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Scalar uniform array in uniform buffers

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bloeys
2024-05-26 15:03:00 +04:00
parent ff7fe4e531
commit 79cb6805c4
2 changed files with 135 additions and 15 deletions
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46
main.go
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@ -3,6 +3,7 @@ package main
import (
"fmt"
"os"
"reflect"
"runtime"
"runtime/pprof"
"strconv"
@ -676,6 +677,11 @@ func (g *Game) Init() {
func testUbos() {
xx := []int{1, 2, 3, 4}
xx2 := [4]int{1, 2, 3, 4}
fmt.Printf("XX: %v; Kind: %v; Elem Type: %v\n", reflect.ValueOf(xx), reflect.ValueOf(xx).Type().Kind(), reflect.ValueOf(xx).Type().Elem().Kind())
fmt.Printf("XX: %v; Kind: %v; Elem Type: %v\n", reflect.ValueOf(xx2), reflect.ValueOf(xx).Kind(), reflect.ValueOf(xx).Type().Elem().Kind())
ubo := buffers.NewUniformBuffer([]buffers.UniformBufferFieldInput{
{Id: 0, Type: buffers.DataTypeFloat32}, // 04 00
{Id: 1, Type: buffers.DataTypeVec3}, // 16 16
@ -728,6 +734,46 @@ func testUbos() {
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())
//
// Ubo2
//
type TestUBO2 struct {
F32 float32
V3 gglm.Vec3
F32Slice []float32
I32 int32
I32Slice []int32
}
s2 := TestUBO2{
F32: 1.5,
V3: gglm.Vec3{Data: [3]float32{11, 22, 33}},
F32Slice: []float32{-1, -2, -3, -4},
I32: 55,
I32Slice: []int32{41, 42, 43, 44, 45},
}
ubo2 := buffers.NewUniformBuffer([]buffers.UniformBufferFieldInput{
{Id: 0, Type: buffers.DataTypeFloat32},
{Id: 1, Type: buffers.DataTypeVec3},
{Id: 2, Type: buffers.DataTypeFloat32, Count: 4},
{Id: 3, Type: buffers.DataTypeInt32},
{Id: 4, Type: buffers.DataTypeInt32, Count: 5},
})
ubo2.SetStruct(s2)
var someInt32 int32
fArr := [4 * 4]float32{}
i32Arr := [5 * 4]int32{}
gl.GetBufferSubData(gl.UNIFORM_BUFFER, 0, 4, gl.Ptr(&x))
gl.GetBufferSubData(gl.UNIFORM_BUFFER, 16, 12, gl.Ptr(&v.Data[0]))
gl.GetBufferSubData(gl.UNIFORM_BUFFER, 32, 16*4, gl.Ptr(&fArr[0]))
gl.GetBufferSubData(gl.UNIFORM_BUFFER, 32+16*4, 4, gl.Ptr(&someInt32))
gl.GetBufferSubData(gl.UNIFORM_BUFFER, 32+16*4+16, 16*5, gl.Ptr(&i32Arr[0]))
fmt.Printf("f32=%f; v3=%s; f32Slice=%v; i32=%d; i32Arr=%v\n", x, v.String(), fArr, someInt32, i32Arr)
}
func (g *Game) initFbos() {