Fix window resolution scaling #56
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Signed-off-by: Cosmin Popa <cosmin7popa@gmail.com>
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This PR enables fractional scaling of the framebuffer size when reading the resolution from WindowObject.
In GLM,
operator*=(glm::ivec2 v, U scalar)castsscalartointbefore multiplying the coordinates ofvbyscalar, so the scaling factor ends up truncated. The solution is simply to convert the resolution tovec2and back.Also, resolution should be divided, as opposed to multiplied, by
props.scaleFactor, sinceprops.scaleFactorisframeBufferWidth (a.k.a. resolution.x) / width.