第 6 课：Vector Math

实现：只是加法，过

实现

void main() {
  vec4 blueChannel = vec4(0.0, 0.0, 0.75, 0.0);
  vec4 redChannel = vec4(0.5, 0.0, 0.0, 0.0);
  vec4 alphaChannel = vec4(0.0, 0.0, 0.0, 1.0);

  vec4 sum = blueChannel + redChannel + alphaChannel;

  gl_FragColor = sum;
}

复盘笔记

• 只是加法，过