Revision as of 10:54, 25 February 2015

[toc align_right="yes" depth="3"]

Qt3D Scene Structure and Elements

Renderer elements

The Renderer aspect defines its own set of elements.

Nodes

===== * Effect Specifies a list of techniques and default values to be used by the renderer to properly assign shaders and uniforms. =====

===== * RenderPass Specifies the ShaderProgram o be used for a pass of a technique. The render pass should have a name. =====

===== * Technique Contains a list of RenderPass elements. =====

===== * ShaderProgram Has paths pointing to fragment and vertex shader sources. =====

http://i58.tinypic.com/35n0osi.png

FrameGraphItems

Only a single framegraph can be used at any moment for the rendering of the scene.

===== * Viewport Defines the viewport rectangle to be used.Note : The viewport rectangle is defined from top left unlike OpenGL which defines it from bottom left. =====

===== * CameraSelector Defines the camera entity to be used. =====

===== * RenderPassFilter Defines the name of the RenderPass to be used. =====

===== * RenderTargetSelector To be done - Defines the RenderTarget (Texture/FBO/Screen) =====

===== * TechniqueFilter Defines the name of the technique to be used. =====

http://i59.tinypic.com/2885yit.png

Entity

===== * Scene

Has a source property that can be set to the path of a 3D scene file to be loaded into the current scenegraph tree. =====

Components

===== * Mesh Specifies the path toward a mesh source file. =====

===== * Material Specifies an Effect and may override uniforms set by the Effect to be used by the Techniques' ShaderPrograms Also specifies the textures. =====

===== * Shape Can be a shaper of one of the types : ' Cube ' Sphere ' Cylinder ' Torus Additional properties allow to further define the shape and its precision. =====

 Mesh {
 id: ballMesh
 objectName: "ballMesh"
 source: ":/assets/ball.obj"
 }

Material {
 id: ballMaterial
 objectName: "ballMaterial"
 // effect: adsEffect

// Custom properties go here
 }

Entity {
 id: ball
 objectName: "ball"

property Transform transform: Transform {
 Translate{ dx: 0; dy: –10; dz : 25 }
 Scale {scale : 0.1}
 }
 property Mesh mesh: ballMesh
 property Material material: ballMaterial
 }

==== * FrameGraph Defines the tree of FrameGraphItems to be used as the rendering pipeline. ====

import Qt3D 2.0 import Qt3D.Render 2.0

TechniqueFilter {

property alias viewportRect: viewport.rect

property alias cameraViewportTopRight: cameraSelectorTopRight.camera
property alias cameraViewportBottomLeft: cameraSelectorBottomLeft.camera

tags: [

Tag { name: "style"; value: "forward"}
]

Viewport {

id: viewport
objectName : "viewport"
rect: Qt.rect(0.0, 0.0, 1.0, 1.0) // From Top Left

Viewport {

id : top_right_viewport
rect: Qt.rect(0.5, 0, 0.5, 0.5)
CameraSelector {
RenderPassFilter { renderPassName: "zFill" }
RenderPassFilter { renderPassName: "lighting" }
}
}

Viewport {

id : bottom_left_viewport
rect: Qt.rect(0.0, 0.5, 0.5, 0.5)
CameraSelector {
RenderPassFilter { renderPassName: "zFill" }
RenderPassFilter { renderPassName: "lighting" }
}
}
}

