{"id":238,"date":"2025-04-22T00:01:59","date_gmt":"2025-04-22T07:01:59","guid":{"rendered":"https:\/\/skchow.com\/indy\/?page_id=238"},"modified":"2025-04-22T00:12:04","modified_gmt":"2025-04-22T07:12:04","slug":"camera-files","status":"publish","type":"page","link":"https:\/\/skchow.com\/indy\/camera-files\/","title":{"rendered":"Camera files"},"content":{"rendered":"\n

Camera files<\/h1>\n\n\n\n

Overview<\/h2>\n\n\n\n

These file formats define how TV cameras are triggered and positioned in IndyCar Racing 2<\/em>. The .SCR<\/code> file controls when and where to switch cameras during a race (based on distance along the track), while the .CAM<\/code> file defines the spatial and behavioral properties of the cameras themselves.<\/p>\n\n\n\n

File Extensions Summary<\/h2>\n\n\n\n
Extension<\/th>Purpose<\/th><\/tr><\/thead>
.SCR<\/code><\/td>Camera trigger zones on the track<\/td><\/tr>
.CAM<\/code><\/td>Actual 3D camera properties<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

.SCR File \u2014 Camera Triggers<\/h2>\n\n\n\n

Purpose:<\/h3>\n\n\n\n

Specifies which camera to use depending on the car’s longitudinal position along the track (DLONG<\/code>), for TV1 or TV2 broadcast “views”.<\/p>\n\n\n\n

Binary Structure:<\/h3>\n\n\n\n
    \n
  • int32<\/code>: Number of views (usually 1<\/code> or 2<\/code>)<\/li>\n\n\n\n
  • int32[]<\/code>: Number of cameras per view (length = number of views)<\/li>\n\n\n\n
  • Camera entries: 4 int32<\/code> values per camera:\n
      \n
    1. Mark<\/code> \u2014 Camera type ID (corresponds to camera type in .CAM<\/code>, e.g., 6, 2, or 7)<\/li>\n\n\n\n
    2. Cam ID<\/code> \u2014 Index of the camera to activate (refers to .CAM<\/code>)<\/li>\n\n\n\n
    3. Start DLONG<\/code> \u2014 Start distance to trigger this camera<\/li>\n\n\n\n
    4. End DLONG<\/code> \u2014 End distance to stop using this camera<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n\n\n\n

      Notes:<\/h3>\n\n\n\n
        \n
      • Each view’s camera entries are grouped together sequentially.<\/li>\n\n\n\n
      • Total number of entries = sum of all cameras in all views.<\/li>\n\n\n\n
      • The Mark<\/code> field determines which type of camera this trigger activates, e.g., Type 6 (main), Type 2 (alt), or Type 7 (static).<\/li>\n<\/ul>\n\n\n\n

        Example:<\/h3>\n\n\n\n

        If num_views = 2<\/code> and the file starts with [2, 4, 5]<\/code>, it means:<\/p>\n\n\n\n

          \n
        • View 1 has 4 cameras<\/li>\n\n\n\n
        • View 2 has 5 cameras<\/li>\n\n\n\n
        • Followed by (4 + 5) * 4 = 36 int32<\/code> values representing camera triggers<\/li>\n<\/ul>\n\n\n\n

          .CAM File \u2014 Camera Definitions<\/h2>\n\n\n\n

          Purpose:<\/h3>\n\n\n\n

          Defines physical location, behavior, and characteristics of cameras.<\/p>\n\n\n\n

          Layout:<\/h3>\n\n\n\n

          The file is structured into three blocks of camera definitions:<\/p>\n\n\n\n

            \n
          1. Type 6<\/strong>: Dynamic main cameras<\/li>\n\n\n\n
          2. Type 2<\/strong>: Alternate dynamic cameras<\/li>\n\n\n\n
          3. Type 7<\/strong>: Static cameras with angle\/rotation<\/li>\n<\/ol>\n\n\n\n

            Each block starts with a count of cameras, followed by data for each.<\/p>\n\n\n\n

            \n\n\n\n

            Type 6 and Type 2 Cameras:<\/h3>\n\n\n\n
              \n
            • Count: int32<\/code><\/li>\n\n\n\n
            • Each camera: 9 int32<\/code> values<\/li>\n<\/ul>\n\n\n\n
              Index<\/th>Description<\/th><\/tr><\/thead>
              0<\/td>Middle DLONG (track pos)<\/td><\/tr>
              1<\/td>X position<\/td><\/tr>
              2<\/td>Y position<\/td><\/tr>
              3<\/td>Z position<\/td><\/tr>
              4<\/td>Start DLONG<\/td><\/tr>
              5<\/td>Start zoom<\/td><\/tr>
              6<\/td>Middle zoom<\/td><\/tr>
              7<\/td>End DLONG<\/td><\/tr>
              8<\/td>End zoom<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

              Type 7 Cameras:<\/h3>\n\n\n\n
                \n
              • Count: int32<\/code><\/li>\n\n\n\n
              • Each camera: 12 int32<\/code> values<\/li>\n<\/ul>\n\n\n\n
                Index<\/th>Description<\/th><\/tr><\/thead>
                0<\/td>Always zero? (padding)<\/td><\/tr>
                1<\/td>X position<\/td><\/tr>
                2<\/td>Y position<\/td><\/tr>
                3<\/td>Z position<\/td><\/tr>
                4<\/td>Z-axis rotation<\/td><\/tr>
                5<\/td>Vertical rotation<\/td><\/tr>
                6<\/td>Tilt<\/td><\/tr>
                7<\/td>Wide angle zoom and or wide zoom lens (per Tjerk’s tutorial)<\/td><\/tr>
                8\u201311<\/td>Reserved \/ zero<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

                General Notes<\/h2>\n\n\n\n
                  \n
                • .SCR<\/code> camera entries reference .CAM<\/code> entries by index (Cam ID<\/code>).<\/li>\n\n\n\n
                • DLONG<\/code> is the track distance measurement unit used in ICR2.<\/li>\n\n\n\n
                • Type 6\/2 cameras interpolate zooms and transitions along a path.<\/li>\n\n\n\n
                • Type 7 cameras are static.<\/li>\n<\/ul>\n\n\n\n

                  <\/h2>\n\n\n\n

                  <\/p>\n","protected":false},"excerpt":{"rendered":"

                  Camera files Overview These file formats define how TV cameras are triggered and positioned in IndyCar Racing 2. The .SCR file controls when and where to switch cameras during a race (based on distance along the track), while the .CAM file defines the spatial and behavioral properties of the cameras themselves. File Extensions Summary Extension […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-238","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/skchow.com\/indy\/wp-json\/wp\/v2\/pages\/238","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/skchow.com\/indy\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/skchow.com\/indy\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/skchow.com\/indy\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/skchow.com\/indy\/wp-json\/wp\/v2\/comments?post=238"}],"version-history":[{"count":6,"href":"https:\/\/skchow.com\/indy\/wp-json\/wp\/v2\/pages\/238\/revisions"}],"predecessor-version":[{"id":245,"href":"https:\/\/skchow.com\/indy\/wp-json\/wp\/v2\/pages\/238\/revisions\/245"}],"wp:attachment":[{"href":"https:\/\/skchow.com\/indy\/wp-json\/wp\/v2\/media?parent=238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}