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Depth fbo+renderer work+texture slots enum+optimize shaders+more

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This commit is contained in:
bloeys
2024-04-13 23:55:52 +04:00
parent ddd8db3cb0
commit 040228319e
9 changed files with 311 additions and 192 deletions
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60
materials/material.go
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@ -8,6 +8,16 @@ import (
"github.com/go-gl/gl/v4.1-core/gl"
)
type TextureSlot uint32
const (
TextureSlot_Diffuse TextureSlot = 0
TextureSlot_Specular TextureSlot = 1
TextureSlot_Normal TextureSlot = 2
TextureSlot_Emission TextureSlot = 3
TextureSlot_Cubemap TextureSlot = 10
)
type Material struct {
Name string
ShaderProg shaders.ShaderProgram
@ -21,41 +31,45 @@ type Material struct {
NormalTex uint32
EmissionTex uint32
// Shininess of specular highlights
Shininess float32
// Cubemap
CubemapTex uint32
}
func (m *Material) Bind() {
gl.UseProgram(m.ShaderProg.ID)
gl.ActiveTexture(gl.TEXTURE0)
gl.BindTexture(gl.TEXTURE_2D, m.DiffuseTex)
if m.DiffuseTex != 0 {
gl.ActiveTexture(uint32(gl.TEXTURE0 + TextureSlot_Diffuse))
gl.BindTexture(gl.TEXTURE_2D, m.DiffuseTex)
}
gl.ActiveTexture(gl.TEXTURE1)
gl.BindTexture(gl.TEXTURE_2D, m.SpecularTex)
if m.SpecularTex != 0 {
gl.ActiveTexture(uint32(gl.TEXTURE0 + TextureSlot_Specular))
gl.BindTexture(gl.TEXTURE_2D, m.SpecularTex)
}
gl.ActiveTexture(gl.TEXTURE2)
gl.BindTexture(gl.TEXTURE_2D, m.NormalTex)
if m.NormalTex != 0 {
gl.ActiveTexture(uint32(gl.TEXTURE0 + TextureSlot_Normal))
gl.BindTexture(gl.TEXTURE_2D, m.NormalTex)
}
gl.ActiveTexture(gl.TEXTURE3)
gl.BindTexture(gl.TEXTURE_2D, m.EmissionTex)
if m.EmissionTex != 0 {
gl.ActiveTexture(uint32(gl.TEXTURE0 + TextureSlot_Emission))
gl.BindTexture(gl.TEXTURE_2D, m.EmissionTex)
}
if m.CubemapTex != 0 {
gl.ActiveTexture(uint32(gl.TEXTURE0 + TextureSlot_Cubemap))
gl.BindTexture(gl.TEXTURE_CUBE_MAP, m.CubemapTex)
}
}
func (m *Material) UnBind() {
gl.UseProgram(0)
//TODO: Should we unbind textures here? Are these two lines needed?
// gl.ActiveTexture(gl.TEXTURE0)
// gl.BindTexture(gl.TEXTURE_2D, 0)
// gl.ActiveTexture(gl.TEXTURE1)
// gl.BindTexture(gl.TEXTURE_2D, 0)
// gl.ActiveTexture(gl.TEXTURE2)
// gl.BindTexture(gl.TEXTURE_2D, 0)
// gl.ActiveTexture(gl.TEXTURE3)
// gl.BindTexture(gl.TEXTURE_2D, 0)
}
func (m *Material) GetAttribLoc(attribName string) int32 {
@ -132,7 +146,7 @@ func NewMaterial(matName, shaderPath string) *Material {
shdrProg, err := shaders.LoadAndCompileCombinedShader(shaderPath)
if err != nil {
logging.ErrLog.Fatalln("Failed to create new material. Err: ", err)
logging.ErrLog.Fatalf("Failed to create new material '%s'. Err: %s\n", matName, err.Error())
}
return &Material{Name: matName, ShaderProg: shdrProg, UnifLocs: make(map[string]int32), AttribLocs: make(map[string]int32)}
@ -142,7 +156,7 @@ func NewMaterialSrc(matName string, shaderSrc []byte) *Material {
shdrProg, err := shaders.LoadAndCompileCombinedShaderSrc(shaderSrc)
if err != nil {
logging.ErrLog.Fatalln("Failed to create new material. Err: ", err)
logging.ErrLog.Fatalf("Failed to create new material '%s'. Err: %s\n", matName, err.Error())
}
return &Material{Name: matName, ShaderProg: shdrProg, UnifLocs: make(map[string]int32), AttribLocs: make(map[string]int32)}