///////////////////////////////////////////////////////////////////////////////
// This function does any needed initialization on the rendering context.
// This is the first opportunity to do any OpenGL related tasks.
void SetupRC()
{
// Blue background
glClearColor(0.0f, 0.0f, 1.0f, 1.0f );
shaderManager.InitializeStockShaders();
// Load up a triangle
GLfloat vVerts[] = { -0.5f, 0.0f, 0.0f,
0.5f, 0.0f, 0.0f,
0.0f, 0.5f, 0.0f };
triangleBatch.Begin(GL_TRIANGLES, 3);
triangleBatch.CopyVertexData3f(vVerts);
triangleBatch.End();
}
//为程序作一次性的设置
void SetupRC()
{
//设置背影颜色
glClearColor(0.0f, 0.0f, 1.0f, 1.0f);
//初始化着色管理器
shaderManager.InitializeStockShaders();
//设置三角形，其中数组vVert包含所有3个顶点的x,y,笛卡尔坐标对。
GLfloat vVerts[] = {
-0.5f,0.0f,0.0f,
0.5f,0.0f,0.0f,
0.0f,0.5f,0.0f,
};
//批次处理
triangleBatch.Begin(GL_TRIANGLES,3);
triangleBatch.CopyVertexData3f(vVerts);
triangleBatch.End();
}
///////////////////////////////////////////////////////////////////////////////
// This function does any needed initialization on the rendering context.
// This is the first opportunity to do any OpenGL related tasks.
void SetupRC()
{
// Blue background
glClearColor(0.0f, 0.0f, 1.0f, 1.0f );
shaderManager.InitializeStockShaders();
// Load up a triangle
GLfloat vVerts[] = { -0.5f, 0.0f, 0.0f,
0.5f, 0.0f, 0.0f,
0.0f, 0.5f, 0.0f };
triangleBatch.Begin(GL_TRIANGLES, 3);
triangleBatch.CopyVertexData3f(vVerts);
triangleBatch.End();
myIdentityShader = shaderManager.LoadShaderPairWithAttributes("Identity.vp", "Identity.fp", 1, GLT_ATTRIBUTE_VERTEX, "vVertex");
}
/**
* This function does any needed initialization on the rendering context.
* This is the first opportunity to do any OpenGL related tasks.
*/
void SetupRC()
{
// Blue background
glClearColor(0.0f, 0.0f, 1.0f, 1.0f );
shaderManager.init();
// load up a triangle
GLfloat vVerts[] = {
-0.5f, 0.0f, 0.0f,
0.5f, 0.0f, 0.0f,
0.0f, 0.5f, 0.0f
};
GLfloat vTexCoords[] = {
0.0f, 0.0f,
1.0f, 0.0f,
0.5f, 1.0f
};
triangleBatch.begin(GL_TRIANGLES, 3, 1);
triangleBatch.CopyVertexData3f(vVerts);
triangleBatch.CopyTexCoordData2f(vTexCoords, 0);
triangleBatch.end();
myTexturedIdentityShader = gltLoadShaderWithFileEx("TextureIndentity.vp",
"TextureIndentity.fp",
2,
GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_TEXTURE0, "vTexCoords");
glGenTextures(1, &textureId);
glBindTexture(GL_TEXTURE_2D, textureId);
gltLoadTextureTGA("stone.tga", GL_LINEAR, GL_LINEAR, GL_CLAMP_TO_EDGE);
}
void SetupRC()
{
glClearColor(0, 0, 0, 1);
shaderManager.InitializeStockShaders();
glEnable(GL_DEPTH_TEST);
gltMakeSphere(sphereBatch, 0.4, 20, 20);
gltMakeCube(cubeBatch, 0.3);
// Load up a triangle
GLfloat vVerts[] = { -0.5f, 0.0f, 0.0f,
0.5f, 0.0f, 0.0f,
0.0f, 0.5f, 0.0f };
GLfloat vColors [] = { 1.0f, 0.0f, 0.0f, 1.0f,
0.0f, 1.0f, 0.0f, 1.0f,
0.0f, 0.0f, 1.0f, 1.0f };
triangleBatch.Begin(GL_TRIANGLES, 3);
triangleBatch.CopyVertexData3f(vVerts);
triangleBatch.CopyColorData4f(vColors);
triangleBatch.End();
mWcgCube.SetupCube();
/*transformPipeline.SetMatrixStacks(modelViewMatrix, projectionMatrix);*/
cameraFrame.MoveForward(-3.0f);
m3dLoadIdentity44(mRotation);
myShader = gltLoadShaderPairWithAttributes("shader.vp", "shader.fp", 2, GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_COLOR, "vColor");
locMVP = glGetUniformLocation(myShader, "mvpMatrix");
}
// This function does any needed initialization on the rendering
// context.
