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Merge branch 'ogl-subtractive-lighting' into 'master'

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OpenGL shader updated to act like the new lighting

See merge request KartKrew/Kart!375
This commit is contained in:
Sal 2021-02-12 19:24:59 -05:00
commit 86ed506773
1 changed files with 34 additions and 3 deletions
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37
src/hardware/r_opengl/r_opengl.c
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@ -150,8 +150,8 @@ FUNCPRINTF void GL_DBG_Printf(const char *format, ...)
char str[4096] = "";
va_list arglist;
if (gllogstream)
{
if (gllogstream)
{
va_start(arglist, format);
vsnprintf(str, 4096, format, arglist);
va_end(arglist);
@ -698,7 +698,38 @@ static INT32 shader_leveltime = 0;
"float fd = fe - fs;\n" \
"darkness = clamp((darkness - fs) * (1.0 / fd), 0.0, 1.0);\n" \
"}\n" \
"final_color = mix(final_color, fade_color, darkness);\n"
"float colorBrightness = sqrt((final_color.r * final_color.r) + (final_color.g * final_color.g) + (final_color.b * final_color.b));\n" \
"float fogBrightness = sqrt((fade_color.r * fade_color.r) + (fade_color.g * fade_color.g) + (fade_color.b * fade_color.b));\n" \
"float colorIntensity = 0.0;\n" \
"if (fogBrightness > colorBrightness) {\n" \
"colorIntensity = 1.0 - min(final_color.r, min(final_color.g, final_color.b));\n" \
"colorIntensity = abs(colorIntensity - (1.0 - fogBrightness));\n" \
"} else {\n" \
"colorIntensity = max(final_color.r, max(final_color.g, final_color.b));\n" \
"colorIntensity = abs(colorIntensity - (fogBrightness));\n" \
"}\n" \
"colorIntensity *= darkness;\n" \
"if (abs(final_color.r - fade_color.r) <= colorIntensity) {\n" \
"final_color.r = fade_color.r;\n" \
"} else if (final_color.r < fade_color.r) {\n" \
"final_color.r += colorIntensity;\n" \
"} else {\n" \
"final_color.r -= colorIntensity;\n" \
"}\n" \
"if (abs(final_color.g - fade_color.g) <= colorIntensity) {\n" \
"final_color.g = fade_color.g;\n" \
"} else if (final_color.g < fade_color.g) {\n" \
"final_color.g += colorIntensity;\n" \
"} else {\n" \
"final_color.g -= colorIntensity;\n" \
"}\n" \
"if (abs(final_color.b - fade_color.b) <= colorIntensity) {\n" \
"final_color.b = fade_color.b;\n" \
"} else if (final_color.b < fade_color.b) {\n" \
"final_color.b += colorIntensity;\n" \
"} else {\n" \
"final_color.b -= colorIntensity;\n" \
"}\n" \
#define GLSL_SOFTWARE_FRAGMENT_SHADER \
"uniform sampler2D tex;\n" \