Mercurial > games > semicongine

comparison examples/E02_squares.nim @ 1140:5934c5615f13

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did: update all examples to work with latest refactoring
author sam <sam@basx.dev>
date Sat, 08 Jun 2024 15:16:17 +0700
parents 114f395b9144
children
comparison
equal deleted inserted replaced
1139:114f395b9144 1140:5934c5615f13
41 indices[squareIndex * 2 + 0] = [uint16(vertIndex + 0), uint16(vertIndex + 1), uint16(vertIndex + 2)] 41 indices[squareIndex * 2 + 0] = [uint16(vertIndex + 0), uint16(vertIndex + 1), uint16(vertIndex + 2)]
42 indices[squareIndex * 2 + 1] = [uint16(vertIndex + 2), uint16(vertIndex + 3), uint16(vertIndex + 0)] 42 indices[squareIndex * 2 + 1] = [uint16(vertIndex + 2), uint16(vertIndex + 3), uint16(vertIndex + 0)]
43 43
44 44
45 const 45 const
46 shaderConfiguration = createShaderConfiguration( 46 shaderConfiguration = CreateShaderConfiguration(
47 name = "default shader", 47 name = "default shader",
48 inputs = [ 48 inputs = [
49 attr[Vec3f]("position"), 49 Attr[Vec3f]("position"),
50 attr[Vec4f]("color", memoryPerformanceHint = PreferFastWrite), 50 Attr[Vec4f]("color", memoryPerformanceHint = PreferFastWrite),
51 attr[uint32]("index"), 51 Attr[uint32]("index"),
52 ], 52 ],
53 intermediates = [attr[Vec4f]("outcolor")], 53 intermediates = [Attr[Vec4f]("outcolor")],
54 uniforms = [attr[float32]("time")], 54 uniforms = [Attr[float32]("time")],
55 outputs = [attr[Vec4f]("color")], 55 outputs = [Attr[Vec4f]("color")],
56 vertexCode = """ 56 vertexCode = """
57 float pos_weight = index / 100.0; // add some gamma correction? 57 float pos_weight = index / 100.0; // add some gamma correction?
58 float t = sin(Uniforms.time * 0.5) * 0.5 + 0.5; 58 float t = sin(Uniforms.time * 0.5) * 0.5 + 0.5;
59 float v = min(1, max(0, pow(pos_weight - t, 2))); 59 float v = min(1, max(0, pow(pos_weight - t, 2)));
60 v = pow(1 - v, 3000); 60 v = pow(1 - v, 3000);
66 let matDef = MaterialType(name: "default", vertexAttributes: { 66 let matDef = MaterialType(name: "default", vertexAttributes: {
67 "position": Vec3F32, 67 "position": Vec3F32,
68 "color": Vec4F32, 68 "color": Vec4F32,
69 "index": UInt32, 69 "index": UInt32,
70 }.toTable) 70 }.toTable)
71 var squaremesh = newMesh( 71 var squaremesh = NewMesh(
72 positions = vertices, 72 positions = vertices,
73 indices = indices, 73 indices = indices,
74 colors = colors, 74 colors = colors,
75 ) 75 )
76 squaremesh[].initVertexAttribute("index", iValues.toSeq) 76 squaremesh[].InitVertexAttribute("index", iValues.toSeq)
77 squaremesh.material = matDef.InitMaterialData(name = "default") 77 squaremesh.material = matDef.InitMaterialData(name = "default")
78 78
79 var myengine = initEngine("Squares") 79 var myengine = InitEngine("Squares")
80 myengine.initRenderer({matDef: shaderConfiguration}) 80 myengine.InitRenderer({matDef: shaderConfiguration})
81 81
82 var scene = Scene(name: "scene", meshes: @[squaremesh]) 82 var scene = Scene(name: "scene", meshes: @[squaremesh])
83 scene.addShaderGlobal("time", 0.0'f32) 83 scene.AddShaderGlobal("time", 0.0'f32)
84 myengine.loadScene(scene) 84 myengine.LoadScene(scene)
85 while myengine.UpdateInputs() and not KeyWasPressed(Escape): 85 while myengine.UpdateInputs() and not KeyWasPressed(Escape):
86 scene.setShaderGlobal("time", getShaderGlobal[float32](scene, "time") + 0.0005'f) 86 scene.SetShaderGlobal("time", GetShaderGlobal[float32](scene, "time") + 0.0005'f)
87 myengine.renderScene(scene) 87 myengine.RenderScene(scene)
88 88
89 myengine.destroy() 89 myengine.Destroy()