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.
265
questions
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 ...
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.
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
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 ...
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 ...
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 ...
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:
...
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 ...
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 ...
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 ...
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/...
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 ...
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:
...
0
votes
1
answer
324
views
How to force draw_handler_add?
I have a draw function inspired from this answer:
...
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
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 ...
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, ...
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 ...
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 ...
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 ...
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:
...
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:
...
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 &...
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 ...
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?...
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
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)
...
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,...
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.
...
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 ...