Posted by deardanielxd on Jan 22, 2017; 7:51am
URL: https://forum.jogamp.org/Optimising-a-voxel-engine-tp4037587.html

Hi. I am new to OpenGL4. I am currently writing my own Voxel engine using lwjgl. My final goal is to make a small simulator to simulate a small ecosystem. I implemented the entity renderer and light inside my engine. At the beginning, I followed a youtube channel, called ThinMatrix. I changed the structure and some details of the engine to make it easier to implement my simulator. Currently, I added about 1K objects and each with about 3-4K vertices.  I implemented textured mapping and lighting effects. I added two point lights. One is static and one is controlled by the mouse. Overall, I think the whole program is quite simple, but the fps is just only 20-30. And here is my questions.

1. What can I do to improve my engine? Or, how do you optimise your engines?
2. What are the most common bottlenecks in OpenGL 4?
3. I have heard of buffer of batch data. According to my understandings, it is about combining several buffers into one single buffer to speed up the rendering. Am i correct? Currently, I separated the buffers into normals, vertices and texture buffers. Is that a bad practise? If I apply the "buffer of batch data" technique. How much will it improve?

Any advice will be very helpful. Thanks