1_0_lerp

Code 1.1, Figure 1.2:

1_0_lerp.frag

#version 300 es precision highp float; out vec4 fragColor; uniform vec2 u_resolution; void main(){ vec2 pos = gl_FragCoord.xy / u_resolution.xy; vec3 RED = vec3(1.0, 0.0, 0.0); vec3 BLUE = vec3(0.0, 0.0, 1.0); vec3 col = mix(RED, BLUE, pos.x); fragColor = vec4(col, 1.0); }

#version 300 es
precision highp float;
out vec4 fragColor;
uniform vec2 u_resolution;

void main(){
  vec2 pos = gl_FragCoord.xy / u_resolution.xy;
  vec3 RED = vec3(1.0, 0.0, 0.0);
  vec3 BLUE = vec3(0.0, 0.0, 1.0);
  vec3 col = mix(RED, BLUE, pos.x);
  fragColor = vec4(col, 1.0);
}