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Questions tagged [assimp]

open ASSet IMPort library(ASSIMP) is a portable Open Source library to import various well-known 3D model formats

23 questions with no upvoted or accepted answers
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566 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 ...
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0answers
161 views

ASSIMP - Hierarchy Import

I'm, trying to wrap my head around assimp to import some files, including fbx/obj etc. Normally my experience tells me that I start at root node and then recursively load child nodes until I load the ...
3
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0answers
80 views

Skeletal Animation: No initial bone rotation

I am currently trying to implement animations in my game. I am having an issue where the bones do not rotate properly. In my program, I apply an inverse bind pose to each bone to move them to bone ...
2
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2answers
1k views

Data structure for multiple Textures in materials in assimp

I'm going through assimp documentation regarding materials. Each material can have multiple textures containing various data (color maps, height maps, etc.) and blending data, etc. I'm trying to ...
2
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0answers
908 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, ...
1
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0answers
185 views

How is root motion done in Skeletal animation

I am using Assimp library to load bone and mesh data and using basic interpolation to accomplish the animation part. Right now I want to move my character position with animation, i.e. root motion. ...
1
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1answer
210 views

ASSIMP skeletal animation with some FBX files has issues - weird node added

Hi I'm trying to work load fbx files to my OpenGL Renderer using ASSIMP. However, weird nodes that are not in the original fbx file are added whenever I load the file with the ASSIMP importer. For ...
1
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0answers
531 views

ASSIMP aiNode->mMeshes understanding

I'm trying to use ASSIMP to load an fbx file with a skeleton and animations, but I'm stuck on something I'm misunderstanding and struggling to see it. I've attached 2 images, one of the fbx file as ...
1
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0answers
731 views

trouble getting correct transforms for multiple meshes from assimp importer

I have had excellent success in extracting almost everything i need from a collada file that i imported with assimp, however I am struggling to get the correct transforms for each mesh in the file. ...
1
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0answers
157 views

Skin Mesh Animation Shader Issue

I'm having troubles with properly animating a skin mesh from an .fbx file. I feel like the issue is in the shader, but not sure what is going on. All I know is that I am getting unexpected results ...
1
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0answers
149 views

Updating aiScene in ASSIMP with skeleton data

I am working on a project where I take an unrigged closed mesh, import it using ASSIMP, auto-rig it using the algorithm provided by Ilya Baran and Jovan Popovic and again export it using ASSIMP. I ...
1
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0answers
932 views

How to properly transform vertices for a model loaded using Assimp?

When I try to load a DAE model then vertices are not placed correctly. Here's the code snippet I use to load 3D models using Assimp : ...
1
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0answers
2k views

Assimp - Error loading .obj files

I'm trying to load .obj files in my little game. I decided to use assimp as tool to import those models. But it seems that assimp does not import them correctly. I looked for a simple cube mesh ...
1
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0answers
4k views

load textures using assimp

I've got .obj model with .mtl materials.I load like this: When I get aiTextureType_DIFFUSE I create new texture object and then call ...
0
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0answers
19 views

OpenGL obj loader fails to work

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0answers
23 views

How to export models with multiple animations using assimp

I'm implementing a model viewer that allows for preview and minor editing of a game's 3d model assets (custom model format). I've been searching on the net, and I see that 90% of the use of assimp is ...
0
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0answers
12 views

Question about model loading and textures

I recently learned how to load models with assimp, but I'm confused about something. Assimp loads normal and height vertices, but you can also load height and normal textures. So far, I've done shader ...
0
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0answers
73 views

Exported Blender model is flipped when Imported into game using Assimp

I have made a 3D game engine, and as part of this I use Assimp to load in meshes to my game. One of the meshes I load in is my ...
0
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0answers
35 views

Frustrum culling without per-mesh positions

I am trying to implement frustrum culling in a C++ renderer im writing but I feel like I hit a brick wall. The plan is to load the Sponza level and per mesh create a collision box using Bullet ...
0
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0answers
26 views

Wrong Bone deformations using assimp

Hi I'm trying to animate a skinned mesh in my game using assimp and OpenGL. this question is a follow up of this one : OpenGL Strange mesh when animating Assimp But I'm having diffuculty ...
0
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0answers
49 views

Understanding ticksPerSecond and duration with skeletal animations

That's my first question here so i hope to do all correctly. From various weeks i started surfing the net about Skeletal animation aiming to add a simple animation controller into my small game engine....
0
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0answers
152 views

Rendering an Assimp Scene object in XNA without DirectX or OpenGL

Is there any site that explains how to render an imported Assimp Scene object in XNA/MonoGame using only the Frameworks available in those libraries? I realize that would be at the Vertex/Matrix level ...
0
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0answers
2k 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 ...