33 lines
1.0 KiB
GLSL
33 lines
1.0 KiB
GLSL
OGRE_NATIVE_GLSL_VERSION_DIRECTIVE
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#include <OgreUnifiedShader.h>
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// SAMPLER2D(noiseMap, 0);
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SAMPLER2D(reflectMap, 0);
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// SAMPLER2D(refractMap, 1);
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OGRE_UNIFORMS(
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uniform float renderTargetFlipping;
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uniform vec4 viewportSize;
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uniform f32vec4 cameraPosition;
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)
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MAIN_PARAMETERS
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IN(f32vec3 positionWS, TEXCOORD0)
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IN(f32vec3 vnormal, TEXCOORD1)
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MAIN_DECLARATION
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{
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float flip = -renderTargetFlipping;
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vec2 screenUV = gl_FragCoord.xy / viewportSize.xy;
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#if !defined(OGRE_HLSL) && !defined(VULKAN)
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screenUV.y = 1.0 - screenUV.y * 0.6 - 0.2;
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#else
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screenUV.y = screenUV.y * 0.6 + 0.2;
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#endif
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float depth = saturate(length(positionWS - cameraPosition.xyz) * 0.01);
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vec4 reflectionColour = texture2D(reflectMap, screenUV * vec2(0.5, 1.0));
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vec4 refractionColour = texture2D(reflectMap, screenUV * vec2(0.5, 1.0) + vec2(0.5, 0.0));
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vec4 result = mix(mix(reflectionColour, refractionColour, 0.5), vec4(0.0, 1.0, 1.0, 1.0), depth);
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float mul = dot(vec3(0.0, 1.0, 0.0), vnormal);
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result = result * mul;
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result.a = 1.0;
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gl_FragColor = result;
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}
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