lovr.graphics.plane takes regular transform;

src/api/graphics.c

@@ -515,14 +515,9 @@ int l_lovrGraphicsPlane(lua_State* L) {
       return 0;
     }
   }
-  float x = luaL_optnumber(L, 2, 0.f);
-  float y = luaL_optnumber(L, 3, 0.f);
-  float z = luaL_optnumber(L, 4, 0.f);
-  float s = luaL_optnumber(L, 5, 1.f);
-  float nx = luaL_optnumber(L, 6, 0.f);
-  float ny = luaL_optnumber(L, 7, 1.f);
-  float nz = luaL_optnumber(L, 8, 0.f);
-  lovrGraphicsPlane(drawMode, texture, x, y, z, s, nx, ny, nz);
+  float transform[16];
+  luax_readtransform(L, 2, transform, 1);
+  lovrGraphicsPlane(drawMode, texture, transform);
   return 0;
 }
 

src/graphics/graphics.c

@@ -603,28 +603,7 @@ void lovrGraphicsTriangle(DrawMode mode, float* points) {
   }
 }
 
-void lovrGraphicsPlane(DrawMode mode, Texture* texture, float x, float y, float z, float size, float nx, float ny, float nz) {
-
-  // Normalize the normal vector
-  float len = sqrt(nx * nx + ny * ny + nz + nz);
-  if (len != 0) {
-    len = 1 / len;
-    nx *= len;
-    ny *= len;
-    nz *= len;
-  }
-
-  // Vector perpendicular to the normal vector and the vector of the default geometry (cross product)
-  float cx = -ny;
-  float cy = nx;
-  float cz = 0.f;
-
-  // Angle between normal vector and the normal vector of the default geometry (dot product)
-  float theta = acos(nz);
-
-  float transform[16];
-  mat4_setTransform(transform, x, y, z, size, size, size, theta, cx, cy, cz);
-
+void lovrGraphicsPlane(DrawMode mode, Texture* texture, mat4 transform) {
   lovrGraphicsPush();
   lovrGraphicsMatrixTransform(transform);
 

src/graphics/graphics.h

@@ -171,7 +171,7 @@ void lovrGraphicsDrawPrimitive(GLenum mode, int hasNormals, int hasTexCoords, in
 void lovrGraphicsPoints(float* points, int count);
 void lovrGraphicsLine(float* points, int count);
 void lovrGraphicsTriangle(DrawMode mode, float* points);
-void lovrGraphicsPlane(DrawMode mode, Texture* texture, float x, float y, float z, float size, float nx, float ny, float nz);
+void lovrGraphicsPlane(DrawMode mode, Texture* texture, mat4 transform);
 void lovrGraphicsPlaneFullscreen(Texture* texture);
 void lovrGraphicsBox(DrawMode mode, Texture* texture, mat4 transform);
 void lovrGraphicsCylinder(float x1, float y1, float z1, float x2, float y2, float z2, float r1, float r2, int capped, int segments);