void bumpmapping_app::render(double currentTime)
{
static const GLfloat zeros[] = { 0.0f, 0.0f, 0.0f, 0.0f };
static const GLfloat gray[] = { 0.1f, 0.1f, 0.1f, 0.0f };
static const GLfloat ones[] = { 1.0f };
static double last_time = 0.0;
static double total_time = 0.0;
if (!paused)
total_time += (currentTime - last_time);
last_time = currentTime;
const float f = (float)total_time;
glClearBufferfv(GL_COLOR, 0, gray);
glClearBufferfv(GL_DEPTH, 0, ones);
glViewport(0, 0, info.windowWidth, info.windowHeight);
glEnable(GL_DEPTH_TEST);
glUseProgram(program);
vmath::mat4 proj_matrix = vmath::perspective(50.0f,
(float)info.windowWidth / (float)info.windowHeight,
0.1f,
1000.0f);
glUniformMatrix4fv(uniforms.proj_matrix, 1, GL_FALSE, proj_matrix);
vmath::mat4 mv_matrix = vmath::translate(0.0f, -0.2f, -5.5f) *
vmath::rotate(14.5f, 1.0f, 0.0f, 0.0f) *
vmath::rotate(-20.0f, 0.0f, 1.0f, 0.0f) *
//vmath::rotate(t * 14.5f, 0.0f, 1.0f, 0.0f) *
//vmath::rotate(0.0f, 1.0f, 0.0f, 0.0f) *
vmath::mat4::identity();
glUniformMatrix4fv(uniforms.mv_matrix, 1, GL_FALSE, mv_matrix);
glUniform3fv(uniforms.light_pos, 1, vmath::vec3(40.0f * sinf(f), 30.0f + 20.0f * cosf(f), 40.0f));
object.render();
}
void pmbstreaming_app::render(double currentTime)
{
static float lastTime = 0.0f;
static int frames = 0;
float nowTime = float(currentTime);
int isSignaled;
static const GLfloat black[] = { 0.0f, 0.0f, 0.0f, 0.0f };
static const GLfloat one[] = { 1.0f };
vmath::mat4 proj_matrix = vmath::perspective(60.0f, (float)info.windowWidth / (float)info.windowHeight, 0.1f, 1800.0f);
vmath::mat4 mv_matrix = vmath::translate(0.0f, 0.0f, -3.0f) *
vmath::rotate((float)currentTime * 43.75f, 0.0f, 1.0f, 0.0f) *
vmath::rotate((float)currentTime * 17.75f, 0.0f, 0.0f, 1.0f) *
vmath::rotate((float)currentTime * 35.3f, 1.0f, 0.0f, 0.0f);
glViewport(0, 0, info.windowWidth, info.windowHeight);
glClearBufferfv(GL_COLOR, 0, black);
glClearBufferfv(GL_DEPTH, 0, one);
glUseProgram(program);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texture);
if (mode == ONE_SYNC)
{
if (fence[0] != 0)
{
glGetSynciv(fence[0], GL_SYNC_STATUS, sizeof(int), nullptr, &isSignaled);
stalled = isSignaled == GL_UNSIGNALED;
glClientWaitSync(fence[0], 0, GL_TIMEOUT_IGNORED);
glDeleteSync(fence[0]);
}
}
else if (mode == RINGED_SYNC)
{
if (fence[sync_index] != 0)
{
glGetSynciv(fence[sync_index], GL_SYNC_STATUS, sizeof(int), nullptr, &isSignaled);
stalled = isSignaled == GL_UNSIGNALED;
glClientWaitSync(fence[sync_index], 0, GL_TIMEOUT_IGNORED);
glDeleteSync(fence[sync_index]);
}
}
vs_uniforms[sync_index].modelview = mv_matrix;
vs_uniforms[sync_index].projection = proj_matrix;
if (mode == RINGED_SYNC)
{
object.render(1, sync_index);
}
else
{
object.render(1, 0);
}
if (nowTime > (lastTime + 0.25f))
{
fps = float(frames) / (nowTime - lastTime);
frames = 0;
lastTime = nowTime;
}
updateOverlay();
if (mode == FINISH)
{
glFinish();
stalled = true;
}
else if (mode == ONE_SYNC)
{
fence[0] = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
}
else if (mode == RINGED_SYNC)
{
fence[sync_index] = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
