47 lines
1.6 KiB
Plaintext
47 lines
1.6 KiB
Plaintext
[gd_resource type="ShaderMaterial" load_steps=4 format=2]
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[ext_resource path="res://Resources/gas_planet_flowmap.png" type="Texture" id=1]
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[ext_resource path="res://Resources/gas_planet_base.png" type="Texture" id=2]
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[sub_resource type="Shader" id=1]
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resource_local_to_scene = true
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code = "shader_type spatial;
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uniform sampler2D base_texture: hint_albedo;
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uniform sampler2D flowmap;
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uniform vec4 color: hint_color;
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uniform float flow_speed = 0.1;
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uniform float flow_intensity = 0.1;
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void fragment(){
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// Flow
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vec2 flow = texture(flowmap, UV).xy;
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flow = (flow - 0.5) * 2.0;
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// We use two phases which are exactly halfway offset from one another, and we blend between those.
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// That way, the animation seems to go on infinitely (similar to a Shepard tone)
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float time_phase_1 = fract(TIME * flow_speed);
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float time_phase_2 = fract(time_phase_1 + 0.5);
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float flow_mix = abs((time_phase_1 - 0.5) * 2.0);
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// Read the color values based on the offsets from the flowmap samples and mix them
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vec3 base_tex_1 = texture(base_texture, UV + (flow * time_phase_1 * flow_intensity)).xyz;
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vec3 base_tex_2 = texture(base_texture, UV + (flow * time_phase_2 * flow_intensity)).xyz;
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vec3 base_tex_mix = mix(base_tex_1, base_tex_2, flow_mix);
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// Apply the custom color scaled by that previous greyscale sample
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vec3 final_color = (0.05 + base_tex_mix.x * 0.95) * color.xyz;
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ALBEDO = final_color;
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}
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"
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[resource]
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shader = SubResource( 1 )
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shader_param/color = Color( 1, 0.584314, 0, 1 )
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shader_param/flow_speed = 0.2
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shader_param/flow_intensity = 0.8
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shader_param/base_texture = ExtResource( 2 )
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shader_param/flowmap = ExtResource( 1 )
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