CCanvas3D

CCanvas3D is a class for simplified creation and visualization of 3D objects on a chart.

Description

CCanvas3D greatly simplifies creation and visualization of large amounts of data in the form of animated 3D graphics. The class contains the methods for managing camera and lighting, as well as features the resource manager for creating graphic resources: textures, shaders, vertex buffers, indexes, and shader parameters.

Besides, the library contains the classes of the scene base objects, such as a box, a three-dimensional surface on user data, or an arbitrary grid.

A video card should support DX 11 and Shader Model 5.0 for the functions to work.

Declaration

class CCanvas

Title

#include <Canvas\Canvas.mqh>

Inheritance hierarchy

CCanvas

CCanvas3D

Class methods by groups

Creating/deleting	Description
Create	Creates a graphic resource for rendering a 3D scene without binding to a chart object.
Attach	Gets a graphical resource from the OBJ_BITMAP_LABEL object and attaches it to an instance of the CCanvas class.
ObjectAdd	Adds an object to a 3D scene for subsequent rendering.
Destroy	Destroys a graphic resource and releases a graphic 3D context.
Light
AmbientColorSet	Sets the color and intensity of the ambient all-round lighting.
AmbientColorGet	Gets the color and intensity of the ambient all-round lighting.
LightDirectionSet	Sets the direction of a directed light source.
LightDirectionGet	Gets the direction of a directed light source.
LightColorSet	Sets the color and intensity of a directed light source.
LightColorGet	Gets the color and intensity of a directed light source.
Camera
ProjectionMatrixSet	Calculates and sets a 3D coordinate projection matrix to a 2D frame.
ProjectionMatrixGet	Gets a 3D scene projection matrix to a 2D frame.
ViewMatrixSet	Sets a 3D scene view matrix.
ViewMatrixGet	Returns a 3D scene view matrix.
ViewPositionSet	Sets a viewpoint on a 3D scene.
ViewRotationSet	Sets the direction of a gaze at a 3D scene.
ViewTargetSet	Sets the coordinates of the point a gaze is directed at.
ViewUpDirectionSet	Sets the direction of the upper frame border in 3D space.
Rendering
Render	Renders all scene objects in the frame inner buffer for subsequent display.
RenderBegin	Prepares a graphic context for rendering a new frame.
RenderEnd	Copies a rendered frame to the inner buffer and updates a chart image if necessary.
Getting resources
DXContext	Gets the graphic context handle.
DXDispatcher	Gets the resource dispatcher handle.
InputScene	Gets the pointer to the buffer of scene parameters.

Last updated on 2026-07-24