Dash dash baby

shaders/warp_shader.gdshader

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+// Thanks YouTube and DevPoodle
+// https://www.youtube.com/watch?v=E401x98N6iA
+
+shader_type canvas_item;
+render_mode unshaded, skip_vertex_transform;
+
+const float curvature = 3.2;
+
+uniform sampler2D screen_texture: hint_screen_texture;
+
+void fragment() {
+	vec2 centered_uv = SCREEN_UV * 2.0 - 1.0;
+	vec2 uv_offset = centered_uv.yx / curvature;
+	vec2 warped_uv = centered_uv + centered_uv * uv_offset * uv_offset;
+	vec3 cutoff = vec3(step(abs(warped_uv.x), 1.0) * step(abs(warped_uv.y), 1.0));
+	
+	vec3 screen_color = texture(screen_texture, (warped_uv + 1.0) / 2.0).rgb;
+	//COLOR = vec4(warped_uv, 0.0, 1.0);
+	COLOR = texture(screen_texture, (warped_uv + 1.0) / 2.0);
+}

shaders/warp_shader.gdshader.uid

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+uid://mmf86jusrkrr