Mercurial > games > semicongine

comparison examples/E02_squares.nim @ 529:eb92723db7b2

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fix: API changes
author Sam <sam@basx.dev>
date Sun, 05 Feb 2023 00:28:18 +0700
parents f2c97bdbb0b3
children 21c276c0a968
comparison
equal deleted inserted replaced
528:3ec1be39e1ad 529:eb92723db7b2
59 1), uint16(vertIndex + 2)] 59 1), uint16(vertIndex + 2)]
60 indices[squareIndex * 2 + 1] = [uint16(vertIndex + 2), uint16(vertIndex + 60 indices[squareIndex * 2 + 1] = [uint16(vertIndex + 2), uint16(vertIndex +
61 3), uint16(vertIndex + 0)] 61 3), uint16(vertIndex + 0)]
62 62
63 63
64 type PIndexedMesh = IndexedMesh[VertexDataA, 64 type PIndexedMesh = Mesh[VertexDataA,
65 uint16] # required so we can use ctor with ref/on heap 65 uint16] # required so we can use ctor with ref/on heap
66 var squaremesh = PIndexedMesh( 66 var squaremesh = PIndexedMesh(
67 vertexData: VertexDataA( 67 vertexData: VertexDataA(
68 position11: PositionAttribute[Vec2](data: @vertices), 68 position11: PositionAttribute[Vec2](data: @vertices),
69 color22: ColorAttribute[Vec3](data: @colors), 69 color22: ColorAttribute[Vec3](data: @colors),
70 index: GenericAttribute[uint32](data: @iValues), 70 index: GenericAttribute[uint32](data: @iValues),
71 ), 71 ),
72 indexed: true,
72 indices: @indices 73 indices: @indices
73 ) 74 )
74 var scene = newThing("scene", newThing("squares", squaremesh)) 75 var scene = newThing("scene", newThing("squares", squaremesh))
75 76
76 const vertexShader = generateVertexShaderCode[VertexDataA, Uniforms]( 77 const vertexShader = generateVertexShaderCode[VertexDataA, Uniforms](
77 """ 78 """
78 float pos_weight = index / 100.0; // add some gamma correction? 79 float pos_weight = index / 100.0; // add some gamma correction?
79 float t = sin(uniforms.t * 0.5) * 0.5 + 0.5; 80 float t = sin(uniforms.t * 0.5) * 0.5 + 0.5;
80 float v = min(1, max(0, pow(pos_weight - t, 2))); 81 float v = min(1, max(0, pow(pos_weight - t, 2)));
81 v = pow(1 - v, 3000); 82 v = pow(1 - v, 3000);
82 out_color = vec3(in_color.r, in_color.g, v * 0.5); 83 out_color = vec4(in_color.r, in_color.g, v * 0.5, 1.0);
83 """ 84 """
84 ) 85 )
85 const fragmentShader = generateFragmentShaderCode[VertexDataA]() 86 const fragmentShader = generateFragmentShaderCode[VertexDataA]()
87 static:
88 echo vertexShader
86 pipeline = setupPipeline[VertexDataA, Uniforms, uint16]( 89 pipeline = setupPipeline[VertexDataA, Uniforms, uint16](
87 myengine, 90 myengine,
88 scene, 91 scene,
89 vertexShader, 92 vertexShader,
90 fragmentShader 93 fragmentShader