Weiter am Editor gearbeitet, unter anderem LOD System, Items, Trees, Modelle

blight-assets/src/main/resources/Shaders/Fern.frag

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+#import "Common/ShaderLib/GLSLCompat.glsllib"
+
+uniform vec4      m_Diffuse;
+uniform sampler2D m_DiffuseMap;
+uniform bool      m_HasDiffuseMap;
+uniform sampler2D m_NormalMap;
+uniform bool      m_HasNormalMap;
+
+in vec2  texCoord;
+in vec3  vNormal;
+in vec3  vTangent;
+in float vHandedness;
+
+void main() {
+    vec3 baseColor;
+    if (m_HasDiffuseMap) {
+        vec4 tex = texture2D(m_DiffuseMap, texCoord);
+        if (tex.a < 0.5) discard;
+        baseColor = tex.rgb * m_Diffuse.rgb;
+    } else {
+        vec2 uv  = texCoord * 2.0 - 1.0;
+        if (dot(uv, uv) > 0.95) discard;
+        baseColor = m_Diffuse.rgb;
+    }
+
+    vec3 N = normalize(vNormal);
+    if (m_HasNormalMap) {
+        vec3 T  = normalize(vTangent);
+        vec3 B  = normalize(cross(N, T) * vHandedness);
+        mat3 TBN = mat3(T, B, N);
+        vec3 nm  = texture2D(m_NormalMap, texCoord).rgb * 2.0 - 1.0;
+        N = normalize(TBN * nm);
+    }
+
+    vec3  sun   = normalize(vec3(0.4, 1.0, 0.3));
+    float diff  = max(0.0, dot(N, sun));
+    // two-sided: underside receives half brightness
+    diff = max(diff, max(0.0, dot(-N, sun)) * 0.5);
+    float lit   = 0.45 + diff * 0.55;
+
+    gl_FragColor = vec4(baseColor * lit, 1.0);
+}