}
sync_index = (sync_index + 1) % CHUNK_COUNT;
frames++;
}
void phonglighting_app::render(double currentTime)
{
static const GLfloat zeros[] = { 0.0f, 0.0f, 0.0f, 0.0f };
static const GLfloat gray[] = { 0.1f, 0.1f, 0.1f, 0.0f };
static const GLfloat ones[] = { 1.0f };
const float f = (float)currentTime;
glUseProgram(per_vertex ? per_vertex_program : per_fragment_program);
glViewport(0, 0, info.windowWidth, info.windowHeight);
glClearBufferfv(GL_COLOR, 0, gray);
glClearBufferfv(GL_DEPTH, 0, ones);
/*
vmath::mat4 model_matrix = vmath::rotate((float)currentTime * 14.5f, 0.0f, 1.0f, 0.0f) *
vmath::rotate(180.0f, 0.0f, 0.0f, 1.0f) *
vmath::rotate(20.0f, 1.0f, 0.0f, 0.0f);
*/
vmath::vec3 view_position = vmath::vec3(0.0f, 0.0f, 50.0f);
vmath::mat4 view_matrix = vmath::lookat(view_position,
vmath::vec3(0.0f, 0.0f, 0.0f),
vmath::vec3(0.0f, 1.0f, 0.0f));
vmath::vec3 light_position = vmath::vec3(20.0f, 20.0f, 0.0f);
vmath::mat4 light_proj_matrix = vmath::frustum(-1.0f, 1.0f, -1.0f, 1.0f, 1.0f, 200.0f);
vmath::mat4 light_view_matrix = vmath::lookat(light_position,
vmath::vec3(0.0f), vmath::vec3(0.0f, 1.0f, 0.0f));
#if defined(MANY_OBJECTS)
int i, j;
for (j = 0; j < 7; j++)
{
for (i = 0; i < 7; i++)
{
glBindBufferBase(GL_UNIFORM_BUFFER, 0, uniforms_buffer);
uniforms_block * block = (uniforms_block *)glMapBufferRange(GL_UNIFORM_BUFFER,
0,
sizeof(uniforms_block),
GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
vmath::mat4 model_matrix = vmath::translate((float)i * 2.75f - 8.25f, 6.75f - (float)j * 2.25f, 0.0f);
block->mv_matrix = view_matrix * model_matrix;
block->view_matrix = view_matrix;
block->proj_matrix = vmath::perspective(50.0f,
(float)info.windowWidth / (float)info.windowHeight,
0.1f,
1000.0f);
glUnmapBuffer(GL_UNIFORM_BUFFER);
glUniform1f(uniforms[per_vertex ? 1 : 0].specular_power, powf(2.0f, (float)j + 2.0f));
glUniform3fv(uniforms[per_vertex ? 1 : 0].specular_albedo, 1, vmath::vec3((float)i / 9.0f + 1.0f / 9.0f));
object.render();
}
}
#else
glBindBufferBase(GL_UNIFORM_BUFFER, 0, uniforms_buffer);
uniforms_block * block = (uniforms_block *)glMapBufferRange(GL_UNIFORM_BUFFER,
0,
sizeof(uniforms_block),
GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
vmath::mat4 model_matrix = vmath::scale(7.0f);
block->mv_matrix = view_matrix * model_matrix;
block->view_matrix = view_matrix;
block->proj_matrix = vmath::perspective(50.0f,
(float)info.windowWidth / (float)info.windowHeight,
0.1f,
1000.0f);
glUnmapBuffer(GL_UNIFORM_BUFFER);
glUniform1f(uniforms[per_vertex ? 1 : 0].specular_power, 30.0f);
glUniform3fv(uniforms[per_vertex ? 1 : 0].specular_albedo, 1, vmath::vec3(1.0f));
object.render();
#endif
}
void assignment1_app::render(double currentTime)
{
const float f = (float)currentTime;
glUseProgram(per_vertex ? per_vertex_program : per_fragment_program);
#pragma region Calculations for mouse interaction camera rotation and translation matrix
float fAngle = 0.0f;
vmath::vec3 axis_in_camera_coord = (0.0f, 1.0f, 0.0f);
if (iCurMouseX != iPrevMouseX || iCurMouseY != iPrevMouseY) {
// Arcball Rotation
if (bRotate) {
