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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.

103 questions with no upvoted or accepted answers
1 vote
0 answers
228 views

bgl Hello Triangle Blank Screen

This code should draw the "Hello Triangle" (1) that everyone starts off with but it's not showing up. Since it's in Blender, I used (3) as a reference for when to draw. That's why the code itself ...
Guilty Ghost's user avatar
1 vote
0 answers
2k views

Big problem when exporte normal map from Substance Painter to Blender

I need help. I have this problem when I export a normal map from Substance Painter to use in Blender. As you can see in the images it show some dark spots in the object, and it looks worse at ...
Rock Man's user avatar
1 vote
1 answer
4k views

Running Blender under Virtualbox

I setup a VirtualBox machine under Windows for dev related stuff (python, visual studio etc), everything works except that I cant run Blender :( it crashes with ...
yarun can's user avatar
  • 428
1 vote
0 answers
241 views

Is there a way to make Blender 2.8 STOP checking my OpenGL version?

My OpenGL version is just fine, but when Blender checks, it gets a bad result because I'm running via Remote Desktop. This wasn't too bad in previous versions because Blender only checked once on ...
Charles Jenkins's user avatar
1 vote
0 answers
84 views

How to handle drawing with multiple views

I want to draw in the screen space of each ImageEditor. The drawing itself works pretty good, each space has its own draw handle registerd with the correct "view_to_region" functions passed ...
kio's user avatar
  • 41
1 vote
1 answer
558 views

Python Opengl Render doesn't show texture

when I click opengl render button in the GUI of the 3D view, the rendered image contains texture. However, when I use python script to render the same thing, I only get solid image without texture. <...
foothill's user avatar
  • 225
1 vote
0 answers
273 views

Apply 2D filters to camera output in the Game Engine

is it possible to apply custom GLSL shader like the shaders you can set in the logic bricks called "Filter2D" to a camera that is not the main camera? I am rendering the output of a camera in the ...
corporeality_carl's user avatar
1 vote
0 answers
139 views

Mouse event program freezes my Blender

recently I am trying this code for handling some clicks, mixed by bpy and bgl. However when I "Run script", then select it from ...
Ilian Zapryanov's user avatar
1 vote
0 answers
180 views

Modal operator and opengl drawing update issue

For this question, I've coded a little script that draws mesh's elements indices with opengl. All is working well, except when in edit mode, some grab, scale, rotate is done. In these cases the ...
lemon's user avatar
  • 60.5k
1 vote
0 answers
234 views

Convert materials from cycles to bge as visible in viewport material shading mode

In 2.78 the material viewport shading mode of cycles is greatly improved. In fact it is even better than BI in some aspects - for example it now correctly displays cube projection textures, something ...
qwazix's user avatar
  • 1,875
1 vote
0 answers
277 views

Python BGL Draw text in the node editor

I have an operator (MyOperatorTest). How can I make it so that when this operator is run, text is printed on the screen to the top left corner of the node editor? (The operator is in the node editor)
John Roper's user avatar
1 vote
0 answers
176 views

Get error when python script in use bgl is running

My script got error when it ran python script in use blender opengl(bgl). Below python script. ...
tomoyaigarashi's user avatar
1 vote
0 answers
3k views

How to run blender 2.77 on a virtual network render machine with no Opengl support on windows?

I have a server that runs multiple instances of virtual machines and is running windows 10... there is a cinema 4d farm clients running there...and I need to run blender 2.77 slave mode ...but the ...
Andries Robert's user avatar
1 vote
0 answers
900 views

Bones and armature render

How can I make a simple animation render of an armature (to show all bones movements)? This is an OpenGL render, but if i try the OpenGL animation render, the bones disappear.
josh sanfelici's user avatar
0 votes
0 answers
29 views

Copy framebuffer of 3D View into image

General Question: How can I copy the frame buffer of the currently active viewport to an image within Blender? The following link already addressed the question, however it utilizes a modal operator ...
Erasers45-Studios's user avatar

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