48 lines
1.3 KiB
GLSL
48 lines
1.3 KiB
GLSL
#version 330 core
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layout(location = 0) out vec4 fragColor;
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in VS_OUT {
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float flogz;
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vec2 texcoord;
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vec3 vertex_normal;
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vec3 view_vector;
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vec4 material_color;
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vec4 ap_color;
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} fs_in;
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uniform sampler2D color_tex;
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uniform mat4 osg_ViewMatrixInverse;
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uniform vec4 fg_Viewport;
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const float TRANSPARENT_METALLIC = 0.0;
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const float TRANSPARENT_ROUGHNESS = 0.1;
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// color.glsl
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vec3 eotf_inverse_sRGB(vec3 srgb);
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// shading_transparent.glsl
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vec3 eval_lights_transparent(
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vec3 base_color, float metallic, float roughness, float occlusion,
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vec3 emissive, vec3 P, vec3 N, vec3 V, vec2 uv, vec4 ap,
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mat4 view_matrix_inverse);
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// logarithmic_depth.glsl
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float logdepth_encode(float z);
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void main()
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{
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vec4 texel = texture(color_tex, fs_in.texcoord);
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vec3 base_color = eotf_inverse_sRGB(texel.rgb) * fs_in.material_color.rgb;
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float alpha = fs_in.material_color.a * texel.a;
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vec3 N = normalize(fs_in.vertex_normal);
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vec3 V = normalize(-fs_in.view_vector);
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vec2 uv = (gl_FragCoord.xy - fg_Viewport.xy) / fg_Viewport.zw;
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vec3 color = eval_lights_transparent(
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base_color, TRANSPARENT_METALLIC, TRANSPARENT_ROUGHNESS, 1.0, vec3(0.0),
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fs_in.view_vector, N, V, uv, fs_in.ap_color, osg_ViewMatrixInverse);
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fragColor = vec4(color, alpha);
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gl_FragDepth = logdepth_encode(fs_in.flogz);
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}
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