declare const _default: "\n#ifdef PIXELSNAP\n    uniform uScreenSize: vec4f;\n#endif\n\n#ifdef SCREENSPACE\n    uniform projectionFlipY: f32;\n#endif\n\nfn evalWorldPosition(vertexPosition: vec3f, modelMatrix: mat4x4f) -> vec4f {\n\n    var localPos: vec3f = getLocalPosition(vertexPosition);\n\n    #ifdef NINESLICED\n        // outer and inner vertices are at the same position, scale both\n        var localPosXZ: vec2f = localPos.xz;\n        localPosXZ = localPosXZ * uniform.outerScale;\n\n        // offset inner vertices inside\n        // (original vertices must be in [-1;1] range)\n        let positiveUnitOffset: vec2f = clamp(vertexPosition.xz, vec2f(0.0), vec2f(1.0));\n        let negativeUnitOffset: vec2f = clamp(-vertexPosition.xz, vec2f(0.0), vec2f(1.0));\n        localPosXZ = localPosXZ + (-positiveUnitOffset * uniform.innerOffset.xy + negativeUnitOffset * uniform.innerOffset.zw) * vertex_texCoord0.xy;\n\n        dTiledUvGlobal = (localPosXZ - uniform.outerScale + uniform.innerOffset.xy) * -0.5 + 1.0; // uv = local pos - inner corner\n\n        localPosXZ = localPosXZ * -0.5;\n        localPos = vec3f(localPosXZ.x, localPosXZ.y, localPos.y);\n    #endif\n\n    var posW: vec4f = modelMatrix * vec4f(localPos, 1.0);\n\n    #ifdef SCREENSPACE\n        posW = vec4f(posW.xy, 0.0, 1.0);\n    #endif\n\n    return posW;\n}\n\nfn getPosition() -> vec4f {\n\n    dModelMatrix = getModelMatrix();\n\n    let posW: vec4f = evalWorldPosition(vertex_position.xyz, dModelMatrix);\n    dPositionW = posW.xyz;\n\n    var screenPos: vec4f;\n    #ifdef UV1LAYOUT\n        screenPos = vec4f(vertex_texCoord1.xy * 2.0 - 1.0, 0.5, 1.0);\n        screenPos.y *= -1.0;\n    #else\n        #ifdef SCREENSPACE\n            screenPos = posW;\n            screenPos.y *= uniform.projectionFlipY;\n        #else\n            screenPos = uniform.matrix_viewProjection * posW;\n        #endif\n\n        #ifdef PIXELSNAP\n            // snap vertex to a pixel boundary\n            screenPos.xy = (screenPos.xy * 0.5) + 0.5;\n            screenPos.xy *= uniforms.uScreenSize.xy;\n            screenPos.xy = floor(screenPos.xy);\n            screenPos.xy *= uniforms.uScreenSize.zw;\n            screenPos.xy = (screenPos.xy * 2.0) - 1.0;\n        #endif\n    #endif\n\n    return screenPos;\n}\n\nfn getWorldPosition() -> vec3f {\n    return dPositionW;\n}\n";
export default _default;