diff --git a/tools/rlparser/output/raylib_api.json b/tools/rlparser/output/raylib_api.json
index b42fd2d61..915d5c665 100644
--- a/tools/rlparser/output/raylib_api.json
+++ b/tools/rlparser/output/raylib_api.json
@@ -5489,7 +5489,7 @@
         },
         {
           "type": "Rectangle",
-          "name": "source"
+          "name": "rec"
         }
       ]
     },
@@ -8913,7 +8913,7 @@
         },
         {
           "type": "Rectangle",
-          "name": "source"
+          "name": "rec"
         },
         {
           "type": "Vector2",
@@ -8927,7 +8927,7 @@
     },
     {
       "name": "DrawTexturePro",
-      "description": "Draw a part of a texture defined by a rectangle with 'pro' parameters",
+      "description": "Draw a part of a texture defined by a source rectangle to destination rectangle, with scaling and rotation",
       "returnType": "void",
       "params": [
         {
@@ -8936,11 +8936,11 @@
         },
         {
           "type": "Rectangle",
-          "name": "source"
+          "name": "srcrec"
         },
         {
           "type": "Rectangle",
-          "name": "dest"
+          "name": "dstrec"
         },
         {
           "type": "Vector2",
@@ -8971,7 +8971,7 @@
         },
         {
           "type": "Rectangle",
-          "name": "dest"
+          "name": "dstrec"
         },
         {
           "type": "Vector2",
@@ -10983,7 +10983,7 @@
     },
     {
       "name": "DrawBillboardRec",
-      "description": "Draw a billboard texture defined by source",
+      "description": "Draw a billboard texture defined by rectangle",
       "returnType": "void",
       "params": [
         {
@@ -10996,7 +10996,7 @@
         },
         {
           "type": "Rectangle",
-          "name": "source"
+          "name": "rec"
         },
         {
           "type": "Vector3",
@@ -11014,7 +11014,7 @@
     },
     {
       "name": "DrawBillboardPro",
-      "description": "Draw a billboard texture defined by source and rotation",
+      "description": "Draw a billboard texture defined by source rectangle with scaling and rotation",
       "returnType": "void",
       "params": [
         {
@@ -11027,7 +11027,7 @@
         },
         {
           "type": "Rectangle",
-          "name": "source"
+          "name": "rec"
         },
         {
           "type": "Vector3",
diff --git a/tools/rlparser/output/raylib_api.lua b/tools/rlparser/output/raylib_api.lua
index 859ef38ba..d784cb768 100644
--- a/tools/rlparser/output/raylib_api.lua
+++ b/tools/rlparser/output/raylib_api.lua
@@ -4752,7 +4752,7 @@ return {
       returnType = "void",
       params = {
         {type = "Texture2D", name = "texture"},
-        {type = "Rectangle", name = "source"}
+        {type = "Rectangle", name = "rec"}
       }
     },
     {
@@ -6475,19 +6475,19 @@ return {
       returnType = "void",
       params = {
         {type = "Texture2D", name = "texture"},
-        {type = "Rectangle", name = "source"},
+        {type = "Rectangle", name = "rec"},
         {type = "Vector2", name = "position"},
         {type = "Color", name = "tint"}
       }
     },
     {
       name = "DrawTexturePro",
-      description = "Draw a part of a texture defined by a rectangle with 'pro' parameters",
+      description = "Draw a part of a texture defined by a source rectangle to destination rectangle, with scaling and rotation",
       returnType = "void",
       params = {
         {type = "Texture2D", name = "texture"},
-        {type = "Rectangle", name = "source"},
-        {type = "Rectangle", name = "dest"},
+        {type = "Rectangle", name = "srcrec"},
+        {type = "Rectangle", name = "dstrec"},
         {type = "Vector2", name = "origin"},
         {type = "float", name = "rotation"},
         {type = "Color", name = "tint"}
@@ -6500,7 +6500,7 @@ return {
       params = {
         {type = "Texture2D", name = "texture"},
         {type = "NPatchInfo", name = "nPatchInfo"},
-        {type = "Rectangle", name = "dest"},
+        {type = "Rectangle", name = "dstrec"},
         {type = "Vector2", name = "origin"},
         {type = "float", name = "rotation"},
         {type = "Color", name = "tint"}
@@ -7572,12 +7572,12 @@ return {
