32 lines
893 B
Lua
32 lines
893 B
Lua
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myShader = love.graphics.newShader[[
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uniform vec2 light_pos;
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uniform vec3 light_color;
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uniform float range;
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uniform float game_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 = light_pos.x - screen_coords.x;
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float distance_y = light_pos.y - screen_coords.y;
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float distance = 1-sqrt( pow(distance_x,2) + pow(distance_y,2) ) / game_scale;
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if (distance < range){
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float alpha = (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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if (color.r<light_color.r){
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color.r = light_color.r;
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}
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if (color.g<light_color.g){
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color.g = light_color.g;
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}
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if (color.b<light_color.b){
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color.b = light_color.b;
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}
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}
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return pixel * color;
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}
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]]
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