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author | LaG1924 <lag1924@gmail.com> | 2021-12-06 01:39:15 +0100 |
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committer | LaG1924 <lag1924@gmail.com> | 2021-12-07 12:37:47 +0100 |
commit | aa591c73c818d7f26caa15bc567929e2d404dcf2 (patch) | |
tree | 2514facee211ef5eb16812658caae91d1ee078d6 /cwd/assets/altcraft/shaders | |
parent | Minor shader optimization (diff) | |
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Diffstat (limited to 'cwd/assets/altcraft/shaders')
-rw-r--r-- | cwd/assets/altcraft/shaders/frag/fwd_entity.fs | 11 | ||||
-rw-r--r-- | cwd/assets/altcraft/shaders/frag/fwd_face.fs | 38 | ||||
-rw-r--r-- | cwd/assets/altcraft/shaders/frag/fwd_sky.fs | 65 |
3 files changed, 114 insertions, 0 deletions
diff --git a/cwd/assets/altcraft/shaders/frag/fwd_entity.fs b/cwd/assets/altcraft/shaders/frag/fwd_entity.fs new file mode 100644 index 0000000..094aaf2 --- /dev/null +++ b/cwd/assets/altcraft/shaders/frag/fwd_entity.fs @@ -0,0 +1,11 @@ +#version 330 core + +in vec4 entityWorldPos; + +out vec4 fragColor; + +uniform vec3 entityColor; + +void main() { + fragColor = vec4(entityColor, 1.0f); +} diff --git a/cwd/assets/altcraft/shaders/frag/fwd_face.fs b/cwd/assets/altcraft/shaders/frag/fwd_face.fs new file mode 100644 index 0000000..deb8341 --- /dev/null +++ b/cwd/assets/altcraft/shaders/frag/fwd_face.fs @@ -0,0 +1,38 @@ +#version 330 core + +in vec4 faceWorldPos; +in vec3 faceTextureUv; +in vec3 faceAddColor; +in vec3 faceNormal; +in vec2 faceLight; + +out vec4 fragColor; + +uniform sampler2DArray textureAtlas; + +layout (std140) uniform Globals { + mat4 projView; + mat4 proj; + mat4 view; + uvec2 viewportSize; + vec4 ssaoKernels[64]; + float globalTime; + float dayTime; + float gamma; +}; + +void main() { + vec4 col = texture(textureAtlas, faceTextureUv); + if (col.a < 0.3f) + discard; + + float localLight = faceLight.r / 15.0f; + float skyLight = faceLight.g / 15.0f; + float lightLevel = clamp(localLight + skyLight * dayTime, 0.01f, 1.0f); + lightLevel = pow(lightLevel, 3); + lightLevel = clamp(lightLevel, 0.005f, 1.0f); + + fragColor = vec4(col.rgb * faceAddColor.rgb * lightLevel, 1.0f); + + fragColor.rgb = pow(fragColor.rgb, vec3(1.0f / gamma)); +} diff --git a/cwd/assets/altcraft/shaders/frag/fwd_sky.fs b/cwd/assets/altcraft/shaders/frag/fwd_sky.fs new file mode 100644 index 0000000..b6185fd --- /dev/null +++ b/cwd/assets/altcraft/shaders/frag/fwd_sky.fs @@ -0,0 +1,65 @@ +#version 330 core + +in vec3 facePos; + +out vec4 fragColor; + +layout (std140) uniform Globals { + mat4 projView; + mat4 proj; + mat4 view; + uvec2 viewportSize; + vec4 ssaoKernels[64]; + float globalTime; + float dayTime; + float gamma; +}; + +uniform sampler2DArray textureAtlas; +uniform vec4 sunTexture; +uniform float sunTextureLayer; +uniform vec4 moonTexture; +uniform float moonTextureLayer; + +const vec4 DaySkyColor = vec4(0.21, 0.4, 1, 1); + +const vec3 SunPos = vec3(0, 0.1, 0.5); + +const vec3 MoonPos = vec3(0, 0.1, -0.5); + +const vec4 NightSkyColor = vec4(0.0, 0.0008, 0.002, 1.0); + +vec3 TransformTextureCoord(vec4 TextureAtlasCoords, vec2 UvCoords, float Layer) { + float x = TextureAtlasCoords.x; + float y = TextureAtlasCoords.y; + float w = TextureAtlasCoords.z; + float h = TextureAtlasCoords.w; + vec2 A = vec2(x, 1 - y - h); + vec2 B = vec2(x + w, 1 - y); + vec2 transformed = A + UvCoords * (B - A); + return vec3(transformed.x, transformed.y, Layer); +} + +vec4 Sun() { + vec3 sunDelta = (facePos - SunPos) * 3.0f; + float distanceToSun = length(sunDelta); + vec4 sunColor = texture(textureAtlas, TransformTextureCoord(sunTexture, (vec2(sunDelta.xy) + 0.5f), sunTextureLayer)); + vec4 sun = mix(vec4(0, 0, 0, 1), sunColor, clamp(1 - distanceToSun * 2.0f, 0, 1)); + return sun; +} + +vec4 Moon() { + vec3 moonDelta = (facePos - MoonPos) * 4.5f; + float distanceToMoon = length(moonDelta); + vec4 moonColor = texture(textureAtlas, TransformTextureCoord(moonTexture, (vec2(moonDelta.xy) + 0.5f), moonTextureLayer)); + vec4 moon = mix(vec4(0, 0, 0, 1),moonColor, clamp(1 - distanceToMoon * 2.0f, 0, 1)); + return moon; +} + +void main() { + fragColor = vec4(mix(NightSkyColor, DaySkyColor, dayTime).rgb, 1.0f); + fragColor += vec4(Sun().rgb, 1.0f); + fragColor += vec4(Moon().rgb, 1.0f); + + fragColor.rgb = pow(fragColor.rgb, vec3(1.0f / gamma)); +} |