55 lines
1.3 KiB
GLSL
55 lines
1.3 KiB
GLSL
#version 450
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#ifdef GL_ES
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precision mediump float;
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#endif
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#include "../compiled.glsl"
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uniform sampler2D tex;
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uniform vec3 eye;
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uniform vec3 eyeLook;
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in vec2 texCoord;
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in vec3 viewRay;
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out vec4 outColor;
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vec2 octahedronWrap(vec2 v) {
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return (1.0 - abs(v.yx)) * (vec2(v.x >= 0.0 ? 1.0 : -1.0, v.y >= 0.0 ? 1.0 : -1.0));
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}
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vec3 getPos(float depth) {
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vec3 vray = normalize(viewRay);
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const float projectionA = cameraPlane.y / (cameraPlane.y - cameraPlane.x);
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const float projectionB = (-cameraPlane.y * cameraPlane.x) / (cameraPlane.y - cameraPlane.x);
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// float linearDepth = projectionB / (depth - projectionA);
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float linearDepth = projectionB / (depth * 0.5 + 0.5 - projectionA);
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float viewZDist = dot(eyeLook, vray);
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vec3 wposition = eye + vray * (linearDepth / viewZDist);
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return wposition;
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}
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vec2 unpackFloat(float f) {
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float index = floor(f) / 1000.0;
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float alpha = fract(f);
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return vec2(index, alpha);
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}
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void main() {
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// Normals
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vec4 col = texture(tex, texCoord);
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vec2 enc = col.rg;
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vec3 n;
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n.z = 1.0 - abs(enc.x) - abs(enc.y);
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n.xy = n.z >= 0.0 ? enc.xy : octahedronWrap(enc.xy);
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n = normalize(n);
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outColor = vec4(n * 0.5 + 0.5, 1.0);
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// vec3 p = getPos(depth);
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// vec3 baseColor = g1.rgb;
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// vec2 metrough = unpackFloat(g1.a);
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// float metalness = metrough.x;
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// float roughness = metrough.y;
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}
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