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draw_triangle_use_UBO support u16 position format and u8 norm color format.

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HuYingzhuo(hugo/hyzboy) 2023-10-12 15:00:39 +08:00
parent 6b13c159d8
commit 7eff39b3b0
1 changed files with 35 additions and 29 deletions
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64
example/Basic/draw_triangle_use_UBO.cpp
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@ -4,29 +4,29 @@
#include<hgl/math/Math.h>
#include<hgl/filesystem/FileSystem.h>
#include<hgl/graph/SceneInfo.h>
#include<hgl/graph/VKVertexInputConfig.h>
#include<hgl/graph/VKRenderablePrimitiveCreater.h>
#include<hgl/graph/mtl/Material2DCreateConfig.h>
using namespace hgl;
using namespace hgl::graph;
constexpr uint32_t SCREEN_WIDTH=1280;
constexpr uint32_t SCREEN_HEIGHT=720;
constexpr uint32_t VERTEX_COUNT=3;
static float position_data[VERTEX_COUNT][2]=
static float position_data_float[VERTEX_COUNT][2]=
{
{0.5, 0.25},
{0.75, 0.75},
{0.25, 0.75}
};
constexpr float color_data[VERTEX_COUNT][4]=
static uint16 position_data_u16[VERTEX_COUNT][2]={};
constexpr uint8 color_data[VERTEX_COUNT*4]=
{
{1,0,0,1},
{0,1,0,1},
{0,0,1,1}
255,0,0,255,
0,255,0,255,
0,0,255,255
};
//#define USE_ZERO2ONE_COORD //使用左上角0,0右下角1,1的坐标系
@ -46,17 +46,27 @@ private:
{
mtl::Material2DCreateConfig cfg(device->GetDeviceAttribute(),"VertexColor2D",Prim::Triangles);
VILConfig vil_config;
#ifdef USE_ZERO2ONE_COORD
cfg.coordinate_system=CoordinateSystem2D::ZeroToOne;
#else
cfg.coordinate_system=CoordinateSystem2D::Ortho;
cfg.position_format =VAT_UVEC2; //这里指定shader中使用uvec2当做顶点输入格式
// ^
// + 这上下两种格式要配套，否则会出错
// v
vil_config.Add(VAN::Position,VF_V2U16); //这里指定VBO中使用RG16U当做顶点数据格式
#endif//USE_ZERO2ONE_COORD
vil_config.Add(VAN::Color,VF_V4UN8); //这里指定VBO中使用RGBA8UNorm当做颜色数据格式
cfg.local_to_world=false;
AutoDelete<mtl::MaterialCreateInfo> mci=mtl::CreateVertexColor2D(&cfg);
material_instance=db->CreateMaterialInstance(mci);
material_instance=db->CreateMaterialInstance(mci,&vil_config);
if(!material_instance)
return(false);
@ -71,18 +81,13 @@ private:
{
RenderablePrimitiveCreater rpc(db,"Triangle",VERTEX_COUNT);
#ifndef USE_ZERO2ONE_COORD //使用ortho坐标系
for(uint i=0;i<VERTEX_COUNT;i++)
{
position_data[i][0]*=SCREEN_WIDTH;
position_data[i][1]*=SCREEN_HEIGHT;
}
#ifdef USE_ZERO2ONE_COORD //使用0 to 1坐标系
if(!rpc.SetVBO(VAN::Position, VF_V2F, position_data_float ))return(false);
#else //使用ortho坐标系
if(!rpc.SetVBO(VAN::Position, VF_V2U16, position_data_u16 ))return(false);
#endif//USE_ZERO2ONE_COORD
if(!rpc.SetVBO(VAN::Position, VF_V2F, position_data))return(false);
if(!rpc.SetVBO(VAN::Color, VF_V4F, color_data ))return(false);
if(!rpc.SetVBO(VAN::Color, VF_V4UN8, color_data ))return(false);
render_obj=rpc.Create(material_instance,pipeline);
return(true);
@ -90,11 +95,19 @@ private:
public:
bool Init()
bool Init(uint w,uint h)
{
if(!VulkanApplicationFramework::Init(SCREEN_WIDTH,SCREEN_HEIGHT))
if(!VulkanApplicationFramework::Init(w,h))
return(false);
#ifndef USE_ZERO2ONE_COORD
for(uint i=0;i<VERTEX_COUNT;i++)
{
position_data_u16[i][0]=position_data_float[i][0]*w;
position_data_u16[i][1]=position_data_float[i][1]*h;
}
#endif//
if(!InitMaterial())
return(false);
@ -117,12 +130,5 @@ public:
int main(int,char **)
{
TestApp app;
if(!app.Init())
return(-1);
while(app.Run());
return 0;
RunApp<TestApp>(1280,720);
}