add v1.541 (Extreme)

shaders/shadow.fsh

@@ -0,0 +1,28 @@
+#version 120
+
+#define gbuffers_shadows
+#define composite0
+#include "shaders.settings"
+
+#if defined Shadows || defined Volumetric_Lighting
+varying vec4 texcoord;
+uniform sampler2D texture;
+uniform int blockEntityId;
+uniform int entityId;
+#endif
+
+void main() {
+
+#if defined Shadows || defined Volumetric_Lighting
+	vec4 color = texture2D(texture, texcoord.xy);
+	if(texcoord.z > 0.9)color.rgb = vec3(1.0, 1.0, 1.0);	//water shadows color
+	if(texcoord.w > 0.9)color = vec4(0.0); 					//disable shadows on entities defined in vertex shadows
+	if(entityId == 11000.0)color *= 0.0;					//remove lightning strike shadow.
+	#if MC_VERSION < 11601									//blockEntityId broken in 1.16.1, causes shadow issue, used to remove beam shadows, 10089 is the id of all emissive blocks but only beam is a block entity
+	if(blockEntityId == 10089.0) color *= 0.0;
+	#endif
+	gl_FragData[0] = color;
+#else
+	gl_FragData[0] = vec4(0.0);
+#endif	
+}