59 lines
No EOL
2.5 KiB
Text
59 lines
No EOL
2.5 KiB
Text
shader_type spatial;
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render_mode cull_disabled, diffuse_toon, specular_schlick_ggx;
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// Nice Shader by @_Malido ^^
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uniform vec3 top_color: source_color;
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uniform vec3 bottom_color: source_color;
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uniform float ambient_occlusion_factor: hint_range(0.0, 1.0, 0.01) = 0.3;
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uniform float specular_strength: hint_range(0.0, 1.0, 0.01) = 0.4;
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uniform float player_displacement_strength: hint_range(0.0, 1.0, 0.01) = 0.4;
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uniform float player_displacement_size: hint_range(0.0, 2.0, 0.01) = 1.0;
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global uniform vec3 wind_direction; // Use a negative y component to give it an extra touch (For displacement effect and noise scroll direction)
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global uniform float wind_strength;
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uniform sampler2D wind_noise; // Periln FBM Noise looks Best
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global uniform float wind_noise_size; // high values dont work well
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global uniform float wind_noise_speed;
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// Instance the Player Position through a GDScript in the _physics_process
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global uniform vec3 player_position;
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void vertex() {
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vec3 world_position = (MODEL_MATRIX * vec4(VERTEX, 1.0)).xyz;
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vec3 wind_texture = texture(wind_noise, world_position.xz * wind_noise_size + normalize(-wind_direction.xz) * (TIME + UV.y / 2.5) * wind_noise_speed).rgb;
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vec3 wind_vector = (vec4(wind_texture * normalize(wind_direction) * wind_strength, 0.0) * MODEL_MATRIX).xyz;
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float player_height = smoothstep(1.0, 0.0, length(player_position.y - world_position.y + 0.3));
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vec3 push_direction = vec3(world_position - player_position) * vec3(1 , -0.3 ,1);
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float player_position_factor = smoothstep(player_displacement_size, 0.0, length(push_direction));
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vec3 player_push_vector = (vec4(normalize(push_direction), 0.0) * MODEL_MATRIX).xyz;
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// Apply Player Position displacement
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VERTEX += player_push_vector * (1.0 - UV.y) * player_position_factor * player_displacement_strength * player_height;
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// Apply Wind displacement linearly
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VERTEX += wind_vector * (1.0 - UV.y) * (1.0 - player_position_factor * 0.7);
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// A new normal correction, which aligns the normals of the mesh facing upwards no matter the original direction.
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NORMAL = vec3(0.0, 1.0, 0.0);
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}
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void fragment() {
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vec3 color = mix(bottom_color, top_color, 1.0 - UV.y);
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// Add fake ambient occlusion by darkening the base of the mesh
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float ao_fallof = pow(UV.y, 5.0);
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vec3 ao_color = bottom_color * (1.0 - ambient_occlusion_factor);
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ALBEDO = mix(color, ao_color, ao_fallof);
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ROUGHNESS = 0.4;
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// Increase the Specular with Grass Height
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SPECULAR *= (1.0 - UV.y) * specular_strength;
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// Just removing some funny shading
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if (!FRONT_FACING) {
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NORMAL = -NORMAL;
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}
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} |