how to make a standard for artists before dev a multi-platform game including PC, Mobile, VR?
eg. what format , what size of the textures should be used for each platform?
vetex cound limit of the skeleton/static mesh for each platform?
material limit for each platform?
etc…
Thanks!
thanks so much. this mean the vertex counts per frame, right? i know it’s hard to limit the count for staticObject as their various sizes.
for SkinnedModel or SkeletonMesh in UE, is there a vertex and material limit on it ? for PC and Mobile and VR.
what’s the normal standard for the Player’s Character and the NPC, vertex count and material count for this? i mean in the normal opaque mode. Transluscent cost too much.
should be each materail each batch is a drawcall? how about ue4 on batching? including statci and dynamic batch? by default ue4 will batch all the primitive using the same material into one batch?
there are realtime shadows for the Player’s character?
UE4 is able to scale down the texture resolution while packaging? so does it mean i can make texture by the highest resolution(eg. 4096 for the high-end PC) and then all the rest things need to do is just set in the packging to scale down the resolution? how about the precision of the scaled down texture?
this stat in UE4 shows the drawcall count, what does one drawll count precisely mean, like normal way? call DrawPrim/IndexPrim one time? eg. in deferred shading, as it’s multi-pass, it will be at least one drawcall per pass. eg. draw to g-buffer is also one drawcall?
which format is better? for a multi platform game including PC, MobilePhone, VR
Just some general material stuff based on experience.
Unreal 4/5 being a next gen engine things like FPS is of little value as to performance as they no longer use the same rending techniques as older engines (scan line) so performance hits has little to do with vertex counts as compared to what is attached and is inherent as a support asset.
As a “standard” managing textures and materials should top the list as to what is needed by the project as sharder complexity and management could become the bottle neck as to performance requirements of a given platform.
The good news in 4.26 > there are tools to correct for project requirements with out decay to the source material and/or asset so you can cover everything with a simple logic.
“It’s much easier to make too much less than it is to force not enough to do more”
So a “logical” limit as to polycount/vertex count is enough to support the detail requirements with out having to resort to texture trickery. An oil drum should look like an oil drum as fixing the detail in materials can become more excessive as compared to the non-existing poly hit.
In general 2048 is a good all round resolution keeping in mind the to much rule but there are other material types that can be used, such as Substance and material layering, wich would be equal in quality compared to hi-res textures but at smaller package sizes.
Material “type” is a wrapper that contains the instructions of how the textures needs to be rendered so how many textures is the limit is determined on the vram storage of your video card. By default the limit notification is set to 1 gig so if you exceed that limit you will get a warning that you have exceeded your streaming texture limit.
This brings us back to materials in general as a material can be made an instanced material which requires less draw calls as to textures already in use as well decrease compile times
Lots more to be said but of all the things that need or should have a standard material management tops the list
eg. one character with helmet, normally there should be 1 material for the helmet, 1 material for the skin, may 1 material for the eyes, 1 material for the hair.
In UE4, how to deal with this kind of situation, still 4 meshes with 4 matarial so 4 shaders inside the engine?
how about VR, Oculus Quest 2 ?
eg. 2048 is the original resolution and it has 3 mipmap: 2048, 1024, 512; then only can scale down 2048 right? does it still have 3 mipmap after scaled down. eg. to 1024, 512, 256.
is there tutorial for this? and how about the users’ platform, is it able to use UE4.26 with DX12 and Vulcan for a multi-platform game include VR(eg. Oculus Quest 2), MobilePhone(Android and IOS), PC(Oculus Rift, etc).
Thanks so so much !!
yep, i know. i mean .png and .tga which one is better to be dev with. as after packaging, all become dds, etc, etc…so there is no differernce to use either .png or .tag? including at the aspect of the whole process of team dev and maintain?
Thank you so much!
Thank you so much for the wonderful answer!
why is it so hard?
how can you keep them under 300 if on a total blank project draw calls are around 300 with nothing in the scene