69 lines
2.0 KiB
Go
69 lines
2.0 KiB
Go
|
package pass
|
||
|
|
|
||
|
|
import (
|
||
|
|
"zworld/engine/object/light"
|
||
|
|
"zworld/engine/object/mesh"
|
||
|
|
"zworld/engine/render/uniform"
|
||
|
|
"zworld/engine/renderapi"
|
||
|
|
"zworld/engine/renderapi/cache"
|
||
|
|
"zworld/engine/renderapi/command"
|
||
|
|
"zworld/engine/renderapi/material"
|
||
|
|
"zworld/engine/renderapi/texture"
|
||
|
|
"zworld/plugins/math/vec2"
|
||
|
|
"zworld/plugins/math/vec4"
|
||
|
|
)
|
||
|
|
|
||
|
|
type MaterialCache cache.T[*material.Def, []Material]
|
||
|
|
|
||
|
|
// Material implements render logic for a specific material.
|
||
|
|
type Material interface {
|
||
|
|
ID() material.ID
|
||
|
|
Destroy()
|
||
|
|
|
||
|
|
// Begin is called prior to drawing, once per frame.
|
||
|
|
// Its purpose is to clear object buffers and set up per-frame data such as cameras & lighting.
|
||
|
|
Begin(uniform.Camera, []light.T)
|
||
|
|
|
||
|
|
// BeginGroup is called just prior to recording draw calls.
|
||
|
|
// Its called once for each group, and may be called multiple times each frame.
|
||
|
|
// The primary use for it is to bind the material prior to drawing each group.
|
||
|
|
Bind(command.Recorder)
|
||
|
|
|
||
|
|
// Draw is called for each mesh in the group.
|
||
|
|
// Its purpose is to set up per-draw data such as object transforms and textures
|
||
|
|
// as well as issuing the draw call.
|
||
|
|
Draw(command.Recorder, mesh.Mesh)
|
||
|
|
|
||
|
|
// End is called after all draw groups have been processed.
|
||
|
|
// It runs once per frame and is primarily responsible for flushing uniform buffers.
|
||
|
|
End()
|
||
|
|
}
|
||
|
|
|
||
|
|
func AssignMeshTextures(samplers cache.SamplerCache, msh mesh.Mesh, slots []texture.Slot) [4]uint32 {
|
||
|
|
textureIds := [4]uint32{}
|
||
|
|
for id, slot := range slots {
|
||
|
|
ref := msh.Texture(slot)
|
||
|
|
if ref != nil {
|
||
|
|
handle, exists := samplers.TryFetch(ref)
|
||
|
|
if exists {
|
||
|
|
textureIds[id] = uint32(handle.ID)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return textureIds
|
||
|
|
}
|
||
|
|
|
||
|
|
func CameraFromArgs(args renderapi.Args) uniform.Camera {
|
||
|
|
return uniform.Camera{
|
||
|
|
Proj: args.Projection,
|
||
|
|
View: args.View,
|
||
|
|
ViewProj: args.VP,
|
||
|
|
ProjInv: args.Projection.Invert(),
|
||
|
|
ViewInv: args.View.Invert(),
|
||
|
|
ViewProjInv: args.VP.Invert(),
|
||
|
|
Eye: vec4.Extend(args.Position, 0),
|
||
|
|
Forward: vec4.Extend(args.Forward, 0),
|
||
|
|
Viewport: vec2.NewI(args.Viewport.Width, args.Viewport.Height),
|
||
|
|
}
|
||
|
|
}
|