Julien Guertault's user avatar
Julien Guertault's user avatar
Julien Guertault's user avatar
Julien Guertault
  • Member for 8 years, 6 months
  • Last seen more than a month ago
23 votes
Accepted

Why do red, green, and blue make up all the colors?

20 votes
Accepted

Programmatically generating vertex normals

17 votes

How is Gaussian Blur Implemented?

16 votes
Accepted

Raytracing: why are the spheres in the image below appear stretched?

14 votes
Accepted

What is ambient lighting?

12 votes

How to Calculate Surface Normals for Generated Geometry

11 votes
Accepted

Why does checkerboard pattern on a computer screen appear with a yellowish tint?

11 votes
Accepted

OpenGL GLSL - Sobel Edge Detection Filter

11 votes
Accepted

How to modify Perlin (not simplex) noise to create continental like terrain generation

10 votes

Why do Vertex Buffer Objects improve performance?

9 votes
Accepted

Actual vs Perceived Brightness of RGB Colour

9 votes
Accepted

What methods/technologies to reduce required performance for virtual reality are there?

8 votes

How to properly combine the diffuse and specular terms?

7 votes

How can I raytrace a scene that does not fit into memory?

7 votes

How is Anti Aliasing Implemented in Ray Tracing?

6 votes
Accepted

How to generate OSX Flurry screensaver

6 votes
Accepted

The Process of Spherical Harmonics

6 votes

Why random monte carlo sampling instead of uniform sampling?

5 votes

Why shouldn't Bump, Normal and Displacement maps be gamma corrected?

5 votes

How to compensate low amount of rays reaching the light in a Path Tracer

5 votes

Path tracer not rendering shadows

5 votes

Should ideal specular multiply light colour with material colour?

4 votes
Accepted

Modern Screen Space Ambient Occlusion Techniques

4 votes

Sharing code between multiple GLSL shaders

4 votes

Will the gaussian kernels in this fragment shader be computed for every fragment?

4 votes

Transforming fragment-to-camera to tangent space for parallax occlusion mapping

4 votes

How does this app pull off fast, high radius HDR

4 votes

Errors on Compiling my first program on OpenGL on Ubuntu

4 votes
Accepted

Extract visible vertices from a 3D geometry model

3 votes

Constant screen-space-width rim shading