void SetupRC()
{
M3DVector3f vVerts[SMALL_STARS]; // SMALL_STARS is the largest batch we are going to need
int i;
shaderManager.InitializeStockShaders();
// Populate star list
smallStarBatch.Begin(GL_POINTS, SMALL_STARS);
for(i = 0; i < SMALL_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
smallStarBatch.CopyVertexData3f(vVerts);
smallStarBatch.End();
// Populate star list
mediumStarBatch.Begin(GL_POINTS, MEDIUM_STARS);
for(i = 0; i < MEDIUM_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
mediumStarBatch.CopyVertexData3f(vVerts);
mediumStarBatch.End();
// Populate star list
largeStarBatch.Begin(GL_POINTS, LARGE_STARS);
for(i = 0; i < LARGE_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
largeStarBatch.CopyVertexData3f(vVerts);
largeStarBatch.End();
M3DVector3f vMountains[12] = { 0.0f, 25.0f, 0.0f,
50.0f, 100.0f, 0.0f,
100.0f, 25.0f, 0.0f,
225.0f, 125.0f, 0.0f,
300.0f, 50.0f, 0.0f,
375.0f, 100.0f, 0.0f,
460.0f, 25.0f, 0.0f,
525.0f, 100.0f, 0.0f,
600.0f, 20.0f, 0.0f,
675.0f, 70.0f, 0.0f,
750.0f, 25.0f, 0.0f,
800.0f, 90.0f, 0.0f };
mountainRangeBatch.Begin(GL_LINE_STRIP, 12);
mountainRangeBatch.CopyVertexData3f(vMountains);
mountainRangeBatch.End();
// The Moon
GLfloat x = 700.0f; // Location and radius of moon
GLfloat y = 500.0f;
GLfloat r = 50.0f;
GLfloat angle = 0.0f; // Another looping variable
moonBatch.Begin(GL_TRIANGLE_FAN, 34);
int nVerts = 0;
vVerts[nVerts][0] = x;
vVerts[nVerts][1] = y;
vVerts[nVerts][2] = 0.0f;
for(angle = 0; angle < 2.0f * 3.141592f; angle += 0.2f) {
nVerts++;
vVerts[nVerts][0] = x + float(cos(angle)) * r;
vVerts[nVerts][1] = y + float(sin(angle)) * r;
vVerts[nVerts][2] = 0.0f;
}
nVerts++;
vVerts[nVerts][0] = x + r;;
vVerts[nVerts][1] = y;
vVerts[nVerts][2] = 0.0f;
moonBatch.CopyVertexData3f(vVerts);
moonBatch.End();
// Black background
glClearColor(0.0f, 0.0f, 0.0f, 1.0f );
}
// This function does any needed initialization on the rendering
// context.
void SetupRC()
{
M3DVector3f vVerts[SMALL_STARS]; // SMALL_STARS is the largest batch we are going to need
int i;
shaderManager.InitializeStockShaders();
// Populate star list
smallStarBatch.Begin(GL_POINTS, SMALL_STARS);
for(i = 0; i < SMALL_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
smallStarBatch.CopyVertexData3f(vVerts);
smallStarBatch.End();
// Populate star list
mediumStarBatch.Begin(GL_POINTS, MEDIUM_STARS);
for(i = 0; i < MEDIUM_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
mediumStarBatch.CopyVertexData3f(vVerts);
mediumStarBatch.End();
// Populate star list
largeStarBatch.Begin(GL_POINTS, LARGE_STARS);
for(i = 0; i < LARGE_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
largeStarBatch.CopyVertexData3f(vVerts);
largeStarBatch.End();
M3DVector3f vMountains[12] = { 0.0f, 25.0f, 0.0f,
50.0f, 100.0f, 0.0f,
100.0f, 25.0f, 0.0f,
225.0f, 125.0f, 0.0f,
300.0f, 50.0f, 0.0f,
375.0f, 100.0f, 0.0f,
460.0f, 25.0f, 0.0f,
525.0f, 100.0f, 0.0f,
600.0f, 20.0f, 0.0f,
675.0f, 70.0f, 0.0f,
750.0f, 25.0f, 0.0f,
800.0f, 90.0f, 0.0f };
mountainRangeBatch.Begin(GL_LINE_STRIP, 12);
mountainRangeBatch.CopyVertexData3f(vMountains);
mountainRangeBatch.End();
// The Moon
GLfloat x = 700.0f; // Location and radius of moon
GLfloat y = 500.0f;
GLfloat r = 50.0f;
GLfloat angle = 0.0f; // Another looping variable
moonBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
moonBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
moonBatch.Vertex3f(x - r, y - r, 0.0f);
moonBatch.MultiTexCoord2f(0, 1.0f, 0.0f);
moonBatch.Vertex3f(x + r, y - r, 0.0f);
moonBatch.MultiTexCoord2f(0, 1.0f, 1.0f);
moonBatch.Vertex3f(x + r, y + r, 0.0f);
moonBatch.MultiTexCoord2f(0, 0.0f, 1.0f);
moonBatch.Vertex3f(x - r, y + r, 0.0f);
moonBatch.End();
// Black background
glClearColor(0.0f, 0.0f, 0.0f, 1.0f );
// Turn on line antialiasing, and give hint to do the best
// job possible.
