Questions tagged [opengl]

Questions about OpenGL (Open Graphics Library) OpenGL is an API used to render real-time 2D and 3D graphics. Blender uses OpenGL for drawing the user interface, 3D view, and the game engine.

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How to reset OpenGl for Solid lighting?

I read the original Reset OpenGL lights, I understand, but I don't do Python. How would I "reset" my settings as shown? I've had trouble with these forever, so my Solid lighting as I work is bizarre. ...
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0answers
381 views

.blend file size much larger after OpenGL Render

I am working on a detailed dialogue scene that is 600 mb. It is a very complex scene, with each part in single layers. I know that is a very big file size, but what my machine can handle it. What ...
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542 views

Moving complex object along bezier path

I am fairly new to blender and am using it to model things that I am loading into OpenGL. I am modeling this logo: I am also animating the gears, which I have done already. I modeled the gears in ...
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1answer
689 views

Add new parametric curve object/type using Python

I'm thinking of implementing an add-on (using Python) for Lagrange curves. In short (after an instance has been added), in Object Mode there should just be a curve (...
4
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2answers
515 views

What are these items that are showing up in the viewport render

I have a model that has animation and I am rendering out to a png sequence. This animation will be used in a web page. I noticed that there are some items that are showing up in the render that are ...
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0answers
34 views

Inverted Solid OpenGL lights? [duplicate]

When i opened up my blender file it suddenly inverted all the lightings of the Solid OpenGl lights and whatsoever. I tried to fix it up but it still wouldn't..! -- Added Explanation as to my reply to ...
8
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3answers
8k views

Get indices of vertices of triangulated faces in python

I'm writing a python script to export triangulated meshes from Blender to an openGL application I am working on. I'm using text files, and I want to export my geometry data in the form of vertices, ...
3
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1answer
305 views

Add 3D content to an image using blender [duplicate]

I have an image of a scene and I extracted the projection matrix from that, so I have the camera calibration. Now, I want to add some 3D objects to this scene. I have already coded something with ...
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0answers
17 views

After rendering with OpenGL it's always rendering with OpenGL with v2.69 [duplicate]

Just once switched to OpenGL rendering, but after that changing to Blender Render or Cycles really doesn't help. Even after quitting Blender and then re-starting it and reopening the scene, it's still ...
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1answer
777 views

Export .obj with normalized UV coordinates

I want export .obj files from Blender. I export them with normals and UV Coordinates. I then import them into an OpenGl application. In UV Editor i am able to display the coordinates of the cursor ...
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3answers
8k views

Is OpenCL possible within Blender either via cycles or internal?

I have the Radeon R9 280X video card and was wondering if there was anyway at all to enable GPU rendering with this card? I know Nvidia has CUDA cores and that works. That's good and all, BUT I don't ...
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1answer
1k views

How to generate final texture image for complete designed scene

I designed a house interior, i used wooden texture and some other texture for walls and windows. How can i generate a final texture image so that i can use that image in open gles ? I added a example ...
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1answer
600 views

Is it possible to render AO with the OpenGL render?

Is it possible to render AO with the openGL render? I know there is a technique called SSAO which is used in some video games, so it should be possible. How can I achieve this?
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1answer
5k views

COLLADA export doesn't preserve animation for all bones

I'm trying to rig and animate a character for use in an OpenGL-based program. I found a simple character model on TF3DM and rigged him by following the excellent character rigging tutorial from ...
4
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1answer
4k views

How to access the window width/height inside a GLSL Shader?

Inside a Python script defining a GLSL shader used on the game engine, how do I access the width/height of the game window?
2
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1answer
600 views

Window blurring or smearing down

When I move my mouse, the window in Blender blurs / smears down. Why is this is happening?
2
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1answer
651 views

Why does smoke render as transparent in the OpenGL render?

In the viewport, smoke looks fine: However, when I render it with the OpenGL render: It looks white because of the background; it's really transparent. What causes this?
2
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1answer
3k views

Hide smoke domain objects in OpenGL quick render

Is it possible to hide the domain object for a smoke simulation in an openGL quick render without hiding the smoke? The domain can be distracting in preview renders even when rendered as a wireframe. ...
4
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1answer
1k views

Can I access the render screen size in a custom filter 2D in the game engine?

I am using Blender Game Engines Filter 2D to make a post effect with GLSL. In an fragment shader applied on the frame buffer, I want to access the size in pixels of that buffer in GLSL. ...

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