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fb alpha emulation for matfx

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This commit is contained in:
aap
2020-05-27 10:26:28 +02:00
parent 84c582c1d7
commit 2b797aeca1
9 changed files with 154 additions and 114 deletions
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12
src/gl/shaders/matfx_env.frag
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@@ -1,9 +1,12 @@
uniform sampler2D tex0;
uniform sampler2D tex1;
uniform float u_coefficient;
uniform vec2 u_fxparams;
uniform vec4 u_colorClamp;
#define shininess (u_fxparams.x)
#define disableFBA (u_fxparams.y)
in vec4 v_color;
in vec2 v_tex0;
in vec2 v_tex1;
@@ -15,15 +18,16 @@ void
main(void)
{
vec4 pass1 = v_color;
vec4 envColor = pass1; // TODO: colorClamp
vec4 envColor = max(pass1, u_colorClamp);
pass1 *= texture(tex0, vec2(v_tex0.x, 1.0-v_tex0.y));
vec4 pass2 = envColor*u_coefficient*texture(tex1, vec2(v_tex1.x, 1.0-v_tex1.y));
vec4 pass2 = envColor*shininess*texture(tex1, vec2(v_tex1.x, 1.0-v_tex1.y));
pass1.rgb = mix(u_fogColor.rgb, pass1.rgb, v_fog);
pass2.rgb = mix(vec3(0.0, 0.0, 0.0), pass2.rgb, v_fog);
color.rgb = pass1.rgb*pass1.a + pass2.rgb;
float fba = max(pass1.a, disableFBA);
color.rgb = pass1.rgb*pass1.a + pass2.rgb*fba;
color.a = pass1.a;
DoAlphaTest(color.a);

12
src/gl/shaders/matfx_gl3.inc
View File

@@ -34,9 +34,12 @@ const char *matfx_env_frag_src =
"uniform sampler2D tex0;\n"
"uniform sampler2D tex1;\n"
"uniform float u_coefficient;\n"
"uniform vec2 u_fxparams;\n"
"uniform vec4 u_colorClamp;\n"
"#define shininess (u_fxparams.x)\n"
"#define disableFBA (u_fxparams.y)\n"
"in vec4 v_color;\n"
"in vec2 v_tex0;\n"
"in vec2 v_tex1;\n"
@@ -48,15 +51,16 @@ const char *matfx_env_frag_src =
"main(void)\n"
"{\n"
" vec4 pass1 = v_color;\n"
" vec4 envColor = pass1; // TODO: colorClamp\n"
" vec4 envColor = max(pass1, u_colorClamp);\n"
" pass1 *= texture(tex0, vec2(v_tex0.x, 1.0-v_tex0.y));\n"
" vec4 pass2 = envColor*u_coefficient*texture(tex1, vec2(v_tex1.x, 1.0-v_tex1.y));\n"
" vec4 pass2 = envColor*shininess*texture(tex1, vec2(v_tex1.x, 1.0-v_tex1.y));\n"
" pass1.rgb = mix(u_fogColor.rgb, pass1.rgb, v_fog);\n"
" pass2.rgb = mix(vec3(0.0, 0.0, 0.0), pass2.rgb, v_fog);\n"
" color.rgb = pass1.rgb*pass1.a + pass2.rgb;\n"
" float fba = max(pass1.a, disableFBA);\n"
" color.rgb = pass1.rgb*pass1.a + pass2.rgb*fba;\n"
" color.a = pass1.a;\n"
" DoAlphaTest(color.a);\n"