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
glEnable(GL_LINE_SMOOTH);
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
starFieldShader = gltLoadShaderPairWithAttributes("StarField.vp", "StarField.fp", 1, GLT_ATTRIBUTE_VERTEX, "vVertex");
locMVP = glGetUniformLocation(starFieldShader, "mvpMatrix");
locStarTexture = glGetUniformLocation(starFieldShader, "starImage");
moonShader = gltLoadShaderPairWithAttributes("MoonShader.vp", "MoonShader.fp", 2, GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_TEXTURE0, "vTexCoords");
locMoonMVP = glGetUniformLocation(moonShader, "mvpMatrix");
locMoonTexture = glGetUniformLocation(moonShader, "moonImage");
locMoonTime = glGetUniformLocation(moonShader, "fTime");
glGenTextures(1, &starTexture);
glBindTexture(GL_TEXTURE_2D, starTexture);
LoadTGATexture("Star.tga", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_CLAMP_TO_EDGE);
glGenTextures(1, &moonTexture);
glBindTexture(GL_TEXTURE_2D_ARRAY, moonTexture);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage3D(GL_TEXTURE_2D_ARRAY, 0, GL_RGBA, 64, 64, 30, 0,
GL_BGRA, GL_UNSIGNED_BYTE, NULL);
for(int i = 0; i < 29; i++) {
char cFile[32];
sprintf(cFile, "moon%02d.tga", i);
GLbyte *pBits;
int nWidth, nHeight, nComponents;
GLenum eFormat;
// Read the texture bits
pBits = gltReadTGABits(cFile, &nWidth, &nHeight, &nComponents, &eFormat);
glTexSubImage3D(GL_TEXTURE_2D_ARRAY, 0, 0, 0, i, nWidth, nHeight, 1, GL_BGRA, GL_UNSIGNED_BYTE, pBits);
free(pBits);
}
}
///////////////////////////////////////////////////////////////////////////////
// This function does any needed initialization on the rendering context.
// This is the first opportunity to do any OpenGL related tasks.
void SetupRC()
{
// Black background
glClearColor(0.7f, 0.7f, 0.7f, 1.0f );
shaderManager.InitializeStockShaders();
glEnable(GL_DEPTH_TEST);
transformPipeline.SetMatrixStacks(modelViewMatrix, projectionMatrix);
cameraFrame.MoveForward(-15.0f);
//////////////////////////////////////////////////////////////////////
// Some points, more or less in the shape of Florida
GLfloat vCoast[24][3] = {{2.80, 1.20, 0.0 }, {2.0, 1.20, 0.0 },
{2.0, 1.08, 0.0 }, {2.0, 1.08, 0.0 },
{0.0, 0.80, 0.0 }, {-.32, 0.40, 0.0 },
{-.48, 0.2, 0.0 }, {-.40, 0.0, 0.0 },
{-.60, -.40, 0.0 }, {-.80, -.80, 0.0 },
{-.80, -1.4, 0.0 }, {-.40, -1.60, 0.0 },
{0.0, -1.20, 0.0 }, { .2, -.80, 0.0 },
{.48, -.40, 0.0 }, {.52, -.20, 0.0 },
{.48, .20, 0.0 }, {.80, .40, 0.0 },
{1.20, .80, 0.0 }, {1.60, .60, 0.0 },
{2.0, .60, 0.0 }, {2.2, .80, 0.0 },
{2.40, 1.0, 0.0 }, {2.80, 1.0, 0.0 }};
// Load point batch
pointBatch.Begin(GL_POINTS, 24);
pointBatch.CopyVertexData3f(vCoast);
pointBatch.End();
// Load as a bunch of line segments
lineBatch.Begin(GL_LINES, 24);
lineBatch.CopyVertexData3f(vCoast);
lineBatch.End();
// Load as a single line segment
lineStripBatch.Begin(GL_LINE_STRIP, 24);
lineStripBatch.CopyVertexData3f(vCoast);
