wooo stuff yay

games/forespend/res/shaders/tile.vs

@@ -0,0 +1,36 @@
+#version 330 core
+attribute vec3 vertexPosition;
+attribute vec2 vertexTexCoord;
+attribute vec4 vertexColor;
+attribute vec3 vertexNormal;
+
+out vec2 fragTexCoord;
+out vec3 fragWorldPos;
+out vec3 normal;
+out vec3 pos;
+out int level;
+uniform mat4 mvp;
+uniform mat4 modelmat;
+void main() {
+	
+    fragTexCoord = vertexTexCoord;
+	vec3 vpos=vertexPosition;
+	if (vpos.y>1.0)	vpos.y=0.99;
+	else if (vpos.y<0.0) vpos.y=0.01;
+	vpos.x*=4.0;vpos.z*=4.0;
+    gl_Position = mvp * vec4(vpos, 1.0);
+    normal = mat3(modelmat) * vertexNormal;
+	pos = (modelmat * vec4(vertexPosition, 1.0)).xyz;
+	if (pos.y>=-0.01&&pos.y<=1.01){
+		vec3 n = normalize(normal);
+		if(abs(n.x)>abs(n.y)&&abs(n.x)>abs(n.z))
+		fragTexCoord.y=-fragTexCoord.y;
+		else{
+			if (n.z > 0.5)
+                fragTexCoord.y -= 0.1;  // Positive Z
+            
+			fragTexCoord.y-=0.00002;
+			
+		}
+	}
+}