49 lines
1.2 KiB
Plaintext
49 lines
1.2 KiB
Plaintext
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shader_type spatial;
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render_mode blend_mix,depth_draw_opaque,cull_disabled, unshaded;
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uniform vec4 albedo_color : source_color;
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uniform sampler2D albedo_texture : source_color;
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uniform sampler2D normal_texture : source_color;
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uniform bool use_normalmap = false;
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uniform bool use_alpha_texture = false;
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uniform float alpha_scissor_threshold : hint_range(0,1);
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uniform float normal_scale : hint_range(-5,5) = 1.0;
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uniform vec3 uv1_scale;
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uniform vec3 uv1_offset;
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void vertex()
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{
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UV = UV * uv1_scale.xy + uv1_offset.xy;
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}
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void fragment()
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{
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vec2 base_uv = UV;
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vec4 albedo = texture( albedo_texture, base_uv ) * albedo_color;
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vec4 normal_tex = texture( normal_texture, base_uv );
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// 0.5 + -1.0 == -1.0 + 0.5
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//ALBEDO = vec3(1.0 - NORMAL.y, 1.0 - NORMAL.x, - NORMAL.z)* 0.5;
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if ( use_normalmap )
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{
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vec3 normalmap;
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normalmap.xy = normal_tex.xy * 2.0 - 1.0;
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normalmap.z = sqrt(max(0.0, 1.0 - dot(normalmap.xy, normalmap.xy)));
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NORMAL = normalize(mix(NORMAL, TANGENT * normalmap.x + BINORMAL * normalmap.y + NORMAL * normalmap.z, normal_scale));
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}
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ALBEDO = vec3( -NORMAL.x, NORMAL.y, -NORMAL.z) * 0.5 + 0.5;
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if ( use_alpha_texture )
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{
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ALPHA = albedo.a;
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ALPHA_SCISSOR_THRESHOLD = alpha_scissor_threshold;
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}
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}
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