Mercurial > games > semicongine

annotate tests/test_materials.nim @ 872:1ee397815b0b

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did: image & font refactoring, add texture-atlas-packing
author Sam <sam@basx.dev>
date Sat, 20 Jan 2024 20:17:03 +0700
parents 252cbc10b25f
children 91e018270832
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1 import std/times
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2 import std/tables
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3
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4 import semicongine
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5
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6 let
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7 sampler = Sampler(magnification: VK_FILTER_NEAREST, minification: VK_FILTER_NEAREST)
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8 (RT, WT, PT) = (toRGBA("A51931").asPixel, toRGBA("F4F5F8").asPixel, toRGBA("2D2A4A").asPixel)
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9 thai = Image(width: 7, height: 5, imagedata: @[
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10 RT, RT, RT, RT, RT, RT, RT,
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11 WT, WT, WT, WT, WT, WT, WT,
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12 PT, PT, PT, PT, PT, PT, PT,
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13 WT, WT, WT, WT, WT, WT, WT,
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14 RT, RT, RT, RT, RT, RT, RT,
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15 ])
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16 swiss = loadImage("flag.png")
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17 doubleTextureMaterial = MaterialType(
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18 name:"Double texture",
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19 vertexAttributes: {
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20 "position": Vec3F32,
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21 "uv": Vec2F32,
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22 }.toTable,
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23 attributes: {"tex1": TextureType, "tex2": TextureType}.toTable
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24 )
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25 material = initMaterialData(
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26 theType=doubleTextureMaterial,
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27 name="swiss-thai",
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28 attributes={
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29 "tex1": initDataList(@[Texture(image: thai, sampler: sampler)]),
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30 "tex2": initDataList(@[Texture(image: swiss, sampler: sampler)]),
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31 }
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32 )
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33
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34 proc main() =
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35 var flag = rect()
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36 flag.material = material
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37 var scene = Scene(name: "main", meshes: @[flag])
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38 scene.addShaderGlobalArray("test2", @[0'f32, 0'f32])
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39
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40 var engine = initEngine("Test materials")
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42 const
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43 shaderConfiguration1 = createShaderConfiguration(
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44 inputs=[
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45 attr[Vec3f]("position", memoryPerformanceHint=PreferFastRead),
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46 attr[Vec2f]("uv", memoryPerformanceHint=PreferFastRead),
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47 ],
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48 intermediates=[
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49 attr[Vec2f]("uvout"),
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50 ],
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51 uniforms=[attr[float32]("test2", arrayCount=2)],
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52 samplers = @[
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53 attr[Texture]("tex1", arrayCount=1),
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54 attr[Texture]("tex2", arrayCount=1),
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55 ],
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56 outputs=[attr[Vec4f]("color")],
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57 vertexCode="""
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58 gl_Position = vec4(position.x, position.y + sin(Uniforms.test2[1]) / Uniforms.test2[1] * 0.5, position.z, 1.0);
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59 uvout = uv;""",
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60 fragmentCode="""
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61 float d = sin(Uniforms.test2[0]) * 0.5 + 0.5;
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62 color = texture(tex1[0], uvout) * (1 - d) + texture(tex2[0], uvout) * d;
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63 """,
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64 )
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65 engine.initRenderer({
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66 doubleTextureMaterial: shaderConfiguration1,
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67 })
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68 engine.loadScene(scene)
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69 var t = cpuTime()
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70 while engine.updateInputs() == Running and not engine.keyIsDown(Escape):
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71 var d = float32(cpuTime() - t)
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72 setShaderGlobalArray(scene, "test2", @[d, d * 2])
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73 engine.renderScene(scene)
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74 engine.destroy()
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77 when isMainModule:
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78 main()