diff --git a/drivers/gles3/shaders/canvas.glsl b/drivers/gles3/shaders/canvas.glsl
index abc287bd4..5c9eb88bf 100644
--- a/drivers/gles3/shaders/canvas.glsl
+++ b/drivers/gles3/shaders/canvas.glsl
@@ -513,7 +513,7 @@ FRAGMENT_SHADER_CODE
 #ifdef USE_LIGHTING

        vec2 light_vec = transformed_light_uv;
-       vec2 shadow_vec = light_uv_interp.zw;
+       vec2 shadow_vec = transformed_light_uv;

        if (normal_used) {
                normal.xy = mat2(local_rot.xy, local_rot.zw) * normal.xy;
@@ -561,6 +561,13 @@ FRAGMENT_SHADER_CODE

 #ifdef USE_SHADOWS

+               mat3 inverse_light_matrix = mat3(light_matrix);
+               inverse_light_matrix[0] = normalize(inverse_light_matrix[0]);
+               inverse_light_matrix[1] = normalize(inverse_light_matrix[1]);
+               inverse_light_matrix[2] = normalize(inverse_light_matrix[2]);
+
+               shadow_vec = (inverse_light_matrix * vec3(shadow_vec, 0.0)).xy;
+
                float angle_to_light = -atan(shadow_vec.x, shadow_vec.y);
                float PI = 3.14159265358979323846264;
                /*int i = int(mod(floor((angle_to_light+7.0*PI/6.0)/(4.0*PI/6.0))+1.0, 3.0)); // +1 pq os indices estao em ordem 2,0,1 nos arrays