@@ Line 1: / Line 1: @@
-[[Category:Developing_with_Qt::Qt3D:Qt3D_wip_newapi_Overview ]]<br />[toc align_right=&quot;yes&amp;quot; depth=&quot;3&amp;quot;]
+[[Category:Developing_with_Qt::Qt3D:Qt3D_wip_newapi_Overview ]]
+[toc align_right="yes" depth="3"]
 = Qt3D Scene Structure and Elements =
@@ Line 9: / Line 10: @@
 === Nodes ===
-===== * '''Effect'''<br />Specifies a list of techniques and default values to be used by the renderer to properly assign shaders and uniforms. =====
+===== * '''Effect'''
+Specifies a list of techniques and default values to be used by the renderer to properly assign shaders and uniforms. =====
-===== * '''RenderPass'''<br />Specifies the ShaderProgram o be used for a pass of a technique.<br />The render pass should have a name. =====
+===== * '''RenderPass'''
+Specifies the ShaderProgram o be used for a pass of a technique.
+The render pass should have a name. =====
-===== * '''Technique'''<br />Contains a list of RenderPass elements. =====
+===== * '''Technique'''
+Contains a list of RenderPass elements. =====
-===== * '''ShaderProgram'''<br />Has paths pointing to fragment and vertex shader sources. =====
+===== * '''ShaderProgram'''
+Has paths pointing to fragment and vertex shader sources. =====
 [[Image:http://i58.tinypic.com/35n0osi.png|http://i58.tinypic.com/35n0osi.png]]
@@ Line 23: / Line 29: @@
 Only a single framegraph can be used at any moment for the rendering of the scene.
-===== * '''Viewport'''<br />Defines the viewport rectangle to be used.'''Note :''' The viewport rectangle is defined from top left unlike OpenGL which defines it from bottom left. =====
+===== * '''Viewport'''
+Defines the viewport rectangle to be used.'''Note :''' The viewport rectangle is defined from top left unlike OpenGL which defines it from bottom left. =====
-===== * '''CameraSelector'''<br />Defines the camera entity to be used. =====
+===== * '''CameraSelector'''
+Defines the camera entity to be used. =====
-===== * '''RenderPassFilter'''<br />Defines the name of the RenderPass to be used. =====
+===== * '''RenderPassFilter'''
+Defines the name of the RenderPass to be used. =====
-===== * '''RenderTargetSelector'''<br />To be done - Defines the RenderTarget (Texture/FBO/Screen) =====
+===== * '''RenderTargetSelector'''
+To be done - Defines the RenderTarget (Texture/FBO/Screen) =====
-===== * '''TechniqueFilter'''<br />Defines the name of the technique to be used. =====
+===== * '''TechniqueFilter'''
+Defines the name of the technique to be used. =====
 [[Image:http://i59.tinypic.com/2885yit.png|http://i59.tinypic.com/2885yit.png]]
@@ Line 37: / Line 48: @@
 === Entity ===
-===== * '''Scene'''<br /> Has a source property that can be set to the path of a 3D scene file to be loaded into the current scenegraph tree. =====
+===== * '''Scene'''
+ Has a source property that can be set to the path of a 3D scene file to be loaded into the current scenegraph tree. =====
 === Components ===
-===== * '''Mesh'''<br />Specifies the path toward a mesh source file. =====
+===== * '''Mesh'''
+Specifies the path toward a mesh source file. =====
-===== * '''Material'''<br />Specifies an Effect and may override uniforms set by the Effect to be used<br />by the Techniques' ShaderPrograms<br />Also specifies the textures. =====
+===== * '''Material'''
+Specifies an Effect and may override uniforms set by the Effect to be used
+by the Techniques' ShaderPrograms
+Also specifies the textures. =====
-===== * '''Shape'''<br />Can be a shaper of one of the types :<br />'''''' Cube<br />'''''' Sphere<br />'''''' Cylinder<br />'''''' Torus<br />Additional properties allow to further define the shape and its precision. =====
+===== * '''Shape'''
