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Blendmode example refine.

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This commit is contained in:
jussi
2025-02-10 21:58:45 +02:00
parent 721ef97f16
commit a1bc76d7fd
1 changed files with 24 additions and 5 deletions
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29
examples/blend_modes/main.lua
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@@ -1,6 +1,7 @@
package.path = package.path..";"..RL.GetBasePath().."../resources/lib/?.lua"
Vector2 = require( "vector2" )
Rect = require( "rectangle" )
local monitor = 0
local winSize = Vector2:new( 1920, 1080 )
@@ -14,6 +15,10 @@ local buttonSize = Vector2:new( 20, 20 )
local fontSize = 20
local textTint = RL.BLACK
local guiRect = Rect:new( 0, 0, 550, 210 )
local lightPos = Vector2:new()
local lightPos2 = Vector2:new()
local framebuffer = nil
local blendMode = {
@@ -93,9 +98,22 @@ function RL.init()
lightTexSize:setT( RL.GetTextureSize( lightTex ) )
framebuffer = RL.LoadRenderTexture( winSize )
lightPos:setV( winSize:scale( 0.5 ) - lightTexSize:scale( 0.5 ) )
lightPos2:setV( winSize:scale( 0.5 ) - lightTexSize:scale( 0.5 ) )
end
function RL.update( delta )
local mousePos = Vector2:newT( RL.GetMousePosition() )
if not RL.CheckCollisionPointRec( mousePos, guiRect ) then
if RL.IsMouseButtonDown( RL.MOUSE_BUTTON_LEFT ) then
lightPos:setV( mousePos - lightTexSize:scale( 0.5 ) )
end
if RL.IsMouseButtonDown( RL.MOUSE_BUTTON_RIGHT ) then
lightPos2:setV( mousePos - lightTexSize:scale( 0.5 ) )
end
end
end
local function drawControl( pos, t, name )
@@ -130,11 +148,12 @@ local function drawControls()
drawControl( pos, blendFactor, "srcAlpha" )
drawControl( pos, blendFactor, "dstAlpha" )
drawControl( pos, blendFunction, "eqAlpha" )
pos.y = pos.y + 8
RL.DrawText( "Set texture positions with mouse right and left.", pos, 20, RL.BLACK )
end
function RL.draw()
local mousePos = Vector2:newT( RL.GetMousePosition() )
RL.ClearBackground( RL.BLACK )
if framebuffer then
@@ -161,7 +180,8 @@ function RL.draw()
blendFunction.options[ blendFunction.eqAlpha ].value
)
RL.BeginBlendMode( blendMode.options[ blendMode.mode ].value )
RL.DrawTexture( lightTex, mousePos - lightTexSize:scale( 0.5 ), RL.WHITE )
RL.DrawTexture( lightTex, lightPos, RL.RED )
RL.DrawTexture( lightTex, lightPos2, RL.BLUE )
RL.EndBlendMode()
RL.EndTextureMode()
end
@@ -173,7 +193,6 @@ function RL.draw()
0.0,
RL.WHITE
)
RL.DrawTexturePro(
RL.GetRenderTextureTexture( framebuffer ),
{ 0, 0, winSize.x, -winSize.y },
@@ -182,6 +201,6 @@ function RL.draw()
0.0,
RL.WHITE
)
RL.DrawRectangle( { 0, 0, 550, 180 }, { 255, 255, 255, 200 } )
RL.DrawRectangle( guiRect, { 255, 255, 255, 200 } )
drawControls()
end