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Include the normals in the generated Plane geometry

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Eryn Wells 2018-11-10 21:10:03 -05:00
parent cb16b84ab9
commit 6a86368d3a
2 changed files with 13 additions and 13 deletions
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8
Terrain2/ShaderTypes.h
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@ -24,16 +24,16 @@
typedef NS_ENUM(NSInteger, BufferIndex)
{
BufferIndexMeshPositions = 0,
BufferIndexMeshGenerics = 1,
BufferIndexMeshGridCoords = 2,
BufferIndexNormals = 1,
BufferIndexMeshGenerics = 2,
BufferIndexUniforms = 3,
};
typedef NS_ENUM(NSInteger, VertexAttribute)
{
VertexAttributePosition = 0,
VertexAttributeTexcoord = 1,
VertexAttributeGridCoord = 2,
VertexAttributeNormal = 1,
VertexAttributeTexcoord = 2,
};
typedef NS_ENUM(NSInteger, TextureIndex)

18
Terrain2/Terrain.swift
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@ -19,26 +19,26 @@ class Terrain: NSObject {
desc.attributes[VertexAttribute.position.rawValue].offset = 0
desc.attributes[VertexAttribute.position.rawValue].bufferIndex = BufferIndex.meshPositions.rawValue
desc.attributes[VertexAttribute.normal.rawValue].format = .float3
desc.attributes[VertexAttribute.normal.rawValue].offset = 0
desc.attributes[VertexAttribute.normal.rawValue].bufferIndex = BufferIndex.normals.rawValue
desc.attributes[VertexAttribute.texcoord.rawValue].format = .float2
desc.attributes[VertexAttribute.texcoord.rawValue].offset = 0
desc.attributes[VertexAttribute.texcoord.rawValue].bufferIndex = BufferIndex.meshGenerics.rawValue
desc.attributes[VertexAttribute.gridCoord.rawValue].format = .uint2
desc.attributes[VertexAttribute.gridCoord.rawValue].offset = 0
desc.attributes[VertexAttribute.gridCoord.rawValue].bufferIndex = BufferIndex.meshGridCoords.rawValue
desc.layouts[BufferIndex.meshPositions.rawValue].stride = 12
desc.layouts[BufferIndex.meshPositions.rawValue].stepRate = 1
desc.layouts[BufferIndex.meshPositions.rawValue].stepFunction = .perVertex
desc.layouts[BufferIndex.normals.rawValue].stride = 12
desc.layouts[BufferIndex.normals.rawValue].stepRate = 1
desc.layouts[BufferIndex.normals.rawValue].stepFunction = .perVertex
desc.layouts[BufferIndex.meshGenerics.rawValue].stride = 8
desc.layouts[BufferIndex.meshGenerics.rawValue].stepRate = 1
desc.layouts[BufferIndex.meshGenerics.rawValue].stepFunction = .perVertex
desc.layouts[BufferIndex.meshGridCoords.rawValue].stride = MemoryLayout<uint2>.stride
desc.layouts[BufferIndex.meshGridCoords.rawValue].stepRate = 1
desc.layouts[BufferIndex.meshGridCoords.rawValue].stepFunction = .perVertex
return desc
}
@ -62,8 +62,8 @@ class Terrain: NSObject {
throw RendererError.badVertexDescriptor
}
attributes[VertexAttribute.position.rawValue].name = MDLVertexAttributePosition
attributes[VertexAttribute.normal.rawValue].name = MDLVertexAttributeNormal
attributes[VertexAttribute.texcoord.rawValue].name = MDLVertexAttributeTextureCoordinate
attributes[VertexAttribute.gridCoord.rawValue].name = "Grid Coordinate"
plane.vertexDescriptor = mdlVertexDescriptor