File: customsimpletexturescreen.frag

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qt6-quick3d 6.8.2-5
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VARYING vec2 texcoord;

void MAIN()

{
    BASE_COLOR = texture(tex1, texcoord);
    vec2 screencoord = texcoord;
    // the tex coords from the rectangle (or cube etc.) are almost suitable,
    // except that on non-GL we need to flip them
    if (FRAMEBUFFER_Y_UP < 0.0)
        screencoord.y = 1.0 - screencoord.y;
#if QSHADER_VIEW_COUNT >= 2
    BASE_COLOR *= texture(SCREEN_TEXTURE, vec3(screencoord, VIEW_INDEX));
#else
    BASE_COLOR *= texture(SCREEN_TEXTURE, screencoord);
#endif
}