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comparison tests/test_mesh.nim @ 239:f05497ef8fd2

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did: nicer test example, scene switching still problematic
author Sam <sam@basx.dev>
date Sat, 20 May 2023 23:21:03 +0700
parents 027f6ff06585
children f52fccedf5ab
comparison
equal deleted inserted replaced
238:ef8cea2545f8 239:f05497ef8fd2
1 import std/times
2
3 import semicongine 1 import semicongine
4 2
5 proc main() = 3 proc main() =
6 var scene = loadScene("default_cube.glb") 4 var scenes = [
5 loadScene("default_cube.glb", "1"),
6 loadScene("default_cube1.glb", "3"),
7 loadScene("default_cube2.glb", "4"),
8 loadScene("flat.glb", "5"),
9 loadScene("tutorialk-donat.glb", "6"),
10 loadScene("personv3.glb", "2"),
11 ]
7 12
8 var engine = initEngine("Test meshes") 13 var engine = initEngine("Test meshes")
9 const 14 const
10 vertexInput = @[attr[Vec3f]("POSITION", memoryPerformanceHint=PreferFastRead)] 15 vertexInput = @[
16 attr[Vec3f]("position", memoryPerformanceHint=PreferFastRead),
17 attr[uint8]("material", memoryPerformanceHint=PreferFastRead),
18 ]
19 vertexOutput = @[attr[Vec4f]("vertexColor")]
11 fragOutput = @[attr[Vec4f]("color")] 20 fragOutput = @[attr[Vec4f]("color")]
12 uniforms = @[attr[Mat4]("transform")] 21 uniforms = @[attr[Mat4]("transform"), attr[Vec4f]("material_colors", arrayCount=16), ]
13 vertexCode = compileGlslShader( 22 vertexCode = compileGlslShader(
14 stage=VK_SHADER_STAGE_VERTEX_BIT, 23 stage=VK_SHADER_STAGE_VERTEX_BIT,
15 inputs=vertexInput, 24 inputs=vertexInput,
25 outputs=vertexOutput,
16 uniforms=uniforms, 26 uniforms=uniforms,
17 main="""gl_Position = vec4(POSITION, 1.0) * Uniforms.transform;""" 27 main="""gl_Position = vec4(position, 1.0) * Uniforms.transform; vertexColor = Uniforms.material_colors[material];"""
18 ) 28 )
19 fragmentCode = compileGlslShader( 29 fragmentCode = compileGlslShader(
20 stage=VK_SHADER_STAGE_FRAGMENT_BIT, 30 stage=VK_SHADER_STAGE_FRAGMENT_BIT,
31 inputs=vertexOutput,
21 outputs=fragOutput, 32 outputs=fragOutput,
22 uniforms=uniforms, 33 uniforms=uniforms,
23 main=""" 34 main="""color = vertexColor;"""
24 color = vec4(61/255, 43/255, 31/255, 1);
25 """
26 ) 35 )
27 engine.setRenderer(engine.gpuDevice.simpleForwardRenderPass(vertexCode, fragmentCode)) 36 engine.setRenderer(engine.gpuDevice.simpleForwardRenderPass(vertexCode, fragmentCode, clearColor=newVec4f(0, 0, 0, 1)))
28 engine.addScene(scene, vertexInput) 37 for scene in scenes.mitems:
29 let rotateAxis = newVec3f(0, 1, 0) 38 engine.addScene(scene, vertexInput)
30 scene.addShaderGlobal("transform", Unit4) 39 scene.addShaderGlobal("transform", Unit4)
31 var t = cpuTime() 40 var
41 size = 1'f32
42 elevation = -float32(PI) / 3'f32
43 azimut = 0'f32
44 currentScene = 0
45
32 while engine.updateInputs() == Running and not engine.keyIsDown(Escape): 46 while engine.updateInputs() == Running and not engine.keyIsDown(Escape):
33 scene.setShaderGlobal( 47 if engine.keyWasPressed(`1`):
48 currentScene = 0
49 elif engine.keyWasPressed(`2`):
50 currentScene = 1
51 elif engine.keyWasPressed(`3`):
52 currentScene = 2
53 elif engine.keyWasPressed(`4`):
54 currentScene = 3
55 elif engine.keyWasPressed(`5`):
56 currentScene = 4
57 elif engine.keyWasPressed(`6`):
58 currentScene = 5
59
60 if engine.keyWasPressed(NumberRowExtra3):
61 size = 1'f32
62 elevation = -float32(PI) / 3'f32
63 azimut = 0'f32
64
65 size *= 1'f32 + engine.mouseWheel() * 0.05
66 azimut += engine.mouseMove().x / 180'f32
67 elevation -= engine.mouseMove().y / 180'f32
68 scenes[currentScene].setShaderGlobal(
34 "transform", 69 "transform",
35 scale3d(0.2'f32, 0.2'f32, 0.2'f32) * translate3d(0'f32, 0'f32, 1.8'f32) * rotate3d(float32(PI) / 4'f32, newVec3f(1, 0, 0)) * rotate3d(-float32(cpuTime() - t), rotateAxis) 70 scale3d(size, size, size) * rotate3d(elevation, newVec3f(1, 0, 0)) * rotate3d(azimut, Yf32)
36 ) 71 )
37 engine.renderScene(scene) 72 engine.renderScene(scenes[currentScene])
38 engine.destroy() 73 engine.destroy()
39 74
40 75
41 when isMainModule: 76 when isMainModule:
42 main() 77 main()