mirror of
https://github.com/bloeys/nmage.git
synced 2025-12-29 13:28:20 +00:00
Move dirLight&camPos&projViewMat to ubos
This commit is contained in:
bloeys
158
main.go
158
main.go
@ -44,12 +44,11 @@ import (
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- Skeletal animations
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- Cascaded shadow mapping
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- In some cases we DO want input even when captured by UI. We need two systems within input package, one filtered and one not✅
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- Support OpenGL 4.1 and 4.6, and default to 4.6.
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- (?) Support OpenGL 4.1 and 4.6, and default to 4.6
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- Proper model loading (i.e. load model by reading all its meshes, textures, and so on together)
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- Renderer batching
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- Scene graph
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- Separate engine loop from rendering loop? or leave it to the user?
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- Abstract keys enum away from sdl?
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- (?) Separate engine loop from rendering loop
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- Frustum culling
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- Proper Asset loading system
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- Material system editor with fields automatically extracted from the shader
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@ -209,6 +208,21 @@ func (s *SpotLight) OuterCutoffCos() float32 {
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return gglm.Cos32(s.OuterCutoffRad)
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}
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type GlobalMatricesUboData struct {
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CamPos gglm.Vec3
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ProjViewMat gglm.Mat4
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}
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type DirLightUboData struct {
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Dir gglm.Vec3
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DiffuseColor gglm.Vec3
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SpecularColor gglm.Vec3
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Shadowmap int32
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}
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type LightsUboData struct {
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DirLight DirLightUboData
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}
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const (
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UNSCALED_WINDOW_WIDTH = 1280
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UNSCALED_WINDOW_HEIGHT = 720
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@ -220,6 +234,12 @@ const (
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)
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var (
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globalMatricesUboData GlobalMatricesUboData
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globalMatricesUbo buffers.UniformBuffer
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lightsUboData LightsUboData
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lightsUbo buffers.UniformBuffer
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frameTimesMsIndex int = 0
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frameTimesMs []float32 = make([]float32, 0, FRAME_TIME_MS_SAMPLES)
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@ -570,10 +590,7 @@ func (g *Game) Init() {
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whiteMat.SetUnifInt32("material.emission", int32(materials.TextureSlot_Emission))
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whiteMat.SetUnifVec3("ambientColor", &ambientColor)
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whiteMat.SetUnifFloat32("material.shininess", whiteMat.Shininess)
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whiteMat.SetUnifVec3("dirLight.dir", &dirLight.Dir)
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whiteMat.SetUnifVec3("dirLight.diffuseColor", &dirLight.DiffuseColor)
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whiteMat.SetUnifVec3("dirLight.specularColor", &dirLight.SpecularColor)
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whiteMat.SetUnifInt32("dirLight.shadowMap", int32(materials.TextureSlot_ShadowMap1))
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whiteMat.SetUnifInt32("dirLightShadowMap", int32(materials.TextureSlot_ShadowMap1))
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whiteMat.SetUnifInt32("pointLightCubeShadowMaps", int32(materials.TextureSlot_Cubemap_Array))
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whiteMat.SetUnifInt32("spotLightShadowMaps", int32(materials.TextureSlot_ShadowMap_Array1))
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@ -588,10 +605,7 @@ func (g *Game) Init() {
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containerMat.SetUnifInt32("material.emission", int32(materials.TextureSlot_Emission))
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containerMat.SetUnifVec3("ambientColor", &ambientColor)
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containerMat.SetUnifFloat32("material.shininess", containerMat.Shininess)
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containerMat.SetUnifVec3("dirLight.dir", &dirLight.Dir)
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containerMat.SetUnifVec3("dirLight.diffuseColor", &dirLight.DiffuseColor)
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containerMat.SetUnifVec3("dirLight.specularColor", &dirLight.SpecularColor)
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containerMat.SetUnifInt32("dirLight.shadowMap", int32(materials.TextureSlot_ShadowMap1))
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containerMat.SetUnifInt32("dirLightShadowMap", int32(materials.TextureSlot_ShadowMap1))
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containerMat.SetUnifInt32("pointLightCubeShadowMaps", int32(materials.TextureSlot_Cubemap_Array))
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containerMat.SetUnifInt32("spotLightShadowMaps", int32(materials.TextureSlot_ShadowMap_Array1))
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@ -606,10 +620,7 @@ func (g *Game) Init() {
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groundMat.SetUnifInt32("material.emission", int32(materials.TextureSlot_Emission))
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groundMat.SetUnifVec3("ambientColor", &ambientColor)
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groundMat.SetUnifFloat32("material.shininess", groundMat.Shininess)
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groundMat.SetUnifVec3("dirLight.dir", &dirLight.Dir)
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groundMat.SetUnifVec3("dirLight.diffuseColor", &dirLight.DiffuseColor)
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groundMat.SetUnifVec3("dirLight.specularColor", &dirLight.SpecularColor)
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groundMat.SetUnifInt32("dirLight.shadowMap", int32(materials.TextureSlot_ShadowMap1))
