24 lines
649 B
Lua
24 lines
649 B
Lua
Shader = {}
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Shader.RadiusGradient = love.graphics.newShader[[
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uniform float pos_x;
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uniform float pos_y;
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uniform float range;
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uniform float scale;
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vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 screen_coords ){
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vec4 pixel = Texel(texture, texture_coords );//This is the current pixel color
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float distance_x = pos_x - screen_coords.x / scale;
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float distance_y = pos_y - screen_coords.y / scale;
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float distance = sqrt( pow(distance_x,2) + pow(distance_y,2) ) ;
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if (distance < range){
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float alpha = 1-(5*distance/range);
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if (pixel.a > alpha){
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pixel.a = alpha;
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}
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}
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return pixel * color * color;
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}
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]]
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