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12 votes
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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 ...
tobspr's user avatar
  • 410
12 votes
3 answers
1k views

How to hide a post-processed mesh outline when/where the mesh is hidden

I'm working on setting up an active outline in my 3d engine, a highlight effect for selected 3d characters or scenery in the screen. After working with the stencil buffer and getting some ...
nils's user avatar
  • 221
11 votes
3 answers
3k views

Why do prefabs speed up loading?

I have a scene with a massive terrain. It took a long time to load (approximately 60 seconds) when I pressed play. I am in the editor. I prefabbed it. Now it only took about 5 seconds to load when ...
Evorlor's user avatar
  • 5,793
10 votes
0 answers
573 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 ...
Zick's user avatar
  • 99
10 votes
0 answers
486 views

Implementing a SceneManager using OpenFL

I'm trying to implement a basic SceneManager using OpenFL and Haxe. I don't have a lot of experience using OpenFL and Haxe so I have a few problems. Here is how I designed the SceneManager class: <...
George R.'s user avatar
  • 233
10 votes
0 answers
1k views

How do I reconstruct depth in deferred rendering using an orthographic projection?

I've been trying to get my world space position of my pixel but I'm missing something. I'm using a orthographic view for a 2.5d game. My depth is linear and this is my code. ...
Jeremie's user avatar
  • 101
10 votes
1 answer
3k views

How can I Implement spin in billiard game?

I'm not sure that you played billiard or snooker before.if you played you should know about spin. but anyway if you don't know about it you can see it in this video I want to Implement spin like this ...
Seyed Morteza Kamali's user avatar
9 votes
1 answer
1k views

How do I draw a name above monsters head?

My player HUD works perfect, but when I move, the monster name moves with me instead of getting attached to the monster. Player has a HUD and I'm using Scene2D.ui ...
Printer's user avatar
  • 317
9 votes
2 answers
2k views

Creating a curved mesh on inside of sphere based on texture image coordinates

In Blender, I have created a sphere with a panoramic texture on the inside. I have also manually created a plane mesh (curved to match the size of the sphere) that sits on the inside wall where I can ...
user5025's user avatar
  • 201
9 votes
0 answers
644 views

How can I compensate for camera rotation changing PCSS penumbras?

I am implementing PCSS and I am using a directional light. The directional light volume is clamped to the camera frustum (as is typical with directional lights). So when the camera rotates, the ...
Olhovsky's user avatar
  • 3,519
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 ...
Sion Sheevok's user avatar
8 votes
0 answers
250 views

How to draw text with characters rendered in reverse order in a Godot game?

I need to have some text showing up in my Godot game in a way that each character overlaps the character directly to its right, like so: ...
rraallvv's user avatar
  • 971
8 votes
1 answer
369 views

How to move a portion of bezier/spline curve along its complete bezier/spline curve?

Based on the image below, I have a curve (orange) which is a bezier sub-curve of an original curve (longer black curve). The original curve consists of a number of cubic bezier curves joined together. ...
NotEveryDay's user avatar
8 votes
1 answer
229 views

How to create an illustrator/photoshop-like pentool for creating bezier curves in Unity

I found a very useful bezier curve creation code here, which I am using. I need to create complex segmented bezier curves so I want update the code to create illustrator/photoshop-like pen tool bezier ...
hutfelt's user avatar
  • 213
8 votes
2 answers
447 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 ...
Dender Red's user avatar
8 votes
4 answers
10k views

Handling movement on sloped surfaces - clamping character to sloped surface

I've noticed that a lot of people seem to have this issue but I've yet to find an actual working solution - when a rigidbody-based character controller (I'm not using Unity's character controller) ...
katsuragi545's user avatar
8 votes
0 answers
398 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 ...
XPac27's user avatar
  • 458
8 votes
1 answer
2k views

LibGDX Box2D Lights - Illuminate background

I have a box2D world made of tiles. I use a custom DirectionalLight for light up the scene from above (It shines through transparent blocks [eg.: the water] more deeply). The problem is (as expected), ...
Rothens's user avatar
  • 453
8 votes
2 answers
2k views

NegaScout with Zobrist Transposition Tables in Chess

I'm trying to put Transposition tables into my alpha beta scout. I do see an incremental speed boost I think toward mid or late game, however, even with a table size of 1-2GB, its may or may not be ...
missCache's user avatar
8 votes
1 answer
1k views

Why the AnchorPoint doesn't affect the `CCLayer` Positioning?

I think there is a difference between the CCLayer and CCNode behavior when I change their AnchorPoint. I will describe what I mean and please somebody explain it. Scenario: I start with ...
Emadpres's user avatar
  • 940
8 votes
1 answer
756 views

Understanding how texCUBE works and writing cubemaps properly into a cube rendertarget

My goal is to create accurate reflections, sampled from a dynamic cubemap, for specific 3d objects (mostly lights) in XNA 4.0. To sample the cubemap I compute the 3d reflection vector in a classic ...
cubrman's user avatar
  • 1,551
8 votes
2 answers
539 views

Why isn't my cbuffer updating?

