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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.

0 votes
1 answer
27 views

Graphics card unsupported

So ive been trying to install a later version of Blender on my laptop. Currently running 3.4.1. Ive done work on my desktop in 4.1 and obviously cant open files in 3.4. but i believe 3.6 can open 4.1 ...
Tony Sands's user avatar
0 votes
0 answers
308 views

how do you fix the blender 4.1 open gl problem

i understand this issue but i do not know how to resolve this issue. can someone tell me how to do this? this happens during startup and then closes when i click OK.
Bludus's user avatar
  • 70
0 votes
0 answers
14 views

3d viewport display rendering problem [duplicate]

I have this strange issue this morning... all objects seem to be half xrayish... last night all was good... as i pan or rotate is all flickers
Tony Sands's user avatar
1 vote
0 answers
24 views

Blender and Active Stereo Display (3D Vision or similar)

I am new to Blender. I am drawn to it because of 1) its drawing capability and 2) its supposed support of stereoscopic display. I have an "Nvidia 3D Vision" system that works under either ...
oldnewbie's user avatar
1 vote
1 answer
50 views

Unable to read depth from buffer when offscreen rendering

I'm trying to read the depth buffer from a frame buffer during offscreen rendering using the gpu.types.GPUFrameBuffer.read_depth() function from the gpu module. No ...
Sandroid's user avatar
0 votes
1 answer
163 views

Using Blender on an Azure VM

I really need to do some editing on a 3D model with some animations, but my PC would never run it, so I opted to use an Azure VM to try to run blender and maybe render the animation on the machine ...
Vanortton's user avatar
2 votes
1 answer
93 views

Drawing a circle that faces towards the view with GPU/BGL?

Im trying to draw a circle using the GPU/BGL module that appears on a given certain 3D position (in my example, the cursor's location) and, when drawing, it points towards the current view. I'm using: ...
Ommadawn's user avatar
  • 668
0 votes
0 answers
46 views

Blender not open in my laptop

Blender ver 3.6.2 After downloading and installing the software, it does not started because it show the popup window. In this window it show the "the entry point not found ". Dll file like ...
Yuvi's user avatar
  • 1
4 votes
3 answers
415 views

How to draw a specific color with gpu shader

This is a bulid-in shader of gpu module to display a 2D rectangle in viewport, if you check the color of the rectangle via photoshop/MSpaint or use ...
X Y's user avatar
  • 6,023
0 votes
0 answers
36 views

Custom render pass

I'm looking to develop a post-render diagnostics overlay and am not quite sure how to go about it. I can add an opengl overlay to the viewport fine with the SpaceView3D draw_handler_add, but this of ...
Mr MinimalEffort's user avatar
1 vote
1 answer
1k views

Headless Blender on Cloud not using blend settings

Why does Blender headless not use blend settings? It works fine with X11 forwarding but just slow. When using VM.Standard.E2.1.Micro (Oracle Cloud AMD64/...
wjwrpoyob's user avatar
  • 123
1 vote
0 answers
214 views

Custom render engine - creating material previews with OpenGL?

I'm working on a custom render engine through a Python addon that uses the bgl module for most of its rendering. bl_use_preview ...
hayden0729's user avatar
1 vote
0 answers
615 views

Blender 3.4 won't run citing unsupported graphics card but 3.3 works

I have 3 computers I primarily run Blender on, 2 of which are giving me this error: ...
kodiakcreativity's user avatar
0 votes
1 answer
324 views

How to force draw_handler_add?

I have a draw function inspired from this answer: ...
cak3_lover's user avatar
0 votes
0 answers
76 views

How to directly store Blender File Images Externally?

I'm using this answer to generate images from view port but is there a way to directly externally store/generate this image? and by that I mean NOT having to manually save them through Image Editor
cak3_lover's user avatar
2 votes
1 answer
538 views

Drawing to multiple render targets using the GPU module

Is there a way to draw to multiple render targets at once using the Blender's GPU module? I am looking for something similar to glDrawBuffers in OpenGL. Say, for example, my fragment shader looks like ...
QuantumCoderQC's user avatar
0 votes
1 answer
209 views

How to get started with the code for drawing Blender’s user interface?

