Mercurial > games > semicongine

annotate examples/E01_hello_triangle.nim @ 253:ad078e26a1c7

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
fix: API changes
author sam <sam@basx.dev>
date Wed, 24 May 2023 01:31:21 +0700
parents f3912838cd69
children 95281f2db400
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
56
94d7eed3f118 did: cleanup main namespace, add: better coordinate handling in input example
Sam <sam@basx.dev>
parents: 40
diff changeset
1 import semicongine
0
5daf3f236d87 add: initial version
Sam <sam@basx.dev>
parents:
diff changeset
2
5daf3f236d87 add: initial version
Sam <sam@basx.dev>
parents:
diff changeset
3
133
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
4 const
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
5 vertexInput = @[
163
25d97fa0ad5c fix: API change for shader attributes
Sam <sam@basx.dev>
parents: 145
diff changeset
6 attr[Vec3f]("position"),
210
f3912838cd69 fix: always use rgba
Sam <sam@basx.dev>
parents: 203
diff changeset
7 attr[Vec4f]("color"),
133
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
8 ]
210
f3912838cd69 fix: always use rgba
Sam <sam@basx.dev>
parents: 203
diff changeset
9 vertexOutput = @[attr[Vec4f]("outcolor")]
133
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
10 fragOutput = @[attr[Vec4f]("color")]
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
11 vertexCode = compileGlslShader(
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
12 stage=VK_SHADER_STAGE_VERTEX_BIT,
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
13 inputs=vertexInput,
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
14 outputs=vertexOutput,
136
fc5db4f1f94e did: rewrite example 02 with new engine approach
Sam <sam@basx.dev>
parents: 133
diff changeset
15 main="""
fc5db4f1f94e did: rewrite example 02 with new engine approach
Sam <sam@basx.dev>
parents: 133
diff changeset
16 gl_Position = vec4(position, 1.0);
fc5db4f1f94e did: rewrite example 02 with new engine approach
Sam <sam@basx.dev>
parents: 133
diff changeset
17 outcolor = color;
fc5db4f1f94e did: rewrite example 02 with new engine approach
Sam <sam@basx.dev>
parents: 133
diff changeset
18 """
19
b55d6ecde79d did: introduce scene graph, meshs and generic vertex buffers
Sam <sam@basx.dev>
parents: 12
diff changeset
19 )
133
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
20 fragmentCode = compileGlslShader(
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
21 stage=VK_SHADER_STAGE_FRAGMENT_BIT,
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
22 inputs=vertexOutput,
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
23 outputs=fragOutput,
210
f3912838cd69 fix: always use rgba
Sam <sam@basx.dev>
parents: 203
diff changeset
24 main="color = outcolor;"
133
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
25 )
19
b55d6ecde79d did: introduce scene graph, meshs and generic vertex buffers
Sam <sam@basx.dev>
parents: 12
diff changeset
26
133
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
27 var
203
84fd522fdf3f did: update examples to use new API for scene + scene globals
Sam <sam@basx.dev>
parents: 163
diff changeset
28 triangle = newScene("scene", newEntity(
133
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
29 "triangle",
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
30 newMesh(
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
31 [newVec3f(-0.5, 0.5), newVec3f(0, -0.5), newVec3f(0.5, 0.5)],
210
f3912838cd69 fix: always use rgba
Sam <sam@basx.dev>
parents: 203
diff changeset
32 [newVec4f(1, 0, 0, 1), newVec4f(0, 1, 0, 1), newVec4f(0, 0, 1, 1)],
133
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
33 )
203
84fd522fdf3f did: update examples to use new API for scene + scene globals
Sam <sam@basx.dev>
parents: 163
diff changeset
34 ))
133
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
35 myengine = initEngine("Hello triangle")
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
36 renderPass = myengine.gpuDevice.simpleForwardRenderPass(vertexCode, fragmentCode)
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
37
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
38 myengine.setRenderer(renderPass)
253
ad078e26a1c7 fix: API changes
sam <sam@basx.dev>
parents: 210
diff changeset
39 myengine.addScene(triangle, vertexInput, @[])
133
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
40
145
a4e6e76128e6 add: upgrade all simple examples to new engine version
Sam <sam@basx.dev>
parents: 136
diff changeset
41 while myengine.updateInputs() == Running and not myengine.keyWasPressed(Escape):
133
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
42 myengine.renderScene(triangle)
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
43
9f2c178beb60 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 74
diff changeset
44 myengine.destroy()