jpmschweitzerandClaude Opus 4.6
8218d5a942
Writing ALPHA caused Godot to treat all meshes as transparent, breaking per-pixel depth testing. Hair clipped through the head, clothing through the body — all caused by object-level depth sorting instead of z-buffer. Removing ALPHA makes everything opaque with correct depth behavior. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
32 lines
1.3 KiB
Plaintext
32 lines
1.3 KiB
Plaintext
shader_type spatial;
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render_mode unshaded;
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// Original Trellis atlas texture
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uniform sampler2D albedo_tex : source_color;
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// Recolor mask: white = replaceable, black = keep original
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uniform sampler2D recolor_mask : hint_default_black;
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// Runtime tint color set by game code
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uniform vec4 tint_color : source_color = vec4(0.8, 0.8, 0.8, 1.0);
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// Subtle darkening on shadow side (0.0 = no shadow, 1.0 = full black)
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uniform float shadow_strength : hint_range(0.0, 1.0) = 0.15;
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uniform float shadow_threshold : hint_range(0.0, 1.0) = 0.3;
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void fragment() {
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vec4 original = texture(albedo_tex, UV);
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float mask = texture(recolor_mask, UV).r;
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// Recolor: blend tint with original, preserving luminance in masked regions
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// This keeps texture detail (shadows, edges, highlights) while changing the hue
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float luma = dot(original.rgb, vec3(0.299, 0.587, 0.114));
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vec3 tinted = tint_color.rgb * (luma * 1.5 + 0.2); // scale luma to avoid too-dark
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vec3 base = mix(original.rgb, tinted, mask);
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// Gentle toon shadow — just a subtle darkening, not a color replacement
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vec3 light_dir = normalize(vec3(0.3, -1.0, 0.5));
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float ndl = dot(NORMAL, -light_dir);
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float toon = smoothstep(shadow_threshold - 0.1, shadow_threshold + 0.1, ndl);
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vec3 color = base * mix(1.0 - shadow_strength, 1.0, toon);
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ALBEDO = color;
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}
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