2
votes
0answers
403 views

How can I combine my scrolling effect with the vertex lit shader?

I want my shader to work in both Forward and VertexLit rendering modes. I'd written a texture scrolling shader, but I also want to consider lighting which is produced by Vertex lit shader. I can't add ...
2
votes
0answers
193 views

OpenGL transparent framebuffer texture

I'm trying to implement atmospheric glow like this. It was a huge pain to get it done, since I'm new to FBO and OpenGL, but I managed to do something similar to what the OP wanted. I followed his ...
2
votes
0answers
455 views

GLFW3 multiple windows

I'm trying to use GLFW3 to develop VJing application. So basic idea is use two windows: 1st window for fullscreen projection on secondary monitor (basically projector) 2nd window for (hopefully) ...
2
votes
0answers
964 views

Unity 4 mecanim; 'Quaternion to Matrix conversion failed, input quaternion is invalid'

I'm trying to animate a stick figure in Unity, with placeholder animations. Character is built/animated in Blender, exported to FBX. When imported to Unity, everything appears correct in the editor. ...
2
votes
0answers
298 views

Ashikhmin-Shirley model implementation: ugly result

I am trying to implement the Ashikhmin-Shirley model using these formulas: This is the GLSL 1.2 fragment shader code: uniform vec4 materialAmbient, materialDiffuse, materialSpecular; uniform ...
2
votes
0answers
84 views

Framebuffer Heightmap Performance Problems

I am using a framebuffer to procedurally create heightmaps with perlin noise in GLSL shaders. There are two main problems that I am experiencing with this. I have a quadtree for the terrain and in the ...
2
votes
0answers
1k views

Arcball 3D camera

I have checked multiple threads before posting, but i havent been able to figure this one out. Ok so i have been following this tutorial, but im not using glm, ive been implementing everything up ...
2
votes
0answers
145 views

Unproject considering parallax depth

How can I take screen coordinates (or alternatively world coordinates on the 'primary' parallax plane) and find out what world coordinates they translate into when taking parallax depth into account? ...
2
votes
0answers
135 views

1:1 mapping of texels to pixels with DX11 and multisampling and linear interpolation

Is it possible to get a 1:1 mapping of texels to pixels on a multisampled target in DX 11 with interpolation? It seems to me that the texture coordinate used in the shader is always one of the ...
2
votes
0answers
222 views

How do I compute the angle between a pixel on an irregular curve and a circle colliding with it?

I'm building a custom physics engine to accompany a level-editor. This image shows how the level-editor outputs levels: Now, some explanation is in order. The curve is defined by the red points. ...
2
votes
0answers
375 views

Access Android Camera.Parameters from Unity

I would like to access the android defined class Camera.Parameters.getHorizontalViewAngle() from a Unity3D c# script but my java skills are limited. Can anybody offer any help? I have this code: ...
2
votes
0answers
331 views

Monogame working with Krypton

I am trying to make a simple 2D game engine using Monogame and the Krypton 2.0 lighting engine. So far I have succeeded in rendering a light but I am unable to generate any shadows from any hull's. ...
2
votes
0answers
190 views

Mapping heightmap to spherical clipmap

How would you map the points on a spherical clipmap to a heightmap? My coarsest clipmap has an outer radius of PI and an inner radius of PI/2. My coarsest heightmap goes from -PI, PI on the x axis and ...
2
votes
0answers
397 views

How to create heat haze effect in Libgdx?

I would like to create a heat haze effect for a 2D game I am making. Do You have ideas or suggestions, how to get that effect. I am using Libgdx(OpenGL 2.0). Thank You in advance!
2
votes
0answers
435 views

XNA 4.0 Pixel Shader 3.0 Exact Texture Lookup/Sample Issue

I am stuck on trying to solve this problem. I originally had some shaders written that worked for XNA 3.1, but after converting to XNA 4.0 they would no longer compile due to instruction counts, flow ...
2
votes
0answers
243 views

Chunk Texture3D GPU generated vertices

I read GPU Gems 3 from NVidia about procedural terrain. It's quite interesting but not applicable for me because I only read the online version without the shipped DVD so I'm not able to download the ...
2
votes
0answers
143 views

