Built-in functions | Max - Shader Learning

Max

Using the max and step functions, paint only those pixels whose normalized x-coordinate is less than 0.25 or greater than 0.75.

Requirements

The shader should avoid using branching or conditional statements in its code, and instead rely on the step and max functions to determine the color of each pixel.

Previous Next

fragment.glsl

uniform vec2 iResolution;

void main() {

// Normalized pixel coordinates (from 0 to 1)

vec2 uv = gl_FragCoord.xy / iResolution.xy;

vec3 color = vec3(1.0, 0.3, 0.3);

gl_FragColor = vec4(color, 1.0);

}

Expected

Output