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groundMat.SetUnifInt32("dirLightShadowMap", int32(materials.TextureSlot_ShadowMap1))
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groundMat.SetUnifInt32("pointLightCubeShadowMaps", int32(materials.TextureSlot_Cubemap_Array))
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groundMat.SetUnifInt32("spotLightShadowMaps", int32(materials.TextureSlot_ShadowMap_Array1))
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@ -623,10 +634,7 @@ func (g *Game) Init() {
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palleteMat.SetUnifInt32("material.emission", int32(materials.TextureSlot_Emission))
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palleteMat.SetUnifVec3("ambientColor", &ambientColor)
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palleteMat.SetUnifFloat32("material.shininess", palleteMat.Shininess)
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palleteMat.SetUnifVec3("dirLight.dir", &dirLight.Dir)
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palleteMat.SetUnifVec3("dirLight.diffuseColor", &dirLight.DiffuseColor)
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palleteMat.SetUnifVec3("dirLight.specularColor", &dirLight.SpecularColor)
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palleteMat.SetUnifInt32("dirLight.shadowMap", int32(materials.TextureSlot_ShadowMap1))
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palleteMat.SetUnifInt32("dirLightShadowMap", int32(materials.TextureSlot_ShadowMap1))
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palleteMat.SetUnifInt32("pointLightCubeShadowMaps", int32(materials.TextureSlot_Cubemap_Array))
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palleteMat.SetUnifInt32("spotLightShadowMaps", int32(materials.TextureSlot_ShadowMap_Array1))
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@ -667,12 +675,46 @@ func (g *Game) Init() {
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g.initFbos()
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g.updateLights()
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// Ubos
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g.initUbos()
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// testUbos()
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// Initial camera update
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cam.Update()
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updateAllProjViewMats(cam.ProjMat, cam.ViewMat)
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}
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// Ubos
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testUbos()
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func (g *Game) initUbos() {
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globalMatricesUbo = buffers.NewUniformBuffer(
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[]buffers.UniformBufferFieldInput{
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{Id: 0, Type: buffers.DataTypeVec3},
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{Id: 1, Type: buffers.DataTypeMat4},
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},
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)
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globalMatricesUbo.SetBindPoint(0)
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groundMat.SetUniformBlockBindingPoint("GlobalMatrices", 0)
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whiteMat.SetUniformBlockBindingPoint("GlobalMatrices", 0)
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containerMat.SetUniformBlockBindingPoint("GlobalMatrices", 0)
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palleteMat.SetUniformBlockBindingPoint("GlobalMatrices", 0)
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lightsUbo = buffers.NewUniformBuffer(
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[]buffers.UniformBufferFieldInput{
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{Id: 0, Type: buffers.DataTypeStruct, Subfields: []buffers.UniformBufferFieldInput{
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{Id: 1, Type: buffers.DataTypeVec3},
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{Id: 2, Type: buffers.DataTypeVec3},
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{Id: 3, Type: buffers.DataTypeVec3},
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{Id: 4, Type: buffers.DataTypeInt32},
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}},
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},
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)
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lightsUbo.SetBindPoint(1)
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groundMat.SetUniformBlockBindingPoint("Lights", 1)
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whiteMat.SetUniformBlockBindingPoint("Lights", 1)
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containerMat.SetUniformBlockBindingPoint("Lights", 1)
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palleteMat.SetUniformBlockBindingPoint("Lights", 1)
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}
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func testUbos() {
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@ -976,10 +1018,16 @@ func (g *Game) initFbos() {
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func (g *Game) updateLights() {
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// Directional light
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whiteMat.ShadowMapTex1 = dirLightDepthMapFbo.Attachments[0].Id
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containerMat.ShadowMapTex1 = dirLightDepthMapFbo.Attachments[0].Id
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groundMat.ShadowMapTex1 = dirLightDepthMapFbo.Attachments[0].Id
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palleteMat.ShadowMapTex1 = dirLightDepthMapFbo.Attachments[0].Id
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lightsUboData.DirLight = DirLightUboData{
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Dir: dirLight.Dir,
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DiffuseColor: dirLight.DiffuseColor,
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SpecularColor: dirLight.SpecularColor,
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Shadowmap: int32(dirLightDepthMapFbo.Attachments[0].Id),
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}
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whiteMat.ShadowMapTex1 = uint32(lightsUboData.DirLight.Shadowmap)
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containerMat.ShadowMapTex1 = uint32(lightsUboData.DirLight.Shadowmap)
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groundMat.ShadowMapTex1 = uint32(lightsUboData.DirLight.Shadowmap)
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palleteMat.ShadowMapTex1 = uint32(lightsUboData.DirLight.Shadowmap)
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// Point lights
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for i := 0; i < len(pointLights); i++ {
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@ -1085,6 +1133,9 @@ func (g *Game) updateLights() {
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containerMat.ShadowMapTexArray1 = spotLightDepthMapFbo.Attachments[0].Id
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groundMat.ShadowMapTexArray1 = spotLightDepthMapFbo.Attachments[0].Id
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palleteMat.ShadowMapTexArray1 = spotLightDepthMapFbo.Attachments[0].Id
