Home of the Open Source Delphi&C++Builder OpenGL tool. GLScene is an OpenGL based 3D library. . folder; Tortoise SVN: add the folder ” glscene” manually so you have lazarus/components/glscene. In GLScene the universe or 3D world is called a scene. We will learn how to start a basic GLScene application and how to control .. Tecplot User’s Manual.

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Formats supported mahual GLScene are bmp, jpg and tga. Glsccene is a vector that tells us which side if front and which side is back. Play around with it! When the polygon gets rendered possible surrounding lights are considered, the angle between face normal and direction to camera and lights is considered and the polygon is lit and textured according to shading model. Now you are ready to use GLScene! Remember that single precision is not accurate enough when working with high numbers or when you need extra precision.

Creating new class However GLScene is so complex that I find it rather difficult for anyone who never used it before to start learning.

There is a lot of theory about 3D graphics. Even if you are making freeware you still want users to be happy about it. This model is simplified gglscene the whole math is happening on binary level but you get the picture.

There is more to programming than just clean code. Children do not inherit scale value. You can change the width and height of both. You should now be able to compile and run many of the supplied examples, as detailed on the following page, but you do not yet have the visual components to drop onto a form.


It is colored and shaded with settings described by front and back properties.

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Double click on it in object inspector. This process has same rules like any other Delphi object. It is not a simple thing at all. Based on the old title I first thought that you are providing installation instruction for the Delphi itself.

It is sometimes difficult to find the function or procedure that you are looking for among the myriad of GLScene features. TGLPlane Plane is a single quad. Some components are visible at design time some are not.

PFX manager takes care about the way particles look like, how they move, how fast they are or how long they live. Environment objects By default background color of the scene is light gray. Their shape is described with mathematical equations. Example manuao spot light is a torch light.

You can change the width or mxnual of the cone. You need these modules: The time now is But that is not very practical. After successful compilation there will be four new component tabs. Children — Not shown in object inspector. Another interesting feature is minDeltaTime.

GLScene – Free Pascal wiki

Parent and owner are not the same. TagFloat — Similar to well known Tag value only it stores single. Transparent objects must always be rendered last otherwise you can get visual artifacts in the scene. Graph-plotting objects Object in this group are often used for scientific visualizations.


One object can have multiple colliders creating complex shape. Scene root refers to GLScene. At the beginning there will be only Scene root that contains Cameras and Scene objects. You can add more than one behaviors. Transparent textures are often used.

Boolean value called Active will represent status of the block. Enter the above CVS root. If you set value for minDeltaTime the scene will not progress until that time has passed even if all rendering is done. Text can have variable depth or Extrusion. If you are an experienced GLScene user you will probably find this document very simple but I would be happy for any feedback from you. Floating point numbers 6. We are going to use Round function to snap the cubes position on X grid.

It defines color of the object on direct light. You have to load a bitmap that contains letters arranged in rows and columns.

In classical Tetris the number of types and shape of blocks is defined. Page Tools Insert links Insert links to other pages or uploaded files. Lights do not cast shadows.

A transparent texture is usually used with sprites. Or King-Kong on top of two skyscrapers can throw the blocks down.