itdominator/SWBF2-Classic-Msh-Viewer
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pass data (xyz, uv) with 1 buffer to shader,

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bugs:
2 triangles are not painted, one is wrong positioned
This commit is contained in:
Anakin
2016-11-01 11:51:04 +01:00
parent a875820f48
commit 9d35634c0c
3 changed files with 50 additions and 52 deletions
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82
MshViewer/Source/OpenGlController.cpp
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@@ -7,12 +7,11 @@
#include <glm\gtc\matrix_transform.hpp>
#include "shader.hpp"
#include "Texture.h"
#include <iostream>
#define VERTEX_SHADER "Shader/VertexTextureShader.mv2shdr"
#define FRAGMENT_SHADER "Shader/FragmentTextureShader.mv2shdr"
//#define TEXTURE_NAME "Textures/texture32R.tga"
/////////////////////////////////////////////////////////////////////////
// public constructor/destructor
@@ -25,7 +24,7 @@ OpenGLController* OpenGLController::getInstance(int oglMajor, int oglMinor)
OpenGLController::~OpenGLController()
{
glDeleteBuffers(1, &gluiUVBufferID);
glDeleteBuffers(1, &gluiInstanceBufferID);
glDeleteBuffers(1, &gluiVertexBufferID);
glDeleteVertexArrays(1, &gluiVertexArrayID);
glDeleteProgram(gluiShaderPrgmID);
@@ -72,7 +71,7 @@ void OpenGLController::initDefault()
iAntiAliasingLevel = 4;
gluiUVBufferID = 0;
gluiInstanceBufferID = 0;
gluiTextureID = 0;
gluiShaderPrgmID = 0;
gluiSamplerID = 0;
@@ -113,7 +112,16 @@ void OpenGLController::processInit()
glBindVertexArray(gluiVertexArrayID);
glGenBuffers(1, &gluiVertexBufferID);
glGenBuffers(1, &gluiUVBufferID);
glGenBuffers(1, &gluiInstanceBufferID);
// open attribute position
glBindBuffer(GL_ARRAY_BUFFER, gluiVertexBufferID);
glVertexAttribPointer(VERTEX_INDEX_XYZ, VERTEX_COMPONENTS_XYZ, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)VERTEX_OFFSET_XYZ);
glVertexAttribPointer(VERTEX_INDEX_UV, VERTEX_COMPONENTS_UV, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)VERTEX_OFFSET_UV);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
// get the painter ready
try
@@ -274,24 +282,9 @@ void OpenGLController::updateScene()
// tell sampler to use texture unit 0
glUniform1i(gluiSamplerID, 0);
// open attribute position
glEnableVertexAttribArray(0);
glBindBuffer(GL_ARRAY_BUFFER, gluiVertexBufferID);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
// open attribute uv
glEnableVertexAttribArray(1);
glBindBuffer(GL_ARRAY_BUFFER, gluiUVBufferID);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0, 0);
//draw objects
//// TODO: for all
glDrawArrays(GL_TRIANGLES, 0, vModels.front()->meshSize);
//close attributes
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
glfwSwapBuffers(pWindow);
glfwPollEvents();
@@ -357,48 +350,35 @@ void OpenGLController::loadMsh(const char * path)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glGenerateMipmap(GL_TEXTURE_2D);
glBindBuffer(GL_ARRAY_BUFFER, gluiVertexBufferID);
////TODO: for all
std::vector<GLfloat> tempVertex;
std::vector<Vertex> tempBufferData;
for (unsigned int i = 0; i < vModels.front()->meshSize; i++)
{
tempVertex.push_back((GLfloat)vModels.front()->vertex[vModels.front()->mesh[i] * 3]);
tempVertex.push_back((GLfloat)vModels.front()->vertex[vModels.front()->mesh[i] * 3 + 1]);
tempVertex.push_back((GLfloat)vModels.front()->vertex[vModels.front()->mesh[i] * 3 + 2]);
}
Vertex tempVertex;
tempVertex.position[0] = (GLfloat)vModels.front()->vertex[vModels.front()->mesh[i] * 3];
tempVertex.position[1] = (GLfloat)vModels.front()->vertex[vModels.front()->mesh[i] * 3 + 1];
tempVertex.position[2] = (GLfloat)vModels.front()->vertex[vModels.front()->mesh[i] * 3 + 2];
glBufferData(
GL_ARRAY_BUFFER,
sizeof(tempVertex) * tempVertex.size(),
tempVertex.data(),
GL_STATIC_DRAW
);
////TODO: for all
std::vector<GLfloat> tempUV;
if (vModels.front()->uv == NULL)
{
for (unsigned int i = 0; i < vModels.front()->meshSize; i++)
tempUV.push_back(1.0);
}
else
{
for (unsigned int i = 0; i < vModels.front()->meshSize; i++)
if (vModels.front()->uv == NULL)
{
tempUV.push_back((GLfloat)vModels.front()->uv[vModels.front()->mesh[i] * 2]);
tempUV.push_back((GLfloat)vModels.front()->uv[vModels.front()->mesh[i] * 2 + 1]);
tempVertex.uv[0] = 1.0;
tempVertex.uv[1] = 1.0;
}
else
{
tempVertex.uv[0] = (GLfloat)vModels.front()->uv[vModels.front()->mesh[i] * 2];
tempVertex.uv[1] = (GLfloat)vModels.front()->uv[vModels.front()->mesh[i] * 2 + 1];
}
tempBufferData.push_back(tempVertex);
}
glBindBuffer(GL_ARRAY_BUFFER, gluiUVBufferID);
glBindBuffer(GL_ARRAY_BUFFER, gluiVertexBufferID);
glBufferData(
GL_ARRAY_BUFFER,
sizeof(tempUV) * tempUV.size(),
tempUV.data(),
sizeof(tempBufferData) * tempBufferData.size(),
tempBufferData.data(),
GL_STATIC_DRAW
);
}