72 lines
2.2 KiB
Plaintext
72 lines
2.2 KiB
Plaintext
shader_type spatial;
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render_mode world_vertex_coords;
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uniform vec3 color = vec3(0.1, 0.4, 0.8);
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uniform float opacity = 0.95;
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uniform float foamHeight = 0.2;
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uniform float speed = 1.0;
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uniform sampler2D foamTex;
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uniform float amplitude = 0.2;
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uniform float frequency = 1.0;
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uniform int waveCount = 5;
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uniform float amplitudeScaleFactor = 0.82;
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uniform float frequencyScaleFactor = 1.18;
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uniform float dirs[200];
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//uniform sampler2D foam;
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uniform sampler2D depth: hint_depth_texture;
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varying float yOffset;
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float calcHeight(float x, float y){
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float amp = 1.0;
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float freq = 1.0;
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float offset = 0.0;
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for (int i = 0; i < waveCount; i++){
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offset += amplitude * amp * pow(E, sin(frequency * freq * (speed * TIME + (dirs[2 * i] * x) + (dirs[2 * i + 1] * y))));
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amp *= amplitudeScaleFactor;
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freq *= frequencyScaleFactor;
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}
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return offset;
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}
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void vertex() {
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yOffset = VERTEX.y;
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vec3 b = vec3(VERTEX.x + 0.01, VERTEX.y + calcHeight(VERTEX.x + 0.01, VERTEX.z), VERTEX.z);
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vec3 c = vec3(VERTEX.x, VERTEX.y + calcHeight(VERTEX.x, VERTEX.z + 0.01), VERTEX.z + 0.01);
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VERTEX.y += calcHeight(VERTEX.x, VERTEX.z);
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NORMAL = normalize(cross(c - VERTEX, b - VERTEX));
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yOffset += VERTEX.y;
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}
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void fragment() {
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ALBEDO = color * clamp(yOffset, 0.2, 11.0);
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//vec4 foamLevel = texture(foam, UV);
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//ALBEDO += vec3(foamLevel.r, foamLevel.r, foamLevel.r);
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//SPECULAR = 1.0;
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float strength = yOffset * texture(foamTex, UV).r;
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if (strength >= foamHeight) ALBEDO = ALBEDO + vec3(1, 1, 1) * (strength + foamHeight - yOffset / 2.0);
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ALPHA = opacity;
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float dep = texture(depth, SCREEN_UV).x;
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vec3 ndc = vec3(SCREEN_UV * 2.0 - 1.0, dep);
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vec4 view = INV_PROJECTION_MATRIX * vec4(ndc, 1.0);
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view.xyz /= view.w;
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float linear_depth = -view.z;
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float object_depth = FRAGCOORD.z;
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vec3 object_ndc = vec3(SCREEN_UV * 2.0 - 1.0, object_depth);
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vec4 object_view = INV_PROJECTION_MATRIX * vec4(object_ndc, 1.0);
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object_view.xyz /= object_view.w;
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float linear_object_depth = -object_view.z;
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if (linear_depth - linear_object_depth <= 0.7){
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discard;
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//ALPHA = 0.9 * clamp(linear_depth - linear_object_depth - 0.7, 0.0, 1.0);
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}
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}
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//void light() {
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// Called for every pixel for every light affecting the material.
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// Uncomment to replace the default light processing function with this one.
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//}
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