lineStripBatch.End();
// Single line, connect first and last points
lineLoopBatch.Begin(GL_LINE_LOOP, 24);
lineLoopBatch.CopyVertexData3f(vCoast);
lineLoopBatch.End();
// For Triangles, we'll make a Pyramid
GLfloat vPyramid[12][3] = { -2.0f, 0.0f, -2.0f,
2.0f, 0.0f, -2.0f,
0.0f, 4.0f, 0.0f,
2.0f, 0.0f, -2.0f,
2.0f, 0.0f, 2.0f,
0.0f, 4.0f, 0.0f,
2.0f, 0.0f, 2.0f,
-2.0f, 0.0f, 2.0f,
0.0f, 4.0f, 0.0f,
-2.0f, 0.0f, 2.0f,
-2.0f, 0.0f, -2.0f,
0.0f, 4.0f, 0.0f};
triangleBatch.Begin(GL_TRIANGLES, 12);
triangleBatch.CopyVertexData3f(vPyramid);
triangleBatch.End();
// For a Triangle fan, just a 6 sided hex. Raise the center up a bit
GLfloat vPoints[100][3]; // Scratch array, more than we need
int nVerts = 0;
GLfloat r = 3.0f;
vPoints[nVerts][0] = 0.0f;
vPoints[nVerts][1] = 0.0f;
vPoints[nVerts][2] = 0.0f;
for(GLfloat angle = 0; angle < M3D_2PI; angle += M3D_2PI / 6.0f) {
nVerts++;
vPoints[nVerts][0] = float(cos(angle)) * r;
vPoints[nVerts][1] = float(sin(angle)) * r;
vPoints[nVerts][2] = -0.5f;
}
// Close the fan
nVerts++;
vPoints[nVerts][0] = r;
vPoints[nVerts][1] = 0;
vPoints[nVerts][2] = 0.0f;
// Load it up
triangleFanBatch.Begin(GL_TRIANGLE_FAN, 8);
triangleFanBatch.CopyVertexData3f(vPoints);
triangleFanBatch.End();
// For triangle strips, a little ring or cylinder segment
int iCounter = 0;
GLfloat radius = 3.0f;
for(GLfloat angle = 0.0f; angle <= (2.0f*M3D_PI); angle += 0.3f)
{
GLfloat x = radius * sin(angle);
GLfloat y = radius * cos(angle);
// Specify the point and move the Z value up a little
vPoints[iCounter][0] = x;
vPoints[iCounter][1] = y;
vPoints[iCounter][2] = -0.5;
iCounter++;
vPoints[iCounter][0] = x;
vPoints[iCounter][1] = y;
vPoints[iCounter][2] = 0.5;
iCounter++;
}
// Close up the loop
vPoints[iCounter][0] = vPoints[0][0];
vPoints[iCounter][1] = vPoints[0][1];
vPoints[iCounter][2] = -0.5;
iCounter++;
vPoints[iCounter][0] = vPoints[1][0];
vPoints[iCounter][1] = vPoints[1][1];
vPoints[iCounter][2] = 0.5;
iCounter++;
// Load the triangle strip
triangleStripBatch.Begin(GL_TRIANGLE_STRIP, iCounter);
triangleStripBatch.CopyVertexData3f(vPoints);
triangleStripBatch.End();
}
void SetupRC()
{
glClearColor(0.7f, 0.7f, 0.7f, 1.0f );
shaderManager.InitializeStockShaders();
glEnable(GL_DEPTH_TEST);
transformPipeline.SetMatrixStacks(modelViewMatrix, projectionMatrix);
cameraFrame.MoveForward(-15.0f);
// 一组图元顶点——长得像佛罗里达州
GLfloat vCoast[24][3] = {
{2.80, 1.20, 0.0 }, {2.0, 1.20, 0.0 },
{2.0, 1.08, 0.0 }, {2.0, 1.08, 0.0 },
{0.0, 0.80, 0.0 }, {-.32, 0.40, 0.0 },
{-.48, 0.2, 0.0 }, {-.40, 0.0, 0.0 },
{-.60, -.40, 0.0 }, {-.80, -.80, 0.0 },
{-.80, -1.4, 0.0 }, {-.40, -1.60, 0.0 },
{0.0, -1.20, 0.0 }, { .2, -.80, 0.0 },
{.48, -.40, 0.0 }, {.52, -.20, 0.0 },
{.48, .20, 0.0 }, {.80, .40, 0.0 },
{1.20, .80, 0.0 }, {1.60, .60, 0.0 },
{2.0, .60, 0.0 }, {2.2, .80, 0.0 },
{2.40, 1.0, 0.0 }, {2.80, 1.0, 0.0 }
};
// 点批次
pointBatch.Begin(GL_POINTS, 24);
