f98773237e
Adds tree fading based on camera line of sight. Trees now fade out when they obstruct the player's view, improving visibility. Also includes several fixes: - Fixes tree distribution. - Adds a see-through shader. - Adds camera and occlusion scripts.
41 lines
No EOL
1.5 KiB
Text
41 lines
No EOL
1.5 KiB
Text
shader_type spatial;
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// Uniforms that can be controlled from GDScript
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uniform float model_height : hint_range(0.1, 100.0) = 10.0;
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uniform float transition_width : hint_range(0.01, 0.5) = 0.1;
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uniform vec4 base_color : source_color = vec4(1.0, 1.0, 1.0, 1.0);
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uniform float effect_strength : hint_range(0.0, 1.0) = 1.0;
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uniform sampler2D main_texture : source_color;
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uniform float metallic : hint_range(0.0, 1.0) = 0.0;
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uniform float roughness : hint_range(0.0, 1.0) = 0.5;
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varying vec3 world_position;
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void vertex() {
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world_position = VERTEX;
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}
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void fragment() {
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// Get the base texture color
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vec4 tex_color = texture(main_texture, UV);
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// Calculate normalized Y position (0.0 at bottom, 1.0 at top)
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// This uses the local vertex position - adjust based on your model's bounds
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float normalized_y = (world_position.y + model_height * 0.5) / model_height;
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// Define fade boundaries - top 80% invisible, bottom 20% visible
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float fade_start = 0.2; // Start fading at 20% from bottom
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float fade_end = fade_start - transition_width;
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// Calculate position-based alpha
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float position_alpha = smoothstep(fade_end, fade_start, normalized_y);
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// Blend between full visibility and position-based alpha based on effect strength
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float final_alpha = mix(1.0, position_alpha, effect_strength);
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// Set material properties
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ALBEDO = base_color.rgb * tex_color.rgb;
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ALPHA = base_color.a * tex_color.a * final_alpha;
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METALLIC = metallic;
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ROUGHNESS = roughness;
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} |