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using TIME in light shader enables uses_fragment_time · bb655856karroffel authored
The GLES3 shader compiler performs certain checks to enable or disable the usage of certain uniform variables (and with that the set-up of UBOs). If the `TIME` variable gets used inside the `vertex` function then the renderer knows that it has to insert that value into the UBO. The same applies to the `fragment` function. The `light` function gets executed inside the fragment shader for every light source that is relevant to the current pixel. If the `TIME` variable gets used in that function then it needs to be present in the fragment-UBO. The check for this was missing, so if a shader uses `TIME` inside `light` but not inside `fragment` then the uniform will not actually be set up.
bb655856
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