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Skybox demo
This commit is contained in:
bloeys
92
main.go
92
main.go
@ -16,6 +16,7 @@ import (
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"github.com/bloeys/nmage/renderer/rend3dgl"
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"github.com/bloeys/nmage/timing"
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nmageimgui "github.com/bloeys/nmage/ui/imgui"
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"github.com/go-gl/gl/v4.1-core/gl"
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"github.com/inkyblackness/imgui-go/v4"
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"github.com/veandco/go-sdl2/sdl"
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)
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@ -47,15 +48,19 @@ var (
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cam *camera.Camera
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simpleMat *materials.Material
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cubeMesh *meshes.Mesh
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skyboxMat *materials.Material
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chairMesh *meshes.Mesh
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cubeMesh *meshes.Mesh
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skyboxMesh *meshes.Mesh
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cubeModelMat = gglm.NewTrMatId()
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lightPos1 = gglm.NewVec3(-2, 0, 2)
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lightColor1 = gglm.NewVec3(1, 1, 1)
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debugDrawDepthBuffer bool
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debugDepthMat *materials.Material
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debugDrawDepthBuffer bool
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skyboxCmap assets.Cubemap
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)
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@ -153,16 +158,27 @@ func (g *OurGame) handleWindowEvents(e sdl.Event) {
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func (g *OurGame) Init() {
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var err error
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//Create materials
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simpleMat = materials.NewMaterial("Simple mat", "./res/shaders/simple.glsl")
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debugDepthMat = materials.NewMaterial("Debug depth math", "./res/shaders/debug-depth.glsl")
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debugDepthMat = materials.NewMaterial("Debug depth mat", "./res/shaders/debug-depth.glsl")
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skyboxMat = materials.NewMaterial("Skybox mat", "./res/shaders/skybox.glsl")
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//Load meshes
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var err error
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cubeMesh, err = meshes.NewMesh("Cube", "./res/models/chair.fbx", 0)
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// cubeMesh, err = meshes.NewMesh("Cube", "./res/models/tex-cube.fbx", 0)
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cubeMesh, err = meshes.NewMesh("Cube", "./res/models/tex-cube.fbx", 0)
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if err != nil {
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logging.ErrLog.Fatalln("Failed to load cube mesh. Err: ", err)
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logging.ErrLog.Fatalln("Failed to load mesh. Err: ", err)
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}
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chairMesh, err = meshes.NewMesh("Chair", "./res/models/chair.fbx", 0)
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if err != nil {
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logging.ErrLog.Fatalln("Failed to load mesh. Err: ", err)
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}
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skyboxMesh, err = meshes.NewMesh("Skybox", "./res/models/skybox-cube.obj", 0)
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if err != nil {
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logging.ErrLog.Fatalln("Failed to load mesh. Err: ", err)
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}
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//Load textures
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@ -171,16 +187,16 @@ func (g *OurGame) Init() {
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logging.ErrLog.Fatalln("Failed to load texture. Err: ", err)
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}
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// skyboxCmap, err = assets.LoadCubemapTextures(
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// "./res/textures/sb-right.jpg", "./res/textures/sb-left.jpg",
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// "./res/textures/sb-top.jpg", "./res/textures/sb-bottom.jpg",
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// "./res/textures/sb-front.jpg", "./res/textures/sb-back.jpg",
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// )
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// if err != nil {
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// logging.ErrLog.Fatalln("Failed to load cubemap. Err: ", err)
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// }
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skyboxCmap, err = assets.LoadCubemapTextures(
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"./res/textures/sb-right.jpg", "./res/textures/sb-left.jpg",
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"./res/textures/sb-top.jpg", "./res/textures/sb-bottom.jpg",
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"./res/textures/sb-front.jpg", "./res/textures/sb-back.jpg",
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)
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if err != nil {
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logging.ErrLog.Fatalln("Failed to load cubemap. Err: ", err)
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}
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//Configure material
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// Configure materials
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simpleMat.DiffuseTex = tex.TexID
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//Movement, scale and rotation
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@ -249,6 +265,8 @@ func (g *OurGame) Update() {
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if input.KeyClicked(sdl.K_F4) {
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fmt.Printf("Pos: %s; Forward: %s; |Forward|: %f\n", cam.Pos.String(), cam.Forward.String(), cam.Forward.Mag())
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}
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g.Win.SDLWin.SetTitle(fmt.Sprint("nMage (", timing.GetAvgFPS(), " fps)"))
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}
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func (g *OurGame) updateCameraLookAround() {
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@ -322,13 +340,51 @@ func (g *OurGame) Render() {
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rowSize := 1
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for y := 0; y < rowSize; y++ {
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for x := 0; x < rowSize; x++ {
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tempModelMatrix.Translate(gglm.NewVec3(-1, 0, 0))
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tempModelMatrix.Translate(gglm.NewVec3(-6, 0, 0))
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window.Rend.Draw(cubeMesh, tempModelMatrix, matToUse)
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}
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tempModelMatrix.Translate(gglm.NewVec3(float32(rowSize), -1, 0))
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}
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g.Win.SDLWin.SetTitle(fmt.Sprint("nMage (", timing.GetAvgFPS(), " fps)"))
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g.DrawSkybox()
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}
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func (g *OurGame) DrawSkybox() {
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// glDepthMask(GL_FALSE);
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// skyboxShader.use();
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// // ... set view and projection matrix
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// glBindVertexArray(skyboxVAO);
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// glBindTexture(GL_TEXTURE_CUBE_MAP, cubemapTexture);
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// glDrawArrays(GL_TRIANGLES, 0, 36);
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// glDepthMask(GL_TRUE);
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// // ... draw rest of the scene
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gl.Disable(gl.CULL_FACE)
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gl.DepthFunc(gl.LEQUAL)
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skyboxMesh.Buf.Bind()
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skyboxMat.Bind()
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gl.ActiveTexture(gl.TEXTURE0)
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gl.BindTexture(gl.TEXTURE_CUBE_MAP, skyboxCmap.TexID)
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viewMat := cam.ViewMat.Clone()
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viewMat.Set(0, 3, 0)
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viewMat.Set(1, 3, 0)
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viewMat.Set(2, 3, 0)
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viewMat.Set(3, 0, 0)
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viewMat.Set(3, 1, 0)
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viewMat.Set(3, 2, 0)
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viewMat.Set(3, 3, 0)
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skyboxMat.SetUnifMat4("viewMat", viewMat)
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skyboxMat.SetUnifMat4("projMat", &cam.ProjMat)
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// window.Rend.Draw(cubeMesh, gglm.NewTrMatId(), skyboxMat)
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for i := 0; i < len(skyboxMesh.SubMeshes); i++ {
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gl.DrawElementsBaseVertexWithOffset(gl.TRIANGLES, skyboxMesh.SubMeshes[i].IndexCount, gl.UNSIGNED_INT, uintptr(skyboxMesh.SubMeshes[i].BaseIndex), skyboxMesh.SubMeshes[i].BaseVertex)
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}
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gl.DepthFunc(gl.LESS)
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gl.Enable(gl.CULL_FACE)
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}
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func (g *OurGame) FrameEnd() {
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