Difference between revisions of "RenderTarget"
From GiderosMobile
(Created page with "__NOTOC__ '''Supported platforms:''' <br/> '''Available since:''' Gideros 2013.06<br/> === Description === RenderTarget is a texture on which provided Sprite hierarchy can be...") |
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__NOTOC__ | __NOTOC__ | ||
| − | '''Supported platforms:''' <br/> | + | <!-- GIDEROSOBJ:RenderTarget --> |
| + | '''Supported platforms:''' [[File:Platform android.png]][[File:Platform ios.png]][[File:Platform mac.png]][[File:Platform pc.png]][[File:Platform html5.png]][[File:Platform winrt.png]][[File:Platform win32.png]]<br/> | ||
'''Available since:''' Gideros 2013.06<br/> | '''Available since:''' Gideros 2013.06<br/> | ||
| + | '''Inherits from:''' [[TextureBase]]<br/> | ||
| + | |||
=== Description === | === Description === | ||
RenderTarget is a texture on which provided Sprite hierarchy can be rendered. | RenderTarget is a texture on which provided Sprite hierarchy can be rendered. | ||
| − | It can be used in any case in which Texture can be used.{|- | + | |
| − | | style="width: 50%;"| | + | It can be used in any case in which Texture can be used. |
| + | |||
| + | === Example === | ||
| + | '''Using a texture and updating RenderTarget''' | ||
| + | <syntaxhighlight lang="lua"> | ||
| + | --original bitmap | ||
| + | local source = Bitmap.new(Texture.new("crate.png", true)) | ||
| + | |||
| + | --render target | ||
| + | local rt = RenderTarget.new(source:getWidth(), source:getHeight()) | ||
| + | |||
| + | --bitmap with rendertarget as texture | ||
| + | local bmp = Bitmap.new(rt) | ||
| + | bmp:setPosition(200, 0) | ||
| + | stage:addChild(bmp) | ||
| + | |||
| + | --updating source updated Bitmap | ||
| + | local frame = 0 | ||
| + | stage:addEventListener(Event.ENTER_FRAME, function(event) | ||
| + | local r = math.sin(frame * 0.03) * 0.3 + 0.7 | ||
| + | local g = math.sin(frame * 0.04) * 0.3 + 0.7 | ||
| + | local b = math.sin(frame * 0.05) * 0.3 + 0.7 | ||
| + | source:setColorTransform(r, g, b, 1) | ||
| + | frame = frame + 1 | ||
| + | rt:draw(source) | ||
| + | end) | ||
| + | </syntaxhighlight> | ||
| + | |||
| + | {|- | ||
| + | | style="width: 50%; vertical-align:top;"| | ||
=== Methods === | === Methods === | ||
| − | | style="width: 50%;"| | + | [[RenderTarget.new]] ''creates a new RenderTarget object''<br/><!--GIDEROSMTD:RenderTarget.new(width,height,filtering,repeat,autoscale) creates a new RenderTarget object--> |
| + | [[RenderTarget:clear]] ''clears rendered texture''<br/><!--GIDEROSMTD:RenderTarget:clear(color,alpha,x,y,width,height) clears rendered texture--> | ||
| + | [[RenderTarget:draw]] ''renders provided object''<br/><!--GIDEROSMTD:RenderTarget:draw(sprite,x,y) renders provided object--> | ||
| + | [[RenderTarget:generateMipmap]] ''recomputes mipmaps''<br/><!--GIDEROSMTD:RenderTarget:generateMipmap() recomputes mipmaps--> | ||
| + | [[RenderTarget:getPixel]] ''returns single pixels color and alpha channel''<br/><!--GIDEROSMTD:RenderTarget:getPixel(x,y) returns single pixels color and alpha channel--> | ||
| + | [[RenderTarget:getPixels]] ''returns buffer containing color and alpha data from provided rectangle''<br/><!--GIDEROSMTD:RenderTarget:getPixels(x,y,w,h) returns buffer containing color and alpha data from provided rectangle--> | ||
| + | [[RenderTarget:save]] ''saves content of RenderTarget as image''<br/><!--GIDEROSMTD:RenderTarget:save(filename,x,y,width,height) saves content of RenderTarget as image--> | ||
| + | |||
| + | | style="width: 50%; vertical-align:top;"| | ||
=== Events === | === Events === | ||
=== Constants === | === Constants === | ||
|} | |} | ||
| + | |||
| + | {{GIDEROS IMPORTANT LINKS}} | ||
Latest revision as of 12:56, 30 April 2024
Supported platforms: 
Available since: Gideros 2013.06
Inherits from: TextureBase
Description
RenderTarget is a texture on which provided Sprite hierarchy can be rendered.
It can be used in any case in which Texture can be used.
Example
Using a texture and updating RenderTarget
--original bitmap
local source = Bitmap.new(Texture.new("crate.png", true))
--render target
local rt = RenderTarget.new(source:getWidth(), source:getHeight())
--bitmap with rendertarget as texture
local bmp = Bitmap.new(rt)
bmp:setPosition(200, 0)
stage:addChild(bmp)
--updating source updated Bitmap
local frame = 0
stage:addEventListener(Event.ENTER_FRAME, function(event)
local r = math.sin(frame * 0.03) * 0.3 + 0.7
local g = math.sin(frame * 0.04) * 0.3 + 0.7
local b = math.sin(frame * 0.05) * 0.3 + 0.7
source:setColorTransform(r, g, b, 1)
frame = frame + 1
rt:draw(source)
end)
MethodsRenderTarget.new creates a new RenderTarget object |
EventsConstants |
