Game performance based on Java OpenGL block

2020-08-02 • Java

I'm using lwjgl and Java to build a block - based 3D game, just like minecraft I currently have a block class, which contains the functions void update() and void draw(). I call them in the order of update() and draw() in each loop of the game loop The function drawing contains a texture Bind(), which applies a texture to the block and then checks under conditions whether six edges need to be rendered separately

if(rendertop)
GL11.glVertex3f(position.x,position.y,position.z);
.....

At present, it works very well. Unless I draw a lot of these blocks, it slows down FPS, so the game can't play After some searching on Google, I found a better way to draw 3D objects on the screen, and then send graphics cards to each vertex again and again in each drawing I tried to use the list, but it only seemed to need more memory I create a new list for each side of the block, and call it if I need to make the side the same as the above example, which means there are 6 lists for each block That's how I make these lists:

GL11.glNewList(displayListId,GL11.GL_COMPILE);
GL11.glBegin(GL11.GL_QUADS);
...... (Calling GL11.glVertex3f to draw the side)
GL11.glEnd();
GL11.glEndList();

I call like this:

if(rendertop)
GL11.glCallList(displayListId);

But as I said before, it only makes the game very slow, and I know it may have something to do with the way I implement it Another problem with this method is that you break the block required to delete the displaylist. I don't know what to do

Can anyone suggest a way to use displays or other methods to improve performance?

Solution

Batch rendering using vertex arrays or vertex buffer objects

Each VA or VBO shall contain, for example, 16x16x16 cubes

The content of this article comes from the network collection of netizens. It is used as a learning reference. The copyright belongs to the original author.

THE END

Java