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lightsUbo.Bind()
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lightsUbo.SetStruct(lightsUboData)
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}
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func (g *Game) Update() {
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@ -1096,6 +1147,9 @@ func (g *Game) Update() {
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g.updateCameraLookAround()
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g.updateCameraPos()
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globalMatricesUboData.CamPos = cam.Pos
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updateAllProjViewMats(cam.ProjMat, cam.ViewMat)
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g.showDebugWindow()
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}
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@ -1145,6 +1199,11 @@ func (g *Game) showDebugWindow() {
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imgui.Spacing()
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//
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// Lights
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//
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updateLights := false
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// Ambient light
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imgui.Text("Ambient Light")
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@ -1163,30 +1222,29 @@ func (g *Game) showDebugWindow() {
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imgui.Checkbox("Render Directional Light Shadows", &renderDirLightShadows)
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if imgui.DragFloat3("Direction", &dirLight.Dir.Data) {
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whiteMat.SetUnifVec3("dirLight.dir", &dirLight.Dir)
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containerMat.SetUnifVec3("dirLight.dir", &dirLight.Dir)
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groundMat.SetUnifVec3("dirLight.dir", &dirLight.Dir)
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palleteMat.SetUnifVec3("dirLight.dir", &dirLight.Dir)
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updateLights = true
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}
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if imgui.ColorEdit3("Diffuse Color", &dirLight.DiffuseColor.Data) {
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whiteMat.SetUnifVec3("dirLight.diffuseColor", &dirLight.DiffuseColor)
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containerMat.SetUnifVec3("dirLight.diffuseColor", &dirLight.DiffuseColor)
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groundMat.SetUnifVec3("dirLight.diffuseColor", &dirLight.DiffuseColor)
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palleteMat.SetUnifVec3("dirLight.diffuseColor", &dirLight.DiffuseColor)
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updateLights = true
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}
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if imgui.ColorEdit3("Specular Color", &dirLight.SpecularColor.Data) {
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whiteMat.SetUnifVec3("dirLight.specularColor", &dirLight.SpecularColor)
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containerMat.SetUnifVec3("dirLight.specularColor", &dirLight.SpecularColor)
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groundMat.SetUnifVec3("dirLight.specularColor", &dirLight.SpecularColor)
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palleteMat.SetUnifVec3("dirLight.specularColor", &dirLight.SpecularColor)
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updateLights = true
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}
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imgui.DragFloat3("dPos", &dirLightPos.Data)
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imgui.DragFloat("dSize", &dirLightSize)
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imgui.DragFloat("dNear", &dirLightNear)
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imgui.DragFloat("dFar", &dirLightFar)
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if imgui.DragFloat3("dPos", &dirLightPos.Data) {
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updateLights = true
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}
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if imgui.DragFloat("dSize", &dirLightSize) {
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updateLights = true
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}
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if imgui.DragFloat("dNear", &dirLightNear) {
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updateLights = true
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}
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if imgui.DragFloat("dFar", &dirLightFar) {
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updateLights = true
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}
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imgui.Spacing()
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@ -1368,6 +1426,10 @@ func (g *Game) showDebugWindow() {
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imgui.EndListBox()
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}
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if updateLights {
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g.updateLights()
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}
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// Demo fbo
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imgui.Text("Demo Framebuffer")
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imgui.Checkbox("Show FBO##0", &renderToDemoFbo)
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@ -1415,8 +1477,6 @@ func (g *Game) updateCameraLookAround() {
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}
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cam.UpdateRotation(pitch, yaw)
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updateAllProjViewMats(cam.ProjMat, cam.ViewMat)
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}
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func (g *Game) updateCameraPos() {
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@ -1450,7 +1510,6 @@ func (g *Game) updateCameraPos() {
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if update {
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cam.Update()
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updateAllProjViewMats(cam.ProjMat, cam.ViewMat)
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}
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}
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@ -1465,10 +1524,8 @@ var (
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func (g *Game) Render() {
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whiteMat.SetUnifVec3("camPos", &cam.Pos)
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containerMat.SetUnifVec3("camPos", &cam.Pos)
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groundMat.SetUnifVec3("camPos", &cam.Pos)
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palleteMat.SetUnifVec3("camPos", &cam.Pos)
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globalMatricesUbo.Bind()
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globalMatricesUbo.SetStruct(globalMatricesUboData)
