WTS/game/scripts/shaders.rpy
2022-05-17 00:48:22 +01:00

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init python:
renpy.register_shader("outline_shader", fragment_300="""
const float THICKNESS = 1.0 / 128.0;
vec4 col = texture2D(tex0, v_tex_coord);
if (col.a <= 0.5) {
float a = texture2D(tex0, vec2(v_tex_coord.x + THICKNESS, v_tex_coord.y)).a +
texture2D(tex0, vec2(v_tex_coord.x, v_tex_coord.y - THICKNESS)).a +
texture2D(tex0, vec2(v_tex_coord.x - THICKNESS, v_tex_coord.y)).a +
texture2D(tex0, vec2(v_tex_coord.x, v_tex_coord.y + THICKNESS)).a;
if (col.a < 1.0 && a > 0.0)
gl_FragColor = vec4(0.0, 1.0, 0.0, 0.8);
else
gl_FragColor = col;
}
""")