pointBatch.CopyVertexData3f(vCoast);
pointBatch.End();
// 线段批次
lineBatch.Begin(GL_LINES, 24);
lineBatch.CopyVertexData3f(vCoast);
lineBatch.End();
// 线批次
lineStripBatch.Begin(GL_LINE_STRIP, 24);
lineStripBatch.CopyVertexData3f(vCoast);
lineStripBatch.End();
// 循环线批次
lineLoopBatch.Begin(GL_LINE_LOOP, 24);
lineLoopBatch.CopyVertexData3f(vCoast);
lineLoopBatch.End();
GLfloat vPyramid[12][3] = {
-2.0f, 0.0f, -2.0f,
2.0f, 0.0f, -2.0f,
0.0f, 4.0f, 0.0f,
2.0f, 0.0f, -2.0f,
2.0f, 0.0f, 2.0f,
0.0f, 4.0f, 0.0f,
2.0f, 0.0f, 2.0f,
-2.0f, 0.0f, 2.0f,
0.0f, 4.0f, 0.0f,
-2.0f, 0.0f, 2.0f,
-2.0f, 0.0f, -2.0f,
0.0f, 4.0f, 0.0f
};
triangleBatch.Begin(GL_TRIANGLES, 12);
triangleBatch.CopyVertexData3f(vPyramid);
triangleBatch.End();
GLfloat vPoints[100][3];
int nVerts = 0;
GLfloat r = 3.0f;
vPoints[nVerts][0] = 0.0f;
vPoints[nVerts][1] = 0.0f;
vPoints[nVerts][2] = 0.0f;
for(GLfloat angle = 0; angle < M3D_2PI; angle += M3D_2PI / 6.0f)
{
nVerts++;
vPoints[nVerts][0] = float(cos(angle)) * r;
vPoints[nVerts][1] = float(sin(angle)) * r;
vPoints[nVerts][2] = -0.5f;
}
nVerts++;
vPoints[nVerts][0] = r;
vPoints[nVerts][1] = 0;
vPoints[nVerts][2] = 0.0f;
triangleFanBatch.Begin(GL_TRIANGLE_FAN, 8);
triangleFanBatch.CopyVertexData3f(vPoints);
triangleFanBatch.End();
int iCounter = 0;
GLfloat radius = 3.0f;
for(GLfloat angle = 0.0f; angle <= (2.0f * M3D_PI); angle += 0.3f)
{
GLfloat x = radius * sin(angle);
GLfloat y = radius * cos(angle);
vPoints[iCounter][0] = x;
vPoints[iCounter][1] = y;
vPoints[iCounter][2] = -0.5;
iCounter++;
vPoints[iCounter][0] = x;
vPoints[iCounter][1] = y;
vPoints[iCounter][2] = 0.5;
iCounter++;
}
vPoints[iCounter][0] = vPoints[0][0];
vPoints[iCounter][1] = vPoints[0][1];
vPoints[iCounter][2] = -0.5;
iCounter++;
vPoints[iCounter][0] = vPoints[1][0];
vPoints[iCounter][1] = vPoints[1][1];
vPoints[iCounter][2] = 0.5;
iCounter++;
triangleStripBatch.Begin(GL_TRIANGLE_STRIP, iCounter);
triangleStripBatch.CopyVertexData3f(vPoints);
triangleStripBatch.End();
}
void CreateSphere(float xShift, float yShift, float zShift) {
float radius = 50.0f * scale;
float diameter = radius * 2;
GLfloat x, z;
M3DVector3f* bodyVertices = new M3DVector3f[sphereArraySize * 2];
M3DVector4f* bodyColors = new M3DVector4f[sphereArraySize * 2];
m3dLoadVector3(bodyVertices[0], xShift, radius - diameter/tesselation + yShift, zShift);
m3dLoadVector3(bodyVertices[1], 0.0f + xShift, radius - 2*diameter/tesselation + yShift, zShift);
m3dLoadVector4(bodyColors[0], 0.91f, 0.70f, 0.54f, 1.0f);
m3dLoadVector4(bodyColors[1], 0.91f, 0.70f, 0.54f, 1.0f);
int i = 1;
int colorIndex = 0;
// Kugel vertikal entlang der Breitengrade durchlaufen
for (GLfloat latitude = 0.0f; latitude <= GL_PI; latitude += (GL_PI / tesselation)) {
float sliceRadius = radius * sin(latitude);
GLfloat y = radius * cos(latitude) + yShift;
// Kugelscheibe entlang der Laengengrade durchlaufen
