Mercurial > games > semicongine

annotate examples/E01_hello_triangle.nim @ 1065:86b9721dfc09

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
fix: again, I think, I have now a correct syncing of vertex buffers updates and drawing of multiple frames in flight XD
author sam <sam@basx.dev>
date Mon, 01 Apr 2024 22:42:50 +0700
parents e1f92e3bec46
children d27c8dbfef1c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
796
8084252b807a fix: first example
Sam <sam@basx.dev>
parents: 777
diff changeset
1 import std/tables
8084252b807a fix: first example
Sam <sam@basx.dev>
parents: 777
diff changeset
2
1059
9c364af8d3f0 did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 920
diff changeset
3 import ../semicongine
522
f2c97bdbb0b3 did: rename and update older demos to work with new APIs
Sam <sam@basx.dev>
parents:
diff changeset
4
796
8084252b807a fix: first example
Sam <sam@basx.dev>
parents: 777
diff changeset
5 # shader setup
594
512d33d314c4 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 535
diff changeset
6 const
796
8084252b807a fix: first example
Sam <sam@basx.dev>
parents: 777
diff changeset
7 shaderConfiguration = createShaderConfiguration(
1059
9c364af8d3f0 did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 920
diff changeset
8 inputs = [
796
8084252b807a fix: first example
Sam <sam@basx.dev>
parents: 777
diff changeset
9 attr[Vec3f]("position"),
8084252b807a fix: first example
Sam <sam@basx.dev>
parents: 777
diff changeset
10 attr[Vec4f]("color"),
8084252b807a fix: first example
Sam <sam@basx.dev>
parents: 777
diff changeset
11 ],
1059
9c364af8d3f0 did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 920
diff changeset
12 intermediates = [attr[Vec4f]("outcolor")],
9c364af8d3f0 did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 920
diff changeset
13 outputs = [attr[Vec4f]("color")],
9c364af8d3f0 did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 920
diff changeset
14 vertexCode = "gl_Position = vec4(position, 1.0); outcolor = color;",
9c364af8d3f0 did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 920
diff changeset
15 fragmentCode = "color = outcolor;",
594
512d33d314c4 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 535
diff changeset
16 )
522
f2c97bdbb0b3 did: rename and update older demos to work with new APIs
Sam <sam@basx.dev>
parents:
diff changeset
17
796
8084252b807a fix: first example
Sam <sam@basx.dev>
parents: 777
diff changeset
18 # scene setup
594
512d33d314c4 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 535
diff changeset
19 var
1059
9c364af8d3f0 did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 920
diff changeset
20 scene = Scene(name: "scene",
796
8084252b807a fix: first example
Sam <sam@basx.dev>
parents: 777
diff changeset
21 meshes: @[newMesh(
1059
9c364af8d3f0 did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 920
diff changeset
22 positions = [newVec3f(-0.5, 0.5), newVec3f(0, -0.5), newVec3f(0.5, 0.5)],
9c364af8d3f0 did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 920
diff changeset
23 colors = [newVec4f(1, 0, 0, 1), newVec4f(0, 1, 0, 1), newVec4f(0, 0, 1, 1)],
9c364af8d3f0 did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 920
diff changeset
24 material = VERTEX_COLORED_MATERIAL.initMaterialData()
796
8084252b807a fix: first example
Sam <sam@basx.dev>
parents: 777
diff changeset
25 )]
8084252b807a fix: first example
Sam <sam@basx.dev>
parents: 777
diff changeset
26 )
1059
9c364af8d3f0 did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 920
diff changeset
27 myengine = initEngine("Hello triangle", showFps = true)
594
512d33d314c4 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 535
diff changeset
28
1065
86b9721dfc09 fix: again, I think, I have now a correct syncing of vertex buffers updates and drawing of multiple frames in flight XD
sam <sam@basx.dev>
parents: 1064
diff changeset
29 myengine.initRenderer({VERTEX_COLORED_MATERIAL: shaderConfiguration}, inFlightFrames = 1)
1059
9c364af8d3f0 did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 920
diff changeset
30 myengine.loadScene(scene)
594
512d33d314c4 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 535
diff changeset
31
606
f41c1b78cf5b add: upgrade all simple examples to new engine version
Sam <sam@basx.dev>
parents: 597
diff changeset
32 while myengine.updateInputs() == Running and not myengine.keyWasPressed(Escape):
1059
9c364af8d3f0 did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 920
diff changeset
33 transform[Vec3f](scene.meshes[0][], "position", scale(1.001, 1.001))
9c364af8d3f0 did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 920
diff changeset
34 myengine.renderScene(scene)
594
512d33d314c4 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 535
diff changeset
35
512d33d314c4 add: correct swapchain destruction, update 1st example to be working
Sam <sam@basx.dev>
parents: 535
diff changeset
36 myengine.destroy()