32 lines
628 B
Text
32 lines
628 B
Text
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!!permu FOG
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!!samps 1
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!!argf MASK=0
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!!cvarb r_fog_exp2=true
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//used by both particles and sprites.
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//note the fog blending mode is all that differs from defaultadditivesprite
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#include "sys/defs.h"
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#include "sys/fog.h"
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layout(location=0) varying vec2 tc;
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layout(location=1) varying vec4 vc;
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#ifdef VERTEX_SHADER
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void main ()
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{
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tc = v_texcoord;
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vc = v_colour;
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gl_Position = ftetransform();
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}
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#endif
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#ifdef FRAGMENT_SHADER
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void main ()
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{
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vec4 col = texture2D(s_t0, tc);
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if (arg_MASK!=0.0 && col.a < float(arg_MASK))
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discard;
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gl_FragColor = fog4additive(col * vc * e_colourident);
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}
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#endif
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