Created
July 1, 2023 04:44
-
-
Save definev/c9a5746869993e1087da79df4e9bdf0c to your computer and use it in GitHub Desktop.
Piet Mondrian painting.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // Author: Bui Dai Duong (@definev) | |
| // Title: Piet Mondrian | |
| #ifdef GL_ES | |
| precision mediump float; | |
| #endif | |
| uniform vec2 u_resolution; | |
| uniform vec2 u_mouse; | |
| uniform float u_time; | |
| vec3 draw_rectangle( | |
| vec2 st, | |
| vec2 pivot, | |
| float width, | |
| float height | |
| ) { | |
| vec2 bl = step(vec2(pivot), st); | |
| vec2 tr = step(vec2(1.0 - pivot - vec2(width, height)), 1. - st); | |
| return vec3(bl.x * bl.y * tr.x * tr.y); | |
| } | |
| void main() { | |
| vec2 st = gl_FragCoord.xy/u_resolution.xy; | |
| st.x *= u_resolution.x/u_resolution.y; | |
| vec3 color = vec3(0.); | |
| color = draw_rectangle(st, vec2(0.0), 0.2, 0.58); | |
| color += draw_rectangle(st, vec2(0.0, 0.6), 0.08, 0.19) * vec3(0.630,0.183,0.129); | |
| color += draw_rectangle(st, vec2(0.1, 0.6), 0.2-0.1, 0.19) * vec3(0.630,0.183,0.129); | |
| color += draw_rectangle(st, vec2(0.0, 0.81), 0.08, 0.19) * vec3(0.630,0.183,0.129); | |
| color += draw_rectangle(st, vec2(0.1, 0.81), 0.2-0.1, 0.19) * vec3(0.630,0.183,0.129); | |
| color += draw_rectangle(st, vec2(0.22, 0.81), 0.5, 0.19); | |
| color += draw_rectangle(st, vec2(0.74, 0.81), 0.18, 0.19); | |
| color += draw_rectangle(st, vec2(0.94, 0.81), 0.18, 0.19) * vec3(0.890,0.839,0.251); | |
| color += draw_rectangle(st, vec2(0.22, 0.81 - 0.21), 0.5, 0.19); | |
| color += draw_rectangle(st, vec2(0.74, 0.81 - 0.21), 0.18, 0.19); | |
| color += draw_rectangle(st, vec2(0.94, 0.81 - 0.21), 0.18, 0.19) * vec3(0.890,0.839,0.251); | |
| color += draw_rectangle(st, vec2(0.22, 0.1), 0.5, 0.48); | |
| color += draw_rectangle(st, vec2(0.74, 0.1), 0.18, 0.48); | |
| color += draw_rectangle(st, vec2(0.94, 0.1), 0.18, 0.48); | |
| color += draw_rectangle(st, vec2(0.22, 0.0), 0.5, 0.08); | |
| color += draw_rectangle(st, vec2(0.74, 0.0), 0.18, 0.08) * vec3(0.273,0.465,0.875); | |
| color += draw_rectangle(st, vec2(0.94, 0.0), 0.18, 0.08) * vec3(0.273,0.465,0.875); | |
| gl_FragColor = vec4(color,1.0); | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment