Mercurial > games > semicongine

annotate tests/test_vulkan_wrapper.nim @ 583:90537a8887ae

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did: implement uniforms, some refactoring
author Sam <sam@basx.dev>
date Sun, 09 Apr 2023 01:04:54 +0700
parents 8cf5d3f921ae
children 55be3579dc30
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1 import std/options
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2
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3 import semicongine
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4
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5 proc diagnostics(instance: Instance) =
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6 # diagnostic output
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7 # print basic driver infos
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8 echo "Layers"
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9 for layer in getLayers():
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10 echo " " & layer
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11 echo "Instance extensions"
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12 for extension in getInstanceExtensions():
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13 echo " " & extension
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14
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15 echo "Devices"
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16 for device in instance.getPhysicalDevices():
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17 echo " " & $device
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18 echo " Rating: " & $device.rateGraphics()
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19 echo " Extensions"
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20 for extension in device.getExtensions():
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21 echo " " & $extension
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22 echo " Properties"
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23 echo " " & $device.getProperties()
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24 echo " Features"
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25 echo " " & $device.getFeatures()
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26 echo " Queue families"
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27 for queueFamily in device.getQueueFamilies():
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28 echo " " & $queueFamily
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29 echo " Surface present modes"
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30 for mode in device.getSurfacePresentModes():
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31 echo " " & $mode
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32 echo " Surface formats"
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33 for format in device.getSurfaceFormats():
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34 echo " " & $format
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35
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36 when isMainModule:
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37 # INIT ENGINE:
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38 # create instance
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39 var thewindow = createWindow("Test")
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40 var instance = thewindow.createInstance(
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41 vulkanVersion=VK_MAKE_API_VERSION(0, 1, 3, 0),
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42 instanceExtensions= @["VK_EXT_debug_utils"],
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43 layers= @["VK_LAYER_KHRONOS_validation", "VK_LAYER_MESA_overlay"]
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44 )
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45 var debugger = instance.createDebugMessenger()
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46 # create devices
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47 let selectedPhysicalDevice = instance.getPhysicalDevices().filterBestGraphics()
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48 var device = instance.createDevice(
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49 selectedPhysicalDevice,
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50 @[],
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51 @["VK_EXT_index_type_uint8"],
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52 selectedPhysicalDevice.filterForGraphicsPresentationQueues()
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53 )
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54
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55 # INIT RENDERER:
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56 const
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57 vertexInput = @[
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58 attr[Vec3f]("position"),
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59 attr[Vec3f]("color"),
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60 attr[Mat4]("transform", perInstance=true)
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61 ]
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62 vertexOutput = @[attr[Vec3f]("outcolor")]
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63 uniforms = @[attr[float32]("time")]
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64 fragOutput = @[attr[Vec4f]("color")]
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65 vertexCode = compileGlslShader(
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66 stage=VK_SHADER_STAGE_VERTEX_BIT,
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67 inputs=vertexInput,
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68 uniforms=uniforms,
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69 outputs=vertexOutput,
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70 body="""gl_Position = vec4(position, 1.0); outcolor = color * sin(Uniforms.time) * 0.5 + 0.5;"""
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71 )
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72 fragmentCode = compileGlslShader(
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73 stage=VK_SHADER_STAGE_FRAGMENT_BIT,
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74 inputs=vertexOutput,
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75 uniforms=uniforms,
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76 outputs=fragOutput,
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77 body="color = vec4(outcolor, 1);"
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78 )
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79 var
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80 vertexshader = device.createShaderModule(vertexCode)
