Flipping character - xna

I would like to flip character when it walks left\right, I created a character from different body parts so flipping each of them caused this:
the reason of course was because it flipped the body parts in their own position, but not all the player together.
after that I had an idea and it was to draw the player to render target and flip the rendertarget when drawing, it worked (kind of), but when I walked when flipped it walked backwards and it also flipped the player position on the screen. here is the code:
if(mLeavusSprite.isflipped==0)
spriteBatch.Draw(character, rec,rec, Color.White,0,Vector2.Zero,SpriteEffects.None,0);
else
spriteBatch.Draw(character, rec, rec, Color.White, 0, Vector2.Zero, SpriteEffects.FlipHorizontally, 0);
character=render target that the player was drawn to.
is there anything I can do? flipping manually going to be a serious pain, I will need to move manually over 10 animations with 4+ frames each twice!
edit:
here is the code for drawing:
if (Frame == 0)
{
HeadPosition.X = Position.X;
HeadPosition.Y = Position.Y;
BodyPosition.X = HeadPosition.X + 8;
BodyPosition.Y = HeadPosition.Y + 32;
TopHandPosition.X = HeadPosition.X + 2;
TopHandPosition.Y = HeadPosition.Y + 36;
BackHandPosition.X = HeadPosition.X + 20;
BackHandPosition.Y = HeadPosition.Y + 36;
HeadSource = new Rectangle(0, 0, this.Head.Width, this.Head.Height);
BodySource = new Rectangle(0, 0, 24, 54);
TopHandSource = new Rectangle(0, 0, 10, 27);
BackHandSource = new Rectangle(0, 0, 15, 27);
theSpriteBatch.Draw(BackHand, BackHandPosition, BackHandSource,
Color.White, 0.0f, Vector2.Zero, Scale, FlipIs, 0);
theSpriteBatch.Draw(Body, BodyPosition, BodySource,
Color.White, 0.0f, Vector2.Zero, Scale, FlipIs, 0);
theSpriteBatch.Draw(Head, HeadPosition, HeadSource,
Color.White, 0.0f, Vector2.Zero, Scale, FlipIs, 0);
theSpriteBatch.Draw(TopHand, TopHandPosition, TopHandSource,
Color.White, 0.0f, Vector2.Zero, Scale, FlipIs, 0);
}
Edit 2:
if (Frame == 0)
{
HeadPosition.X = Position.X;
HeadPosition.Y = Position.Y;
BodyPosition.X = HeadPosition.X + 8 ;
BodyPosition.Y = HeadPosition.Y + 32;
TopHandPosition.X = HeadPosition.X + 2 ;
TopHandPosition.Y = HeadPosition.Y + 36;
BackHandPosition.X = HeadPosition.X + 20 ;
BackHandPosition.Y = HeadPosition.Y + 36;
HeadSource = new Rectangle(0, 0, this.Head.Width, this.Head.Height);
BodySource = new Rectangle(0, 0, 24, 54);
TopHandSource = new Rectangle(0, 0, 10, 27);
BackHandSource = new Rectangle(0, 0, 15, 27);
int bigx=0;
int smallx=0;
float[] numbers = new[] { HeadPosition.X, BodyPosition.X , TopHandPosition.X, BackHandPosition.X};
float min = numbers.Min();
numbers = new[] { HeadPosition.X+HeadSource.Width, BodyPosition.X + BodySource.Width, TopHandPosition.X + TopHandSource.Width, BackHandPosition.X + BackHandSource.Width };
float max = numbers.Max();
float center = (max - min) / 2;
if (flip==1)
{
HeadPosition.X = Position.X;
BodyPosition.X = HeadPosition.X +center+ 8*flipOffset;
TopHandPosition.X = HeadPosition.X +center+ 2*flipOffset;
BackHandPosition.X = HeadPosition.X +center+ 20*flipOffset;
}
Debug.WriteLine("fff: " + center);
theSpriteBatch.Draw(BackHand, BackHandPosition, BackHandSource, Color.White, 0.0f, Vector2.Zero, Scale, FlipIs, 0);
theSpriteBatch.Draw(Body, BodyPosition, BodySource, Color.White, 0.0f, Vector2.Zero, Scale, FlipIs, 0);
theSpriteBatch.Draw(Head, HeadPosition, HeadSource, Color.White, 0.0f, Vector2.Zero, Scale, FlipIs, 0);
theSpriteBatch.Draw(TopHand, TopHandPosition, TopHandSource, Color.White, 0.0f, Vector2.Zero, Scale, FlipIs, 0);
}

hmm.. that is a tricky one.
There's probably a few different ways to do this and I think drawing they player to a render target is a reasonable approach if you can get it to work.
However, if you want a quick and dirty approach you might be able to simply flip the offsets of each part like this:
var flipOffset = FlipIs == SpriteEffects.FlipHorizontally ? -1 : 1;
if (Frame == 0)
{
HeadPosition.X = Position.X;
HeadPosition.Y = Position.Y;
BodyPosition.X = HeadPosition.X + 8 * flipOffset;
BodyPosition.Y = HeadPosition.Y + 32 * flipOffset;
TopHandPosition.X = HeadPosition.X + 2 * flipOffset;
TopHandPosition.Y = HeadPosition.Y + 36 * flipOffset;
BackHandPosition.X = HeadPosition.X + 20 * flipOffset;
BackHandPosition.Y = HeadPosition.Y + 36 * flipOffset;
HeadSource = new Rectangle(0, 0, this.Head.Width, this.Head.Height);
BodySource = new Rectangle(0, 0, 24, 54);
TopHandSource = new Rectangle(0, 0, 10, 27);
BackHandSource = new Rectangle(0, 0, 15, 27);
theSpriteBatch.Draw(BackHand, BackHandPosition, BackHandSource, Color.White, 0.0f, Vector2.Zero, Scale, FlipIs, 0);
theSpriteBatch.Draw(Body, BodyPosition, BodySource, Color.White, 0.0f, Vector2.Zero, Scale, FlipIs, 0);
theSpriteBatch.Draw(Head, HeadPosition, HeadSource, Color.White, 0.0f, Vector2.Zero, Scale, FlipIs, 0);
theSpriteBatch.Draw(TopHand, TopHandPosition, TopHandSource,Color.White, 0.0f, Vector2.Zero, Scale, FlipIs, 0);
}
This is assuming that Position is right in the center of the sprite, if not you might need to do some tweaking.
Look, I'll be honest with you. There are better ways to approach this problem, but they'd require a significant redesign of the code and it's difficult to explain in one answer.
The first thing I would do to refactor the design is create a class to represent a single Sprite part to hold the common data points (offset, source rectangle, texture, color, etc) and setup data in one place. The animation code needs to be decoupled from the drawing code, etc.

Related

How do I produce a Negative Buffer of a polygon in GEOS?

I am trying to produce a negative buffer (offset) of a polygon using GEOS (with the c api).
So far I have accomplished a positive offset (see image), however when I try to make the width '-'ve, it produces nothing. I suspect that 'offset' requires clipping somehow prior to retrieving the exterior ring.
