commit model builder tutorial

draw_and_create_model_no_pipeline.py

@@ -0,0 +1,230 @@
+# Draw models without a pipeline
+
+import harfang as hg
+
+hg.InputInit()
+hg.WindowSystemInit()
+
+res_x, res_y = 1280, 720
+win = hg.RenderInit('Harfang - Draw Models no Pipeline', res_x, res_y, hg.RF_VSync | hg.RF_MSAA4X)
+
+# vertex layout, materials and models
+vtx_layout = hg.VertexLayoutPosFloatNormUInt8()
+
+mdl_builder = hg.ModelBuilder()
+
+# - 
+vertex0 = hg.Vertex()
+vertex0.pos = hg.Vec3(-0.5, -
+					  0.5, -0.5)
+vertex0.normal = hg.Vec3(0, 0, -1)
+vertex0.uv0 = hg.Vec2(0, 0)
+a = mdl_builder.AddVertex(vertex0)
+
+vertex1 = hg.Vertex()
+vertex1.pos = hg.Vec3(-0.5,
+					  0.5, -0.5)
+vertex1.normal = hg.Vec3(0, 0, -1)
+vertex1.uv0 = hg.Vec2(0, 1)
+b = mdl_builder.AddVertex(vertex1)
+
+vertex2 = hg.Vertex()
+vertex2.pos = hg.Vec3(
+	0.5, 0.5, -0.5)
+vertex2.normal = hg.Vec3(0, 0, -1)
+vertex2.uv0 = hg.Vec2(1, 1)
+c = mdl_builder.AddVertex(vertex2)
+
+vertex3 = hg.Vertex()
+vertex3.pos = hg.Vec3(
+	0.5, -0.5, -0.5)
+vertex3.normal = hg.Vec3(0, 0, -1)
+vertex3.uv0 = hg.Vec2(1, 0)
+d = mdl_builder.AddVertex(vertex3)
+
+mdl_builder.AddTriangle(d, c, b)
+mdl_builder.AddTriangle(b, a, d)
+
+# +
+vertex0 = hg.Vertex()
+vertex0.pos = hg.Vec3(-0.5, -
+					  0.5, 0.5)
+vertex0.normal = hg.Vec3(0, 0, 1)
+vertex0.uv0 = hg.Vec2(0, 0)
+a = mdl_builder.AddVertex(vertex0)
+
+vertex1 = hg.Vertex()
+vertex1.pos = hg.Vec3(-0.5,
+					  0.5, 0.5)
+vertex1.normal = hg.Vec3(0, 0, 1)
+vertex1.uv0 = hg.Vec2(0, 1)
+b = mdl_builder.AddVertex(vertex1)
+
+vertex2 = hg.Vertex()
+vertex2.pos = hg.Vec3(
+	0.5, 0.5, 0.5)
+vertex2.normal = hg.Vec3(0, 0, 1)
+vertex2.uv0 = hg.Vec2(1, 1)
+c = mdl_builder.AddVertex(vertex2)
+
+vertex3 = hg.Vertex()
+vertex3.pos = hg.Vec3(
+	0.5, -0.5, 0.5)
+vertex3.normal = hg.Vec3(0, 0, 1)
+vertex3.uv0 = hg.Vec2(1, 0)
+d = mdl_builder.AddVertex(vertex3)
+
+mdl_builder.AddTriangle(a, b, c)
+mdl_builder.AddTriangle(a, c, d)
+
+# -
+vertex0 = hg.Vertex()
+vertex0.pos = hg.Vec3(-0.5, -
+					  0.5, -0.5)
+vertex0.normal = hg.Vec3(0, -1, 0)
+vertex0.uv0 = hg.Vec2(0, 0)
+a = mdl_builder.AddVertex(vertex0)
+
+vertex1 = hg.Vertex()
+vertex1.pos = hg.Vec3(-0.5, -
+					  0.5, 0.5)
+vertex1.normal = hg.Vec3(0, -1, 0)
+vertex1.uv0 = hg.Vec2(0, 1)
+b = mdl_builder.AddVertex(vertex1)
+
+vertex2 = hg.Vertex()
+vertex2.pos = hg.Vec3(
+	0.5, -0.5, 0.5)
+vertex2.normal = hg.Vec3(0, -1, 0)
+vertex2.uv0 = hg.Vec2(1, 1)
+c = mdl_builder.AddVertex(vertex2)
+
+vertex3 = hg.Vertex()
+vertex3.pos = hg.Vec3(
+	0.5, -0.5, -0.5)
+vertex3.normal = hg.Vec3(0, -1, 0)
+vertex3.uv0 = hg.Vec2(1, 0)
+d = mdl_builder.AddVertex(vertex3)
+
+mdl_builder.AddTriangle(a, b, c)
+mdl_builder.AddTriangle(a, c, d)
+
+# +
+vertex0 = hg.Vertex()
+vertex0.pos = hg.Vec3(-0.5,
+					  0.5, -0.5)
+vertex0.normal = hg.Vec3(0, 1, 0)
+vertex0.uv0 = hg.Vec2(0, 0)
