
On Android, How can I avoid FPS drops during sensor listener setup/tear down?
When I open my Android app after 5 or 10 seconds it sets up the sensor listener, during which I see clear stuttering and the FPS drops for a second to 40 instead of 60.
Is there a way to avoid this? ...
CommunityBot
- 1
7
votes
1
answer
4k
views
Drawing fonts with LWJGL3 with OpenGL
I'm very sorry if this question has already been answered, but since I've been struggling with this for many days I thought I'd give it a shot here.
My goal is to somehow render some text on the ...
CommunityBot
- 1
6
votes
1
answer
503
views
LibGdx animation sequence
In my game the character movement animations work fine
but now I'm trying to do a sequence of programmatic animations,
for an enemy character, and it's proving to be a pain.
I'm just doing it on ...
CommunityBot
- 1
6
votes
1
answer
740
views
Spawning enemies in four different positions with a fixed trajectory in android game
This is my first android game, I appreciate all the help. I want to define 4 spawning zones starting from out of the screen (left, right, up and down). Enemies coming from this areas have a fixed ...
CommunityBot
- 1
6
votes
0
answers
195
views
Why is my OpenGL enabled Java game not detected by Fraps?
Recently I found out that I could enable OpenGL hardware acceleration in my Java game with the line
System.setProperty("sun.java2d.opengl", "True");
Initial ...
- 16.4k
6
votes
0
answers
980
views
Text alignment in OpenGL with FreeType2
I'm trying to implement font rendering and have got into some trouble with glyph metrics.
Here's the code where I get the metrics:
...
- 697
6
votes
1
answer
2k
views
Water wave simulation
I'm having a strange behavior simulating water waves. It works perfectly with directional waves, but point waves don't work like expected. If i do not normalize the directional vector(WoldPosition - ...
- 368
6
votes
3
answers
2k
views
Counting multiple touches using Cocos2dx 3.2
I'm trying to count the number of active touches in screen in order to perform an an action in case that there are two touches:
...
CommunityBot
- 1