Stereo 3D: drawing 2D elements at apparent screen depth

I'm developing an application making use of DirectX11's stereoscopic features. At such I am not relying on nVidia's automatic implementation. That means I have to replicate a way to render 2d elements ...
2
votes
0answers
253 views

beginContact triggered more than once on some objects

Short version: It looks like beginContact is detecting continuous collisions. I'd like to avoid that. Long version : I use Box2Dweb to write a 2D platformer. It's my first game using this lib, and, ...
2
votes
0answers
1k views

Libgdx ParallaxScrolling and TiledMaps

I implemented ParallaxScrolling for my SideScroller project, everything is working but the tiled map (the most important part!). I've been trying out everything but it doesn't work (see the code ...
2
votes
0answers
189 views

Writing to a D3DFMT_R32F render target clamps to 1

I'm currently implementing a picking system. I render some objects in a frame buffer, which has a render target, which has the D3DFMT_R32F format. For each mesh, I set an integer constant ...
2
votes
0answers
440 views

Exporting 3DS Max animated biped character into Assimp

I've been having some trouble with MD5 meshes exported from 3DS Max into my C++ program, using Assimp to import the model and its skeletal animation. If the models were rigged manually with bones, ...
2
votes
0answers
345 views

Quaternion to direction vector - flipping

I've kinda solved this myself by adapting the Camera::setDirection code from OGRE to work for my need: Now I have the following code: Vector3 boneDir = getBoneWorldOrientation(mEntity, mHips) * ...
2
votes
0answers
368 views

Call Unity3D coroutines from a scripting language

I created a simple scripting language to use on a Unity3D game. My parser generates an AST with nodes for every type of operation, and to run the script all I need to do is call Execute() on the root ...
2
votes
0answers
109 views

UDK Modular construction (customisable vehicles etc)

I'd like to build an interface whereby the user can attach various components and blocks onto a vehicle, this is then saved (as object/coordinate, rotation, scale values - in database) and can be used ...
2
votes
0answers
292 views

iPhone GLSL shader dynamic branching issue

I am trying to pass an array of vec3 as uniform and then iterate through them on each pixel. The size of array varies on situations so I can't make the loop with constant number of iterations. ...
2
votes
0answers
467 views

UDK: Animating characters with weapons

I imported a custom character and a pistol model to UDK and both work, but the pistol doesn't appear with the animation of the pistol when I shoot or reload... Also, the character doesn't change its ...
2
votes
0answers
228 views

How to trace contour of shapes with holes?

I am experimenting with the RVO2 library for collision avoidance in a 2D simulation. This library supports specifying arbitrary obstacles as a list of vertices. The obstacles must be full shapes, i.e. ...
2
votes
0answers
567 views

Why does my RigidBody collision fail depending on which entity is moving?

I am working on a UDK project and have a collision problem. I have a Crate which is a kActor with RigidBody physics and my player who is a Pawn. When my player moves and collides with the crate, the ...
2
votes
0answers
279 views

Camera - View matrix in Android + openGLES 2

I am trying to use the touch screen on the tablet to control my camera movements and generate the view matrix accordingly. I get the x and y coordinates of the screen and after doing some sanity ...
2
votes
0answers
468 views

Can I use a shader with 2 different textures in Cocos2D (x)?

We are evaluating a variety of different graphic engines for use in our game and we want to be able to use 2 different textures for many of our sprite maps. One sprite map would be the standard RGBA ...
2
votes
0answers
180 views

Difference between multiple AudioUnits and one AudioGraph with a MultiChannelMixer

I'm porting my game to iOS using MonoTouch, and I'm having some trouble getting sound output to work. SystemSound/AVAudioPlayer is way too simple for my needs (I need looping and multiple simultaneous ...
2
votes
0answers
146 views

How to improve my maxscript random blood generation code?

