Instancing?

[Game Producer]

I tried mesh=LoadMesh and then 40x copyEntity(mesh), but the FPS numbers are the same if I just use 40x mesh=LoadMesh

 

My gfx card has instancing supported. Does it work with animated/material-painted meshes?

Leadwerks Engine 2.5

Initializing Renderer...

OpenGL Version: 4.1.0

GLSL Version: 4.10 NVIDIA via Cg compiler

Render device: GeForce GTS 450/PCI/SSE2

Vendor: NVIDIA Corporation

DrawBuffers2 supported: 1

32 texture units supported.

GPU instancing supported: 1

Max batch size: 64

Shader model 4.0 supported: 1

Conditional render supported: 0

[Josh]

The engine automatically instances meshes when you load a file from the same path.

[Rick]

CopyEntity() will instance CreateXXX() commands. ie. CreateCube(). If you do 10k CreateCube() they won't be instanced. If you do 1 CreateCube() and CopyEnity() on it 10K they will be. If you LoadModel() 10K times on the same model it'll instance it because it knows it already has it loaded.

[Josh]

FYI, in Leadwerks3D you can do this with all assets to load a new copy:

Model* model = LoadModel("mymodel.mdl",LOAD_UNIQUE);

[paramecij]

FYI, in Leadwerks3D you can do this with all assets to load a new copy:

Model* model = LoadModel("mymodel.mdl",LOAD_UNIQUE);

Thank you very much, I have some duplicated files now to get around this..

[Flexman]

Currently I have the need to use the same geometry but different skins.

[Game Producer]

The engine automatically instances meshes when you load a file from the same path.

Ok. There goes my fancy caching tool then xD

 

CopyEntity() will instance CreateXXX() commands. ie. CreateCube(). If you do 10k CreateCube() they won't be instanced. If you do 1 CreateCube() and CopyEnity() on it 10K they will be. If you LoadModel() 10K times on the same model it'll instance it because it knows it already has it loaded.

Roger that.

 

FYI, in Leadwerks3D you can do this with all assets to load a new copy:

Model* model = LoadModel("mymodel.mdl",LOAD_UNIQUE);

Good to know, this is excellent addition and will help creater much lower file size (earlier I had to create several copies of my 10 meg humongous character file)

 

Currently I have the need to use the same geometry but different skins.

You instanced your reply, I see it duplicated!

[Flexman]

Dunno how that happened. I deleted the instance leaving the original intact. However your message still contains a reference to it therefore the forum is now unstable and could crash at any moment.

[Rick]

Currently I have the need to use the same geometry but different skins.

 

 

Flexman have you ever seen this thread and shader? http://www.leadwerks.com/werkspace/topic/607-non-instancing-copy-command/page__p__5296__hl__instancing__fromsearch__1#entry5296

 

Bottom of 2nd page he has the shader file. It lets you have a giant texture that stores all the different skins and you control which section of this giant texture to use from the alpha value of SetColor I believe it is. His video that he links to seems to no longer be online but in the thread he should write the usage I think.

[Flexman]

Flexman have you ever seen this thread and shader? http://www.leadwerks.com/werkspace/topic/607-non-instancing-copy-command/page__p__5296__hl__instancing__fromsearch__1#entry5296

 

Bottom of 2nd page he has the shader file. It lets you have a giant texture that stores all the different skins and you control which section of this giant texture to use from the alpha value of SetColor I believe it is. His video that he links to seems to no longer be online but in the thread he should write the usage I think.

 

Thanks for that great link Rick.

 

I thought about something like it, using the vert colour as an offset. I don't know how practical it might be for a helicopter with large textures but there might be something in it (a decal atlas or some such).

 

Thanks again.

[Josh]

I'd use the entity red and green colors for the UV offset.

[Rick]

Then you should make a shader for us that does that

[paramecij]

Then you should make a shader for us that does that

I think he already did. Check out the switch model that came with the SDK, namely switch.frag and switch.lua