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Debug modifying the geometry

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packed_float3 != float3 ¯\_(ツ)_/¯
This commit is contained in:
Eryn Wells 2018-11-11 20:16:08 -05:00
parent 3462fa2458
commit dc3de77a59
2 changed files with 11 additions and 4 deletions
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13
Terrain2/Renderer.swift
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@ -207,6 +207,7 @@ class Renderer: NSObject, MTKViewDelegate {
_ = regenerationSemaphore.wait(timeout: DispatchTime.distantFuture)
if let commandBuffer = commandQueue.makeCommandBuffer() {
let needsGeometryUpdate = didUpdateTerrain
var didScheduleAlgorithmIteration = false
let inFlightSem = inFlightSemaphore
let regenSem = regenerationSemaphore
@ -214,7 +215,7 @@ class Renderer: NSObject, MTKViewDelegate {
if didScheduleAlgorithmIteration && self.iterateTerrainAlgorithm {
self.iterateTerrainAlgorithm = false
}
if self.didUpdateTerrain {
if needsGeometryUpdate {
self.didUpdateTerrain = false
}
regenSem.signal()
@ -235,12 +236,18 @@ class Renderer: NSObject, MTKViewDelegate {
didScheduleAlgorithmIteration = true
}
if didScheduleAlgorithmIteration || didUpdateTerrain, let computeEncoder = commandBuffer.makeComputeCommandEncoder() {
if didScheduleAlgorithmIteration || needsGeometryUpdate, let computeEncoder = commandBuffer.makeComputeCommandEncoder() {
print("Scheduling update geometry iteration")
computeEncoder.label = "Geometry Heights Encoder"
computeEncoder.pushDebugGroup("Update Geometry: Heights")
computeEncoder.setComputePipelineState(updateGeometryHeightsPipeline)
computeEncoder.dispatchThreads(MTLSize(width: Int(terrain.segments.x), height: Int(terrain.segments.y), depth: 1), threadsPerThreadgroup: MTLSize(width: 10, height: 10, depth: 1))
computeEncoder.setTexture(terrain.generator.outTexture, index: GeneratorTextureIndex.in.rawValue)
let vertexBuffer = terrain.mesh.vertexBuffers[BufferIndex.meshPositions.rawValue]
computeEncoder.setBuffer(vertexBuffer.buffer, offset: vertexBuffer.offset, index: GeneratorBufferIndex.vertexes.rawValue)
let texCoordBuffer = terrain.mesh.vertexBuffers[BufferIndex.meshGenerics.rawValue]
computeEncoder.setBuffer(texCoordBuffer.buffer, offset: texCoordBuffer.offset, index: GeneratorBufferIndex.texCoords.rawValue)
computeEncoder.setBuffer(dynamicUniformBuffer, offset: uniformBufferOffset, index: GeneratorBufferIndex.uniforms.rawValue)
computeEncoder.dispatchThreads(MTLSize(width: Int(terrain.segments.x + 1), height: Int(terrain.segments.y + 1), depth: 1), threadsPerThreadgroup: MTLSize(width: 8, height: 8, depth: 1))
computeEncoder.popDebugGroup()
computeEncoder.endEncoding()
}

2
Terrain2/Shaders/TerrainAlgorithms.metal
View file

@ -46,7 +46,7 @@ private:
kernel void updateGeometryHeights(texture2d<float> texture [[texture(GeneratorTextureIndexIn)]],
constant float2 *texCoords [[buffer(GeneratorBufferIndexTexCoords)]],
constant Uniforms &uniforms [[buffer(GeneratorBufferIndexUniforms)]],
device float3 *vertexes [[buffer(GeneratorBufferIndexVertexes)]],
device packed_float3 *vertexes [[buffer(GeneratorBufferIndexVertexes)]],
uint2 tid [[thread_position_in_grid]])
{
constexpr sampler s(coord::normalized, address::clamp_to_zero, filter::linear);