Try this instead:
Matrix4f matrix = Maths.createTransformationMatrix(
new Vector2f(
-1,
1)
, 0.0f
, new Vector2f(
2 / Display.getWidth(),
-2 / Display.getHeight()
)
);
I have no idea what gui.getSize().getX() / Display.getWidth(...
gui.getSize().getX() was getting the width of the quad I was trying to render. This is the code I used for creating the quad: GuiTexture phone = new GuiTexture(loader.loadTexture("phone"), new Vector2f(1600 / 2 - 300 / 2, 50), 0, new Vector2f(300, 300 * 2.05f));
@TheCodingWombat I don't know what parameters GuiTexture takes so nothing helpful there, but did you get it to work? Do you have any questions regarding my answer?
It are the position (x and y) and size(x and y) of the quad I render in pixels, I have not fully read your answer yet, I'm not at my home computer
This does not seem to render anything when i create new quads with small sizes and positions and also not when I create them with large sizes and positions, also, this transformationmatrix will be the same for all rendered quads, that means you can't rotate individual rendered things right?
@TheCodingWombat Remember that coordinates are now in pixel coordinates. And yes this transformation matrix will be the same for all rendered quads, but no you can individually rotate quads. Just use a different model matrix. Example added, look through my answer again.
@TheCodingWombat I understand what gui.getSize.getX() does, just not why you use it in your code! I removed it now from the example as it causing nothing but confusion. If it doesn't work now you need to give me more info. I see no reason why this shouldn't work.
I basically start of creating a quad that fills up the whole screen float[] positions = {-1, 1, -1, -1, 1, 1, 1, -1};, and then to make it smaller and other sizes I use that transformation matrix method, in the transformation matrix method I also convert the pixel coords like 300, 300 (middle of a screen with a resolution of 600 by 600) to the opengl coord system.
Going back and forth between comments is taking too long.
I'm really unsure of what you are expecting.
If you want to fill the whole screen then it should be like this float[] positions = {0, 0, 0, 600, 600, 0, 600, 600};, this assumes a 600x600 resolution.
I already got this to work in the old method before getting onto stackexchange, and now with your new method it works as well.
It is popping up
the original problem was that rotating the object would change the aspect ratio and size of the object while I inteded to just turn/rotate the object at the place I placed it.
Now when I try to rotate it, it starts moving away from the original place (500, 500), like the point it is rotating around is in the far left corner
I don't know if you understand this explanation but: I create a quad that covers the whole screen, then I use a transformationmatrix to make it smaller (the quad that is covering the whole screen) and position it away from the far left corner of the screen.
yes it should and it does: It first creates a quad covering the whole screen without displaying it and then it immediately gets transformed to a quad that's 50 by 50 and at position 500, 500
If you are an advanced OpenGL user, and you don't advise me watching these videos because he does things different from what you are supposed to do, please tell
I would call me quite experienced, and I have watched videos from him before, I think he does good. He is using modern OpenGL which I find the most important.
Do you have a special GUI-shader that has any coordinates conversion? I has at least been assuming that you simple have gl_Position = matrix * position; in your vertex shader.
If you are unsure you can simply copy-paste your vertex-shader
I tried to, but I really enjoyed these tutorials from thinMatrix (the video link I sent you earlier) and he used 2.9, I didnt know how to do some of that stuff in lwjgl 3
Though I do want to say that I just recently got one of my earlier projects updated to lwjgl3. Current lwjgl3 includes binding for the Oculus SDK, so I got to try out my tech demo out in VR which was awesome! ^^
I have managed to do it using the 3d methods already in the code, but that requires I make a model using blender and it is also in the 3d world so when the player/camera moves that moves as well gyazo.com/7ea145638c554348d33c252416c5a500
I also changed your createTransformationMatrix because you should avoid having src==dest. It also looks cleaner if you ask me, though I don't know it actually is required for it to work.
public static Matrix4f createTransformationMatrix(Vector2f translation, float rotation, Vector2f scale) {
Matrix4f matrix = new Matrix4f();
matrix.setIdentity();
matrix.rotate((float) Math.toRadians(rotation), new Vector3f(0, 0, 1));
matrix.translate(translation);
matrix.scale(new Vector3f(scale.x, scale.y, 1f));
return matrix;
}
Also you should swap the rotate and translate from what I pasted.
ok, so then I have this code Matrix4f modelMatrix = new Matrix4f(); modelMatrix.m00 = 2.0f / (float) Display.getWidth(); modelMatrix.m11 = -2.0f / (float) Display.getHeight(); modelMatrix.m30 = -1; modelMatrix.m31 = 1; between float height = gui....... and shader.loadModel(modelMatrix)
Well one more thing before I leave. I recommend renaming modelMatrix with projectionMatrix and transformationMatrix with modelMatrix to conform with typical naming conventions.
Your "modelMatrix" is not what other people would call it.
Discussion between Christer and The C…
Discussion between Christer and The C…