#My Remake of 3ds Max
I started remaking 3ds Max in UE4, just for fun.
*"
So more precisely, my two questions are: 1.How suitable UE4 would be for something like that in terms of performance? (let’s say I want to make something like Zbrush’s “dynamesh” feature, if anyone here is familiar with it?)
2.How suitable UE4 would be for something like that in terms of time/effort to make something like that in UE4 vs time/effort to do something like that with pure code from scratch. (keep in mind that I haven’t found a single engine for creating 3D applications so far,"*
#“It’s VERY VERY POSSIBLE” -Rama
I got as far as dynamically building Torus knots where you can set the exact specifications, and then you can watch it render!
Keep in mind I do the rendering slowly just for fun
Video on Forum
uv Mapping and Collision
I later added collision and UV Mapping
#My 3ds Max Progress
I had selecteable triangles, could add and delete vertices, and flip normals and all of that. as you can see in video I had no issues rendering extremely high details meshes using DynamicMesh Builder
#Where to Start
Look up how rendering works in BoxCollisionComponent.cpp or SphereComponent.cpp
For legal reasons I can’t post too much code, but this is the general vicinity of what you want:
//~~~~~~~~~~~~~~
// Scene Proxy
//~~~~~~~~~~~~~~
FPrimitiveSceneProxy* USculptor::CreateSceneProxy()
{
class FDraw3DSceneProxy : public FPrimitiveSceneProxy
{
public:
FDraw3DSceneProxy(USculptor* InComponent)
: FPrimitiveSceneProxy(InComponent),
Sculptor(InComponent)
{
bWillEverBeLit = false;
}
//Draw Dynamic
virtual void DrawDynamicElements(FPrimitiveDrawInterface* PDI,const FSceneView* View) OVERRIDE
{
//draw to the PDI here!
}
#How To
I created a single actor with a single “Scultpor” component which is my custom version of 3ds max.
That single component renders all the geometry for a single object that is being edited and shaped by the user.
So you are always drawing the PDI of a component that is part of an actor, but you can draw a LOT.
This keeps everything contained, and allows me to create or delete my “Canvas3D” whenever I want, or hide it, or move it, as you see in my video.
dynamic Mesh Builder
Look up info on dynamic mesh builder in the source code
FDynamicMeshBuilder
Creating Static Meshes at Runtime
Wiki Tutorial:
To get UVs working you will need to study how dynamic Mesh does it and modify the procedural mesh code accordingly.
I posted about it on the forums and on answerhub several times.