+Can be a shaper of one of the types :
+'''''' Cube
+'''''' Sphere
+'''''' Cylinder
+'''''' Torus
+Additional properties allow to further define the shape and its precision. =====
-<code><br /> Mesh {<br /> id: ballMesh<br /> objectName: &quot;ballMesh&amp;quot;<br /> source: &quot;:/assets/ball.obj&amp;quot;<br /> }
+<code>
+ Mesh {
+ id: ballMesh
+ objectName: "ballMesh"
+ source: ":/assets/ball.obj"
+ }
-Material {<br /> id: ballMaterial<br /> objectName: &quot;ballMaterial&amp;quot;<br /> // effect: adsEffect
+Material {
+ id: ballMaterial
+ objectName: "ballMaterial"
+ // effect: adsEffect
-// Custom properties go here<br /> }
+// Custom properties go here
+ }
-Entity {<br /> id: ball<br /> objectName: &quot;ball&amp;quot;
+Entity {
+ id: ball
+ objectName: "ball"
-property Transform transform: Transform {<br /> Translate{ dx: 0; dy: –10; dz : 25 }<br /> Scale {scale : 0.1}<br /> }<br /> property Mesh mesh: ballMesh<br /> property Material material: ballMaterial<br /> }</code>
+property Transform transform: Transform {
+ Translate{ dx: 0; dy: –10; dz : 25 }
+ Scale {scale : 0.1}
+ }
+ property Mesh mesh: ballMesh
+ property Material material: ballMaterial
+ }</code>
-==== * '''FrameGraph'''<br />Defines the tree of FrameGraphItems to be used as the rendering pipeline. ====
+==== * '''FrameGraph'''
+Defines the tree of FrameGraphItems to be used as the rendering pipeline. ====
-<code>import Qt3D 2.0<br />import Qt3D.Render 2.0
+<code>import Qt3D 2.0
+import Qt3D.Render 2.0
 TechniqueFilter {
-property alias viewportRect: viewport.rect<br /> property alias cameraViewportTopRight: cameraSelectorTopRight.camera<br /> property alias cameraViewportBottomLeft: cameraSelectorBottomLeft.camera
+property alias viewportRect: viewport.rect
+ property alias cameraViewportTopRight: cameraSelectorTopRight.camera
+ property alias cameraViewportBottomLeft: cameraSelectorBottomLeft.camera
-tags: [<br /> Tag { name: &quot;style&amp;quot;; value: &quot;forward&amp;quot;}<br /> ]
+tags: [
+ Tag { name: "style"; value: "forward"}
+ ]
-Viewport {<br /> id: viewport<br /> objectName : &quot;viewport&amp;quot;<br /> rect: Qt.rect(0.0, 0.0, 1.0, 1.0) // From Top Left
+Viewport {
+ id: viewport
+ objectName : "viewport"
+ rect: Qt.rect(0.0, 0.0, 1.0, 1.0) // From Top Left
-Viewport {<br /> id : top_right_viewport<br /> rect: Qt.rect(0.5, 0, 0.5, 0.5)<br /> CameraSelector {<br /> RenderPassFilter { renderPassName: &quot;zFill&amp;quot; }<br /> RenderPassFilter { renderPassName: &quot;lighting&amp;quot; }<br /> }<br /> }
+Viewport {
+ id : top_right_viewport
+ rect: Qt.rect(0.5, 0, 0.5, 0.5)
+ CameraSelector {
+ RenderPassFilter { renderPassName: "zFill" }
+ RenderPassFilter { renderPassName: "lighting" }
+ }
+ }
-Viewport {<br /> id : bottom_left_viewport<br /> rect: Qt.rect(0.0, 0.5, 0.5, 0.5)<br /> CameraSelector {<br /> RenderPassFilter { renderPassName: &quot;zFill&amp;quot; }<br /> RenderPassFilter { renderPassName: &quot;lighting&amp;quot; }<br /> }<br /> }<br /> }<br />}
+Viewport {
+ id : bottom_left_viewport
+ rect: Qt.rect(0.0, 0.5, 0.5, 0.5)
+ CameraSelector {
+ RenderPassFilter { renderPassName: "zFill" }
+ RenderPassFilter { renderPassName: "lighting" }
+ }
+ }
+ }
+}

Qt3D Renderer Elements: Difference between revisions

Revision as of 10:54, 25 February 2015

Contents

Qt3D Scene Structure and Elements

Renderer elements

Nodes

FrameGraphItems

Entity

Components

Navigation menu

Qt3D Renderer Elements: Difference between revisions

Revision as of 10:54, 25 February 2015

Qt3D Scene Structure and Elements

Renderer elements

Nodes

FrameGraphItems

Entity

Components

Navigation menu

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