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comparison tests/test_gltf.nim @ 1448:96753bec055c default tip

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add: support for "name" and "extras" on gltf nodes
author sam <sam@basx.dev>
date Sun, 09 Mar 2025 22:59:34 +0700
parents 676fc13685a9
children
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1447:b17098eb052f 1448:96753bec055c
6 6
7 import ../semicongine 7 import ../semicongine
8 import ../semicongine/rendering 8 import ../semicongine/rendering
9 import ../semicongine/loaders 9 import ../semicongine/loaders
10 import ../semicongine/input 10 import ../semicongine/input
11 import ../semicongine/gltf
11 12
12 proc test_gltf(time: float32, renderPass: RenderPass) = 13 proc test_gltf(time: float32, renderPass: RenderPass) =
13 var renderdata = initRenderData() 14 var renderdata = initRenderData()
14 15
15 type 16 type
94 Mesh = object 95 Mesh = object
95 position: GPUArray[Vec3f, VertexBuffer] 96 position: GPUArray[Vec3f, VertexBuffer]
96 color: GPUArray[Vec4f, VertexBuffer] 97 color: GPUArray[Vec4f, VertexBuffer]
97 normal: GPUArray[Vec3f, VertexBuffer] 98 normal: GPUArray[Vec3f, VertexBuffer]
98 indices: GPUArray[uint32, IndexBuffer] 99 indices: GPUArray[uint32, IndexBuffer]
99 material: int32
100 100
101 var gltfData = loadMeshes[Mesh, Material]( 101 var gltfData = loadMeshes[Mesh, Material](
102 "town.glb", 102 "town.glb",
103 # "forest.glb", 103 # "forest.glb",
104 MeshAttributeNames( 104 MeshAttributeNames(
105 POSITION: "position", 105 POSITION: "position", COLOR: @["color"], NORMAL: "normal", indices: "indices"
106 COLOR: @["color"],
107 NORMAL: "normal",
108 indices: "indices",
109 material: "material",
110 ), 106 ),
111 MaterialAttributeNames( 107 MaterialAttributeNames(
112 baseColorFactor: "color", 108 baseColorFactor: "color",
113 baseColorTexture: "colorTexture", 109 baseColorTexture: "colorTexture",
114 metallicFactor: "metallic", 110 metallicFactor: "metallic",
128 ) 124 )
129 ) 125 )
130 for i in 0 ..< gltfData.materials.len: 126 for i in 0 ..< gltfData.materials.len:
131 descriptors.data.materials[i] = asGPUValue(gltfData.materials[i], UniformBuffer) 127 descriptors.data.materials[i] = asGPUValue(gltfData.materials[i], UniformBuffer)
132 for mesh in mitems(gltfData.meshes): 128 for mesh in mitems(gltfData.meshes):
133 for primitive in mitems(mesh): 129 for primitive in mitems(mesh.primitives):
134 primitive[0].color = asGPUArray( 130 primitive.data.color = asGPUArray(
135 newSeqWith(primitive[0].position.data.len, vec4(1, 1, 1, 1)), VertexBuffer 131 newSeqWith(primitive.data.position.data.len, vec4(1, 1, 1, 1)), VertexBuffer
136 ) 132 )
137 renderdata.assignBuffers(primitive[0]) 133 renderdata.assignBuffers(primitive.data)
138 renderdata.assignBuffers(descriptors) 134 renderdata.assignBuffers(descriptors)
139 135
140 var pipeline = createPipeline(Shader(), renderPass = renderPass, cullMode = []) 136 var pipeline = createPipeline(Shader(), renderPass = renderPass, cullMode = [])
141 initDescriptorSet(renderdata, pipeline.descriptorSetLayouts[0], descriptors) 137 initDescriptorSet(renderdata, pipeline.descriptorSetLayouts[0], descriptors)
142 138
145 proc drawNode( 141 proc drawNode(
146 commandbuffer: VkCommandBuffer, pipeline: Pipeline, nodeId: int, transform: Mat4 142 commandbuffer: VkCommandBuffer, pipeline: Pipeline, nodeId: int, transform: Mat4
147 ) = 143 ) =
148 let nodeTransform = gltfData.nodes[nodeId].transform * transform 144 let nodeTransform = gltfData.nodes[nodeId].transform * transform
149 if gltfData.nodes[nodeId].mesh >= 0: 145 if gltfData.nodes[nodeId].mesh >= 0:
150 for primitive in gltfData.meshes[gltfData.nodes[nodeId].mesh].mitems: 146 for primitive in gltfData.meshes[gltfData.nodes[nodeId].mesh].primitives:
151 renderWithPushConstant( 147 renderWithPushConstant(
152 commandbuffer = commandbuffer, 148 commandbuffer = commandbuffer,
153 pipeline = pipeline, 149 pipeline = pipeline,
154 mesh = primitive[0], 150 mesh = primitive.data,
155 pushConstant = 151 pushConstant =
156 ObjectData(transform: nodeTransform, materialId: primitive[0].material), 152 ObjectData(transform: nodeTransform, materialId: primitive.material.int32),
157 ) 153 )
158 for childNode in gltfData.nodes[nodeId].children: 154 for childNode in gltfData.nodes[nodeId].children:
159 drawNode( 155 drawNode(
160 commandbuffer = commandbuffer, 156 commandbuffer = commandbuffer,
161 pipeline = pipeline, 157 pipeline = pipeline,