22 lines
676 B
GLSL
22 lines
676 B
GLSL
uniform sampler2D tex;
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uniform sampler2D dtex;
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in vec2 tc;
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in vec4 pc;
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flat in float billboard_mix;
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out vec4 FragColor;
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#stk_include "utils/getPosFromUVDepth.frag"
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void main(void)
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{
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vec2 xy = gl_FragCoord.xy / u_screen;
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float FragZ = gl_FragCoord.z;
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vec4 FragmentPos = getPosFromUVDepth(vec3(xy, FragZ), u_inverse_projection_matrix);
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float EnvZ = texture(dtex, xy).x;
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vec4 EnvPos = getPosFromUVDepth(vec3(xy, EnvZ), u_inverse_projection_matrix);
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float alpha = clamp((EnvPos.z - FragmentPos.z) * 0.3, 0., 1.);
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float billboard_alpha = mix(1.0, texture(tex, tc).a, billboard_mix);
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FragColor = texture(tex, tc) * billboard_alpha * pc * alpha;
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}
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