Mercurial > games > semicongine

annotate tests/test_mesh.nim @ 703:120a1baf2f8d

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del: possible bad use of variable
author Sam <sam@basx.dev>
date Sun, 21 May 2023 01:04:55 +0700
parents abc0d97392cb
children f52fccedf5ab
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1 import semicongine
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2
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3 proc main() =
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4 var scenes = [
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5 loadScene("default_cube.glb", "1"),
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6 loadScene("default_cube1.glb", "3"),
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7 loadScene("default_cube2.glb", "4"),
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8 loadScene("flat.glb", "5"),
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9 loadScene("tutorialk-donat.glb", "6"),
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10 loadScene("personv3.glb", "2"),
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11 ]
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12
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13 var engine = initEngine("Test meshes")
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14 const
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15 vertexInput = @[
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16 attr[Vec3f]("position", memoryPerformanceHint=PreferFastRead),
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17 attr[uint8]("material", memoryPerformanceHint=PreferFastRead),
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18 ]
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19 vertexOutput = @[attr[Vec4f]("vertexColor")]
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20 fragOutput = @[attr[Vec4f]("color")]
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21 uniforms = @[attr[Mat4]("transform"), attr[Vec4f]("material_colors", arrayCount=16), ]
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22 vertexCode = compileGlslShader(
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23 stage=VK_SHADER_STAGE_VERTEX_BIT,
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24 inputs=vertexInput,
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25 outputs=vertexOutput,
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26 uniforms=uniforms,
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27 main="""gl_Position = vec4(position, 1.0) * Uniforms.transform; vertexColor = Uniforms.material_colors[material];"""
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28 )
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29 fragmentCode = compileGlslShader(
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30 stage=VK_SHADER_STAGE_FRAGMENT_BIT,
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31 inputs=vertexOutput,
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32 outputs=fragOutput,
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33 uniforms=uniforms,
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34 main="""color = vertexColor;"""
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35 )
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36 engine.setRenderer(engine.gpuDevice.simpleForwardRenderPass(vertexCode, fragmentCode, clearColor=newVec4f(0, 0, 0, 1)))
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37 for scene in scenes.mitems:
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38 engine.addScene(scene, vertexInput)
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39 scene.addShaderGlobal("transform", Unit4)
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40 var
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41 size = 1'f32
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42 elevation = -float32(PI) / 3'f32
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43 azimut = 0'f32
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44 currentScene = 0
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45
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46 while engine.updateInputs() == Running and not engine.keyIsDown(Escape):
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47 if engine.keyWasPressed(`1`):
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48 currentScene = 0
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49 elif engine.keyWasPressed(`2`):
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50 currentScene = 1
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51 elif engine.keyWasPressed(`3`):
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52 currentScene = 2
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53 elif engine.keyWasPressed(`4`):
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54 currentScene = 3
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55 elif engine.keyWasPressed(`5`):
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56 currentScene = 4
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57 elif engine.keyWasPressed(`6`):
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58 currentScene = 5
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59
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60 if engine.keyWasPressed(NumberRowExtra3):
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61 size = 1'f32
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62 elevation = -float32(PI) / 3'f32
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63 azimut = 0'f32
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64
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65 size *= 1'f32 + engine.mouseWheel() * 0.05
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66 azimut += engine.mouseMove().x / 180'f32
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67 elevation -= engine.mouseMove().y / 180'f32
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68 scenes[currentScene].setShaderGlobal(
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69 "transform",
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70 scale3d(size, size, size) * rotate3d(elevation, newVec3f(1, 0, 0)) * rotate3d(azimut, Yf32)
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71 )
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72 engine.renderScene(scenes[currentScene])
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73 engine.destroy()
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74
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75
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76 when isMainModule:
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77 main()