#ifndef INCLUDE_SKY #define INCLUDE_SKY #define SUN_GLARE_AMOUNT 10 // [0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30] #define MOON_GLARE_AMOUNT 10 // [0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30] #include "/lib/colors/lightAndAmbientColors.glsl" #include "/lib/colors/skyColors.glsl" #ifdef CAVE_FOG #include "/lib/atmospherics/fog/caveFactor.glsl" #endif vec3 getCustomSkyColor(out bool isCustomSky) { isCustomSky = false; #ifdef SAVE_SKYBOX_DATA vec4 skyColor = texelFetch(colortex13, texelCoord, 0); int hasCustomSky = int(texelFetch(colortex6, texelCoord, 0).g * 255.1); if (hasCustomSky == 238 || skyColor.rgb != vec3(0.0)) { isCustomSky = true; return skyColor.rgb; } #endif return vec3(0.0); } vec3 GetSky(float VdotU, float VdotS, float dither, bool doGlare, bool doGround, out bool isCustomSky, bool skipCustomSky) { isCustomSky = false; #ifdef SAVE_SKYBOX_DATA vec3 customSkyColor = getCustomSkyColor(isCustomSky); if (isCustomSky && !skipCustomSky) { return customSkyColor; } #endif // Prepare variables float nightFactorSqrt2 = sqrt2(nightFactor); float nightFactorM = sqrt2(nightFactorSqrt2) * 0.4; float VdotSM1 = pow2(max(VdotS, 0.0)); float VdotSM2 = pow2(VdotSM1); float VdotSM3 = pow2(pow2(max(-VdotS, 0.0))); float VdotSML = sunVisibility > 0.5 ? VdotS : -VdotS; float VdotUmax0 = max(VdotU, 0.0); float VdotUmax0M = 1.0 - pow2(VdotUmax0); // Prepare colors float aroundMoonSkyFactor = 1.0; #ifndef EUPHORIA_PATCHES_IS_SPACE_MOD_INSTALLED aroundMoonSkyFactor = 1.5 - 0.5 * nightFactorSqrt2 + nightFactorM * VdotSM3 * 1.5; #endif vec3 upColor = mix(nightUpSkyColor * aroundMoonSkyFactor, dayUpSkyColor, sunFactor); vec3 middleColor = mix(nightMiddleSkyColor * (3.0 - 2.0 * nightFactorSqrt2), dayMiddleSkyColor * (1.0 + VdotSM2 * 0.3), sunFactor); vec3 downColor = mix(nightDownSkyColor, dayDownSkyColor, (sunFactor + sunVisibility) * 0.5); // Mix the colors // Set sky gradient float scatteredGroundMixerMult = 1.0; float VdotUM1 = pow2(1.0 - VdotUmax0); VdotUM1 = pow(VdotUM1, 1.0 - VdotSM2 * 0.4); VdotUM1 = mix(VdotUM1, 1.0, rainFactor2 * 0.15); vec3 finalSky = mix(upColor, middleColor, VdotUM1); // Add sunset color float VdotUM2 = pow2(1.0 - abs(VdotU)); VdotUM2 = VdotUM2 * VdotUM2 * (3.0 - 2.0 * VdotUM2); VdotUM2 *= (0.7 - nightFactorM + VdotSM1 * (0.3 + nightFactorM)) * invNoonFactor * sunFactor; finalSky = mix(finalSky, sunsetDownSkyColorP * (1.0 + VdotSM1 * 0.3), VdotUM2 * invRainFactor); // Add sky ground with fake light scattering float VdotUM3 = min(max0(-VdotU + 0.08) / 0.35, 1.0); VdotUM3 = smoothstep1(VdotUM3); vec3 scatteredGroundMixer = vec3(VdotUM3 * VdotUM3, sqrt1(VdotUM3), sqrt3(VdotUM3)); scatteredGroundMixer = mix(vec3(VdotUM3), scatteredGroundMixer, 0.75 - 0.5 * rainFactor); finalSky = mix(finalSky, downColor, scatteredGroundMixer * scatteredGroundMixerMult); // // Sky Ground if (doGround) finalSky *= smoothstep1(pow2(1.0 + min(VdotU, 0.0))); // Apply Underwater Fog if (isEyeInWater == 1) finalSky = mix(finalSky * 3.0, waterFogColor, VdotUmax0M); // Sun/Moon Glare #if (SUN_GLARE_AMOUNT > 0 || MOON_GLARE_AMOUNT > 0) && !defined EUPHORIA_PATCHES_IS_SPACE_MOD_INSTALLED if (doGlare) { if (0.0 < VdotSML) { float glareScatter = 3.0 * (2.0 - clamp01(VdotS * 1000.0)); #ifndef SUN_MOON_DURING_RAIN glareScatter *= 1.0 - 0.75 * rainFactor2; #endif