     },
     {
       name = "DrawBillboardRec",
-      description = "Draw a billboard texture defined by source",
+      description = "Draw a billboard texture defined by rectangle",
       returnType = "void",
       params = {
         {type = "Camera", name = "camera"},
         {type = "Texture2D", name = "texture"},
-        {type = "Rectangle", name = "source"},
+        {type = "Rectangle", name = "rec"},
         {type = "Vector3", name = "position"},
         {type = "Vector2", name = "size"},
         {type = "Color", name = "tint"}
@@ -7585,12 +7585,12 @@ return {
     },
     {
       name = "DrawBillboardPro",
-      description = "Draw a billboard texture defined by source and rotation",
+      description = "Draw a billboard texture defined by source rectangle with scaling and rotation",
       returnType = "void",
       params = {
         {type = "Camera", name = "camera"},
         {type = "Texture2D", name = "texture"},
-        {type = "Rectangle", name = "source"},
+        {type = "Rectangle", name = "rec"},
         {type = "Vector3", name = "position"},
         {type = "Vector3", name = "up"},
         {type = "Vector2", name = "size"},
diff --git a/tools/rlparser/output/raylib_api.txt b/tools/rlparser/output/raylib_api.txt
index 0051c6a14..11f23d80a 100644
--- a/tools/rlparser/output/raylib_api.txt
+++ b/tools/rlparser/output/raylib_api.txt
@@ -2182,7 +2182,7 @@ Function 219: SetShapesTexture() (2 input parameters)
   Return type: void
   Description: Set texture and rectangle to be used on shapes drawing
   Param[1]: texture (type: Texture2D)
-  Param[2]: source (type: Rectangle)
+  Param[2]: rec (type: Rectangle)
 Function 220: GetShapesTexture() (0 input parameters)
   Name: GetShapesTexture
   Return type: Texture2D
@@ -3416,16 +3416,16 @@ Function 385: DrawTextureRec() (4 input parameters)
   Return type: void
   Description: Draw a part of a texture defined by a rectangle
   Param[1]: texture (type: Texture2D)
-  Param[2]: source (type: Rectangle)
+  Param[2]: rec (type: Rectangle)
   Param[3]: position (type: Vector2)
   Param[4]: tint (type: Color)
 Function 386: DrawTexturePro() (6 input parameters)
   Name: DrawTexturePro
   Return type: void
-  Description: Draw a part of a texture defined by a rectangle with 'pro' parameters
+  Description: Draw a part of a texture defined by a source rectangle to destination rectangle, with scaling and rotation
   Param[1]: texture (type: Texture2D)
-  Param[2]: source (type: Rectangle)
-  Param[3]: dest (type: Rectangle)
+  Param[2]: srcrec (type: Rectangle)
+  Param[3]: dstrec (type: Rectangle)
   Param[4]: origin (type: Vector2)
   Param[5]: rotation (type: float)
   Param[6]: tint (type: Color)
@@ -3435,7 +3435,7 @@ Function 387: DrawTextureNPatch() (6 input parameters)
   Description: Draw a texture (or part of it) that stretches or shrinks nicely
   Param[1]: texture (type: Texture2D)
   Param[2]: nPatchInfo (type: NPatchInfo)
-  Param[3]: dest (type: Rectangle)
+  Param[3]: dstrec (type: Rectangle)
   Param[4]: origin (type: Vector2)
   Param[5]: rotation (type: float)
   Param[6]: tint (type: Color)
@@ -4185,20 +4185,20 @@ Function 495: DrawBillboard() (5 input parameters)
 Function 496: DrawBillboardRec() (6 input parameters)
   Name: DrawBillboardRec
   Return type: void
-  Description: Draw a billboard texture defined by source
+  Description: Draw a billboard texture defined by rectangle
   Param[1]: camera (type: Camera)
   Param[2]: texture (type: Texture2D)
-  Param[3]: source (type: Rectangle)
+  Param[3]: rec (type: Rectangle)
   Param[4]: position (type: Vector3)
   Param[5]: size (type: Vector2)
   Param[6]: tint (type: Color)
 Function 497: DrawBillboardPro() (9 input parameters)
   Name: DrawBillboardPro
   Return type: void
-  Description: Draw a billboard texture defined by source and rotation
+  Description: Draw a billboard texture defined by source rectangle with scaling and rotation
   Param[1]: camera (type: Camera)
   Param[2]: texture (type: Texture2D)
-  Param[3]: source (type: Rectangle)
+  Param[3]: rec (type: Rectangle)
   Param[4]: position (type: Vector3)
   Param[5]: up (type: Vector3)
   Param[6]: size (type: Vector2)