Had a good look through documentation but can't solve it, any help would be greatly appreciated!!
My code is below if that helps at all:
#include <geos_c.h>
// Define coordinate sequence
int noPoints = 6 + 1; // +1 because it is a loop
GEOSCoordSequence* points = GEOSCoordSeq_create(noPoints, 2 /*# ordinates*/);
GEOSCoordSeq_setX(points, 0, 0);
GEOSCoordSeq_setY(points, 0, 0);
GEOSCoordSeq_setX(points, 1, 0);
GEOSCoordSeq_setY(points, 1, 50);
GEOSCoordSeq_setX(points, 2, 50);
GEOSCoordSeq_setY(points, 2, 50);
GEOSCoordSeq_setX(points, 3, 50);
GEOSCoordSeq_setY(points, 3, 0);
GEOSCoordSeq_setX(points, 4, 30);
GEOSCoordSeq_setY(points, 4, 15);
GEOSCoordSeq_setX(points, 5, 20);
GEOSCoordSeq_setY(points, 5, 15);
GEOSCoordSeq_setX(points, noPoints-1, 0);
GEOSCoordSeq_setY(points, noPoints-1, 0);
// Define linear ring
GEOSGeometry* ploop = GEOSGeom_createLinearRing(points);
// Define offset
double width = 15;
int quadsegs = 100;
int endCapStyle = 1;
int joinStyle = 1;
double mitreLimit = 1.0;
const GEOSGeometry* offset = GEOSBufferWithStyle(ploop, width, quadsegs, endCapStyle, joinStyle, mitreLimit);
// Get exterior ring
const GEOSGeometry* exteriorRing = GEOSGetExteriorRing(offset);
// Convert to coord sequence and draw points
const GEOSCoordSequence *coordSeq = GEOSGeom_getCoordSeq(exteriorRing);
uint numPoints = GEOSGeomGetNumPoints(exteriorRing);
double xCoord, yCoord;
for (uint p = 0; p < numPoints; p++) {
GEOSCoordSeq_getX(coordSeq, p, &xCoord);
GEOSCoordSeq_getY(coordSeq, p, &yCoord);
printf("x: %g\ty:%g\n", xCoord, yCoord);
drawPoint(xCoord, yCoord);
}
Thanks in advance!
Finally solved it! the geometry I was feeding in was a linear ring, rather than a polygon. For anyone with a similar issue in the future:
Replace:
GEOSGeometry* ploop = GEOSGeom_createLinearRing(points);
With:
GEOSGeometry* rloop = GEOSGeom_createLinearRing(points);
const GEOSGeometry* ploop = GEOSGeom_createPolygon(rloop, NULL, 0);

DirectX 11 Render to Texture Issue

In my code, i am making 2 rectangles,
Rectangle1: Rendering On a Texture.
Rectangle2: Rendering On Back Buffer.
I am trying to do programmable blending,so need to access the destination pixel in pixel shader.
In my code,
I am creating a texture like below:
d3d11Device->CreateTexture2D(&textureDesc, NULL, &renderTargetTextureMap);
After this i am creating Render Target view of the texture.
d3d11Device->CreateRenderTargetView(renderTargetTextureMap, &renderTargetViewDesc, &renderTargetViewMap);
After this i am declaring vertex and pixel shader.
Then in my draw call,
i am performing following thing:
float bgColor[4] = {0.0f, 0.0f,0.0f, 1.0f };
d3d11DevCon->ClearRenderTargetView(renderTargetViewMap, bgColor);
float bgColor2[4] = { 0.0f, 1.0f, 0.0f, 1.0f };
////////////////////////////////////////////////Buffer 1///////////////////////////////////////////////////////////////
//Set the vertex buffer
UINT stride = sizeof(Vertex);
UINT offset = 0;
///////////////////////////////////////////////////////////Buffer 2//////////////////////////////////////////////////////////////////
d3d11DevCon->IASetIndexBuffer(d2dIndexBuffer, DXGI_FORMAT_R32_UINT, 0);
d3d11DevCon->IASetVertexBuffers(0, 1, &triangleVertBuffer, &stride, &offset);
////Draw the triangle
d3d11DevCon->DrawIndexed(6, 0, 0);
I assume that since i have set my render target view as renderTargetViewMap, so my draw call will render to texture only.
Now i am rendering to my backbuffer:
////////////////////////////////////////////
d3d11DevCon->OMSetRenderTargets(1, &renderTargetView, NULL);
d3d11DevCon->PSSetShaderResources(0, 1, &shaderResourceViewMap);
//d3d11DevCon->ClearRenderTargetView(renderTargetView, bgColor2);
d3d11DevCon->IASetIndexBuffer(d2dIndexBuffer2, DXGI_FORMAT_R32_UINT, 0);
d3d11DevCon->IASetVertexBuffers(0, 1, &triangleVertBuffer2, &stride, &offset);
////Draw the triangle
d3d11DevCon->DrawIndexed(6, 0, 0);
//Present the backbuffer to the screen
SwapChain->Present(0, 0);
So, in this way my rendering is happening.
Issue Face:
In my pixel shader,
VS_OUTPUT VS(float4 inPos : POSITION, float4 inColor : COLOR)
{
VS_OUTPUT output;
output.Pos = inPos;
output.Color = inColor;
return output;
}
float4 PS(VS_OUTPUT input) : SV_TARGET
{
float2 temp;
temp = input.Pos;
float4 diffuse = ObjTexture.Sample(ObjSamplerState,0.5+0.5*temp);
return input.Color + diffuse;
}
Here the diffuse is comming out to be equal to my bgcolor which i have set when rendering to texture
float bgColor[4] = {0.0f, 0.0f,0.0f, 1.0f };
d3d11DevCon->ClearRenderTargetView(renderTargetViewMap, bgColor);
I have also drawn a rectangle on it, but those pixels i am not able to access.
How can i access the pixel of rectangle that i have drawn on rendering to texture.
This is Issue Image
Desired Result
Shader File: Effect.fx
struct VS_OUTPUT
{
float4 Pos : SV_POSITION;
float4 Color : COLOR;
};
Texture2D ObjTexture;
SamplerState ObjSamplerState;
VS_OUTPUT VS(float4 inPos : POSITION, float4 inColor : COLOR)
{
VS_OUTPUT output;
output.Pos = inPos;
output.Color = inColor;
return output;
}
float4 PS(VS_OUTPUT input) : SV_TARGET
{
float2 temp;
temp = input.Pos;
float4 diffuse = ObjTexture.Sample(ObjSamplerState,0.5+0.5*temp);
return input.Color + diffuse;
}
Edit - 1:
With my latest change in code, i am able to blend my rectangle 2 with rectangle 1, but one issue i am facing is that when i blend then major part of my rectangle 2 is changes to yellow (red + green) on edges only i am able to see the actual green color.