I’m interested in working with the drawing code responsible for the user interface in the Dope Sheet & Graph Editors (not the Python code for menus/panels, but rather the actual timeline, ...
Dr. Pontchartrain's user avatar
2 votes
0 answers
593 views

Dashed Lines GLSL Even Sizing

I'm working on a dashed line shader in a Blender add-on and my aim is to get all lines, regardless of length, to have the same sized dashes and dash spacing. GPU shaders are relatively new to me so I ...
Dan's user avatar
  • 83
0 votes
1 answer
766 views

How to get a list of faces with corresponding indices?

I am trying to get a list of faces that has each index of the 3 vertices that go with it. I thought about just doing it from scratch but they are kinda in random order. I am looking for a list that's ...
CloudlessStudio's user avatar
0 votes
2 answers
276 views

Changing lighting & color_type for OpenGL Render

When I render with bpy.ops.render.opengl, the shading appears to always be SOLID shading. If this is the case, how do I change the solid render's ...
Dr. Pontchartrain's user avatar
0 votes
0 answers
636 views

Blender 3.1 in a virtual machine with Ubuntu 20.04 doesn't start

When I try to run Blender it gives me this error: ...
manuersuper's user avatar
1 vote
0 answers
170 views

How can I make objects created with the GPU Module visible in the final render?

I used the code example for creating a triangle with custom shader from the official docs: ...
Squis's user avatar
  • 111
1 vote
1 answer
595 views

Is it possible to render in user perspective?

I notice that the user perspective and the camera perspective look different. (I have made sure that the camera view and the user view are from the same position and angle. Also, the camera is set to &...
LearnerAL's user avatar
0 votes
0 answers
110 views

Is there a way to render a scene to a video, much faster, using OpenGL instead of EEVEE, without blender unloading geometry?

It seems blender rendering is pretty slow because it doesn't try to do "real time" rendering, it aims at high CGI quality. Is there a way to configure the renderer to sacrifice quality as ...
jokoon's user avatar
  • 203
0 votes
0 answers
342 views

Blender not opening on old pc with Window 10 (64)

When I try to open the blender, it gives this warning: However, in the scan I see that there is the latest version of open GL installed: Will there be any way to fix the issue and get blender working?...
Stackchampu's user avatar
0 votes
0 answers
645 views

I'm having trouble with gizmo lines getting glicht: rotating, moving or scaling

System: Windows 10 64 bit CPU I5-3470 GPU GT 630 Processor and Graphics do not matter because the same thing happens on different Graphics and Processor I found a fix but on ubunto I have windows
KALER's user avatar
  • 1
0 votes
1 answer
2k views

Experiencing Lag With Blender

Issue I've experienced lag when viewing in the viewport window, selecting objects', and moving selected objects'. Attempted Solutions: Adding more computer RAM (previously 8gb, now 64gb) ...
rin black's user avatar
1 vote
0 answers
4k views

Blender Won't Open because it says I need OpenGL 3.3

I've recently wanted to get back into using blender for some fun art projects, but anytime I try and install the program and run it, I run into issues. The last time I used it was in December of 2020,...
Tyler Berkeley's user avatar
0 votes
0 answers
354 views

Rendering opengl image and then saving to a filepath

Need help solving how to render an image and then save to a filepath while in a loop. The following takes a photo and exports; however it isn't rendered. ...
Fano Fano's user avatar
2 votes
1 answer
4k views

RTX 3090: Unsupported Graphics Card or Driver - OpenGL 3.3 or higher recquired

I have 2x RTX 3090 and the drivers up to date, running on windows 10, I also have the latest version of blender. I get the following error when I try a render or try opening some menus in the ...
Hugo Bp's user avatar
  • 41

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