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background.glsl.js

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export const vertex = /* glsl */`
varying vec2 vUv;
uniform mat3 uvTransform;

void main() {

	vUv = ( uvTransform * vec3( uv, 1 ) ).xy;

	gl_Position = vec4( position.xy, 1.0, 1.0 );

}
`;

export const fragment = /* glsl */`
uniform sampler2D t2D;
uniform float backgroundIntensity;

varying vec2 vUv;

void main() {

	vec4 texColor = texture2D( t2D, vUv );

	texColor.rgb *= backgroundIntensity;

	gl_FragColor = texColor;

	#include <tonemapping_fragment>
	#include <encodings_fragment>

}
`;