Modified code:
main.cpp
//Include and link appropriate libraries and headers//
#pragma comment(lib, "d3d11.lib")
#pragma comment(lib, "d3dx11.lib")
#pragma comment(lib, "d3dx10.lib")
#include <windows.h>
#include <d3d11.h>
#include <d3dx11.h>
#include <d3dx10.h>
#include <xnamath.h>
//Global Declarations - Interfaces//
IDXGISwapChain* SwapChain;
ID3D11Device* d3d11Device;
ID3D11DeviceContext* d3d11DevCon;
ID3D11RenderTargetView* renderTargetView;
ID3D11Buffer* triangleVertBuffer;
ID3D11Buffer* triangleVertBuffer2;
ID3D11VertexShader* VS;
ID3D11PixelShader* PS;
ID3D10Blob* VS_Buffer;
ID3D10Blob* PS_Buffer;
ID3D11InputLayout* vertLayout;
XMMATRIX mapView;
XMMATRIX mapProjection;
XMVECTOR DefaultForward = XMVectorSet(0.0f, 0.0f, 1.0f, 0.0f);
//Global Declarations - Others//
LPCTSTR WndClassName = L"firstwindow";
HWND hwnd = NULL;
HRESULT hr;
const int Width = 800;
const int Height = 600;
bool InitializeDirect3d11App(HINSTANCE hInstance)
{
//Describe our Buffer
DXGI_MODE_DESC bufferDesc;
ZeroMemory(&bufferDesc, sizeof(DXGI_MODE_DESC));
bufferDesc.Width = Width;
bufferDesc.Height = Height;
bufferDesc.RefreshRate.Numerator = 60;
bufferDesc.RefreshRate.Denominator = 1;
bufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
bufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED;
bufferDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED;
//Describe our SwapChain
DXGI_SWAP_CHAIN_DESC swapChainDesc;
ZeroMemory(&swapChainDesc, sizeof(DXGI_SWAP_CHAIN_DESC));
swapChainDesc.BufferDesc = bufferDesc;
swapChainDesc.SampleDesc.Count = 1;
swapChainDesc.SampleDesc.Quality = 0;
swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
swapChainDesc.BufferCount = 1;
swapChainDesc.OutputWindow = hwnd;
swapChainDesc.Windowed = TRUE;
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
//Create our SwapChain
hr = D3D11CreateDeviceAndSwapChain(NULL, D3D_DRIVER_TYPE_HARDWARE, NULL, NULL, NULL, NULL,
D3D11_SDK_VERSION, &swapChainDesc, &SwapChain, &d3d11Device, NULL, &d3d11DevCon);
//Create our BackBuffer
ID3D11Texture2D* BackBuffer;
hr = SwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (void**)&BackBuffer);
//Create our Render Target
hr = d3d11Device->CreateRenderTargetView(BackBuffer, NULL, &renderTargetView);
BackBuffer->Release();
////////////////////////////////////////////////////////////////////////EXPERIMENT AREA//////////////////////////////////////////////////////////////////////////////////////
ZeroMemory(&textureDesc, sizeof(textureDesc));
// Setup the texture description.
// We will have our map be a square
// We will need to have this texture bound as a render target AND a shader resource
textureDesc.Width = Width/ 3.9729999999999999999999999999999;
textureDesc.Height = Height/3.9729999999999999999999999999999;
textureDesc.MipLevels = 1;
textureDesc.ArraySize = 1;
textureDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
textureDesc.SampleDesc.Count = 1;
textureDesc.SampleDesc.Quality = 0;
textureDesc.Usage = D3D11_USAGE_DEFAULT;
textureDesc.BindFlags = D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE;
textureDesc.CPUAccessFlags = 0;
textureDesc.MiscFlags = 0;
d3d11Device->CreateTexture2D(&textureDesc, NULL, &renderTargetTextureMap);
// Setup the description of the render target view.
renderTargetViewDesc.Format = textureDesc.Format;
renderTargetViewDesc.ViewDimension = D3D11_RTV_DIMENSION_TEXTURE2D;
renderTargetViewDesc.Texture2D.MipSlice = 0;
// Create the render target view.
d3d11Device->CreateRenderTargetView(renderTargetTextureMap, &renderTargetViewDesc, &renderTargetViewMap);
/////////////////////// Map's Shader Resource View
// Setup the description of the shader resource view.
shaderResourceViewDesc.Format = textureDesc.Format;
shaderResourceViewDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
shaderResourceViewDesc.Texture2D.MostDetailedMip = 0;
shaderResourceViewDesc.Texture2D.MipLevels = 1;
// Create the shader resource view.
d3d11Device->CreateShaderResourceView(renderTargetTextureMap, &shaderResourceViewDesc, &shaderResourceViewMap);
d3d11DevCon->OMSetRenderTargets(1, &renderTargetViewMap, NULL);
d3d11DevCon->PSSetShaderResources(0, 1, &shaderResourceViewMap);
return true;
}
void CleanUp()
{
//Release the COM Objects we created
SwapChain->Release();
d3d11Device->Release();
d3d11DevCon->Release();
renderTargetView->Release();
triangleVertBuffer->Release();
VS->Release();
PS->Release();
VS_Buffer->Release();
PS_Buffer->Release();
vertLayout->Release();
}
bool InitScene()
{
//Compile Shaders from shader file
hr = D3DX11CompileFromFile(L"Effect.fx", 0, 0, "VS", "vs_5_0", 0, 0, 0, &VS_Buffer, 0, 0);
hr = D3DX11CompileFromFile(L"Effect.fx", 0, 0, "PS", "ps_5_0", 0, 0, 0, &PS_Buffer, 0, 0);
//Create the Shader Objects
hr = d3d11Device->CreateVertexShader(VS_Buffer->GetBufferPointer(), VS_Buffer->GetBufferSize(), NULL, &VS);
hr = d3d11Device->CreatePixelShader(PS_Buffer->GetBufferPointer(), PS_Buffer->GetBufferSize(), NULL, &PS);
//Set Vertex and Pixel Shaders
d3d11DevCon->VSSetShader(VS, 0, 0);
d3d11DevCon->PSSetShader(PS, 0, 0);
//Create the Input Layout
hr = d3d11Device->CreateInputLayout(layout, numElements, VS_Buffer->GetBufferPointer(),
VS_Buffer->GetBufferSize(), &vertLayout);
//Set the Input Layout
d3d11DevCon->IASetInputLayout(vertLayout);
//Set Primitive Topology
d3d11DevCon->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
//Create the Viewport
D3D11_VIEWPORT viewport;
ZeroMemory(&viewport, sizeof(D3D11_VIEWPORT));
viewport.TopLeftX = 0;
viewport.TopLeftY = 0;
viewport.Width = 800;
viewport.Height = 600;
//Set the Viewport
d3d11DevCon->RSSetViewports(1, &viewport);
////////////////***********************First Texture Vertex Buffer *******************************/////////////////////////////
//Create the vertex buffer
Vertex v[] =
{
Vertex(-0.5f, -0.5f, 0.0f, 1.0f,0.0f,0.0f, 1.0f),
Vertex(-0.5f, 0.5f, 0.0f, 1.0f,0.0f,0.0f, 1.0f),
Vertex(0.5f, 0.5f, 0.0f, 1.0f, 0.0f,0.0f, 1.0f),
Vertex(0.5f, -0.5f, 0.0f, 1.0f,0.0f, 0.0f, 1.0f),
};
DWORD indices[] = {
// Front Face
0, 1, 3,
1, 2, 3,
};
D3D11_BUFFER_DESC indexBufferDesc;
ZeroMemory(&indexBufferDesc, sizeof(indexBufferDesc));
indexBufferDesc.Usage = D3D11_USAGE_DEFAULT;
indexBufferDesc.ByteWidth = sizeof(DWORD) * 2 * 3;
indexBufferDesc.BindFlags = D3D11_BIND_INDEX_BUFFER;
indexBufferDesc.CPUAccessFlags = 0;
indexBufferDesc.MiscFlags = 0;
D3D11_SUBRESOURCE_DATA iinitData;
iinitData.pSysMem = indices;
d3d11Device->CreateBuffer(&indexBufferDesc, &iinitData, &d2dIndexBuffer);
D3D11_BUFFER_DESC vertexBufferDesc;
ZeroMemory(&vertexBufferDesc, sizeof(vertexBufferDesc));
vertexBufferDesc.Usage = D3D11_USAGE_DEFAULT;
vertexBufferDesc.ByteWidth = sizeof(Vertex) * 4;
vertexBufferDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
vertexBufferDesc.CPUAccessFlags = 0;
vertexBufferDesc.MiscFlags = 0;
D3D11_SUBRESOURCE_DATA vertexBufferData;
ZeroMemory(&vertexBufferData, sizeof(vertexBufferData));
vertexBufferData.pSysMem = v;
hr = d3d11Device->CreateBuffer(&vertexBufferDesc, &vertexBufferData, &triangleVertBuffer);
////////////////////////////////////////////////////// Second Vertex.
