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#version 300 es
precision mediump float;
/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
in vec4 v_color;
in float v_rotation;
uniform sampler2D u_texture;
out vec4 out_color;
void main() {
vec2 rotated = vec2(
cos(v_rotation) * (gl_PointCoord.x - 0.5) + sin(v_rotation) * (gl_PointCoord.y - 0.5) + 0.5,
cos(v_rotation) * (gl_PointCoord.y - 0.5) - sin(v_rotation) * (gl_PointCoord.x - 0.5) + 0.5
);
vec4 snowflake = texture(u_texture, rotated);
out_color = vec4(snowflake.rgb * v_color.xyz, snowflake.a * v_color.a);
}
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