/**
 * 텍스처 오브젝트 쉐이더 (image, video, sprite, text)
 * uFlipY: 1.0이면 Y축 반전 (Canvas 텍스처 업로드 시 필요)
 * uUVOffset, uUVScale: 스프라이트 시트 크로핑용
 */
export declare const textureVertex = "\n  attribute vec2 position;\n  attribute vec2 uv;\n  uniform mat4 uModelMatrix;\n  uniform mat4 uViewMatrix;\n  uniform mat4 uProjectionMatrix;\n  uniform float uFlipY;\n  uniform vec2 uUVOffset;\n  uniform vec2 uUVScale;\n  varying vec2 vUV;\n\n  void main() {\n    float y = uFlipY > 0.5 ? 1.0 - uv.y : uv.y;\n    vUV = uUVOffset + vec2(uv.x, y) * uUVScale;\n    gl_Position = uProjectionMatrix * uViewMatrix * uModelMatrix * vec4(position, 0.0, 1.0);\n  }\n";
export declare const textureFragment = "\n  precision highp float;\n  uniform sampler2D uTexture;\n  uniform float uOpacity;\n  varying vec2 vUV;\n\n  void main() {\n    vec4 color = texture2D(uTexture, vUV);\n    gl_FragColor = vec4(color.rgb * uOpacity, color.a * uOpacity);\n  }\n";