Vertex v2[] = {
// positions // colors // texture coords
Vertex(1.0f, 1.0f, 0.0f,0.0f,1.0f,0.0f,1.0f), // top right
Vertex(1.0f,0.0f, 0.0f,0.0f,1.0f,0.0f,1.0f), // bottom right
Vertex(0.0f,0.0f, 0.0f,0.0f,1.0f,0.0f,1.0f), // bottom left
Vertex(0.0f, 1.0, 0.0f,0.0f, 1.0f,0.0f,1.0f) // top left
};
DWORD indices2[] = {
// Front Face
0, 1, 2,
0, 2, 3,
};
D3D11_BUFFER_DESC indexBufferDesc2;
ZeroMemory(&indexBufferDesc2, sizeof(indexBufferDesc2));
indexBufferDesc2.Usage = D3D11_USAGE_DEFAULT;
indexBufferDesc2.ByteWidth = sizeof(DWORD) * 2 * 3;
indexBufferDesc2.BindFlags = D3D11_BIND_INDEX_BUFFER;
indexBufferDesc2.CPUAccessFlags = 0;
indexBufferDesc2.MiscFlags = 0;
D3D11_SUBRESOURCE_DATA iinitData2;
iinitData2.pSysMem = indices2;
d3d11Device->CreateBuffer(&indexBufferDesc2, &iinitData2, &d2dIndexBuffer2);
D3D11_BUFFER_DESC vertexBufferDesc2;
ZeroMemory(&vertexBufferDesc2, sizeof(vertexBufferDesc2));
vertexBufferDesc2.Usage = D3D11_USAGE_DEFAULT;
vertexBufferDesc2.ByteWidth = sizeof(Vertex) * 4;
vertexBufferDesc2.BindFlags = D3D11_BIND_VERTEX_BUFFER;
vertexBufferDesc2.CPUAccessFlags = 0;
vertexBufferDesc2.MiscFlags = 0;
D3D11_SUBRESOURCE_DATA vertexBufferData2;
ZeroMemory(&vertexBufferData2, sizeof(vertexBufferData2));
vertexBufferData2.pSysMem = v2;
hr = d3d11Device->CreateBuffer(&vertexBufferDesc2, &vertexBufferData2, &triangleVertBuffer2);
UINT stride = sizeof(Vertex);
UINT offset = 0;
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
return true;
}
Shader File:
struct VS_OUTPUT
{
float4 Pos : SV_POSITION;
float4 Color : COLOR;
};
Texture2D ObjTexture;
SamplerState ObjSamplerState;
VS_OUTPUT VS(float4 inPos : POSITION, float4 inColor : COLOR)
{
VS_OUTPUT output;
output.Pos = inPos;
output.Color = inColor;
return output;
}
float4 PS(VS_OUTPUT input) : SV_TARGET
{
float2 temp;
temp = input.Pos;
float4 diffuse = ObjTexture.Sample(ObjSamplerState,0.5*temp);
return input.Color + diffuse ;
}
return DefWindowProc(hwnd,
msg,
wParam,
lParam);
}
Edit 3:
My vertex Structure:
struct Vertex //Overloaded Vertex Structure
{
Vertex() {}
Vertex(float x, float y, float z,
float cr, float cg, float cb, float ca)
: pos(x, y, z), color(cr, cg, cb, ca) {}
XMFLOAT3 pos;
XMFLOAT4 color;
};
Input description:
D3D11_INPUT_ELEMENT_DESC layout[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, 12, D3D11_INPUT_PER_VERTEX_DATA, 0 },
};
I think so issue is when i pass my texture and read it in diffuse in pixel shader, then mapping of my texture on back buffer is not same and hence i am only finding red color from 2nd scan line and hence resultant zero is produced..?