float VdotSM4 = pow(abs(VdotS), glareScatter); float visfactor = 0.075; float glare = visfactor / (1.0 - (1.0 - visfactor) * VdotSM4) - visfactor; glare *= 0.7; float glareWaterFactor = isEyeInWater * sunVisibility; vec3 glareColor = mix(vec3(0.38, 0.4, 0.5) * 0.3, vec3(1.5, 0.7, 0.3) + vec3(0.0, 0.5, 0.5) * noonFactor, sunVisibility); #if BLOOD_MOON > 0 glareColor = mix(glareColor, vec3(0.6314, 0.0431, 0.0431), getBloodMoon(sunVisibility)); #endif glareColor = glareColor + glareWaterFactor * vec3(7.0); #ifdef SUN_MOON_DURING_RAIN glare *= 1.0 - 0.6 * rainFactor; #else glare *= 1.0 - 0.8 * rainFactor; #endif #if RAIN_STYLE == 1 float glareDesaturateFactor = 0.5 * rainFactor; #elif RAIN_STYLE == 2 float glareDesaturateFactor = rainFactor; #endif glareColor = mix(glareColor, vec3(GetLuminance(glareColor)), glareDesaturateFactor); glare *= mix(MOON_GLARE_AMOUNT * 0.1, SUN_GLARE_AMOUNT * 0.1, sunVisibility); finalSky += glare * shadowTime * glareColor; } } #endif #ifdef CAVE_FOG // Apply Cave Fog finalSky = mix(finalSky, caveFogColor, GetCaveFactor() * VdotUmax0M); #endif // Dither to fix banding finalSky += (dither - 0.5) / 128.0; #if RETRO_LOOK == 1 finalSky = vec3(0.0); #elif RETRO_LOOK ==2 finalSky = mix(finalSky, vec3(0.0), nightVision); #endif return finalSky; } vec3 GetLowQualitySky(float VdotU, float VdotS, float dither, bool doGlare, bool doGround) { // Prepare variables float VdotUmax0 = max(VdotU, 0.0); float VdotUmax0M = 1.0 - pow2(VdotUmax0); // Prepare colors vec3 upColor = mix(nightUpSkyColor, dayUpSkyColor, sunFactor); vec3 middleColor = mix(nightMiddleSkyColor, dayMiddleSkyColor, sunFactor); // Mix the colors // Set sky gradient float VdotUM1 = pow2(1.0 - VdotUmax0); VdotUM1 = mix(VdotUM1, 1.0, rainFactor2 * 0.2); vec3 finalSky = mix(upColor, middleColor, VdotUM1); // Add sunset color float VdotUM2 = pow2(1.0 - abs(VdotU)); VdotUM2 *= invNoonFactor * sunFactor * (0.8 + 0.2 * VdotS); finalSky = mix(finalSky, sunsetDownSkyColorP * (shadowTime * 0.6 + 0.2), VdotUM2 * invRainFactor); // // Sky Ground finalSky *= pow2(pow2(1.0 + min(VdotU, 0.0))); // Apply Underwater Fog if (isEyeInWater == 1) finalSky = mix(finalSky, waterFogColor, VdotUmax0M); // Sun/Moon Glare finalSky *= 1.0 + mix(nightFactor, 0.5 + 0.7 * noonFactor, VdotS * 0.5 + 0.5) * pow2(pow2(pow2(VdotS))); #ifdef CAVE_FOG // Apply Cave Fog finalSky = mix(finalSky, caveFogColor, GetCaveFactor() * VdotUmax0M); #endif #if RETRO_LOOK == 1 || RETRO_LOOK == 2 finalSky = vec3(0.0); #endif return finalSky; } vec3 GetSkyReflected(float VdotU, float VdotS, float dither, bool doGlare, bool doGround, out bool isCustomSky) { vec3 regularSkyColor = GetSky(VdotU, VdotS, dither, doGlare, doGround, isCustomSky, true); #ifdef SAVE_SKYBOX_DATA vec3 customSkyColor = getCustomSkyColor(isCustomSky); if (isCustomSky) { return mix(regularSkyColor, customSkyColor, 0.33); } #endif return regularSkyColor; } vec3 GetLowQualitySkyReflected(float VdotU, float VdotS, float dither, bool doGlare, bool doGround, out bool isCustomSky) { vec3 regularSkyColor = GetLowQualitySky(VdotU, VdotS, dither, doGlare, doGround); isCustomSky = false; #ifdef SAVE_SKYBOX_DATA vec3 customSkyColor = getCustomSkyColor(isCustomSky); if (isCustomSky) { return mix(regularSkyColor, customSkyColor, 0.33); } #endif return regularSkyColor; } #endif //INCLUDE_SKY