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rotatingCubeTrMat1.Rotate(rotatingCubeSpeedDeg1*gglm.Deg2Rad*timing.DT(), 0, 1, 0)
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rotatingCubeTrMat2.Rotate(rotatingCubeSpeedDeg2*gglm.Deg2Rad*timing.DT(), 1, 1, 0)
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@ -1721,12 +1778,9 @@ func (g *Game) DeInit() {
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func updateAllProjViewMats(projMat, viewMat gglm.Mat4) {
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projViewMat := *projMat.Clone().Mul(&viewMat)
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globalMatricesUboData.ProjViewMat = projViewMat
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unlitMat.SetUnifMat4("projViewMat", &projViewMat)
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whiteMat.SetUnifMat4("projViewMat", &projViewMat)
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containerMat.SetUnifMat4("projViewMat", &projViewMat)
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groundMat.SetUnifMat4("projViewMat", &projViewMat)
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palleteMat.SetUnifMat4("projViewMat", &projViewMat)
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debugDepthMat.SetUnifMat4("projViewMat", &projViewMat)
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// Update skybox projViewMat
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@ -14,22 +14,14 @@ layout(location=3) in vec2 vertUV0In;
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layout(location=4) in vec3 vertColorIn;
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//
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// Uniforms
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// UBOs
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//
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uniform vec3 camPos;
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uniform mat4 modelMat;
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uniform mat3 normalMat;
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uniform mat4 projViewMat;
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uniform mat4 dirLightProjViewMat;
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uniform mat4 spotLightProjViewMats[NUM_SPOT_LIGHTS];
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struct DirLight {
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vec3 dir;
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vec3 diffuseColor;
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vec3 specularColor;
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sampler2D shadowMap;
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};
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uniform DirLight dirLight;
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uniform sampler2D dirLightShadowMap;
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struct PointLight {
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vec3 pos;
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@ -41,7 +33,6 @@ struct PointLight {
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float nearPlane;
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float farPlane;
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};
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uniform PointLight pointLights[NUM_POINT_LIGHTS];
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struct SpotLight {
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vec3 pos;
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@ -51,7 +42,24 @@ struct SpotLight {
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float innerCutoff;
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float outerCutoff;
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};
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layout (std140) uniform GlobalMatrices {
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vec3 camPos;
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mat4 projViewMat;
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};
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layout (std140) uniform Lights {
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DirLight dirLight;
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};
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//
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// Uniforms
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//
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uniform PointLight pointLights[NUM_POINT_LIGHTS];
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uniform SpotLight spotLights[NUM_SPOT_LIGHTS];
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uniform mat4 modelMat;
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uniform mat4 dirLightProjViewMat;
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uniform mat4 spotLightProjViewMats[NUM_SPOT_LIGHTS];
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//
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// Outputs
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@ -165,9 +173,8 @@ struct DirLight {
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vec3 dir;
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vec3 diffuseColor;
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vec3 specularColor;
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sampler2D shadowMap;
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};
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uniform DirLight dirLight;
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uniform sampler2D dirLightShadowMap;
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struct PointLight {
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vec3 pos;
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@ -193,6 +200,15 @@ struct SpotLight {
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uniform SpotLight spotLights[NUM_SPOT_LIGHTS];
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uniform sampler2DArray spotLightShadowMaps;
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layout (std140) uniform GlobalMatrices {
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vec3 camPos;
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mat4 projViewMat;
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};
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layout (std140) uniform Lights {
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DirLight dirLight;
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};
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uniform vec3 ambientColor = vec3(0.2, 0.2, 0.2);
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//
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@ -260,7 +276,7 @@ vec3 CalcDirLight()
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vec3 finalSpecular = specularAmount * dirLight.specularColor * specularTexColor.rgb;
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// Shadow
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float shadow = CalcDirShadow(dirLight.shadowMap, lightDir);
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float shadow = CalcDirShadow(dirLightShadowMap, lightDir);
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return (finalDiffuse + finalSpecular) * (1 - shadow);
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}
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