Perspective Projection in GLSL [Shaders Monthly #2]

Показать описание

In Episode #2 of Shaders Monthly, we talk about perspective projection and how it is applied in a shader. The GLSL shader implementation is based on the following example from episode #1:

Here are links to the modified shader code that performs perspective projection:

00:00 Introduction
00:15 Pinhole Camera
01:40 Perspective Projection
05:02 Euclidean and Projective Space
06:25 OpenGL Pipeline
10:08 gluPerspective
12:16 Perspective Projection in OpenGL
14:38 GLSL Shader Implementation

Music: Left U Into - Otis McDonald (YouTube Audio Library)

GSN Composer

Рекомендации по теме

Комментарии

Hey, amazing presentation! It goes into all the details that other tutorials skip. Also must have taken considerable effort to make, so eternal thanks for that! I have a question about the near plane: At 2:20 you say the size of the image plane is fixed and we compute the image plane distance. But at 18:50 you can freely change the near plane. Which one is the desired behaviour? I can imagine issues when changing the near-plane e.g. to 0.

SirCobraXI

gsn composer looks like amazing tool for studying CG concepts.

Septem

Perspective Projection in GLSL [Shaders Monthly #2]

Perspective Projection in GLSL [Shaders Monthly #2]

Perspective Projection - Part 1 // OpenGL Tutorial #11

[Episode 24] Projection Matrix and glm::perspective

OpenGL Perspective Projection

OpenGL Perspective Projection

Perspective Projection - Part 2 // OpenGL Tutorial #12

Camera/View Space // OpenGL Tutorial #13

OpenGL Ep8 | Projecting Your Shader Effect Anywhere [projection matrices]

Online Graphics Viewing: gluPerspective

WebGL Study Note 04: 3D Perspective 01

Comp-Phys | 3D Projection – Perspective

3d WebGL Perspective Projection Matrix ProgrammingTIL #115 WebGL tutorial video screencast 0058

OpenGL Depth Value Range

Computer Graphics Lab-4 | Multiple Shader, Perspective Projection, Camera Transformation

Fixing Perspective Issues in GLFW3 for 3D Graphics Development

Introduction to shaders: Learn the basics!

How Shaders Work (in OpenGL) | How to Code Minecraft Ep. 3

Udemy (English) : The Extensive WebGL Series Part 1- Lec-48 -Perspective Matrix Derivation I

[Episode 23] From Local to World Space (Model Matrix Transformation)

How to Grasp Vertex Shader (GLSL) processing in 3D Graphics

Perspective Projection using OpenGL

Using Ray Casting To Move 3D Objects // OpenGL Tutorial #32

11. How Sine and Cosine work in GLSL - Shader Course

WebGL 2: Cameras & Perspective (Part 1)