yes

modules/wallpaper-engine/effects/perspective/preview/shaders/effects/perspective.frag

@@ -0,0 +1,36 @@
+
+// [COMBO] {"material":"Repeat","combo":"REPEAT","type":"options","default":1}
+
+varying vec3 v_TexCoord;
+
+uniform sampler2D g_Texture0; // {"material":"Framebuffer","hidden":true}
+
+uniform float g_Top; // {"material":"Top","default":1,"range":[-1,2]}
+uniform float g_Bottom; // {"material":"Bottom","default":1,"range":[-1,2]}
+uniform float g_Left; // {"material":"Left","default":1,"range":[-1,2]}
+uniform float g_Right; // {"material":"Right","default":1,"range":[-1,2]}
+
+
+void main() {
+	vec2 texCoord = v_TexCoord.xy / v_TexCoord.z;
+	
+#if MODE == 0
+	texCoord -= CAST2(0.5);
+	//texCoord.x += v_Perspective.x / v_TexCoord.x;
+	
+	//texCoord.x *= 1.0 + (1.0 - v_TexCoord.y) * g_Top * (1.0 / (1.0 - v_TexCoord.y)) +
+	//				v_TexCoord.y * g_Bottom;
+	//texCoord.y *= (1.0 - v_TexCoord.x) * g_Left +
+	//				v_TexCoord.x * g_Right;
+	texCoord += CAST2(0.5);
+#endif
+
+
+
+#if REPEAT
+	texCoord = frac(texCoord);
+#endif
+	gl_FragColor = texSample2D(g_Texture0, texCoord);
+	
+	//gl_FragColor = vec4(v_TexCoord.xy, 0, 1);
+}

modules/wallpaper-engine/effects/perspective/preview/shaders/effects/perspective.vert

@@ -0,0 +1,100 @@
+
+// [COMBO] {"material":"Mode","combo":"MODE","type":"options","default":0,"options":{"Vertex":1,"UV":0}}
+
+#include "common.h"
+
+uniform mat4 g_ModelViewProjectionMatrix;
+uniform vec4 g_Texture0Resolution;
+
+uniform float g_Top; // {"material":"Top","default":0,"range":[-0.49,0.49]}
+uniform float g_Bottom; // {"material":"Bottom","default":0,"range":[-0.49,0.49]}
+uniform float g_Left; // {"material":"Left","default":0,"range":[-0.49,0.49]}
+uniform float g_Right; // {"material":"Right","default":0,"range":[-0.49,0.49]}
+
+attribute vec3 a_Position;
+attribute vec2 a_TexCoord;
+
+varying vec3 v_TexCoord;
+
+
+void main() {
+
+	vec3 position = a_Position;
+	v_TexCoord.xy = a_TexCoord;
+	v_TexCoord.z = 1.0;
+	
+#if MODE == 1
+	position.x += mix(g_Texture0Resolution.z * g_Top * mix(-1.0, 1.0, step(a_TexCoord.x, 0.5)),
+					g_Texture0Resolution.z * g_Bottom * mix(-1.0, 1.0, step(a_TexCoord.x, 0.5)),
+					step(0.5, a_TexCoord.y));
+    
+	position.y += mix(g_Texture0Resolution.w * -g_Left * mix(-1.0, 1.0, step(a_TexCoord.y, 0.5)),
+					g_Texture0Resolution.w * -g_Right * mix(-1.0, 1.0, step(a_TexCoord.y, 0.5)),
+					step(0.5, a_TexCoord.x));
+	
+#endif
+	
+	float p3x = g_Top;
+	float p3y = g_Left;
+	
+	float p2x = 1 - g_Top;
+	float p2y = g_Right;
+	
+	float p1x = 1 - g_Bottom;
+	float p1y = 1 - g_Right;
+	
+	float p0x = g_Bottom;
+	float p0y = 1 - g_Left;
+	
+	float ax = p2x - p0x;
+	float ay = p2y - p0y;
+	float bx = p3x - p1x;
+	float by = p3y - p1y;
+
+	float cross = ax * by - ay * bx;
+
+	//if (cross != 0) {
+		float cy = p0y - p1y;
+		float cx = p0x - p1x;
+
+		float s = (ax * cy - ay * cx) / cross;
+
+		//if (s > 0 && s < 1) {
+			float t = (bx * cy - by * cx) / cross;
+
+			//if (t > 0 && t < 1) {
+				float q0 = 1 / (1 - t);
+				float q1 = 1 / (1 - s);
+				float q2 = 1 / t;
+				float q3 = 1 / s;
+
+				float q = mix(
+							mix(q3, q2, a_TexCoord.x),
+							mix(q0, q1, a_TexCoord.x),
+							a_TexCoord.y
+							);
+							
+							
+				v_TexCoord.xy = a_TexCoord;
+				
+				#if MODE == 0
+				v_TexCoord -= 0.5;
+				v_TexCoord.x *= 0.5 / (0.5 - mix(g_Top, g_Bottom, step(0.5, a_TexCoord.y)));
+				v_TexCoord.y *= 0.5 / (0.5 - mix(g_Left, g_Right, step(0.5, a_TexCoord.x)));
+				v_TexCoord += 0.5;
+				#endif
+				
+				v_TexCoord.xy *= q;
+				v_TexCoord.z = q;
+				
+				
+			//}
+		//}
+	//}
+	
+	
+	gl_Position = mul(vec4(position, 1.0), g_ModelViewProjectionMatrix);
+	
+	
+	
+}