filament/io.github.erkko68.filament/RenderableManager/Builder/geometry

geometry

fun geometry(index: Int, type: RenderableManager.PrimitiveType, vertices: VertexBuffer, indices: IndexBuffer, offset: Int, minIndex: Int, maxIndex: Int, count: Int): RenderableManager.Builder

Specifies the geometry data for a primitive with explicit min/max indices.

Return

Builder reference for chaining calls.

Parameters

index

zero-based index of the primitive, must be less than the count passed to Builder constructor

type

specifies the topology of the primitive (e.g., PrimitiveType.TRIANGLES)

vertices

specifies the vertex buffer, which in turn specifies a set of attributes

indices

specifies the index buffer (either u16 or u32)

offset

specifies where in the index buffer to start reading (expressed as a number of indices)

minIndex

specifies the minimum index contained in the index buffer

maxIndex

specifies the maximum index contained in the index buffer

count

number of indices to read (for triangles, this should be a multiple of 3)

fun geometry(index: Int, type: RenderableManager.PrimitiveType, vertices: VertexBuffer, indices: IndexBuffer, offset: Int, count: Int): RenderableManager.Builder

Specifies the geometry data for a primitive with offset and count.

Return

Builder reference for chaining calls.

Parameters

offset

specifies where in the index buffer to start reading (expressed as a number of indices)

count

number of indices to read (for triangles, this should be a multiple of 3)

fun geometry(index: Int, type: RenderableManager.PrimitiveType, vertices: VertexBuffer, indices: IndexBuffer): RenderableManager.Builder

Specifies the geometry data for a primitive, using the whole index buffer.

Typically, each primitive is specified with a pair of daisy-chained calls: geometry(...) and material(...).

Return

Builder reference for chaining calls.

fun geometry(index: Int, type: RenderableManager.PrimitiveType, vertices: VertexBuffer, offset: Int, count: Int): RenderableManager.Builder

Specifies the geometry data for a non-indexed primitive: offset / count refer to vertices.

Attribute-less rendering: the vertex shader can generate positions procedurally from gl_VertexIndex / gl_VertexID, with a VertexBuffer that has bufferCount == 0. This requires FEATURE_LEVEL_1 or higher and is incompatible with skinning and morphing.

Return

Builder reference for chaining calls.

Parameters

offset

specifies where in the vertex buffer to start reading (expressed as a number of vertices)

count

number of vertices to read (for triangles, this should be a multiple of 3)

fun geometry(index: Int, type: RenderableManager.PrimitiveType, vertices: VertexBuffer): RenderableManager.Builder

Specifies the geometry data for a non-indexed primitive using all vertices.

Return

Builder reference for chaining calls.