Community Digest

Top new questions this week:

Why is there a straight line between my bezier paths?

I have created a bezier curve tool and each time I draw a bezier curve segment I get a straight line between each mouse click. I don't understand why this is happening and was wondering if someone ...

opengl c++ bezier-curve glut line  
asked by Arjan Singh Score of 1
answered by luser droog Score of 1

Is orthonormal tangent space an industry standard for use of tangent space normal maps?

I'm investigating software that uses the unnormalized, interpolated vertex normal for creating its tangent space, creating a scaled tangent space that depends on concavity/convexity of the mesh. It ...

normal-mapping  
asked by user2206636 Score of 1
answered by pmw1234 Score of 2

Defining the proper sdf for this structure

I am making a procedural sdf (just a bunch of cubes) based of an image. The idea is very simple. We have a stencil image: Each texel in the image corresponds to a 3D cube. So to ray trace what I am ...

raytracing glsl c++ mathematics sdf  
asked by Makogan Score of 1
answered by Makogan Score of 2

Greatest hits from previous weeks:

What is an OpenGL VAO in a nutshell?

Before I get downvoted. I am not asking how to use them, I know how to use them. I am trying to understand what they are. For example, an array is actually a contiguous section of memory, a linked ...

opengl vertex-buffer-object buffers  
asked by Makogan Score of 4
answered by ratchet freak Score of 4

What are Spherical Harmonics & Light Probes?

What are Spherical Harmonics & Light Probes? How useful are they in computer graphics? What exactly do they do? I've heard the word spherical harmonics & Light Probes everywhere, from siggraph ...

lighting physically-based spherical-harmonics  
asked by Arjan Singh Score of 17
answered by JarkkoL Score of 14

GL_STATIC_DRAW vs GL_DYNAMIC_DRAW vs GL_STREAM_DRAW: does it matter?

In OpenGL the buffer object functions (glBufferData, glBufferSubData, and probably a few others) have a parameter ...

opengl optimisation vertex-buffer-object  
asked by Julien Guertault Score of 15
answered by Dan Hulme Score of 12

What does "makeContextCurrent" do exactly?

I am pretty confused about that function. GLFW Context reference says as follow: This function makes the OpenGL or OpenGL ES context of the specified window current on the calling thread. A ...

opengl c++  
asked by Adrian Score of 16
answered by user1118321 Score of 27

How to convert Euler angles to Quaternions and get the same Euler angles back from Quaternions?

I am rotating n 3D shape using Euler angles in the order of XYZ meaning that the object is first rotated along the X axis, then Y...

3d mathematics geometry  
asked by Amir Score of 4
answered by Amir Score of 1

What are Metal and Vulkan?

I keep coming across the terms 'Metal' and 'Vulkan' on this site. Guessing this to be some CG software, I'm interested to know what these are exactly and what the intended and most common usage is. A ...

vulkan metal  
asked by MisterGeeky Score of 11
answered by Nicol Bolas Score of 24

OpenCL doesn't detect GPU

I installed AMD APP SDK and here my problem. The OpenCL samples do not detect the GPU. HelloWorld give me this: ...

gpu opencl  
asked by Thomas BRAUD Score of 6
answered by Tyler Parker Score of 3
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