mirror of
https://github.com/zhenyan121/Cubed.git
synced 2026-06-21 18:17:03 +08:00
a8d2ddbacd
* feat(shaders): add lighting to block accumulation OIT shaders * feat(renderer): add water rendering with OIT and new shaders * feat(water): implement screen-space reflection and refraction for water with depth fade and perturbation * refactor(shader): replace glUniform calls with generic set_loc and remove cached locations * feat(water): add noise-based caustics and configurable fog density * fix(water shader): update depth fade and remove underwater check - Increase DEPTH_FADE_DISTANCE from 8 to 10 - Remove conditional so depth fade always applies - Darken deepColor from (0, 0.08, 0.15) to (0, 0.015, 0.045) * feat(underwater): add volume scattering and shadow mapping for light shafts
103 lines
2.0 KiB
GLSL
103 lines
2.0 KiB
GLSL
#version 460
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layout (location = 0) out vec4 accum;
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layout (location = 1) out float reveal;
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in vec2 tc;
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in vec3 normal;
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in vec3 vert_pos;
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in float roughness;
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flat in int tex_layer;
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in float v_depth;
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layout (binding = 0) uniform sampler2DArray samp;
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uniform float ambientStrength;
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uniform vec3 sunlightColor;
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uniform vec3 ambientColor;
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uniform vec3 sunlightDir;
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uniform vec3 cameraPos;
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uniform bool shader_on;
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uniform float specularStrength;
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float weight(float z, float a) {
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float intermediate = 0.03 / (1e-5 + pow(z / 200.0, 4.0));
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return a * clamp(intermediate, 1e-2, 3e2);
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}
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void main() {
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vec4 objectColor = texture(samp, vec3(tc, tex_layer));
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if (!shader_on) {
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vec4 color = objectColor;
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float alpha = color.a;
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if (alpha < 1e-4) discard;
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float w = weight(v_depth, alpha);
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accum = vec4(color.rgb * alpha * w, alpha * w);
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reveal = alpha;
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return;
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}
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vec3 lightDir = normalize(-sunlightDir);
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vec3 norm = normalize(normal);
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vec3 V =
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normalize(cameraPos - vert_pos);
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vec3 H =
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normalize(lightDir + V);
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vec3 ambient = ambientStrength * ambientColor;
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float diff = max(dot(norm, lightDir), 0.0);
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vec3 diffuse = diff * sunlightColor;
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float r =
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clamp(roughness, 0.0, 1.0);
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float shininess =
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mix(
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512.0,
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4.0,
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r
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);
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float ks =
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mix(
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0.8,
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0.02,
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r
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);
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float spec = 0.0;
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if(diff > 0.0)
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{
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spec =
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ks *
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pow(
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max(dot(norm,H),0.0),
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shininess
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);
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}
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vec3 specular = spec * sunlightColor * specularStrength;
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vec4 color = vec4((ambient + diffuse) * objectColor.rgb + specular, objectColor.a);
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float alpha = color.a;
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if (alpha < 1e-4) discard;
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float w = weight(v_depth, alpha);
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accum = vec4(color.rgb * alpha * w, alpha * w);
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reveal = alpha;
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} |