TheoTown

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float step(float x, float edge) {
	return (x < edge) ? 0.0 : 1.0;
}

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float fract(float x) {
	return (x - floor(x));
}

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//@param A Vector3
//@param B Vector3
//@param a Alpha
//@return Vector3
vec3 mix(vec3 A, vec3 B, float a) {
	return vec3(A * (1.0 - a) + B * a);
}

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//@param base Vector3 background color
//@param blend Vector3 foreground color
//@return Vector3
vec3 overlay(vec3 base, vec3 blend) {
    return vec3(
         base.r < 0.5 ? (2.0 * base.r * blend.r) : (1.0 - 2.0 * (1.0 - base.r) * (1.0 - blend.r)),
         base.g < 0.5 ? (2.0 * base.g * blend.g) : (1.0 - 2.0 * (1.0 - base.g) * (1.0 - blend.g)),
         base.b < 0.5 ? (2.0 * base.b * blend.b) : (1.0 - 2.0 * (1.0 - base.b) * (1.0 - blend.b))
    );
}

Code: Select all    Reset

local w,  h = Drawing.getSize() 
Drawing.setUniform('Resolution',  (w + .0),  (h + .0))  -- we need to ensure that our values are in float format

...

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... 
uniform vec2 Resolution; //Drawing.getSize()  returns 2 values so our uniform would be vec2
... 

void main()  {
    // use our uniform as example: 
    // Resolution.x = screen width or Resources.r
    // Resolution.y = screen height or Resolution.g
    if (Resolution.x >= 10.0 || Resolution.y <= 10.0)  {
        //your code
    }
}