@maptalks/rollup-plugin-glsl-minify

rollup-plugin-glsl-minify

A rollup plugin to minify glsl on the fly.

Known issues to avoid

• property confliction albedo conflicts with materialUniforms.albedo

    vec4 albedo = vec4(1.0);
    materialUniforms.albedo *= albedo.rgb;

• variable name in vec4

uniform vec2 texSize;

void main() {
	vec2 invSize = 1.0 / texSize;
	//vec4(invSize, invSize); will be transformed to vec4(a)
	vec2 uvOffset = vec4(1.0, 0.0, 0.0, 1.0) * vec4(invSize, invSize);
	gl_FragColor = uvOffset;
}

• built-in name conflicts (内置函数名不能用于变量名)

  • distance

• 变量名不能太简单，例如单字母，会与混淆生成的变量名冲突