diff --git a/tools/rlparser/output/raylib_api.xml b/tools/rlparser/output/raylib_api.xml
index fdc1481ec..11ba9fccb 100644
--- a/tools/rlparser/output/raylib_api.xml
+++ b/tools/rlparser/output/raylib_api.xml
@@ -1352,7 +1352,7 @@
         </Function>
         <Function name="SetShapesTexture" retType="void" paramCount="2" desc="Set texture and rectangle to be used on shapes drawing">
             <Param type="Texture2D" name="texture" desc="" />
-            <Param type="Rectangle" name="source" desc="" />
+            <Param type="Rectangle" name="rec" desc="" />
         </Function>
         <Function name="GetShapesTexture" retType="Texture2D" paramCount="0" desc="Get texture that is used for shapes drawing">
         </Function>
@@ -2251,14 +2251,14 @@
         </Function>
         <Function name="DrawTextureRec" retType="void" paramCount="4" desc="Draw a part of a texture defined by a rectangle">
             <Param type="Texture2D" name="texture" desc="" />
-            <Param type="Rectangle" name="source" desc="" />
+            <Param type="Rectangle" name="rec" desc="" />
             <Param type="Vector2" name="position" desc="" />
             <Param type="Color" name="tint" desc="" />
         </Function>
-        <Function name="DrawTexturePro" retType="void" paramCount="6" desc="Draw a part of a texture defined by a rectangle with 'pro' parameters">
+        <Function name="DrawTexturePro" retType="void" paramCount="6" desc="Draw a part of a texture defined by a source rectangle to destination rectangle, with scaling and rotation">
             <Param type="Texture2D" name="texture" desc="" />
-            <Param type="Rectangle" name="source" desc="" />
-            <Param type="Rectangle" name="dest" desc="" />
+            <Param type="Rectangle" name="srcrec" desc="" />
+            <Param type="Rectangle" name="dstrec" desc="" />
             <Param type="Vector2" name="origin" desc="" />
             <Param type="float" name="rotation" desc="" />
             <Param type="Color" name="tint" desc="" />
@@ -2266,7 +2266,7 @@
         <Function name="DrawTextureNPatch" retType="void" paramCount="6" desc="Draw a texture (or part of it) that stretches or shrinks nicely">
             <Param type="Texture2D" name="texture" desc="" />
             <Param type="NPatchInfo" name="nPatchInfo" desc="" />
-            <Param type="Rectangle" name="dest" desc="" />
+            <Param type="Rectangle" name="dstrec" desc="" />
             <Param type="Vector2" name="origin" desc="" />
             <Param type="float" name="rotation" desc="" />
             <Param type="Color" name="tint" desc="" />
@@ -2797,18 +2797,18 @@
             <Param type="float" name="scale" desc="" />
             <Param type="Color" name="tint" desc="" />
         </Function>
-        <Function name="DrawBillboardRec" retType="void" paramCount="6" desc="Draw a billboard texture defined by source">
+        <Function name="DrawBillboardRec" retType="void" paramCount="6" desc="Draw a billboard texture defined by rectangle">
             <Param type="Camera" name="camera" desc="" />
             <Param type="Texture2D" name="texture" desc="" />
-            <Param type="Rectangle" name="source" desc="" />
+            <Param type="Rectangle" name="rec" desc="" />
             <Param type="Vector3" name="position" desc="" />
             <Param type="Vector2" name="size" desc="" />
             <Param type="Color" name="tint" desc="" />
         </Function>
-        <Function name="DrawBillboardPro" retType="void" paramCount="9" desc="Draw a billboard texture defined by source and rotation">
+        <Function name="DrawBillboardPro" retType="void" paramCount="9" desc="Draw a billboard texture defined by source rectangle with scaling and rotation">
             <Param type="Camera" name="camera" desc="" />
             <Param type="Texture2D" name="texture" desc="" />
-            <Param type="Rectangle" name="source" desc="" />
+            <Param type="Rectangle" name="rec" desc="" />
             <Param type="Vector3" name="position" desc="" />
             <Param type="Vector3" name="up" desc="" />
             <Param type="Vector2" name="size" desc="" />