render

type Context struct {
	// contains filtered or unexported fields
}

type Light struct {
	X, Y, Z, W float32 // location - W is 1 for point light, 0 for directional.
	R, G, B    float32 // color
	Intensity  float32 // light intensity
}

type Loader interface {
	LoadTexture(img *load.ImageData) (tid uint32, err error)
	LoadMesh(mdata load.MeshData) (mid uint32, err error)
	LoadShader(config *load.Shader) (mid uint16, err error)
}

type Packet struct {
	ShaderID   uint16   // GPU shader reference
	MeshID     uint32   // GPU mesh reference.
	TextureIDs []uint32 // GPU texture references.

	// packet (model) uniform data.
	Data map[load.PacketUniform][]byte

	// used to draw instanced meshes.
	IsInstanced   bool   // true for instanced models.
	InstanceID    uint32 // GPU instance data reference.
	InstanceCount uint32 // instance count for instanced models.

	// Rendering hints.
	Tag    uint32 // Application tag (entity ID) for debugging.
	Bucket uint64 // Used to sort packets. Lower buckets rendered first.
}

type Packets []Packet // variable number of packets.

type Pass struct {

	// Packets are a reusable list of packets, one per model.
	Packets Packets
	Data    map[load.PassUniform][]byte // Scene uniform data

	// Light position and color information.
	// Lights are reused to generate scene light uniform data.
	Lights []Light // max 3 scene lights.
}

type PassID uint8 // upto 256 passes should be sufficient.

type RenderAPI int