#version 100
precision highp float;
vec4 texture2D (sampler2D sampler, vec2 coord, float bias);
vec4 texture2DProj (sampler2D sampler, vec3 coord, float bias);
vec4 texture2DProj (sampler2D sampler, vec4 coord, float bias);
vec4 textureCube (samplerCube sampler, vec3 coord, float bias);