(Solved)I made a shader but only works on image

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Dashchan
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Posts: 4
Joined: Sun Sep 15, 2013 10:46 am

(Solved)I made a shader but only works on image

Post by Dashchan »

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function love.load()
	love.window.setMode(800,450)

	local src = [[    
      vec4 effect(vec4 color, Image texture, vec2 tc, vec2 pc)
      {
      	return vec4(tc.x, tc.y, 1.0, 1.0);
      }
	]]

	effect = love.graphics.newShader(src)

	img = love.graphics.newImage("img.png")
end

function love.draw()
	love.graphics.setShader()
  love.graphics.setColor(255, 255, 255)

	--love.graphics.draw(bg, 0, 0)

	love.graphics.setShader(effect)
  love.graphics.draw(img, 400, 200)  
  love.graphics.rectangle('fill',0, 0, 200, 200)

end

function love.update(dt)
	if love.keyboard.isDown('escape') then
		 love.event.quit()
	end
end
http://puu.sh/6gT59.jpg

it works on img but doesnt work on rectangle
can anyone help me? :shock:
Last edited by Dashchan on Sun Jan 12, 2014 11:29 am, edited 1 time in total.
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veethree
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Joined: Sat Dec 10, 2011 7:18 pm

Re: I made a shader but only works on image

Post by veethree »

Draw the image and the rectangle to a canvas, Apply the shader to the canvas.
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slime
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Re: I made a shader but only works on image

Post by slime »

The texture coordinates for primitive shapes (rectangles, etc.) are always 0,0.
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Dashchan
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Posts: 4
Joined: Sun Sep 15, 2013 10:46 am

Re: I made a shader but only works on image

Post by Dashchan »

Thank you guys!
I'll try using a canvas.
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