+a = mdl_builder.AddVertex(vertex0)
+
+vertex1 = hg.Vertex()
+vertex1.pos = hg.Vec3(-0.5,
+					  0.5, 0.5)
+vertex1.normal = hg.Vec3(0, 1, 0)
+vertex1.uv0 = hg.Vec2(0, 1)
+b = mdl_builder.AddVertex(vertex1)
+
+vertex2 = hg.Vertex()
+vertex2.pos = hg.Vec3(
+	0.5, 0.5, 0.5)
+vertex2.normal = hg.Vec3(0, 1, 0)
+vertex2.uv0 = hg.Vec2(1, 1)
+c = mdl_builder.AddVertex(vertex2)
+
+vertex3 = hg.Vertex()
+vertex3.pos = hg.Vec3(
+	0.5, 0.5, -0.5)
+vertex3.normal = hg.Vec3(0, 1, 0)
+vertex3.uv0 = hg.Vec2(1, 0)
+d = mdl_builder.AddVertex(vertex3)
+
+mdl_builder.AddTriangle(d, c, b)
+mdl_builder.AddTriangle(b, a, d)
+
+# -
+vertex0 = hg.Vertex()
+vertex0.pos = hg.Vec3(-0.5, -
+					  0.5, -0.5)
+vertex0.normal = hg.Vec3(-1, 0, 0)
+vertex0.uv0 = hg.Vec2(0, 0)
+a = mdl_builder.AddVertex(vertex0)
+
+vertex1 = hg.Vertex()
+vertex1.pos = hg.Vec3(-0.5, -
+					  0.5, 0.5)
+vertex1.normal = hg.Vec3(-1, 0, 0)
+vertex1.uv0 = hg.Vec2(0, 1)
+b = mdl_builder.AddVertex(vertex1)
+
+vertex2 = hg.Vertex()
+vertex2.pos = hg.Vec3(-0.5,
+					  0.5, 0.5)
+vertex2.normal = hg.Vec3(-1, 0, 0)
+vertex2.uv0 = hg.Vec2(1, 1)
+c = mdl_builder.AddVertex(vertex2)
+
+vertex3 = hg.Vertex()
+vertex3.pos = hg.Vec3(-0.5,
+					  0.5, -0.5)
+vertex3.normal = hg.Vec3(-1, 0, 0)
+vertex3.uv0 = hg.Vec2(1, 0)
+d = mdl_builder.AddVertex(vertex3)
+
+mdl_builder.AddTriangle(d, c, b)
+mdl_builder.AddTriangle(b, a, d)
+
+# +
+vertex0 = hg.Vertex()
+vertex0.pos = hg.Vec3(
+	0.5, -0.5, -0.5)
+vertex0.normal = hg.Vec3(1, 0, 0)
+vertex0.uv0 = hg.Vec2(0, 0)
+a = mdl_builder.AddVertex(vertex0)
+
+vertex1 = hg.Vertex()
+vertex1.pos = hg.Vec3(
+	0.5, -0.5, 0.5)
+vertex1.normal = hg.Vec3(1, 0, 0)
+vertex1.uv0 = hg.Vec2(0, 1)
+b = mdl_builder.AddVertex(vertex1)
+
+vertex2 = hg.Vertex()
+vertex2.pos = hg.Vec3(
+	0.5, 0.5, 0.5)
+vertex2.normal = hg.Vec3(1, 0, 0)
+vertex2.uv0 = hg.Vec2(1, 1)
+c = mdl_builder.AddVertex(vertex2)
+
+vertex3 = hg.Vertex()
+vertex3.pos = hg.Vec3(
+	0.5, 0.5, -0.5)
+vertex3.normal = hg.Vec3(1, 0, 0)
+vertex3.uv0 = hg.Vec2(1, 0)
+d = mdl_builder.AddVertex(vertex3)
+
+mdl_builder.AddTriangle(a, b, c)
+mdl_builder.AddTriangle(a, c, d)
+
+cube_mdl = mdl_builder.MakeModel(vtx_layout)
+
+ground_mdl = hg.CreatePlaneModel(vtx_layout, 5, 5, 1, 1)
+
+shader = hg.LoadProgramFromFile('resources_compiled/shaders/mdl')
+
+# main loop
+angle = 0
+
+while not hg.ReadKeyboard().Key(hg.K_Escape) and hg.IsWindowOpen(win):
+	dt = hg.TickClock()
+	angle = angle + hg.time_to_sec_f(dt)
+
+	viewpoint = hg.TranslationMat4(hg.Vec3(0, 1, -3))
+	hg.SetViewPerspective(0, 0, 0, res_x, res_y, viewpoint)
+
+	hg.DrawModel(0, mdl, shader, [], [], hg.TransformationMat4(hg.Vec3(0, 1, 0), hg.Vec3(angle, angle, angle)))
+	hg.DrawModel(0, ground_mdl, shader, [], [], hg.TranslationMat4(hg.Vec3(0, 0, 0)))
+
+	hg.Frame()
+	hg.UpdateWindow(win)
+
+hg.RenderShutdown()