OGRE_NATIVE_GLSL_VERSION_DIRECTIVE
#include <OgreUnifiedShader.h>
// SAMPLER2D(noiseMap, 0);
SAMPLER2D(reflectMap, 0);
SAMPLER2D(refractMap, 1);
OGRE_UNIFORMS(
uniform vec4 viewportSize;
uniform f32vec4 cameraPosition;
)
MAIN_PARAMETERS
IN(highp vec4 projectionCoord, TEXCOORD4)
IN(f32vec3 positionWS, TEXCOORD7)
MAIN_DECLARATION
{
	vec2 screenUV = gl_FragCoord.xy / viewportSize.xy;
	screenUV.y = 1.0 - screenUV.y * 0.6 - 0.2;
	// vec2 final = projectionCoord.xy / projectionCoord.w;
	float depth = saturate(length(positionWS - cameraPosition.xyz) * 0.01);
	vec4 reflectionColour = texture2D(reflectMap, screenUV);
	vec4 refractionColour = texture2D(refractMap, screenUV);
	vec4 result = mix(mix(reflectionColour, refractionColour, 0.5), vec4(0.0, 1.0, 1.0, 1.0), depth);
	result.a = 1.0;
	gl_FragColor = result;
}