DrawImage

[MarkusR]

need one more command for using bitmap fonts.

 

DrawImage(Texture* texture, int x, int y,int offsetx, int offsety, int width, int height)

 

this function already draw all, think its easy to add.

[gamecreator]

What would those be offsets from? Why not just add them to x and y yourself?

[Olby]

What would those be offsets from? Why not just add them to x and y yourself?

 

I think he means offests within a bitmap. If that's the case then we also need bottom left/right offset to have full cropping capabilities. Once the crop is set with offset x/y/x2/y2 then x/y and w/h is used to actually position and size the cropped bitmap.

[gamecreator]

Ah ok. The possible good news here is that you can read and write texture pixels.

http://www.leadwerks.com/werkspace/page/documentation/_/command-reference/texture/texturegetpixels-r336

Not as simple as what you were looking for but not too bad to implement.

[Rick]

I agree. This allows for spritesheets instead of separate images for 2D animations

[MarkusR]

yo, with that pixel copy i can make new smaller textures and put them into a array, thanks.

[Einlander]

Ah ok. The possible good news here is that you can read and write texture pixels.

http://www.leadwerks.com/werkspace/page/documentation/_/command-reference/texture/texturegetpixels-r336

Not as simple as what you were looking for but not too bad to implement.

 

Does this work in lua?

[Ma-Shell]

What will work in LUA:

 

Edit the drawimage.shader (the Pixel-Shader):

On top add a uniform (don't name it "offset". That one is already used by the vertex-shader):

uniform vec2 off

 

change the line

fragData0 = drawcolor * texture(texture0,vTexCoords0);

to

fragData0 = drawcolor * texture(texture0,vTexCoords0+off);

 

Now in your LUA-Script just before the call to DrawImage set this value:

imgshader = Shader:Load("Shaders/Drawing/drawimage.shader")
if(not(imgshader:SetVec2("off", Vec2(0.1,0.1)))) then
   System:Print("Value could not be set.")
end

 

You will probably want to change the value back to (0,0) after you are done drawing.

 

Edit: (The offset will be set in percent, I think)