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sprite.glsl.js

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export const vertex = /* glsl */`
uniform float rotation;
uniform vec2 center;

#include <common>
#include <uv_pars_vertex>
#include <fog_pars_vertex>
#include <logdepthbuf_pars_vertex>
#include <clipping_planes_pars_vertex>

void main() {

	#include <uv_vertex>

	vec4 mvPosition = modelViewMatrix[ 3 ];

	vec2 scale = vec2( length( modelMatrix[ 0 ].xyz ), length( modelMatrix[ 1 ].xyz ) );

	#ifndef USE_SIZEATTENUATION

		bool isPerspective = isPerspectiveMatrix( projectionMatrix );

		if ( isPerspective ) scale *= - mvPosition.z;

	#endif

	vec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;

	vec2 rotatedPosition;
	rotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;
	rotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;

	mvPosition.xy += rotatedPosition;

	gl_Position = projectionMatrix * mvPosition;

	#include <logdepthbuf_vertex>
	#include <clipping_planes_vertex>
	#include <fog_vertex>

}
`;

export const fragment = /* glsl */`
uniform vec3 diffuse;
uniform float opacity;

#include <common>
#include <uv_pars_fragment>
#include <map_pars_fragment>
#include <alphamap_pars_fragment>
#include <alphatest_pars_fragment>
#include <alphahash_pars_fragment>
#include <fog_pars_fragment>
#include <logdepthbuf_pars_fragment>
#include <clipping_planes_pars_fragment>

void main() {

	vec4 diffuseColor = vec4( diffuse, opacity );
	#include <clipping_planes_fragment>

	vec3 outgoingLight = vec3( 0.0 );

	#include <logdepthbuf_fragment>
	#include <map_fragment>
	#include <alphamap_fragment>
	#include <alphatest_fragment>
	#include <alphahash_fragment>

	outgoingLight = diffuseColor.rgb;

	#include <opaque_fragment>
	#include <tonemapping_fragment>
	#include <colorspace_fragment>
	#include <fog_fragment>

}
`;