Blender is an open source 3D modelling software with built-in game engine, Bullet physics engine and fluid animation engine. Questions involving issues with Blender itself should be posted on the relevant Stack Exchange site, Blender.SE.

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Normals in my skinned model are not animated

I have a blender skinned mode with animation. Normals look like they are messed up. This is how it looks in Unity3D before and after animation. As you can see, my model should be lit up just like ...
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608 views

importing animations in Blender, weird rotations/locations

This is for the Blender 2.6 API. There are two problems: 1. When I import a single animation frame from my animation file to Blender, all bones look fine. But when I import multiple (all of the ...
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27 views

Trouble with Lightmaps When Meshes Intersect

I've been working on making lightmaps for a game on mobile devices (meaning that individual texture sizes cannot exceed 2048 and that file size needs to be as small as possible), but I'm running into ...
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221 views

Export Blender 3D animation to be played by Android OpenGLES

Below code snippet shows the way to export coordinate of bones: def export_bone_matrix(armature, bone, label, file_handler): SystemMatrix = Matrix.Scale(-1, 4, Vector((0, 0, 1))) * ...
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261 views

Blender, Exporting to Collada, Assimp and Normal Maps

I have a simple model that uses a diffuse and a normal map - in this case just two textures applied to the same material, where for the normal map I uncheck all the options in the "Influence" section ...
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81 views

Organize different layers of repeating texture

I'm using Blender for creating assets for a 3D video game (FPS). Particularly i have to create a long wooden fence and i'd like to use one 700*700 texture for the entire fence so different part of ...
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55 views

Blender: calculation of elevation and rotation angle from plane

I have a generic plane (any location, any rotation around every axis) with its normal axis passing by the center. Then I have a generic point and I need to find the elevation and the rotation angle ...
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137 views

Posible to export f-curves in blender?

I work with some friends on a rail shooter game in openGL. For creating our world we are using Blender. Since we want our Tank to follow a path I have started to work with creating bezier curves and ...
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822 views

Blender: How to merge multiple meshes of same object?

I have run into a bit of a problem creating my 3D model. I started with a single mesh and added additional meshes (all in edit mode) to create my geometric shape. They are all part of the same object, ...
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162 views

Blender models appear in UDK asset manager, but not in game

I am new to UDK and blender. I am using UDK3. I have tried the following so far: Making the mesh origin, (0,0,0) Making the parent bone origin (0,0,0) Parenting the root bone with the mesh I have ...
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99 views

Blender 2.6: UV-Matching on Non-Image-Textures

Situation: I want to model a piece of wood in Blender (2.63.0). In order to do this I use a set of Noise and Clouds textures on a brown material. But these textures are warped and shown in the wrong ...
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48 views

How i can sign and/or group a specific set of vertices in a 3D file container like OBJ ? - in Blender

I would like to export a 3D model with each part having a name or a label if you will. For example i would like to export a model of an human body and name each part in specifics vertex groups like: ...
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23 views

Color from OBJ not displayed in Blender

I want to import some .obj file that I have made with MeshLab. The point cloud file was actually in .pcd format and I used pcl_pcd2ply tools from PCL to change it into PLY-Format. Then I import it ...
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41 views

Relative Transformations for Bones

I'm using Blender to export my armatures in relative coordinates, and I'm trying to get to absolute coordinates in my engine. For the above example, the childBone's tip is an offset of [-1,0,0], ...
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72 views

Why isn't my Blender FBX not appearing in XNA?

I am trying to display a simple cube in XNA. The cube is the default Blender cube exported to a .fbx. Re-exporting the cube has had no effect. I have also varied the camera's z-distance from 5 to ...
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68 views

Unity import from blender missing action animation

I'm trying to import my .blend file into unity, but one of my animations never appears in Unity. That animation is "Fall", which is observable in Blender's "NLA Editor". I am currently exporting as an ...
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110 views

How to export blender coordinate to be used in Android OpenGLES

I'd like to create my personal light-weight Android 3D engine to show 3D animation configured by Blender. I have successfully loaded the Blender-created 3D models by OpenGL ES on Android. Now, I'd ...
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58 views

Animation of a 3D model's parts from code

I'm creating a game in XNA where will be an object called a tower. Its action can be described as two phases: aiming and firing. Here's a model I'm creating in Blender: I want the tower to have 3 ...
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74 views

Exporting .bullet file from Blender Render

I'm trying to export my blender render bullet world to a .bullet file. Unfortunately, it seems like when I bring my bullet world to the game engine it drops the bullet info. Is there a way to export ...
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244 views

Why does Assimp appear to be loading vertices in the incorrect order in this code?

I'm getting a weird bug in my code that is reading in the vertices from an .obj file. The .obj file is just a cube, hence there are eight vertices. When I print out the vector it seems to work ...
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115 views

Bounding box not right rotation XNA blender object (.fbx)

I am importing .fbx models (a simple cuboid), the model itself displays fine (and is repeated to make a wall) however the bounding box seems to be on the wrong rotation. Below is a screen shoot: ...
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129 views

Draw mesh with multiple bones

So I currently have an object made up of only one mesh. And this object contains three bones. One for strecthing the mesh left, one for streching the mesh up, and a center bone, which moves the object ...
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449 views

Calculating the correct roll from a bone transform matrix

Read this forum topic for more info: http://blenderartists.org/forum/showthread.php?260602-transform-matrix-to-bone-%28head-tail-roll%29-bug I'm trying to get my Blender3d modeller importer to create ...