ERROR: Failed to compile shader 'shaders/glsl/water_high.fs': 0:260(19): error: `refColor' undeclared 0:260(19): error: operands to arithmetic operators must be numeric 0:260(33): error: `refColor' undeclared 0:260(15): error: no matching function for call to `mix(error, error, float)'; candidates are: 0:260(15): error: vec3 mix(vec3, vec3, float) 0:260(15): error: float mix(float, float, float) 0:260(15): error: float mix(float, float, float) 0:260(15): error: vec2 mix(vec2, vec2, float) 0:260(15): error: vec3 mix(vec3, vec3, float) 0:260(15): error: vec4 mix(vec4, vec4, float) 0:260(15): error: vec2 mix(vec2, vec2, vec2) 0:260(15): error: vec3 mix(vec3, vec3, vec3) 0:260(15): error: vec4 mix(vec4, vec4, vec4) 0:331(46): error: `alphaCoeff' undeclared 0:331(19): error: operands to arithmetic operators must be numeric