vmath::vec3 va = getArcballVector(iPrevMouseX, iPrevMouseY);
vmath::vec3 vb = getArcballVector(iCurMouseX, iCurMouseY);
fAngle = acos(fmin(1.0f, vmath::dot(va, vb)));
axis_in_camera_coord = vmath::cross(va, vb);
axis_in_camera_coord = vmath::normalize(axis_in_camera_coord);
iPrevMouseX = iCurMouseX;
iPrevMouseY = iCurMouseY;
rotationMatrix *= vmath::rotate(vmath::degrees(fAngle), axis_in_camera_coord);
}
// Zoom in and out
if (bZoom) {
fZpos += (iCurMouseY - iPrevMouseY);
if (fZpos > 500)
{
fZpos = 500;
}
else if (fZpos < 10)
{
fZpos = 10;
}
iPrevMouseY = iCurMouseY;
iPrevMouseX = iCurMouseX;
}
// Pan camera left, right, up, and down
if (bPan) {
fXpos += (iCurMouseX - iPrevMouseX);
fYpos += (iCurMouseY - iPrevMouseY);
iPrevMouseY = iCurMouseY;
iPrevMouseX = iCurMouseX;
translationMatrix = vmath::translate(fXpos / (info.windowWidth / fZpos), -fYpos / (info.windowWidth / fZpos), 0.0f);
}
//Light position tracks with the camera
lightPos = vmath::vec4(iLightPosX * translationMatrix[0][0] + iLightPosX * translationMatrix[0][1] + iLightPosX * translationMatrix[0][2],
iLightPosY * translationMatrix[1][0] + iLightPosY * translationMatrix[1][1] + iLightPosY * translationMatrix[1][2],
iLightPosZ * translationMatrix[2][0] + iLightPosZ * translationMatrix[2][1] + iLightPosZ * translationMatrix[2][2],
1.0f
);
lightPos = vmath::vec4(lightPos[0] * rotationMatrix[0][0] + lightPos[0] * rotationMatrix[0][1] + lightPos[0] * rotationMatrix[0][2],
lightPos[1] * rotationMatrix[1][0] + lightPos[1] * rotationMatrix[1][1] + lightPos[1] * rotationMatrix[1][2],
lightPos[2] * rotationMatrix[2][0] + lightPos[2] * rotationMatrix[2][1] + lightPos[2] * rotationMatrix[2][2],
1.0f
);
}
#pragma endregion
glViewport(0, 0, info.windowWidth, info.windowHeight);
// Create sky blue background
glClearBufferfv(GL_COLOR, 0, skyBlue);
glClearBufferfv(GL_DEPTH, 0, ones);
// Set up view and perspective matrix
vmath::vec3 view_position = vmath::vec3(0.0f, 0.0f, fZpos);
vmath::mat4 view_matrix = vmath::lookat(view_position,
vmath::vec3(0.0f, 0.0f, 0.0f),
vmath::vec3(0.0f, 1.0f, 0.0f));
view_matrix *= translationMatrix;
view_matrix *= rotationMatrix;
vmath::mat4 perspective_matrix = vmath::perspective(50.0f, (float)info.windowWidth / (float)info.windowHeight, 0.1f, 1000.0f);
glUnmapBuffer(GL_UNIFORM_BUFFER); //release the mapping of a buffer object's data store into the client's address space
glBindBufferBase(GL_UNIFORM_BUFFER, 0, uniforms_buffer);
uniforms_block * block = (uniforms_block *)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(uniforms_block), GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
#pragma region Uniforms that remain constant for all geometery
block->proj_matrix = perspective_matrix;
block->lightPos = lightPos;
#pragma endregion
#pragma region Draw Sphere
glBindVertexArray(sphere_vao);
glUnmapBuffer(GL_UNIFORM_BUFFER);
glBindBufferBase(GL_UNIFORM_BUFFER, 0, uniforms_buffer);
block = (uniforms_block *)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(uniforms_block), GL_MAP_WRITE_BIT);
vmath::mat4 model_matrix =
vmath::translate(-9.3f, -16.0f, 1.0f) *
vmath::scale(6.0f);