Edit 3:
My initialization code:
struct Vertex //Overloaded Vertex Structure
{
Vertex() {}
Vertex(float x, float y, float z,
float cr, float cg, float cb, float ca)
: pos(x, y, z), color(cr, cg, cb, ca) {}
XMFLOAT3 pos;
XMFLOAT4 color;
};
ID3D11Texture2D* renderTargetTextureMap;
ID3D11RenderTargetView* renderTargetViewMap;
ID3D11ShaderResourceView* shaderResourceViewMap;
ID3D11SamplerState* CubesTexSamplerState;
ID3D11Buffer *d2dIndexBuffer;
ID3D11Buffer *d2dIndexBuffer2;
D3D11_TEXTURE2D_DESC textureDesc;
D3D11_RENDER_TARGET_VIEW_DESC renderTargetViewDesc;
D3D11_SHADER_RESOURCE_VIEW_DESC shaderResourceViewDesc;
D3D11_INPUT_ELEMENT_DESC layout[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, 12, D3D11_INPUT_PER_VERTEX_DATA, 0 },
};
UINT numElements = ARRAYSIZE(layout);
bool InitializeDirect3d11App(HINSTANCE hInstance)
{
//Describe our Buffer
DXGI_MODE_DESC bufferDesc;
ZeroMemory(&bufferDesc, sizeof(DXGI_MODE_DESC));
bufferDesc.Width = Width;
bufferDesc.Height = Height;
bufferDesc.RefreshRate.Numerator = 60;
bufferDesc.RefreshRate.Denominator = 1;
bufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
bufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED;
bufferDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED;
//Describe our SwapChain
DXGI_SWAP_CHAIN_DESC swapChainDesc;
ZeroMemory(&swapChainDesc, sizeof(DXGI_SWAP_CHAIN_DESC));
swapChainDesc.BufferDesc = bufferDesc;
swapChainDesc.SampleDesc.Count = 1;
swapChainDesc.SampleDesc.Quality = 0;
swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
swapChainDesc.BufferCount = 1;
swapChainDesc.OutputWindow = hwnd;
swapChainDesc.Windowed = TRUE;
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
//Create our SwapChain
hr = D3D11CreateDeviceAndSwapChain(NULL, D3D_DRIVER_TYPE_HARDWARE, NULL, NULL, NULL, NULL,
D3D11_SDK_VERSION, &swapChainDesc, &SwapChain, &d3d11Device, NULL, &d3d11DevCon);
//Create our BackBuffer
ID3D11Texture2D* BackBuffer;
hr = SwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (void**)&BackBuffer);
//Create our Render Target
hr = d3d11Device->CreateRenderTargetView(BackBuffer, NULL, &renderTargetView);
BackBuffer->Release();
////////////////////////////////////////////////////////////////////////EXPERIMENT AREA//////////////////////////////////////////////////////////////////////////////////////
ZeroMemory(&textureDesc, sizeof(textureDesc));
// Setup the texture description.
// We will have our map be a square
// We will need to have this texture bound as a render target AND a shader resource
textureDesc.Width = Width/2;
textureDesc.Height = Height/2;
textureDesc.MipLevels = 1;
textureDesc.ArraySize = 1;
textureDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
textureDesc.SampleDesc.Count = 1;
textureDesc.SampleDesc.Quality = 0;
textureDesc.Usage = D3D11_USAGE_DEFAULT;
textureDesc.BindFlags = D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE;
textureDesc.CPUAccessFlags = 0;
textureDesc.MiscFlags = 0;
d3d11Device->CreateTexture2D(&textureDesc, NULL, &renderTargetTextureMap);
// Setup the description of the render target view.
renderTargetViewDesc.Format = textureDesc.Format;
renderTargetViewDesc.ViewDimension = D3D11_RTV_DIMENSION_TEXTURE2D;
renderTargetViewDesc.Texture2D.MipSlice = 0;
// Create the render target view.
d3d11Device->CreateRenderTargetView(renderTargetTextureMap, &renderTargetViewDesc, &renderTargetView);
/////////////////////// Map's Shader Resource View
// Setup the description of the shader resource view.
shaderResourceViewDesc.Format = textureDesc.Format;
shaderResourceViewDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
shaderResourceViewDesc.Texture2D.MostDetailedMip = 0;
shaderResourceViewDesc.Texture2D.MipLevels = 1;
// Create the shader resource view.
d3d11Device->CreateShaderResourceView(renderTargetTextureMap, &shaderResourceViewDesc, &shaderResourceViewMap);
//d3d11DevCon->OMSetRenderTargets(1, &renderTargetViewMap, NULL);
//d3d11DevCon->PSSetShaderResources(0, 1, &shaderResourceViewMap);
return true;
}
void CleanUp()
{
//Release the COM Objects we created
SwapChain->Release();
d3d11Device->Release();
d3d11DevCon->Release();
renderTargetView->Release();
triangleVertBuffer->Release();
VS->Release();
PS->Release();
VS_Buffer->Release();
PS_Buffer->Release();
vertLayout->Release();
}
bool InitScene()
{
//Compile Shaders from shader file
hr = D3DX11CompileFromFile(L"Effect.fx", 0, 0, "VS", "vs_5_0", 0, 0, 0, &VS_Buffer, 0, 0);
hr = D3DX11CompileFromFile(L"Effect.fx", 0, 0, "PS", "ps_5_0", 0, 0, 0, &PS_Buffer, 0, 0);
//Create the Shader Objects
hr = d3d11Device->CreateVertexShader(VS_Buffer->GetBufferPointer(), VS_Buffer->GetBufferSize(), NULL, &VS);
hr = d3d11Device->CreatePixelShader(PS_Buffer->GetBufferPointer(), PS_Buffer->GetBufferSize(), NULL, &PS);
//Set Vertex and Pixel Shaders
d3d11DevCon->VSSetShader(VS, 0, 0);
d3d11DevCon->PSSetShader(PS, 0, 0);
//Create the Input Layout
hr = d3d11Device->CreateInputLayout(layout, numElements, VS_Buffer->GetBufferPointer(),
VS_Buffer->GetBufferSize(), &vertLayout);
//Set the Input Layout
d3d11DevCon->IASetInputLayout(vertLayout);
//Set Primitive Topology
d3d11DevCon->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
//Create the Viewport
D3D11_VIEWPORT viewport;
ZeroMemory(&viewport, sizeof(D3D11_VIEWPORT));
viewport.TopLeftX = 0;
viewport.TopLeftY = 0;
viewport.Width = 800;
viewport.Height = 600;
//Set the Viewport
d3d11DevCon->RSSetViewports(1, &viewport);
////////////////***********************First Texture Vertex Buffer *******************************/////////////////////////////
//Create the vertex buffer
Vertex v[] =
{
Vertex(-0.35f, -0.35f, 0.0f, 1.0f,0.0f,0.0f, 1.0f),
Vertex(-0.35f, 0.35f, 0.0f, 1.0f,0.0f,0.0f, 1.0f),
Vertex(0.35f, 0.35f, 0.0f, 1.0f, 0.0f,0.0f, 1.0f),
Vertex(0.35f, -0.35f, 0.0f, 1.0f,0.0f, 0.0f, 1.0f),
};
DWORD indices[] = {
// Front Face
0, 1, 3,
1, 2, 3,
};
D3D11_BUFFER_DESC indexBufferDesc;
ZeroMemory(&indexBufferDesc, sizeof(indexBufferDesc));
indexBufferDesc.Usage = D3D11_USAGE_DEFAULT;
indexBufferDesc.ByteWidth = sizeof(DWORD) * 2 * 3;
indexBufferDesc.BindFlags = D3D11_BIND_INDEX_BUFFER;
indexBufferDesc.CPUAccessFlags = 0;
indexBufferDesc.MiscFlags = 0;
D3D11_SUBRESOURCE_DATA iinitData;
iinitData.pSysMem = indices;
d3d11Device->CreateBuffer(&indexBufferDesc, &iinitData, &d2dIndexBuffer);
D3D11_BUFFER_DESC vertexBufferDesc;
ZeroMemory(&vertexBufferDesc, sizeof(vertexBufferDesc));
vertexBufferDesc.Usage = D3D11_USAGE_DEFAULT;
vertexBufferDesc.ByteWidth = sizeof(Vertex) * 4;
vertexBufferDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
vertexBufferDesc.CPUAccessFlags = 0;
vertexBufferDesc.MiscFlags = 0;
D3D11_SUBRESOURCE_DATA vertexBufferData;
ZeroMemory(&vertexBufferData, sizeof(vertexBufferData));
vertexBufferData.pSysMem = v;
hr = d3d11Device->CreateBuffer(&vertexBufferDesc, &vertexBufferData, &triangleVertBuffer);
////////////////////////////////////////////////////// Second Vertex.
