This is a demonstration of some aspects of OpenGL and SDL that I have learned. I shall be updating the demonstration probably on a weekly basis.<\/p>\n
- \n
- Test 1 = Inner Solar System<\/a><\/li>\n
- Test 2 = Room\/Street<\/a><\/li>\n
- Test 3 = Stars<\/a><\/li>\n
- Test 4 – Octree’s<\/a><\/li>\n<\/ul>\n
Inner Solar System<\/strong><\/a><\/p>\n
The movement has been implemented so that the mouse moves the screen center point, with the mouse left\/right button moving the eye\t position backwards\/forwarding accordlying.<\/p>\n
Linux Download here (Binary)<\/a>\t <\/p>\n
I shall include the source code once I have got it in a nice format<\/small><\/p>\n
This is a screen shot of the demostration
![\"Inner](\"http:\/\/www.codingfriends.com\/wp-content\/uploads\/2009\/07\/sdlt1.png\" "\\"Inner")
<\/a>Inner Solar System (OpenGL + SDL)<\/figcaption><\/figure><\/p>\n Room\/Street<\/strong><\/a><\/p>\n
This is a demostration of a 3D room, with the same movement with the mouse as above. At the minute there is only a room, but I shall be implementing a street and also collision detection.<\/p>\n
Linux Download here (Binary)<\/a><\/p>\n
I shall include the source code once I have got it in a nice format<\/small><\/p>\n
This is a screen shot of the Room\/Street, the top left part of the image is the room from the outside with the rest of the picture the inside of the room.
\t![\"Room](\"http:\/\/www.codingfriends.com\/wp-content\/uploads\/2009\/07\/RoomTest1.jpg\" "\\"Room")
<\/a>Room test (OpenGL + SDL)<\/figcaption><\/figure><\/p>\n Stars<\/strong><\/a><\/p>\n
This demonstration of stars is a test to see how to get the frustum<\/a> rule to work. The frustum rule is that you are looking at through the top of a pyramid, this allows only the details that you can see are sent to the graphics card, thus allowing for speed increase.<\/p>\n
The screen shot of the stars demostartion is just basically stars of different colours on a black backdrop. So could not see a reason for displaying this.
\n\t \tLinux source download with KDevelop files<\/a>
\n\t\tLinux Download here (Binary)<\/a><\/p>\nOctree’s<\/strong><\/a><\/p>\n
A basic definition of the Octree idea is here<\/a><\/p>\n
![\"Octree](\"http:\/\/www.codingfriends.com\/wp-content\/uploads\/2009\/07\/octree2.png\" "\\"Octree")
<\/a>Octree (OpenGL + SDL)<\/figcaption><\/figure>\n The basic idea of Octree’s is to free up the bus to the graphics card. This is achieved with only sending data that is in view (with the frustum<\/a> law above) but instead of checking every point inside the 3d area, split the 3d area into blocks of 8 (octree’s) and only test if any of the 8 blocks are in view and thus send the data that is associated with the viewable blocks to the graphics card.<\/p>\n
\t\tLinux exectable (Binary)<\/a>
\n\t\tLinux source code (KDevelop files)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"I am currently working on learning and developing a 2D\/3D game. The 3D game look will be something like that of FPS (First Person Shooter) e.g. KingPin, Unreal Tourment, but the first game will be a 2D game scrolling game. I am in the learning process of openGL and SDL OpenGL SDL (Simple DirectMedia Library) … Continue reading 2D\/3D – Game<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":34,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-239","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/pages\/239","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/comments?post=239"}],"version-history":[{"count":12,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/pages\/239\/revisions"}],"predecessor-version":[{"id":243,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/pages\/239\/revisions\/243"}],"up":[{"embeddable":true,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/pages\/34"}],"wp:attachment":[{"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/media?parent=239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- Test 2 = Room\/Street<\/a><\/li>\n