for (GLfloat longitude = 0.0f; longitude <= (2.0f*GL_PI); longitude += (GL_PI / tesselation)) {
float upperRadius = sliceRadius;
float lowerRadius = radius * sin(latitude + (GL_PI / tesselation));
x = cos(longitude);
z = sin(longitude);
m3dLoadVector3(bodyVertices[2 * i], x*upperRadius + xShift, y, z*upperRadius + zShift);
m3dLoadVector3(bodyVertices[2 * i + 1], x*lowerRadius + xShift, radius * cos(latitude + GL_PI/tesselation), z*lowerRadius + zShift);
//fuer Abgabe einkommentieren :)
//if (colorIndex % 2 == 0) {
// m3dLoadVector4(bodyColors[2 * i], 1.0f, 0.8f, 0.2f, 1.0f);
// m3dLoadVector4(bodyColors[2 * i + 1], 1.0f, 0.8f, 0.2f, 1.0f);
//}
//else {
// m3dLoadVector4(bodyColors[2 * i], 0.235f, 0.235f, 0.235f, 1.0f);
// m3dLoadVector4(bodyColors[2 * i + 1], 0.235f, 0.235f, 0.235f, 1.0f);
//}
// fuer Maennchen einkommentieren :)
m3dLoadVector4(bodyColors[2 * i], 0.91f, 0.70f, 0.54f, 1.0f);
m3dLoadVector4(bodyColors[2 * i + 1], 0.91f, 0.70f, 0.54f, 1.0f);
i++;
}
colorIndex++;
}
sphereBody.Reset();
sphereBody.Begin(GL_TRIANGLE_STRIP, sphereArraySize);
sphereBody.CopyVertexData3f(bodyVertices);
sphereBody.CopyColorData4f(bodyColors);
sphereBody.End();
delete[] bodyVertices;
delete[] bodyColors;
}
void CreateCylinder(float xShift, float yShift, float zShift) {
GLfloat x, z, angle;
float radius = 50.0f * scale;
int i = 1;
M3DVector3f* fussVertices = new M3DVector3f[arraySize];
M3DVector3f* kopfVertices = new M3DVector3f[arraySize];
M3DVector3f* planeVertices = new M3DVector3f[doubleArraySize];
M3DVector4f* fussColors = new M3DVector4f[arraySize];
M3DVector4f* kopfColors = new M3DVector4f[arraySize];
M3DVector4f* planeColors = new M3DVector4f[doubleArraySize];
m3dLoadVector3(fussVertices[0], xShift, -radius + yShift, zShift);
m3dLoadVector3(kopfVertices[0], xShift, radius + yShift, zShift);
m3dLoadVector3(planeVertices[0], xShift, -radius + yShift, zShift);
m3dLoadVector3(planeVertices[1], xShift, radius + yShift, zShift);
m3dLoadVector4(fussColors[0], 0.0f, 0.7f, 0.0f, 1);
m3dLoadVector4(kopfColors[0], 0.0f, 0.5f, 0.1f, 1);
m3dLoadVector4(planeColors[0], 0.1f, 0.3f, 0.0f, 1);
m3dLoadVector4(planeColors[1], 0.1f, 0.3f, 0.0f, 1);
for (angle = 0.0f; angle <= (2.0f*GL_PI); angle += (GL_PI / tesselation)) {
// Berechne x und y Positionen des naechsten Vertex
x = radius*sin(angle);
z = radius*cos(angle);
m3dLoadVector3(fussVertices[i], x + xShift, -radius + yShift, z + zShift);
m3dLoadVector3(kopfVertices[i], -x, radius + yShift, z + zShift);
m3dLoadVector3(planeVertices[2 * i], x + xShift, -radius + yShift, z + zShift);
m3dLoadVector3(planeVertices[2 * i + 1], x + xShift, radius + yShift, z + zShift);
m3dLoadVector4(fussColors[i], 0.0f, 0.7f, 0.0f, 1.0f);
m3dLoadVector4(kopfColors[i], 0.0f, 0.5f, 0.1f, 1.0f);
m3dLoadVector4(planeColors[2 * i], 0.1f, 0.3f, 0.0f, 1.0f);
m3dLoadVector4(planeColors[2 * i + 1], 0.1f, 0.3f, 0.0f, 1.0f);
i++;
}
fuss.Begin(GL_TRIANGLE_FAN, arraySize);
