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GLES 2 fix for fog table: use float only for vars and consts

This commit is contained in:
Flyinghead 2018-06-05 13:36:49 +02:00
parent 49e172b169
commit b9fe9332cf
1 changed files with 4 additions and 4 deletions
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8
core/rend/gles/gles.cpp
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@ -200,10 +200,10 @@ uniform sampler2D tex,fog_table; \n\
lowp float fog_mode2(highp float w) \n\
{ \n\
highp float z = clamp(w * sp_FOG_DENSITY, 1.0, 255.9999); \n\
uint i = uint(floor(log2(z))); \n\
highp float m = z * 16 / pow(2, i) - 16; \n\
float idx = floor(m) + i * 16u + 0.5; \n\
vec4 fog_coef = " TEXLOOKUP "(fog_table, vec2(idx / 128, 0.75 - (m - floor(m)) / 2)); \n\
float exp = floor(log2(z)); \n\
highp float m = z * 16.0 / pow(2.0, exp) - 16.0; \n\
float idx = floor(m) + exp * 16.0 + 0.5; \n\
vec4 fog_coef = " TEXLOOKUP "(fog_table, vec2(idx / 128.0, 0.75 - (m - floor(m)) / 2.0)); \n\
return fog_coef.a; \n\
} \n\
void main() \n\