Unanswered Questions
1,160 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
9
votes
1
answer
1k
views
Using PhysX, how can I predict where I will need to generate procedural terrain collision shapes?
In this situation, I have terrain height values I generate procedurally. For rendering, I use the camera's position to generate an appropriate sized height map. For collision, however, I need to have ...
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
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
0
answers
281
views
How can I call a native mobile API in Construct 2?
How can I use mobile API features in a Construct 2 game (HTML 5/JavaScrit engine)?
I didn't find anything about that on the net, unlike other game frameworks like Corona Enterprise or Cocos2d.
- 16.4k
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
979
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
0
answers
213
views
How can I create a set of collision points for an arbitrary mesh?
In my project I am working on automatically deforming an arbitrary mesh with respect to another arbitrary mesh, within the context of user generated content, similar to this deformer being developed ...
CommunityBot
- 1
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
5
votes
0
answers
311
views
Rotation of a ball moving on a surface
I have a ball that moves along a platform. The ball is characterized as a sphere that has a radius and a position. The platform basically is a rectangle consisting of two vertex triangles. Its class ...
- 51