[1.12.2] How to correctly change camera position

[Recursion]

I am currently developing a mod that involves changing the camera position(without moving the player entity or creating another dummy entity).

 

I located the class net.minecraft.client.renderer.EntityRenderer, but found that, what minecraft does for rendering sleeping etc. is to translate/ rotate, which will, in my case, result in blocks getting culled if the camera is behind player.

 

Is there a way to directly change the camera position?

 

Thanks for helping!

[Cadiboo]

Minecraft#setRenderViewEntity does what you want, the entity doesn’t have to be registered. I know you said you didn’t want a dummy entity but this is the best solution. 

[Recursion]

This approach is easy enough, but by setting renderViewEntity, I am not able to see my self anymore

[DWDev]

I would check out the pixelmon mod (https://github.com/zyczu1/pixelmon/tree/master/src/main/java/com/pixelmonmod/pixelmon/client/camera). They use an entity for the camera as well.

Edited April 14, 2019 by DWDev

[Cadiboo]

8 hours ago, Recursion said:

This approach is easy enough, but by setting renderViewEntity, I am not able to see my self anymore

You could probably just do the render call yourself in one of forges render events. Looking at why the player isn’t rendering (where the code is that disables it) would be a good start to deciding where to do the render call from.

6 hours ago, DWDev said:

I would check out the pixelmon mod (https://github.com/zyczu1/pixelmon/tree/master/src/main/java/com/pixelmonmod/pixelmon/client/camera). They use an entity for the camera as well.

Personally I don’t think that Pixelmon is a good source, I would look at the vanilla code to understand what is going on, then at the pixelmon code to see what they do and then I would write my own implementation.

[Recursion]

7 hours ago, Cadiboo said:

You could probably just do the render call yourself in one of forges render events. Looking at why the player isn’t rendering (where the code is that disables it) would be a good start to deciding where to do the render call from.

Personally I don’t think that Pixelmon is a good source, I would look at the vanilla code to understand what is going on, then at the pixelmon code to see what they do and then I would write my own implementation.

I will definitely try to render the player again. But can you explain why you would go for a dummy entity?

 

Right now i am still weighing the two approaches:

 

1. Making another dummy entity and setViewEntity to this one.

 

2. Inspect how vanilla does the rendering and make opengl calls somewhere sensible 

 

and sort of trying both of them. Regarding the 2nd one, i was able to translate camera(by gl calls) to a certain position in the world after the forge rotation in orientCamera(), but that messed up how the camera rotates(It doesnt rotate about the new position, which makes sense, i guess). But I'm not sure how to fix it.

[Cadiboo]

45 minutes ago, Recursion said:

But can you explain why you would go for a dummy entity?

Compatibility, maintainability etc. A dummy entity is pretty much already supported by all mods and this approach is very unlikely to need major changes each minecraft update.