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Render a plane in Terrain2 instead of a box

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This commit is contained in:
Eryn Wells 2018-11-03 15:43:47 -04:00
parent a771c2622a
commit dc179036dc
1 changed files with 9 additions and 8 deletions
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17
Terrain2/Renderer.swift
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@ -150,10 +150,9 @@ class Renderer: NSObject, MTKViewDelegate {
let metalAllocator = MTKMeshBufferAllocator(device: device)
let mdlMesh = MDLMesh.newBox(withDimensions: float3(4, 4, 4),
segments: uint3(2, 2, 2),
geometryType: MDLGeometryType.triangles,
inwardNormals:false,
let plane = MDLMesh.newPlane(withDimensions: float2(6, 6),
segments: uint2(20, 20),
geometryType: .triangles,
allocator: metalAllocator)
let mdlVertexDescriptor = MTKModelIOVertexDescriptorFromMetal(mtlVertexDescriptor)
@ -164,9 +163,9 @@ class Renderer: NSObject, MTKViewDelegate {
attributes[VertexAttribute.position.rawValue].name = MDLVertexAttributePosition
attributes[VertexAttribute.texcoord.rawValue].name = MDLVertexAttributeTextureCoordinate
mdlMesh.vertexDescriptor = mdlVertexDescriptor
plane.vertexDescriptor = mdlVertexDescriptor
return try MTKMesh(mesh:mdlMesh, device:device)
return try MTKMesh(mesh:plane, device:device)
}
class func loadTexture(device: MTLDevice,
@ -234,9 +233,9 @@ class Renderer: NSObject, MTKViewDelegate {
if let renderEncoder = commandBuffer.makeRenderCommandEncoder(descriptor: renderPassDescriptor) {
renderEncoder.label = "Primary Render Encoder"
renderEncoder.pushDebugGroup("Draw Box")
renderEncoder.pushDebugGroup("Draw Plane")
renderEncoder.setCullMode(.back)
renderEncoder.setCullMode(.none)
renderEncoder.setFrontFacing(.counterClockwise)
@ -244,6 +243,8 @@ class Renderer: NSObject, MTKViewDelegate {
renderEncoder.setDepthStencilState(depthState)
renderEncoder.setTriangleFillMode(.lines)
renderEncoder.setVertexBuffer(dynamicUniformBuffer, offset:uniformBufferOffset, index: BufferIndex.uniforms.rawValue)
renderEncoder.setFragmentBuffer(dynamicUniformBuffer, offset:uniformBufferOffset, index: BufferIndex.uniforms.rawValue)