equirect_frag top-level property
Implementation
String equirect_frag = """
uniform sampler2D tEquirect;
varying vec3 vWorldDirection;
#include <common>
void main() {
vec3 direction = normalize( vWorldDirection );
vec2 sampleUV = equirectUv( direction );
gl_FragColor = texture2D( tEquirect, sampleUV );
#include <tonemapping_fragment>
#include <encodings_fragment>
}
""";