kopf.Begin(GL_TRIANGLE_FAN, arraySize);
plane.Begin(GL_TRIANGLE_STRIP, doubleArraySize);
fuss.CopyVertexData3f(fussVertices);
fuss.CopyColorData4f(fussColors);
kopf.CopyVertexData3f(kopfVertices);
kopf.CopyColorData4f(kopfColors);
plane.CopyVertexData3f(planeVertices);
plane.CopyColorData4f(planeColors);
fuss.End();
kopf.End();
plane.End();
delete[] fussVertices;
delete[] fussColors;
delete[] kopfVertices;
delete[] kopfColors;
delete[] planeVertices;
delete[] planeColors;
}
void CreateCone(float xShift, float yShift, float zShift) {
//18 Vertices anlegen
M3DVector3f* konusVertices = new M3DVector3f[18];
M3DVector4f* konusColors = new M3DVector4f[18];
float radius = 50.0f * scale;
float height = 75.0f * scale;
// Die Spitze des Konus ist ein Vertex, den alle Triangles gemeinsam haben;
// um einen Konus anstatt einen Kreis zu produzieren muss der Vertex einen positiven z-Wert haben
m3dLoadVector3(konusVertices[0], xShift, height + yShift, zShift);
m3dLoadVector4(konusColors[0], 0.0f, 1.0f, 0.0f, 1.0f);
// Kreise um den Mittelpunkt und spezifiziere Vertices entlang des Kreises
// um einen Triangle_Fan zu erzeugen
int iPivot = 1;
int i = 1;
for (float angle = 0.0f; angle < (2.0f*GL_PI); angle += (GL_PI / 8))
{
// Berechne x und y Positionen des naechsten Vertex
float x = radius*cos(angle);
float z = radius*sin(angle);
// Alterniere die Farbe zwischen Rot und Gruen
if ((iPivot % 2) == 0)
m3dLoadVector4(konusColors[i],0.9f, 1.0f, 0.9f, 1.0f);
else
m3dLoadVector4(konusColors[i], 0.0f, 0.4f, 0.2f, 1.0f);
// Inkrementiere iPivot um die Farbe beim naechsten mal zu wechseln
iPivot++;
// Spezifiziere den naechsten Vertex des Triangle_Fans
m3dLoadVector3(konusVertices[i], x + xShift, yShift, z + zShift);
i++;
}
konus.Begin(GL_TRIANGLE_FAN, 18);
konus.CopyVertexData3f(konusVertices);
konus.CopyColorData4f(konusColors);
konus.End();
delete[] konusVertices;
delete[] konusColors;
// Erzeuge einen weiteren Triangle_Fan um den Boden zu bedecken
M3DVector3f* bodenVertices = new M3DVector3f[18];
M3DVector4f* bodenColors = new M3DVector4f[18];
// Das Zentrum des Triangle_Fans ist im Ursprung
m3dLoadVector3(bodenVertices[0], 0, 0, zShift);
m3dLoadVector4(bodenColors[0], 1, 0, 0, 1);
i = 1;
for (float angle = 0.0f; angle < (2.0f*GL_PI); angle += (GL_PI / 8)) {
// Berechne x und y Positionen des naechsten Vertex
float x = radius*sin(angle);
float z = radius*cos(angle);
m3dLoadVector4(bodenColors[i], 0.0f, 0.2f, 0.0f, 1.0f);
// Inkrementiere iPivot um die Farbe beim naechsten mal zu wechseln
iPivot++;
// Spezifiziere den naechsten Vertex des Triangle_Fans
m3dLoadVector3(bodenVertices[i], x + xShift, yShift, z + zShift);
i++;
}
kboden.Begin(GL_TRIANGLE_FAN, 18);
kboden.CopyVertexData3f(bodenVertices);
kboden.CopyColorData4f(bodenColors);
kboden.End();
delete[] bodenVertices;
delete[] bodenColors;
}
// This function does any needed initialization on the rendering
// context.