block->mv_matrix = view_matrix * model_matrix;
block->view_matrix = view_matrix;
block->uni_color = purple;
block->useUniformColor = useUniformColor;
block->invertNormals = falseVec;
block->isSphere = trueVec;
glCullFace(GL_BACK);
object.render();
#pragma endregion
glUnmapBuffer(GL_UNIFORM_BUFFER); //release the mapping of a buffer object's data store into the client's address space
glBindBufferBase(GL_UNIFORM_BUFFER, 0, uniforms_buffer);
block = (uniforms_block *)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(uniforms_block), GL_MAP_WRITE_BIT);
#pragma region Uniforms that remain constant for cubes
block->uni_color = orange;
block->useUniformColor = falseVec;
block->isSphere = falseVec;
#pragma endregion
#pragma region bind cube vertex data
glBindVertexArray(cube_vao);
glBindBuffer(GL_ARRAY_BUFFER, buffer);
glEnableVertexAttribArray(0); //enable or disable a generic vertex attribute array
glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, 0); //define an array of generic vertex attribute data void glVertexAttribIPointer(GLuint index, GLint size, GLenum type, GLsizei stride, const GLvoid * pointer)
glBindBuffer(GL_ARRAY_BUFFER, normalsBuffer);
glEnableVertexAttribArray(1); //enable or disable a generic vertex attribute array
glVertexAttribPointer(1, 4, GL_FLOAT, GL_FALSE, 0, 0); //define an array of generic vertex attribute data void glVertexAttribIPointer(GLuint index, GLint size, GLenum type, GLsizei stride, const GLvoid * pointer)
glBindBuffer(GL_ARRAY_BUFFER, colorBuffer);
glEnableVertexAttribArray(2); //enable or disable a generic vertex attribute array
glVertexAttribPointer(2, 4, GL_FLOAT, GL_FALSE, 0, 0); //define an array of generic vertex attribute data void glVertexAttribIPointer(GLuint index, GLint size, GLenum type, GLsizei stride, const GLvoid * pointer)
glUnmapBuffer(GL_UNIFORM_BUFFER);
glBindBufferBase(GL_UNIFORM_BUFFER, 0, uniforms_buffer);
block = (uniforms_block *)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(uniforms_block), GL_MAP_WRITE_BIT);
#pragma endregion
#pragma region Draw Room
model_matrix =
//vmath::rotate((float)currentTime * 14.5f, 0.0f, 1.0f, 0.0f) * //used to constantly rotate
vmath::rotate(45.0f, 0.0f, 1.0f, 0.0f)*
vmath::scale(22.0f);
block->mv_matrix = view_matrix * model_matrix;
block->view_matrix = view_matrix;
block->invertNormals = falseVec;
glCullFace(GL_FRONT);
glDrawArrays(GL_TRIANGLES, 0, numberOfCubeVertices);
#pragma endregion
#pragma region Draw Cube
glUnmapBuffer(GL_UNIFORM_BUFFER); //release the mapping of a buffer object's data store into the client's address space
glBindBufferBase(GL_UNIFORM_BUFFER, 0, uniforms_buffer);
block = (uniforms_block *)glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(uniforms_block), GL_MAP_WRITE_BIT);
model_matrix =
vmath::rotate(0.0f, 0.0f, 1.0f, 0.0f) *
vmath::translate(10.0f, -17.3f, -1.0f) *
vmath::scale(5.0f);
block->mv_matrix = view_matrix * model_matrix;
block->view_matrix = view_matrix;
block->useUniformColor = falseVec;
block->invertNormals = trueVec;
glCullFace(GL_BACK);
glDrawArrays(GL_TRIANGLES, 0, numberOfCubeVertices);
#pragma endregion
}