Vertex v2[] = {
// positions // colors // texture coords
Vertex(1.0f, 1.0f, 0.0f,0.0f,1.0f,0.0f,1.0f), // top right
Vertex(1.0f,0.0f, 0.0f,0.0f,1.0f,0.0f,1.0f), // bottom right
Vertex(0.0f,0.0f, 0.0f,0.0f,1.0f,0.0f,1.0f), // bottom left
Vertex(0.0f, 1.0, 0.0f,0.0f, 1.0f,0.0f,1.0f) // top left
};
DWORD indices2[] = {
// Front Face
0, 1, 2,
0, 2, 3,
};
D3D11_BUFFER_DESC indexBufferDesc2;
ZeroMemory(&indexBufferDesc2, sizeof(indexBufferDesc2));
indexBufferDesc2.Usage = D3D11_USAGE_DEFAULT;
indexBufferDesc2.ByteWidth = sizeof(DWORD) * 2 * 3;
indexBufferDesc2.BindFlags = D3D11_BIND_INDEX_BUFFER;
indexBufferDesc2.CPUAccessFlags = 0;
indexBufferDesc2.MiscFlags = 0;
D3D11_SUBRESOURCE_DATA iinitData2;
iinitData2.pSysMem = indices2;
d3d11Device->CreateBuffer(&indexBufferDesc2, &iinitData2, &d2dIndexBuffer2);
D3D11_BUFFER_DESC vertexBufferDesc2;
ZeroMemory(&vertexBufferDesc2, sizeof(vertexBufferDesc2));
vertexBufferDesc2.Usage = D3D11_USAGE_DEFAULT;
vertexBufferDesc2.ByteWidth = sizeof(Vertex) * 4;
vertexBufferDesc2.BindFlags = D3D11_BIND_VERTEX_BUFFER;
vertexBufferDesc2.CPUAccessFlags = 0;
vertexBufferDesc2.MiscFlags = 0;
D3D11_SUBRESOURCE_DATA vertexBufferData2;
ZeroMemory(&vertexBufferData2, sizeof(vertexBufferData2));
vertexBufferData2.pSysMem = v2;
hr = d3d11Device->CreateBuffer(&vertexBufferDesc2, &vertexBufferData2, &triangleVertBuffer2);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
return true;
}
Edit 4:
Added draw scene code:
void DrawScene()
{
//Set the vertex buffer
UINT stride = sizeof(Vertex);
UINT offset = 0;
///////////////////////////////////////////////////////////Buffer 2//////////////////////////////////////////////////////////////////
d3d11DevCon->IASetIndexBuffer(d2dIndexBuffer, DXGI_FORMAT_R32_UINT, 0);
d3d11DevCon->IASetVertexBuffers(0, 1, &triangleVertBuffer, &stride, &offset);
////Draw the triangle
d3d11DevCon->DrawIndexed(6, 0, 0);
d3d11DevCon->OMSetRenderTargets(1, &renderTargetView, NULL);
////////////////////////////////////////////
d3d11DevCon->PSSetShaderResources(0, 1, &shaderResourceViewMap);
d3d11DevCon->IASetIndexBuffer(d2dIndexBuffer2, DXGI_FORMAT_R32_UINT, 0);
d3d11DevCon->IASetVertexBuffers(0, 1, &triangleVertBuffer2, &stride, &offset);
////Draw the triangle
d3d11DevCon->DrawIndexed(6, 0, 0);
//Present the backbuffer to the screen
SwapChain->Present(0, 0);
}
In order to calculate correct texture coordinates from the vertex Position, you need to:
1.Create the render target texture with Width and Height (not the halves):
textureDesc.Width = Width; // /2; // Do not use half width
textureDesc.Height = Height; // /2; // Do not use half height
2.Divide the position to a float2(1 / Width, 1 / Height) in your pixel shader, like this:
float2 tex = input.Pos * float2(1.0f / 800.0f, 1.0f / 600.0f);
float4 diffuse = ObjTexture.Sample(ObjSamplerState, tex);
return input.Color + diffuse;

KineticJS simple animation not working on mobile devices

I was wondering if someone could help me find the solution to this.
I've made a very simple animation using KineticJS.
All works perfect on desktop, unfortunately not on mobile devices (iPhone, iPad, Android).
Result is a slowish performance but most importantly distorted shapes.
I suspect it has something to do with resolution or viewport but am not sure.
Preview is on www.bartvanhelsdingen.com
Any suggestions are highly appreciated.
Below is the code:
var shapes = {
sizes: [30, 40, 50, 55, 60, 80],
gradients: [
[0, '#fdfaee', 1, '#524f43'],
[0, '#a39175', 1, '#dbae5e'],
[0, '#b4c188', 1, '#f3de7c'],
[0, '#eaf2ef', 1, '#587c71'],
[0, '#a39175', 1, '#dbae5e'],
[0, '#61845c', 1, '#b4b092']
],
},
dims = {
width: 300,
height: 500
},
stage = new Kinetic.Stage({
container: 'animation',
width: dims.width,
height: dims.height,
x: 0,
y: 0,
draggable: false
});
function getRandomColor() {
return colors[getRandomFromInterval(0, colors.length - 1)];
}
function getRandomGradient() {
return gradients[getRandomFromInterval(0, gradients.length - 1)];
}
function getRandomFromInterval(from, to) {
return Math.floor(Math.random() * (to - from + 1) + from);
}
function getRandomSpeed() {
var speed = getRandomFromInterval(1, 1);
return getRandomFromInterval(0, 1) ? speed : speed * -1;
}
function createGroup(x, y, size, strokeWidth) {
return new Kinetic.Group({
x: x,
y: y,
width: size,
height: size,
opacity: 0,
draggable: false,
clipFunc: function (canvas) {
var context = canvas.getContext();
context.beginPath();
context.moveTo(0, 0);
context.lineTo(0, size);
context.lineTo(size, size);
context.lineTo(size, 0);
context.rect(strokeWidth, strokeWidth, size - strokeWidth * 2, size - strokeWidth * 2);
}
});
}
function createShape(size, gradient, strokeWidth, cornerRadius) {
return new Kinetic.Rect({
x: 0,
y: 0,
width: size,
height: size,
fillLinearGradientStartPoint: [size, 0],
fillLinearGradientEndPoint: [size, size],
fillLinearGradientColorStops: gradient,
opacity: 1,
lineJoin: 'bevel',
strokeWidth: 0,
cornerRadius: cornerRadius
});
}
var layer = new Kinetic.Layer(),
animAttribs = [];
for (var n = 0; n < 6; n++) {
var size = shapes.sizes[n],
strokeWidth = Math.ceil(size * 0.12),
cornerRadius = Math.ceil(size * 0.04),
gradient = shapes.gradients[n],
x = getRandomFromInterval(size, dims.width) - size,
y = getRandomFromInterval(size, dims.height) - size;
var group = createGroup(x, y, size, strokeWidth);
var shape = createShape(size, gradient, strokeWidth, cornerRadius);
animAttribs.push({
nextChange: getRandomFromInterval(1, 3) * 1000,
startTime: 1000,
duration: 0,
x: getRandomSpeed(),
y: getRandomSpeed()
});
group.add(shape);
layer.add(group);
}
stage.add(layer);
anim = new Kinetic.Animation(function (frame) {
var time = frame.time,
timeDiff = frame.timeDiff,
frameRate = frame.frameRate;
for (var n = 0; n < layer.getChildren().length; n++) {
var shape = layer.getChildren()[n],
opacity = shape.getOpacity() + 0.01 > 1 ? 1 : shape.getOpacity() + 0.01,
attribs = animAttribs[n],
x, y;
if (attribs.duration >= attribs.nextChange) {
attribs.x = getRandomSpeed();
attribs.y = getRandomSpeed();
attribs.nextChange = getRandomFromInterval(3, 5) * 1000;
attribs.duration = 0;
}
if (time >= attribs.startTime) {
if (shape.getX() + attribs.x + shape.getWidth() >= stage.getWidth() || shape.getX() + attribs.x - shape.getWidth() / 2 <= 0) {
attribs.x *= -1;
}
if (shape.getY() + attribs.y + shape.getHeight() >= stage.getHeight() || shape.getY() + attribs.y - shape.getHeight() / 2 <= 0) {
attribs.y *= -1;
}
x = shape.getX() + attribs.x;
y = shape.getY() + attribs.y;
attribs.duration += timeDiff;
shape.setOpacity(opacity);
shape.setX(x);
shape.setY(y);
}
}
}, layer);
anim.start();
the problem you are facing is, that clipFunc isn't currently working on devices with pixelratio != 1.
