playcanvas/build/playcanvas.dbg/src/scene/shader-lib/glsl/chunks/lit/vert/uv0.js

PlayCanvas WebGL game engine

var uv0VS = /* glsl */ `
#ifdef NINESLICED
    vec2 getUv0() {
        vec2 uv = vertex_position.xz;

        // offset inner vertices inside
        // (original vertices must be in [-1;1] range)
        vec2 positiveUnitOffset = clamp(vertex_position.xz, vec2(0.0), vec2(1.0));
        vec2 negativeUnitOffset = clamp(-vertex_position.xz, vec2(0.0), vec2(1.0));
        uv += (-positiveUnitOffset * innerOffset.xy + negativeUnitOffset * innerOffset.zw) * vertex_texCoord0.xy;

        uv = uv * -0.5 + 0.5;
        uv = uv * atlasRect.zw + atlasRect.xy;

        vMask = vertex_texCoord0.xy;

        return uv;
    }
#else
    vec2 getUv0() {
        return vertex_texCoord0;
    }
#endif
`;

export { uv0VS as default };