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81 fragmentshader = device.createShaderModule(fragmentCode)
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82 surfaceFormat = device.physicalDevice.getSurfaceFormats().filterSurfaceFormat()
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83 renderPass = device.simpleForwardRenderPass(surfaceFormat.format, vertexshader, fragmentshader, 2)
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84 (swapchain, res) = device.createSwapchain(renderPass, surfaceFormat, device.firstGraphicsQueue().get().family, 2)
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85 if res != VK_SUCCESS:
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86 raise newException(Exception, "Unable to create swapchain")
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87
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88 # INIT SCENE
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89 var time = initShaderGlobal("time", 0.0'f32)
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90 var thescene = Scene(
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91 name: "main",
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92 root: newEntity("root",
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93 newEntity("stuff", time),
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94 newEntity("triangle1", newMesh(
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95 positions=[newVec3f(0.0, -0.5), newVec3f(0.5, 0.5), newVec3f(-0.5, 0.5)],
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96 colors=[newVec3f(1.0, 0.0, 0.0), newVec3f(0.0, 1.0, 0.0), newVec3f(0.0, 0.0, 1.0)],
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97 )),
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98 newEntity("triangle1b", newMesh(
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99 positions=[newVec3f(0.0, -0.4), newVec3f(0.4, 0.4), newVec3f(-0.4, 0.5)],
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100 colors=[newVec3f(1.0, 0.0, 0.0), newVec3f(0.0, 1.0, 0.0), newVec3f(0.0, 0.0, 1.0)],
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101 )),
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102 newEntity("triangle2a", newMesh(
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103 positions=[newVec3f(0.0, 0.5), newVec3f(0.5, -0.5), newVec3f(-0.5, -0.5)],
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104 colors=[newVec3f(1.0, 0.0, 0.0), newVec3f(0.0, 1.0, 0.0), newVec3f(0.0, 0.0, 1.0)],
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105 indices=[[0'u16, 2'u16, 1'u16]]
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106 )),
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107 newEntity("triangle2b", newMesh(
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108 positions=[newVec3f(0.0, 0.4), newVec3f(0.4, -0.4), newVec3f(-0.4, -0.4)],
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109 colors=[newVec3f(1.0, 0.0, 0.0), newVec3f(0.0, 1.0, 0.0), newVec3f(0.0, 0.0, 1.0)],
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110 indices=[[0'u16, 2'u16, 1'u16]]
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111 )),
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112 newEntity("triangle3a", newMesh(
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113 positions=[newVec3f(0.4, 0.5), newVec3f(0.9, -0.3), newVec3f(0.0, -0.3)],
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114 colors=[newVec3f(1.0, 1.0, 0.0), newVec3f(1.0, 1.0, 0.0), newVec3f(1.0, 1.0, 0.0)],
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115 indices=[[0'u32, 2'u32, 1'u32]],
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116 autoResize=false
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117 )),
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118 newEntity("triangle3b", newMesh(
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119 positions=[newVec3f(0.4, 0.5), newVec3f(0.9, -0.3), newVec3f(0.0, -0.3)],
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120 colors=[newVec3f(1.0, 1.0, 0.0), newVec3f(1.0, 1.0, 0.0), newVec3f(1.0, 1.0, 0.0)],
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121 indices=[[0'u32, 2'u32, 1'u32]],
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122 autoResize=false
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123 )),
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124 )
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125 )
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126 thescene.setupDrawables(renderPass)
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127 swapchain.setupUniforms(thescene)
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128
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129 # MAINLOOP
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130 echo "Setup successfull, start rendering"
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131 for i in 0 ..< 1:
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132 setValue[float32](time.value, get[float32](time.value) + 0.0005)
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133 echo get[float32](time.value)
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134 discard swapchain.drawScene(thescene)
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135 echo "Rendered ", swapchain.framesRendered, " frames"
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136 checkVkResult device.vk.vkDeviceWaitIdle()
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137
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138 # cleanup
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139 echo "Start cleanup"
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140
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141 # destroy scene
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142 thescene.destroy()
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143
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144 # destroy renderer
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145 vertexshader.destroy()
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146 fragmentshader.destroy()
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147 renderPass.destroy()
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148 swapchain.destroy()
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eaedc0369c38 yay: first triangle rendering with new engine implmentation
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149
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150 # destroy engine
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151 device.destroy()
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152 debugger.destroy()
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153 instance.destroy()
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154 thewindow.destroy()