23 lines
481 B
GLSL
23 lines
481 B
GLSL
#version 330 core
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#define AIR_IOR 1.0
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#define GLASS_IOR 1.52
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in VS_OUT {
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vec3 vert_normal;
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vec3 frag_position;
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vec2 uv_coords;
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} fs_in;
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uniform vec3 camera_position;
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uniform samplerCube cubemap;
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out vec4 color;
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void main() {
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vec3 view_direction = normalize(fs_in.frag_position - camera_position);
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vec3 refract_direction = refract(view_direction, normalize(fs_in.vert_normal), AIR_IOR / GLASS_IOR);
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color = vec4(texture(cubemap, refract_direction).rgb, 1.0);
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}
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