This problem came up in this post as well. Eric Rowell, the creator of KineticJS added this issue to his release scedule for late September.
So there is nothing wrong with your animations, they're working as expected, but you can't see them because of the distorted clipping region
To resolve this issue "unofficially" you can simply replace the last line of the _clip function in your kinetic.js with the following: context.setTransform(this.pixelRatio, 0, 0, this.pixelRatio, 0, 0); (credits for that go to Mark Smits)

XNA spritebatch and primative using different axis with same effect

I am developing a side scroller game using monogame 3.0 (XNA-C#). I am using a TriangleStrip to draw the ground and a spritebatch to draw a fence. I want the fence to be on top of the ground but it seems to be using a different axis (negative instead of positive). In order to align things up I need to flip the fence and use a negative x and y. Both the sprite and the primitive are using the same view matrix and project.
Why is the spritebatch need a negative axis while the primitive is using a positive one when they are using the same matrixes?
protected override void Initialize()
{
viewMatrix = Matrix.CreateLookAt(new Vector3(0, 0, 1), Vector3.Zero, new Vector3(0,1, 0));
projectionMatrix = Matrix.CreateOrthographicOffCenter(0,GraphicsDevice.Viewport.Width,
0, GraphicsDevice.Viewport.Height, 0f, 200f) *Matrix.CreateScale(new Vector3(.5f, .5f, 1f));
GraphicsDevice.RasterizerState.CullMode = CullMode.None;
_groundBasicEffect = new BasicEffect(GraphicsDevice);
_groundBasicEffect.View = viewMatrix;
_groundBasicEffect.Projection = projectionMatrix;
_groundBasicEffect.VertexColorEnabled = true;
_groundBasicEffect.World = world;
_fenceBasicEffect = new BasicEffect(GraphicsDevice);
_fenceBasicEffect.View = Matrix.CreateLookAt(new Vector3(0, 0, 1), Vector3.Zero, new Vector3(0,1, 0));
_fenceBasicEffect.Projection = projectionMatrix;
_fenceBasicEffect.TextureEnabled = true;
_fenceBasicEffect.World = world;
base.Initialize();
}
protected override void LoadContent()
{
_spriteBatch = new SpriteBatch(GraphicsDevice);
fenceTexture = this.Content.Load<Texture2D>(#"Fence1");
vertexData = new VertexPositionColor[8];
vertexData[0] = new VertexPositionColor(new Vector3(0, 0, 0), Color.Black);
vertexData[1] = new VertexPositionColor(new Vector3(0, 400, 0), Color.Black);
vertexData[2] = new VertexPositionColor(new Vector3(200, 0, 0), Color.Black);
vertexData[3] = new VertexPositionColor(new Vector3(200, 400, 0), Color.Black);
vertexData[4] = new VertexPositionColor(new Vector3(300, 0, 0), Color.Black);
vertexData[5] = new VertexPositionColor(new Vector3(300, 430, 0), Color.Black);
vertexData[6] = new VertexPositionColor(new Vector3(1200, 0, 0), Color.Black);
vertexData[7] = new VertexPositionColor(new Vector3(1200, 430, 0), Color.Black);
vertexBuffer = new VertexBuffer(GraphicsDevice, typeof(VertexPositionColor), vertexData.Length, BufferUsage.None);
vertexBuffer.SetData(vertexData);
}
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.White);
GraphicsDevice.SetVertexBuffer(vertexBuffer);
_groundBasicEffect.CurrentTechnique.Passes[0].Apply();
GraphicsDevice.DrawUserPrimitives<VertexPositionColor>(PrimitiveType.TriangleStrip, vertexData, 0, vertexData.Length -2);
_spriteBatch.Begin(0, null, null, null, null, _fenceBasicEffect);
_spriteBatch.Draw(fenceTexture, Vector2.Zero, new Rectangle(0, 0, 1130, 221), Color.White, 0, new Vector2(0, 200), 1, SpriteEffects.None, 0);
_spriteBatch.End();
base.Draw(gameTime);
}
How it looks...
How I expect it to look...
In order to get this look I need to change the Draw of the fence to this...
_spriteBatch.Draw(fenceTexture, Vector2.Zero, new Rectangle(0, 0, 1130, 221), Color.White, 0, new Vector2(0, -400), 1, SpriteEffects.FlipVertically, 0);

DirectX 10 Primitive is not displayed

I am trying to write my first DirectX 10 program that displays a triangle. Everything compiles fine, and the render function is called, since the background changes to black. However, the triangle I'm trying to draw with a triangle strip primitive is not displayed at all.
