export declare const wboit_params = "\n#if defined(dRenderVariant_colorWboit)\n    #if !defined(dRenderMode_volume) && !defined(dRenderMode_isosurface)\n        uniform sampler2D tDepth;\n        uniform vec2 uDrawingBufferSize;\n\n        float getDepth(const in vec2 coords) {\n            // always packed due to merged depth from primitives and volumes\n            return unpackRGBAToDepth(texture2D(tDepth, coords));\n        }\n    #endif\n#endif\n\nuniform bool uRenderWboit;\n\nfloat calcDepth(const in vec3 pos) {\n    vec2 clipZW = pos.z * uProjection[2].zw + uProjection[3].zw;\n    return 0.5 + 0.5 * clipZW.x / clipZW.y;\n}\n";