Create/Update assets for version 1.21.3

assets/minecraft/shaders/core/entity.vsh

@@ -0,0 +1,46 @@
+#version 150
+
+#moj_import <minecraft:light.glsl>
+#moj_import <minecraft:fog.glsl>
+
+in vec3 Position;
+in vec4 Color;
+in vec2 UV0;
+in ivec2 UV1;
+in ivec2 UV2;
+in vec3 Normal;
+
+uniform sampler2D Sampler1;
+uniform sampler2D Sampler2;
+
+uniform mat4 ModelViewMat;
+uniform mat4 ProjMat;
+uniform mat4 TextureMat;
+uniform int FogShape;
+
+uniform vec3 Light0_Direction;
+uniform vec3 Light1_Direction;
+
+out float vertexDistance;
+out vec4 vertexColor;
+out vec4 lightMapColor;
+out vec4 overlayColor;
+out vec2 texCoord0;
+
+void main() {
+    gl_Position = ProjMat * ModelViewMat * vec4(Position, 1.0);
+
+    vertexDistance = fog_distance(Position, FogShape);
+#ifdef NO_CARDINAL_LIGHTING
+    vertexColor = Color;
+#else
+    vertexColor = minecraft_mix_light(Light0_Direction, Light1_Direction, Normal, Color);
+#endif
+    lightMapColor = texelFetch(Sampler2, UV2 / 16, 0);
+    overlayColor = texelFetch(Sampler1, UV1, 0);
+
+    texCoord0 = UV0;
+#ifdef APPLY_TEXTURE_MATRIX
+    texCoord0 = (TextureMat * vec4(UV0, 0.0, 1.0)).xy;
+#endif
+}