The Initialization function:
bool InitDirect3D(HWND hWnd, int width, int height)
{
//****** D3DDevice and SwapChain *****//
DXGI_SWAP_CHAIN_DESC swapChainDesc;
ZeroMemory(&swapChainDesc, sizeof(swapChainDesc));
swapChainDesc.BufferCount = 1;
swapChainDesc.BufferDesc.Width = width;
swapChainDesc.BufferDesc.Height = height;
swapChainDesc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
swapChainDesc.BufferDesc.RefreshRate.Numerator = 60;
swapChainDesc.BufferDesc.RefreshRate.Denominator = 1;
swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
swapChainDesc.OutputWindow = hWnd;
swapChainDesc.SampleDesc.Count = 1;
swapChainDesc.SampleDesc.Quality = 0;
swapChainDesc.Windowed = TRUE;
if (FAILED(D3D10CreateDeviceAndSwapChain( NULL,
D3D10_DRIVER_TYPE_HARDWARE,
NULL,
0,
D3D10_SDK_VERSION,
&swapChainDesc,
&pSwapChain,
&pD3DDevice)))
return fatalError(TEXT("Hardware does not support DirectX 10!"));
//***** Shader *****//
if (FAILED(D3DX10CreateEffectFromFile( TEXT("basicEffect.fx"),
NULL, NULL,
"fx_4_0",
D3D10_SHADER_ENABLE_STRICTNESS,
0,
pD3DDevice,
NULL,
NULL,
&pBasicEffect,
NULL,
NULL)))
return fatalError(TEXT("Could not load effect file!"));
pBasicTechnique = pBasicEffect->GetTechniqueByName("Render");
pViewMatrixEffectVariable = pBasicEffect->GetVariableByName( "View" )->AsMatrix();
pProjectionMatrixEffectVariable = pBasicEffect->GetVariableByName( "Projection" )->AsMatrix();
pWorldMatrixEffectVariable = pBasicEffect->GetVariableByName( "World" )->AsMatrix();
//***** Input Assembly Stage *****//
D3D10_INPUT_ELEMENT_DESC layout[] =
{
{"POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D10_INPUT_PER_VERTEX_DATA, 0},
{"COLOR", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, 12, D3D10_INPUT_PER_VERTEX_DATA, 0}
};
UINT numElements = 2;
D3D10_PASS_DESC PassDesc;
pBasicTechnique->GetPassByIndex(0)->GetDesc(&PassDesc);
if (FAILED( pD3DDevice->CreateInputLayout( layout,
numElements,
PassDesc.pIAInputSignature,
PassDesc.IAInputSignatureSize,
&pVertexLayout)))
return fatalError(TEXT("Could not create Input Layout."));
pD3DDevice->IASetInputLayout( pVertexLayout );
//***** Vertex buffer *****//
UINT numVertices = 100;
D3D10_BUFFER_DESC bd;
bd.Usage = D3D10_USAGE_DYNAMIC;
bd.ByteWidth = sizeof(vertex) * numVertices;
bd.BindFlags = D3D10_BIND_VERTEX_BUFFER;
bd.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
bd.MiscFlags = 0;
if (FAILED(pD3DDevice->CreateBuffer(&bd, NULL, &pVertexBuffer)))
return fatalError(TEXT("Could not create vertex buffer!"));;
UINT stride = sizeof(vertex);
UINT offset = 0;
pD3DDevice->IASetVertexBuffers( 0, 1, &pVertexBuffer, &stride, &offset );
//***** Rasterizer *****//
// Set the viewport
viewPort.Width = width;
viewPort.Height = height;
viewPort.MinDepth = 0.0f;
viewPort.MaxDepth = 1.0f;
viewPort.TopLeftX = 0;
viewPort.TopLeftY = 0;
pD3DDevice->RSSetViewports(1, &viewPort);
D3D10_RASTERIZER_DESC rasterizerState;
rasterizerState.CullMode = D3D10_CULL_NONE;
rasterizerState.FillMode = D3D10_FILL_SOLID;
rasterizerState.FrontCounterClockwise = true;
rasterizerState.DepthBias = false;
rasterizerState.DepthBiasClamp = 0;
rasterizerState.SlopeScaledDepthBias = 0;
rasterizerState.DepthClipEnable = true;
rasterizerState.ScissorEnable = false;
rasterizerState.MultisampleEnable = false;
rasterizerState.AntialiasedLineEnable = true;
ID3D10RasterizerState* pRS;
pD3DDevice->CreateRasterizerState(&rasterizerState, &pRS);
pD3DDevice->RSSetState(pRS);
//***** Output Merger *****//
// Get the back buffer from the swapchain
ID3D10Texture2D *pBackBuffer;
if (FAILED(pSwapChain->GetBuffer(0, __uuidof(ID3D10Texture2D), (LPVOID*)&pBackBuffer)))
return fatalError(TEXT("Could not get back buffer."));
// create the render target view
if (FAILED(pD3DDevice->CreateRenderTargetView(pBackBuffer, NULL, &pRenderTargetView)))
return fatalError(TEXT("Could not create the render target view."));
// release the back buffer
pBackBuffer->Release();
// set the render target
pD3DDevice->OMSetRenderTargets(1, &pRenderTargetView, NULL);
return true;
}
The render function:
void Render()
{
if (pD3DDevice != NULL)
{
pD3DDevice->ClearRenderTargetView(pRenderTargetView, D3DXCOLOR(0.0f, 0.0f, 0.0f, 0.0f));
//create world matrix
static float r;
D3DXMATRIX w;
D3DXMatrixIdentity(&w);
D3DXMatrixRotationY(&w, r);
r += 0.001f;
//set effect matrices
pWorldMatrixEffectVariable->SetMatrix(w);
pViewMatrixEffectVariable->SetMatrix(viewMatrix);
pProjectionMatrixEffectVariable->SetMatrix(projectionMatrix);
//fill vertex buffer with vertices
UINT numVertices = 3;
vertex* v = NULL;
//lock vertex buffer for CPU use
pVertexBuffer->Map(D3D10_MAP_WRITE_DISCARD, 0, (void**) &v );
v[0] = vertex( D3DXVECTOR3(-1,-1,0), D3DXVECTOR4(1,0,0,1) );
v[1] = vertex( D3DXVECTOR3(0,1,0), D3DXVECTOR4(0,1,0,1) );
v[2] = vertex( D3DXVECTOR3(1,-1,0), D3DXVECTOR4(0,0,1,1) );
pVertexBuffer->Unmap();
// Set primitive topology
pD3DDevice->IASetPrimitiveTopology( D3D10_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP );
//get technique desc
D3D10_TECHNIQUE_DESC techDesc;
pBasicTechnique->GetDesc(&techDesc);
for(UINT p = 0; p < techDesc.Passes; ++p)
{
//apply technique
pBasicTechnique->GetPassByIndex(p)->Apply(0);
//draw
pD3DDevice->Draw(numVertices, 0);
}
pSwapChain->Present(0,0);
}
}
I'm not sure try to set:
pD3DDevice->IASetVertexBuffers( 0, 1, &pVertexBuffer, &stride, &offset );
after you unmap the the buffer. To get something like this:
pVertexBuffer->Unmap();
pD3DDevice->IASetVertexBuffers( 0, 1, &pVertexBuffer, &stride, &offset );
// Set primitive topology
pD3DDevice->IASetPrimitiveTopology( D3D10_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP );
I suspect that locking blows avay buffer binding

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