From 0a2da4f82435a49212e276d9d603e84ac298246d Mon Sep 17 00:00:00 2001 From: Mateja Date: Sun, 27 Dec 2020 00:09:34 +0100 Subject: Reorganize entire project. --- source/Render.cpp | 98 ------------------------------------------------------- 1 file changed, 98 deletions(-) delete mode 100644 source/Render.cpp (limited to 'source/Render.cpp') diff --git a/source/Render.cpp b/source/Render.cpp deleted file mode 100644 index 7aabc43..0000000 --- a/source/Render.cpp +++ /dev/null @@ -1,98 +0,0 @@ -#include - -#include "Render.h" - -Render::Render(int width_, int height_) : Bitmap(width_, height_) -{ - zBuffer = new float[width * height]; - for (int i = 0; i < width * height; i++) - zBuffer[i] = std::numeric_limits::infinity(); -} - -float Render::edgeFun(const Vertice& A, const Vertice& B, const Vertice& P) -{ - return ((P.x - A.x)*(B.y - A.y) - (P.y - A.y)*(B.x - A.x)); -} - -void Render::drawTriangle(Vertice t1, Vertice t2, Vertice t3, Bitmap& texture) -{ - int maxx = fmax(t1.x, fmax(t2.x, t3.x)); - int minx = fmin(t1.x, fmin(t2.x, t3.x)); - int maxy = fmax(t1.y, fmax(t2.y, t3.y)); - int miny = fmin(t1.y, fmin(t2.y, t3.y)); - - Vertice p((float)minx + 0.5f, (float)miny + 0.5f, 0.0f, 0.0f, 0.0f, 0.0f); - - int surface = edgeFun(t1, t2, t3); - int w1_row = edgeFun(t2, t3, p); int w1xk = (t3.y - t2.y), w1yk = -(t3.x - t2.x); - int w2_row = edgeFun(t3, t1, p); int w2xk = (t1.y - t3.y), w2yk = -(t1.x - t3.x); - int w3_row = edgeFun(t1, t2, p); int w3xk = (t2.y - t1.y), w3yk = -(t2.x - t1.x); - - for (int y = miny; y < maxy; y++) { - int w1_vertice = w1_row; - int w2_vertice = w2_row; - int w3_vertice = w3_row; - for (int x = minx; x < maxx; x++) { - - float w1 = w1_vertice; - float w2 = w2_vertice; - float w3 = w3_vertice; - - if ((w3 >= 0 && w1 >= 0 && w2 >= 0) || (w3 <= 0 && w1 <= 0 && w2 <= 0)) - { - w1 /= surface; - w2 /= surface; - w3 /= surface; - - float w = 1.0f / (w1 * t1.w + w2 * t2.w + w3 * t3.w); - float z =/* w * */1.0f / ((w1 * t1.z + w2 * t2.z + w3 * t3.z) * w); - if (zBuffer[(y * (width)) + x] > z) { - zBuffer[(y * (width)) + x] = z; - float u = w * (w1 * t1.u + w2 * t2.u + w3 * t3.u); - float v = w * (w1 * t1.v + w2 * t2.v + w3 * t3.v); - - u = round((u * texture.width)); - v = round((v * (texture.height - 1))); - - int hlp = ((v * texture.width) + u) * 4; - int r = texture.pixels[hlp + 0]; - int g = texture.pixels[hlp + 1]; - int b = texture.pixels[hlp + 2]; - setPixel(x, y, r, g, b); - } - } - - w1_vertice += w1xk; - w2_vertice += w2xk; - w3_vertice += w3xk; - } - - w1_row += w1yk; - w2_row += w2yk; - w3_row += w3yk; - } -} - - -void Render::renderModel(ObjModel& model, Bitmap& texture) -{ - for (int i = 0; i < model.faces.size(); i++) { - - model.vertices[model.faces[i].p[0][0] - 1].u = model.uvcoo[model.faces[i].p[0][1] - 1].u * model.vertices[model.faces[i].p[0][0] - 1].w; - model.vertices[model.faces[i].p[0][0] - 1].v = model.uvcoo[model.faces[i].p[0][1] - 1].v * model.vertices[model.faces[i].p[0][0] - 1].w; - - model.vertices[model.faces[i].p[1][0] - 1].u = model.uvcoo[model.faces[i].p[1][1] - 1].u * model.vertices[model.faces[i].p[1][0] - 1].w; - model.vertices[model.faces[i].p[1][0] - 1].v = model.uvcoo[model.faces[i].p[1][1] - 1].v * model.vertices[model.faces[i].p[1][0] - 1].w; - - model.vertices[model.faces[i].p[2][0] - 1].u = model.uvcoo[model.faces[i].p[2][1] - 1].u * model.vertices[model.faces[i].p[2][0] - 1].w; - model.vertices[model.faces[i].p[2][0] - 1].v = model.uvcoo[model.faces[i].p[2][1] - 1].v * model.vertices[model.faces[i].p[2][0] - 1].w; - - - drawTriangle(model.vertices[model.faces[i].p[0][0] - 1], model.vertices[model.faces[i].p[1][0] - 1], model.vertices[model.faces[i].p[2][0] - 1], texture); - } -} - -void Render::resetZBuf() { - for (int i = 0; i < width * height; i++) - zBuffer[i] = std::numeric_limits::infinity(); -} -- cgit v1.2.3