59 lines
1.6 KiB
GLSL
59 lines
1.6 KiB
GLSL
#version 440 core
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#include <constants.glsl>
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#define FIGURE_SHADER
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#define LIGHTING_TYPE LIGHTING_TYPE_REFLECTION
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#define LIGHTING_REFLECTION_KIND LIGHTING_REFLECTION_KIND_GLOSSY
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#define LIGHTING_TRANSPORT_MODE LIGHTING_TRANSPORT_MODE_IMPORTANCE
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#define LIGHTING_DISTRIBUTION_SCHEME LIGHTING_DISTRIBUTION_SCHEME_MICROFACET
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#define LIGHTING_DISTRIBUTION LIGHTING_DISTRIBUTION_BECKMANN
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#include <globals.glsl>
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#include <sky.glsl>
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layout(location = 0) in vec3 v_pos;
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layout(location = 1) in vec3 v_norm;
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layout (std140, set = 2, binding = 0)
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uniform u_locals {
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vec4 pos_a;
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vec4 pos_b;
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float rope_length;
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};
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layout(location = 0) out vec3 f_pos;
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layout(location = 1) out vec3 f_norm;
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layout(location = 2) out vec3 m_pos;
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void main() {
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m_pos = v_pos;
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vec3 rz = normalize(pos_b.xyz - pos_a.xyz);
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vec3 rx = normalize(cross(vec3(0, 0, 1), rz));
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vec3 ry = normalize(cross(rz, rx));
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float dist = distance(pos_a.xyz, pos_b.xyz);
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vec3 pos = pos_a.xyz + (rx * v_pos.x + ry * v_pos.y) * 0.1 + rz * v_pos.z * dist;
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vec2 ideal_wind_sway = wind_vel * vec2(
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wind_wave(pos.y * 1.5, 1.9, wind_vel.x, wind_vel.y),
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wind_wave(pos.x * 1.5, 2.1, wind_vel.y, wind_vel.x)
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);
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float dip = (1 - pow(abs(v_pos.z - 0.5) * 2.0, 2)) * max(rope_length - dist, 0.0);
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pos += vec3(ideal_wind_sway * min(pow(dip, 2), 0.005), -0.5 * dip);
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f_pos = pos + focus_pos.xyz;
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#ifdef EXPERIMENTAL_CURVEDWORLD
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f_pos.z -= pow(distance(f_pos.xy + focus_off.xy, focus_pos.xy + focus_off.xy) * 0.05, 2);
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#endif
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f_norm = rx * v_norm.x + ry * v_norm.y + rz * v_norm.z;
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gl_Position = all_mat * vec4(f_pos, 1);
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}
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