The idea was simple. Draw basic blood drop meshes. Shuffle them with random generator to get final drop's. Export and render them in game as other meshes. The problem is that it's not looks like a ...
2
votes
0answers
103 views

Execute a trigger after research is complete

I'm making a map where I want to destroy a building when it finishes researching a certain ability. How do I create a trigger that accomplishes this?
2
votes
0answers
384 views

glFramebufferTexture2D gives corruption with cube map textures

I am using glFramebufferTexture2D with cube map textures but it gives corruption in texture. draw_cube() function works perfectly when i draw that on default framebuffer. GLenum ...
2
votes
0answers
314 views

Friction due to gravity in an impulse based physics engine

In my physics engine, I'm using impulses to solve collisions. I'm basing all calculations on these equations: impulse = desired_velocity_change * mass impulse = force * time friction_force <= ...
2
votes
0answers
429 views

Per fragment lighting with OpenGL 4.x tessellated model

I'm experienced with OpenGL 3+. I'm dabbling with tessellation shaders and have now got to a point where I have a nicely tessellated teapot/plane demo (quick look here) As can be seen from the ...
2
votes
0answers
259 views

How do I use the morpher modifier in 3dsmax to morph into several targets simultaneously?

I have a 3D-Face from Facegen here including all necessary phenomes' positions. But these targets are separated into upper, lower teeth, sock and eyes. How do I combine them for the face to morph into ...
2
votes
0answers
640 views

Rotation of viewplatform in Java3D

I have just started with Java3D programming. I thought I had built up some basic intuition about how the scene graph works, but something that should work, does not work. I made a simple program for ...
2
votes
0answers
134 views

Light on every model and not in the whole scene

I am using a custom shader and try to pass the effect on my Models like that: foreach (ModelMesh mesh in Model.Meshes) { foreach (ModelMeshPart part in mesh.MeshParts) { ...
2
votes
0answers
137 views

Is there a way to export 3D objects with animation from Blender or any other app into OpenGL ES 1.1 code?

The problem is that all the examples I've found are obsolete or iOS/Android specific and not "pure" OpenGL ES 1.1. If anyone can provide me with a good example/tutorial/book it would be very much ...
2
votes
0answers
494 views

ECS, databases, XML and serialization

My entity/component/system engine is coming along quite nicely; I have two very different apps working on the same executable. (One 2-d scroller, one 3D Asteroids-type game). In the interest of ...
2
votes
0answers
230 views

Get Specific depth values in Kinect (XNA)

I'm currently trying to make a hand / finger tracking with a kinect in XNA. For this, I need to be able to specify the depth range I want my program to render. I've looked about, and I cannot see how ...
2
votes
0answers
217 views

Vertex Normals, Loading Mesh Data

My test FBX mesh is a cube. From what I surmise, it seems that the cube is on the extreme end of this issue, but I believe that the same issue would be able to occur in any mesh: Each vertex has 3 ...
2
votes
0answers
279 views

What are the document grid settings in inkscape for making an isometric tilemap for tiled?

I am using inkscape to create a isometric tilemap. What settings do I need on the grid in document properties in inkscape to make it match up to a 64 x 32 grid in tiled?
2
votes
0answers
483 views

5.1 sound in Unity3d 3.5

I'm trying to implement 5.1 surround sound in my game. I've set Unity's AudioManager to a default of 5.1 surround and loaded in a 6 channel audio clip that should play a sound in each of the different ...
2
votes
0answers
659 views

changing body type without change of center of mass

I have an box2d project with some bodies in it, which move around without any user interaction. But if the user selects one of the bodies, he should be able to move it around just like he wants to. ...
2
votes
0answers
219 views

How do I acknowledge collisions with volumes in UDK?

As part of creating a stealth system, I've decided to place volumes over light sources as a first step. The idea being that when a pawn walks into one of those volumes, it will be logged. How can I ...
2
votes
0answers
1k views

Why is my deferred lighting implementation so expensive?

I've implemented deferred lighting and I tried to put about 20-26 lights on the viewable space of my map, and it brings down the FPS from 61 to 28-31. It also makes my VGA temperature to go from 68°C ...
2
votes
0answers
296 views

Kinect User Silhouette Shader

I have this usermap from kinect's depth data (size is 320x280) and i want to display it on my game. The problem, of course it's ugly (first image) and i want to have beautiful effect like in the ...
2
votes
0answers
682 views

Geometry Shader and Stream Output with Directx11

I am having trouble trying to send verticies generated in the Geometry Shader to Stream Output. What I am trying to accomplish is to generate verticies from the Geometry Shader and store them to a ...

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