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Merge pull request #1234 from reicast/fh/log2-depth-scaling (GL3/log2) 

GL3: Use log2 depth scaling in fragment shader
This commit is contained in:
Stefanos Kornilios Mitsis Poiitidis 2018-07-23 15:01:45 +02:00 committed by GitHub
parent 95ce251639 4b5e863aa7
commit 055c3599b6
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 27 additions and 6 deletions
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33
core/rend/gles/gles.cpp
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@ -100,10 +100,21 @@ void main() \n\
vec4 vpos=in_pos; \n\
vtx_xyz.xy = vpos.xy; \n\
vtx_xyz.z = vpos.z*sp_FOG_DENSITY; \n\
vpos.w=1.0/vpos.z; \n\
vpos.w=1.0/vpos.z; \n"
#ifndef GLES
"\
if (vpos.w < 0.0) { \n\
gl_Position = vec4(0.0, 0.0, 0.0, vpos.w); \n\
return; \n\
} \n\
vpos.z = vpos.w; \n"
#else
"\
vpos.z=depth_scale.x+depth_scale.y*vpos.w; \n"
#endif
"\
vpos.xy=vpos.xy*scale.xy-scale.zw; \n\
vpos.xy*=vpos.w; \n\
vpos.z=depth_scale.x+depth_scale.y*vpos.w; \n\
gl_Position = vpos; \n\
}";
@ -327,8 +338,13 @@ void main() \n\
#if cp_AlphaTest == 1 \n\
if (cp_AlphaTestValue>color.a) discard;\n\
#endif \n\
//color.rgb=vec3(vtx_xyz.z/255.0);\n\
" FRAGCOL "=color; \n\
//color.rgb=vec3(vtx_xyz.z/255.0);\n"
#ifndef GLES
"\
highp float w = gl_FragCoord.w * 100000.0; \n\
gl_FragDepth = log2(1.0 + w) / 34.0; \n"
#endif
FRAGCOL "=color; \n\
}";
const char* ModifierVolumeShader =
@ -340,8 +356,13 @@ const char* ModifierVolumeShader =
uniform lowp float sp_ShaderColor; \n\
/* Vertex input*/ \n\
void main() \n\
{ \n\
" FRAGCOL "=vec4(0.0, 0.0, 0.0, sp_ShaderColor); \n\
{ \n"
#ifndef GLES
"\
highp float w = gl_FragCoord.w * 100000.0; \n\
gl_FragDepth = log2(1.0 + w) / 34.0; \n"
#endif
FRAGCOL "=vec4(0.0, 0.0, 0.0, sp_ShaderColor); \n\
}";
const char* OSD_Shader =