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Struct to ubo support

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bloeys
2024-05-26 12:55:58 +04:00
parent cb20e8ba8b
commit ff7fe4e531
2 changed files with 263 additions and 26 deletions
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75
main.go
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@ -671,41 +671,64 @@ func (g *Game) Init() {
updateAllProjViewMats(cam.ProjMat, cam.ViewMat)
// Ubos
// testUbos()
testUbos()
}
// func testUbos() {
func testUbos() {
// ubo := buffers.NewUniformBuffer([]buffers.UniformBufferFieldInput{
// {Id: 0, Type: buffers.DataTypeFloat32}, // 04 00
// {Id: 1, Type: buffers.DataTypeVec3}, // 16 16
// {Id: 2, Type: buffers.DataTypeFloat32}, // 04 32
// {Id: 3, Type: buffers.DataTypeMat2}, // 32 48
// }) // Total size: 48+32 = 80
ubo := buffers.NewUniformBuffer([]buffers.UniformBufferFieldInput{
{Id: 0, Type: buffers.DataTypeFloat32}, // 04 00
{Id: 1, Type: buffers.DataTypeVec3}, // 16 16
{Id: 2, Type: buffers.DataTypeFloat32}, // 04 32
{Id: 3, Type: buffers.DataTypeMat2}, // 32 48
}) // Total size: 48+32 = 80
// println("!!!!!!!!!!!!! Id:", ubo.Id, "; Size:", ubo.Size)
// fmt.Printf("%+v\n", ubo.Fields)
println("!!!!!!!!!!!!! Id:", ubo.Id, "; Size:", ubo.Size)
fmt.Printf("%+v\n", ubo.Fields)
// ubo.Bind()
// ubo.SetFloat32(0, 99)
// ubo.SetFloat32(2, 199)
// ubo.SetVec3(1, &gglm.Vec3{Data: [3]float32{33, 33, 33}})
ubo.Bind()
ubo.SetFloat32(0, 99)
ubo.SetFloat32(2, 199)
ubo.SetVec3(1, &gglm.Vec3{Data: [3]float32{33, 33, 33}})
// ubo.SetMat2(3, &gglm.Mat2{Data: [2][2]float32{{1, 3}, {2, 4}}})
ubo.SetMat2(3, &gglm.Mat2{Data: [2][2]float32{{1, 3}, {2, 4}}})
// var v gglm.Vec3
// var m2 gglm.Mat2
// var x, x2 float32
// gl.GetBufferSubData(gl.UNIFORM_BUFFER, 0, 4, gl.Ptr(&x))
// gl.GetBufferSubData(gl.UNIFORM_BUFFER, 32, 4, gl.Ptr(&x2))
// gl.GetBufferSubData(gl.UNIFORM_BUFFER, 16, 12, gl.Ptr(&v.Data[0]))
// gl.GetBufferSubData(gl.UNIFORM_BUFFER, 48, 16, gl.Ptr(&m2.Data[0][0]))
var v gglm.Vec3
var m2 gglm.Mat2
var x, x2 float32
gl.GetBufferSubData(gl.UNIFORM_BUFFER, 0, 4, gl.Ptr(&x))
gl.GetBufferSubData(gl.UNIFORM_BUFFER, 32, 4, gl.Ptr(&x2))
gl.GetBufferSubData(gl.UNIFORM_BUFFER, 16, 12, gl.Ptr(&v.Data[0]))
gl.GetBufferSubData(gl.UNIFORM_BUFFER, 48, 16, gl.Ptr(&m2.Data[0][0]))
// fmt.Printf("x=%f; x2=%f; v3=%s; m2=%s\n", x, x2, v.String(), m2.String())
fmt.Printf("x=%f; x2=%f; v3=%s; m2=%s\n", x, x2, v.String(), m2.String())
// ubo.SetVec3(1, &gglm.Vec3{Data: [3]float32{-123, 33, 33}})
// gl.GetBufferSubData(gl.UNIFORM_BUFFER, 16, 12, gl.Ptr(&v.Data[0]))
// }
ubo.SetVec3(1, &gglm.Vec3{Data: [3]float32{-123, 33, 33}})
gl.GetBufferSubData(gl.UNIFORM_BUFFER, 16, 12, gl.Ptr(&v.Data[0]))
type TestUBO struct {
FirstF32 float32
V3 gglm.Vec3
SecondF32 float32
M2 gglm.Mat2
}
s := TestUBO{
FirstF32: 1.5,
V3: gglm.Vec3{Data: [3]float32{11, 22, 33}},
SecondF32: 9.5,
M2: gglm.Mat2{Data: [2][2]float32{{6, 8}, {7, 9}}},
}
ubo.SetStruct(s)
gl.GetBufferSubData(gl.UNIFORM_BUFFER, 0, 4, gl.Ptr(&x))
gl.GetBufferSubData(gl.UNIFORM_BUFFER, 32, 4, gl.Ptr(&x2))
gl.GetBufferSubData(gl.UNIFORM_BUFFER, 16, 12, gl.Ptr(&v.Data[0]))
gl.GetBufferSubData(gl.UNIFORM_BUFFER, 48, 16, gl.Ptr(&m2.Data[0][0]))
fmt.Printf("x=%f; x2=%f; v3=%s; m2=%s\n", x, x2, v.String(), m2.String())
}
func (g *Game) initFbos() {