void SetupRC()
{
M3DVector3f vVerts[SMALL_STARS]; // SMALL_STARS is the largest batch we are going to need
int i;
#ifndef OPENGL_ES
glEnable(GL_POINT_SPRITE);
#endif
shaderManager.InitializeStockShaders();
// A number of shipping drivers are not conformant to the current OpenGL
// spec and require this. NVidia... in particular. The OpenGL specification
// states that this is always "on", in fact you can't enable or disable it
// anymore. Adding this lines "fixes" this on non-conformant drivers, but
// be aware, if you have a pure core (and working correctly) GL context,
//you should not do this
#ifndef OPENGL_ES
glEnable(GL_POINT_SPRITE);
#endif
// Populate star list
smallStarBatch.Begin(GL_POINTS, SMALL_STARS);
for(i = 0; i < SMALL_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
smallStarBatch.CopyVertexData3f(vVerts);
smallStarBatch.End();
// Populate star list
mediumStarBatch.Begin(GL_POINTS, MEDIUM_STARS);
for(i = 0; i < MEDIUM_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
mediumStarBatch.CopyVertexData3f(vVerts);
mediumStarBatch.End();
// Populate star list
largeStarBatch.Begin(GL_POINTS, LARGE_STARS);
for(i = 0; i < LARGE_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
largeStarBatch.CopyVertexData3f(vVerts);
largeStarBatch.End();
M3DVector3f vMountains[12] = { 0.0f, 25.0f, 0.0f,
50.0f, 100.0f, 0.0f,
100.0f, 25.0f, 0.0f,
225.0f, 125.0f, 0.0f,
300.0f, 50.0f, 0.0f,
375.0f, 100.0f, 0.0f,
460.0f, 25.0f, 0.0f,
525.0f, 100.0f, 0.0f,
600.0f, 20.0f, 0.0f,
675.0f, 70.0f, 0.0f,
750.0f, 25.0f, 0.0f,
800.0f, 90.0f, 0.0f };
mountainRangeBatch.Begin(GL_LINE_STRIP, 12);
mountainRangeBatch.CopyVertexData3f(vMountains);
mountainRangeBatch.End();
// The Moon
GLfloat x = 700.0f; // Location and radius of moon
GLfloat y = 500.0f;
GLfloat r = 50.0f;
GLfloat angle = 0.0f; // Another looping variable
moonBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
moonBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
moonBatch.Vertex3f(x - r, y - r, 0.0f);
moonBatch.MultiTexCoord2f(0, 1.0f, 0.0f);
moonBatch.Vertex3f(x + r, y - r, 0.0f);
moonBatch.MultiTexCoord2f(0, 1.0f, 1.0f);
moonBatch.Vertex3f(x + r, y + r, 0.0f);
moonBatch.MultiTexCoord2f(0, 0.0f, 1.0f);
moonBatch.Vertex3f(x - r, y + r, 0.0f);
moonBatch.End();
// Black background
glClearColor(0.0f, 0.0f, 0.0f, 1.0f );
// Turn on line antialiasing, and give hint to do the best
// job possible.
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
#ifndef OPENGL_ES
glEnable(GL_LINE_SMOOTH);
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
#endif
starFieldShader = gltLoadShaderPairWithAttributes("StarField.vp", "StarField.fp", 1, GLT_ATTRIBUTE_VERTEX, "vVertex");
locMVP = glGetUniformLocation(starFieldShader, "mvpMatrix");
locStarTexture = glGetUniformLocation(starFieldShader, "starImage");
#ifdef OPENGL_ES
locPointSize = glGetUniformLocation(starFieldShader, "fPointSize");
#endif
moonShader = gltLoadShaderPairWithAttributes("MoonShader.vp", "MoonShader.fp", 2, GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_TEXTURE0, "vTexCoords");
locMoonMVP = glGetUniformLocation(moonShader, "mvpMatrix");
locMoonTexture = glGetUniformLocation(moonShader, "moonImage");
locMoonTime = glGetUniformLocation(moonShader, "fTime");
glGenTextures(1, &starTexture);
glBindTexture(GL_TEXTURE_2D, starTexture);
LoadTGATexture("Star.tga", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_CLAMP_TO_EDGE);
#ifndef OPENGL_ES
glGenTextures(1, &moonTexture);
glBindTexture(GL_TEXTURE_2D_ARRAY, moonTexture);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage3D(GL_TEXTURE_2D_ARRAY, 0, GL_RGBA, 64, 64, 30, 0,
GL_BGRA, GL_UNSIGNED_BYTE, NULL);
for(int i = 0; i < 29; i++) {
char cFile[32];
sprintf(cFile, "moon%02d.tga", i);
GLbyte *pBits;
int nWidth, nHeight, nComponents;
GLenum eFormat;
// Read the texture bits
pBits = gltReadTGABits(cFile, &nWidth, &nHeight, &nComponents, &eFormat);
glTexSubImage3D(GL_TEXTURE_2D_ARRAY, 0, 0, 0, i, nWidth, nHeight, 1, GL_BGRA, GL_UNSIGNED_BYTE, pBits);
free(pBits);
}
#else
glGenTextures(29, moonTextures);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
for(int i = 0; i < 29; i++) {
char cFile[32];
sprintf(cFile, "moon%02d.tga", i);
glBindTexture(GL_TEXTURE_2D, moonTextures[i]);
LoadTGATexture(cFile, GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_CLAMP_TO_EDGE);
}
#endif
}
