Image 2 GPU Error
Posted: Wed Apr 26, 2023 5:21 pm
I was trying to make an compute shader using the pixel shader, but the Image is not correctly sendet to the GPU.
Using LÖVE 11.4.
main.lua
compute.cmp
This should have diffrent values in the output array (Texture), but it's overriden, when the Textures are transfered to the GPU.
On the CPU side the textures are normal and in the Shader x is diffrent.
If there are any questions, let me know, and if I make "bad" Code let me know.
Using LÖVE 11.4.
main.lua
Code: Select all
cmp = love.graphics.newShader("compute.cmp")
test = false
MAX = 10
SIZE = 16
function sendData(input,weight,bias,output) -- float[]
-- input = Image[y ]
-- weight = Image[x,y]
-- bias = Image[x ]
-- output = int (x )
local screen = love.graphics.getCanvas() -- for end output
local level = output
local weightMap = love.graphics.newCanvas(#weight,#weight[1],{format="rgba32f"}) -- x,y
local weightMaper = weightMap:newImageData()
local biasMap = love.graphics.newCanvas(#weight,1,{format="rgba32f"}) -- x
local biasMaper = biasMap:newImageData()
local intakeMap = love.graphics.newCanvas(#weight[1],1,{format="rgba32f"}) -- y
local intakeMaper = intakeMap:newImageData()
print("dimensions:(" .. #weight .. "|" .. #weight[1] .. ")")
print("dimension#:(" .. #bias .. "|" .. #input ..")")
if type(output) == "number" then
level = love.graphics.newCanvas(output,1,{format="rgba32f"})
end
local f = 0
for i=0,#bias - 1,1 do
f = bias [i + 1]
print("bias:(" .. i .. "):" .. f)
biasMaper:setPixel(i,0,f,f,f,1)
end
for i=0,#input - 1,1 do
f = input[i + 1]
print("input:(" .. i .. "):" .. f)
intakeMaper:setPixel(i,0,f,f,f,1)
end
for i=0,#weight - 1,1 do
for j=0,#weight[1] - 1,1 do
f = weight[i + 1][j + 1]
-- print("weights:(" .. i .. "|" .. j .. "):" .. f)
weightMaper:setPixel( i,j, f,f,f,1)
end
end
weightMap :release() -- free space
biasMap :release()
intakeMap :release()
weightMap = love.graphics.newImage(weightMaper) -- make Image
intakeMap = love.graphics.newImage(intakeMaper) -- for display and
biasMap = love.graphics.newImage(biasMaper ) -- data use
-- better display
weightMap :setFilter("nearest","nearest")
biasMap :setFilter("nearest","nearest")
intakeMap :setFilter("nearest","nearest")
-- sending data to Shader
cmp:send("height" ,#weight [1])
cmp:send("weights",weightMap )
cmp:send("intake" ,intakeMap )
cmp:send("bias" ,biasMap )
love.graphics.rectangle("fill", 0, 0, 500, 500)
love.graphics.draw(intakeMap , 0, 0, 0,SIZE,SIZE)
love.graphics.draw(biasMap ,#weight * SIZE + SIZE * 2,SIZE * 2,math.pi * 0.5,SIZE,SIZE)
love.graphics.draw(weightMap , 0,SIZE * 2, 0,SIZE,SIZE)
-- love.graphics.draw()
weightMap :release() -- free space
biasMap :release()
intakeMap :release()
weightMaper:release()
biasMaper :release()
intakeMaper:release()
-- use output buffer use Shader and compute!
love.graphics.setCanvas(level)
love.graphics.setShader(cmp)
love.graphics.rectangle("fill",0,0,#weight * 2,5)
love.graphics.setCanvas()
love.graphics.setShader()
-- data collector
local outp = {}
local data = level:newImageData()
local r,g,b,a
-- display purpeses
level:setFilter("nearest","nearest")
love.graphics.setCanvas(screen)
love.graphics.draw(level,#weight * SIZE + SIZE * 4,SIZE * 2,math.pi * 0.5,SIZE,SIZE) -- display output
-- collector
for i=0,#weight - 1,1 do
r,g,b,a = data:getPixel(i,0)
print("Data:(" .. i .. "):(" .. r .. "," .. g .. "," .. b .. "," .. a ..")")
outp[i + 1] = r
end
data:release() -- free
return outp
end
function smallLog(value)
for k,v in pairs(value) do
print(k .. "\t|" .. v)
end
end
function love.load()
-- setupDisplay-buffer
screen = love.graphics.newCanvas(800,500)
-- no Crash?
cmp:send("bias" ,love.graphics.newCanvas(1,1,{format="rgba32f"}))
cmp:send("intake" ,love.graphics.newCanvas(1,1,{format="rgba32f"}))
cmp:send("weights",love.graphics.newCanvas(1,1,{format="rgba32f"}))
cmp:send("height" ,0)
end
function love.update(dt)
end
function love.draw()
love.graphics.setCanvas(screen)
if test then
-- test
smallLog(
sendData({0,.4,.8,.0},{{0,0,0,0},{0,0,0,0},{0,0,0,0},{0,0,0,0}},{0,.2,.4,.8},4)
)
test = false
end
-- drawing things
love.graphics.setCanvas()
love.graphics.setColor(1,1,1)
love.graphics.draw(screen,0,0,0,1,1)
end
function love.keypressed( key, scancode, isrepeat )
if key == "space" then
test = true
end
end
function love.mousepressed( x, y, button, istouch, presses )
-- get Pixel value
local s = screen:newImageData()
print(s:getPixel(x,y))
s:release()
endcompute.cmp
Code: Select all
// uniform vec2 size;
// #define BUFFER_SIZE 100
uniform int height = 0;
uniform Image bias;
// x output
uniform Image intake;
// y input
uniform Image weights;
// x is output y is input
// x + M * y
/*layout(std430,binding = 1) buffer moin
{};/**/
float activation(float value){
return 1 / (1 + exp(-value));
}
vec3 activation(vec3 value){
return 1 / (1 + exp(-value));
}
vec4 effect( vec4 color, Image tex, vec2 texture_coords, vec2 screen_coords ){
// x is for the output array
// y is for the input array
int x = int(floor(screen_coords.x));
int y = 0;
// vec3 col = bias[x].rgb;
// for(;y < height;y++){
// col += Texel(intake,vec2(y,0)).rgb * Texel(weights,vec2(x,y)).rgb;
// }
// return vec4(activation(col),1);
float col = Texel(bias,vec2(x,0)).r;
for(;y < height;y++){
col += Texel(intake,vec2(y,0)).r * Texel(weights,vec2(x,y)).r;
}
return vec4(
activation(col),
Texel(intake,vec2(x,0)).r,
Texel(bias,vec2(x,0)).r,
1);
}On the CPU side the textures are normal and in the Shader x is diffrent.
If there are any questions, let me know, and if I make "bad" Code let me know.