I am really frustrated because my cbufer isn't updating. This is my VS: ...
Daniel Hop's user avatar
8 votes
1 answer
436 views

How can I fit a tree graph into a grid?

I have a tree graph that I'd like to fit into a grid, the result being a grid-based maze that adheres to the tree graph. Are there any good maze algorithms that are able to start with a known ...
IanLarson's user avatar
  • 771
7 votes
1 answer
2k views

Unity 5.3.5 - How to setup a lobby with general game settings?

I am currently working on the lobby for my game. I have followed these tutorials (https://www.youtube.com/watch?v=jklWlm5v21k), which were very helpful, and was able to setup my lobby like this. The ...
Jasper's user avatar
  • 133
7 votes
0 answers
784 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 ...
BleedObsidian's user avatar
7 votes
0 answers
915 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 ...
user2259784's user avatar
7 votes
0 answers
723 views

How to link assimp lib to universal app

I cannot make assimp object loader work with universal app, and I got the same problem as this one: Assimp and directX12 universal apps I tried the static library approach mentioned in the answer of ...
Oscar's user avatar
  • 261
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: <...
ruckus's user avatar
  • 193
7 votes
1 answer
565 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? ...
Timothy's user avatar
  • 191
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 ...
Allar Viinamäe's user avatar
7 votes
2 answers
1k views

Aligning pathfinding to the center of tiles?

I'm looking to achieve tile by tile movement in a project I'm working on. I employed the use of the asset Simply A* Path-finding to allow a unit to navigate the terrain. Since the tiles are simply ...
user4985's user avatar
  • 165
6 votes
2 answers
1k views

Interpolating between positions unfeasible at 30 frames per second?

I am working on a 3D platformer in Unity and I am targeting Android devices. The game consists of a lot of objects smoothly interpolating from the bottom of the screen to the top. This whole time I'...
TheSaviour's user avatar
6 votes
0 answers
78 views

How can I make sure my OpenCL code works correctly on different graphic cards?

I'm testing on adding some OpenCL code in my game, but I only have a single Nvidia card & I'm not sure the code will run normally on other platforms. Is there any way to make sure my code runs ...
ravenisadesk's user avatar
6 votes
0 answers
183 views

How many Pipelines in a Typical Rendered Scene DirectX12

I'm learning DirectX12 right now and I'm missing a few pieces of the puzzle in my own head on the overall structure of how you would setup a game. Specifically, I'm trying to get an idea of how ...
FAtBalloon's user avatar
6 votes
0 answers
315 views

LibGDX Rectangle not Scaling to ImageButton Instance as Expected

below is the class I wrote for a GameButtoninstance: ...
HoopsMcCann's user avatar
6 votes
0 answers
722 views

Procedurally generated paths with intersections

The Problem I've been attempting to create some procedurally generated paths for a while now, but I've reached a problem when it comes to generating the intersections of the paths. The paths are ...
Daniel Holst's user avatar
6 votes
1 answer
553 views

Orthographic Camera is not Occlusion Culling?

In the scene where the occlusion culling is done as desired, When I change the camera to orthographic, occlusion culling is not done. (Look at the sphere the red arrow points to on the right) What ...
mjk6026's user avatar
  • 246
6 votes
1 answer
437 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 ...
user1572522's user avatar
6 votes
4 answers
2k views

Lunar Lander calculating gravity, acceleration and collision in GameMaker

I've already asked this on the GameMaker forums but had no response so far. I'm making a little Lunar Lander game as my first foray in to GameMaker, I'm wanting to have the ship land and take off ...
el_simmo's user avatar
6 votes
1 answer
708 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 ...
OrangeHat's user avatar
  • 123
6 votes
2 answers
576 views

Collision detection problem in XNA4/Monogame

I have been trying to get 3D collision detection working for a while and I think (hope) you people can help me. For my project I have created a 'sprite3d' kinda class which is called ...
bobythebob's user avatar
6 votes
0 answers
155 views

balloon ligher than air with libgdx, impementation of FixtureDef.density, gravityScale, linearDamping?

I use libGdx/box2d's physic. My intention is to create a balloon filled with helium (a body, what hovers above a surface, if we apply a little force to it - it moves fast but not far, if we push ...
Victor G's user avatar
6 votes
0 answers
277 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.
Burrich's user avatar
  • 161
6 votes
0 answers
185 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 ...
Arthur's user avatar
  • 61
6 votes
0 answers
883 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: ...
RenX's user avatar
  • 707
6 votes
1 answer
256 views

How do I detect image clicks in Dark GDK?

I am trying to determine if an image has been clicked, using the Dark GDK game engine. I've found no methods in the engine that do this. I would rather not brute force this with a large nested if/...
BobMan's user avatar
  • 61
6 votes
0 answers
181 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 ...
sebf's user avatar
  • 2,664
6 votes
2 answers
3k views

Reading from a staging 2D texture array in DirectX10

I have a DX10 program, where I create an array of 3 16x16 textures, then map, read, and unmap each subresource in turn. I use a single mip level, set resource usage to staging and CPU access to read. ...
Don Reba's user avatar
  • 161
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 - ...
Haruko's user avatar
  • 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: ...
DGomez's user avatar
  • 133

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