-
Notifications
You must be signed in to change notification settings - Fork 10
/
scene_draw_to_multiple_viewports.lua
80 lines (60 loc) · 3.54 KB
/
scene_draw_to_multiple_viewports.lua
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
-- Draw to multiple viewports
hg = require("harfang")
hg.InputInit()
hg.WindowSystemInit()
res_x, res_y = 1280, 720
win = hg.RenderInit('Harfang - Scene Draw to Multiple Viewports', res_x, res_y, hg.RF_VSync | hg.RF_MSAA4X)
hg.AddAssetsFolder("resources_compiled")
pipeline = hg.CreateForwardPipeline()
res = hg.PipelineResources()
-- create models
vtx_layout = hg.VertexLayoutPosFloatNormUInt8()
cube_mdl = hg.CreateCubeModel(vtx_layout, 1, 1, 1)
cube_ref = res:AddModel('cube', cube_mdl)
ground_mdl = hg.CreateCubeModel(vtx_layout, 100, 0.01, 100)
ground_ref = res:AddModel('ground', ground_mdl)
-- create materials
shader = hg.LoadPipelineProgramRefFromAssets('core/shader/default.hps', res, hg.GetForwardPipelineInfo())
mat_yellow_cube = hg.CreateMaterial(shader, 'uDiffuseColor', hg.Vec4I(255, 220, 64), 'uSpecularColor', hg.Vec4I(255, 220, 64))
mat_red_cube = hg.CreateMaterial(shader, 'uDiffuseColor', hg.Vec4I(255, 0, 0), 'uSpecularColor', hg.Vec4I(255, 0, 0))
mat_ground = hg.CreateMaterial(shader, 'uDiffuseColor', hg.Vec4I(128, 128, 128), 'uSpecularColor', hg.Vec4I(128, 128, 128))
-- setup scene (note that we do not create any camera)
scene = hg.Scene()
hg.CreateSpotLight(scene, hg.TransformationMat4(hg.Vec3(-8, 4, -5), hg.Deg3(19, 59, 0)), 0, hg.Deg(5), hg.Deg(30), hg.Color.White, hg.Color.White, 10, hg.LST_Map, 0.00005)
hg.CreatePointLight(scene, hg.TranslationMat4(hg.Vec3(3, 1, 2.5)), 5, hg.ColorI(128, 192, 255), hg.Color.Black, 0)
yellow_cube = hg.CreateObject(scene, hg.TransformationMat4(hg.Vec3(1, 0.5, 0), hg.Vec3(0, hg.Deg(0), 0)), cube_ref, {mat_yellow_cube})
hg.CreateObject(scene, hg.TranslationMat4(hg.Vec3(-1, 0.5, 0)), cube_ref, {mat_red_cube})
hg.CreateObject(scene, hg.TranslationMat4(hg.Vec3(0, 0, 0)), ground_ref, {mat_ground})
-- define viewports
viewports = {
{rect = hg.IntRect(0, 0, res_x // 2, res_y // 2), cam_pos = hg.Vec3(-4.015, 2.368, -3.484), cam_rot = hg.Vec3(0.35, 0.87, 0.0)},
{rect = hg.IntRect(res_x // 2, 0, res_x, res_y // 2), cam_pos = hg.Vec3(-4.143, 2.976, 4.127), cam_rot = hg.Vec3(0.423, 2.365, 0.0)},
{rect = hg.IntRect(0, res_y // 2, res_x // 2, res_y), cam_pos = hg.Vec3(4.020, 2.374, 3.469), cam_rot = hg.Vec3(0.353, 4.016, 0.0)},
{rect = hg.IntRect(res_x // 2, res_y // 2, res_x, res_y), cam_pos = hg.Vec3(3.469, 2.374, -4.020), cam_rot = hg.Vec3(0.353, -0.695, 0.0)}
}
-- main loop
while not hg.ReadKeyboard():Key(hg.K_Escape) and hg.IsWindowOpen(win) do
dt = hg.TickClock()
-- animate yellow cube & update scene once for all viewports
rot = yellow_cube:GetTransform():GetRot()
rot.y = rot.y + hg.time_to_sec_f(dt)
yellow_cube:GetTransform():SetRot(rot)
scene:Update(dt)
-- prepare view-independent render data (eg. spot shadow maps)
render_data = hg.SceneForwardPipelineRenderData()
views = hg.SceneForwardPipelinePassViewId()
vid = 0
vid, pass_ids = hg.PrepareSceneForwardPipelineCommonRenderData(vid, scene, render_data, pipeline, res, views)
for i,viewport in ipairs(viewports) do
-- compute viewport specific view state
view_state = hg.ComputePerspectiveViewState(hg.TransformationMat4(viewport.cam_pos, viewport.cam_rot), hg.Deg(45), 0.01, 1000, hg.ComputeAspectRatioX(res_x, res_y))
-- prepare view-dependent render data & submit draw
vid, pass_ids = hg.PrepareSceneForwardPipelineViewDependentRenderData(vid, view_state, scene, render_data, pipeline, res, views)
vid, pass_ids = hg.SubmitSceneToForwardPipeline(vid, scene, viewport.rect, view_state, pipeline, render_data, res)
end
hg.Frame()
hg.UpdateWindow(win)
end
hg.DestroyForwardPipeline(pipeline)
hg.RenderShutdown()
hg.DestroyWindow(win)