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fix typo in texels flip

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add support to create a cube in TinyRenderer (quick test)
This commit is contained in:
Erwin Coumans
2016-04-28 12:28:04 -07:00
parent a3767193ce
commit 615effa4d9
7 changed files with 115 additions and 15 deletions
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58
examples/TinyRenderer/TinyRenderer.cpp
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@@ -9,7 +9,7 @@
#include "TinyRenderer/our_gl.h"
#include "../Utils/b3ResourcePath.h"
#include "Bullet3Common/b3MinMax.h"
#include "../OpenGLWindow/ShapeData.h"
Vec3f light_dir_world(1,1,1);
@@ -64,7 +64,8 @@ struct Shader : public IShader {
Vec3f n = (B*m_model->normal(uv)).normalize();
float diff = b3Min(b3Max(0.f, n*m_light_dir_local+0.6f),1.f);
//float diff = b3Min(b3Max(0.f, n*m_light_dir_local+0.3f),1.f);
float diff = b3Max(0.f, n*m_light_dir_local);
color = m_model->diffuse(uv)*diff;
return false;
@@ -91,7 +92,7 @@ struct TinyRenderObjectData
};
*/
TinyRenderObjectData::TinyRenderObjectData(int width, int height, const char* fileName)
TinyRenderObjectData::TinyRenderObjectData(int width, int height)
:m_width(width),
m_height(height),
m_rgbColorBuffer(width,height,TGAImage::RGB),
@@ -101,12 +102,17 @@ m_model(0)
Vec3f center(0,0,0);
Vec3f up(0,1,0);
m_modelMatrix = Matrix::identity();
m_viewMatrix = lookat(eye, center, up);
m_viewportMatrix = viewport(width/8, height/8, width*3/4, height*3/4);
m_projectionMatrix = projection(-1.f/(eye-center).norm());
m_depthBuffer.resize(width*height);
}
void TinyRenderObjectData::loadModel(const char* fileName)
{
//todo(erwincoumans) move the file loading out of here
char relativeFileName[1024];
if (!b3ResourcePath::findResourcePath(fileName, relativeFileName, 1024))
@@ -115,8 +121,47 @@ m_model(0)
} else
{
m_model = new Model(relativeFileName);
}
}
void TinyRenderObjectData::createCube(float halfExtentsX,float halfExtentsY,float halfExtentsZ)
{
m_model = new Model();
char relativeFileName[1024];
if (b3ResourcePath::findResourcePath("floor_diffuse.tga", relativeFileName, 1024))
{
m_model->loadDiffuseTexture(relativeFileName);
}
int strideInBytes = 9*sizeof(float);
int numVertices = sizeof(cube_vertices_textured)/strideInBytes;
int numIndices = sizeof(cube_indices)/sizeof(int);
for (int i=0;i<numVertices;i++)
{
float x = halfExtentsX*cube_vertices_textured[i*9];
float y = halfExtentsY*cube_vertices_textured[i*9+1];
float z = halfExtentsZ*cube_vertices_textured[i*9+2];
m_model->addVertex(halfExtentsX*cube_vertices_textured[i*9],
halfExtentsY*cube_vertices_textured[i*9+1],
halfExtentsY*cube_vertices_textured[i*9+2],
cube_vertices_textured[i*9+4],
cube_vertices_textured[i*9+5],
cube_vertices_textured[i*9+6],
cube_vertices_textured[i*9+7],
cube_vertices_textured[i*9+8]);
}
for (int i=0;i<numIndices;i+=3)
{
m_model->addTriangle(cube_indices[i],cube_indices[i],cube_indices[i],
cube_indices[i+1],cube_indices[i+1],cube_indices[i+1],
cube_indices[i+2],cube_indices[i+2],cube_indices[i+2]);
}
//int shapeId = m_instancingRenderer->registerShape(&verts[0].x,numVertices,cube_indices,numIndices,B3_GL_TRIANGLES,textureIndex);
}
@@ -149,12 +194,13 @@ void TinyRenderer::renderObject(TinyRenderObjectData& renderData)
//viewport(width/8, height/8, width*3/4, height*3/4);
//projection(-1.f/(eye-center).norm());
Vec3f light_dir_local = proj<3>((renderData.m_projectionMatrix*renderData.m_viewMatrix*embed<4>(light_dir_world, 0.f))).normalize();
Vec3f light_dir_local = proj<3>((renderData.m_projectionMatrix*renderData.m_viewMatrix*renderData.m_modelMatrix*embed<4>(light_dir_world, 0.f))).normalize();
{
//for (int m=1; m<argc; m++) {
Matrix modelViewMatrix = renderData.m_viewMatrix*renderData.m_modelMatrix;
Shader shader(model, light_dir_local, renderData.m_viewMatrix, renderData.m_projectionMatrix);
Shader shader(model, light_dir_local, modelViewMatrix, renderData.m_projectionMatrix);
for (int i=0; i<model->nfaces(); i++) {
for (int j=0; j<3; j++) {
shader.vertex(i, j);